assessment report geology and geochemistry the …
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ASSESSMENT REPORT
GEOLOGY AND GEOCHEMISTRY
ON THE
EMERSON CLAIM GROUP
-
Latitude 54O25'N, Longitude 126O54'W
N.T.S. 93L/7W
OWNER/OPERATOR: SELCO DIVISION - BP MINERALS LIMITED 700 - 890 West Pender Street Vancouver, B.C.
. V6C 1K5
BPVR 85-30 C.M. Rebagliati, P.Enge J. Gravel, Geochemist
December, 1985
TABLE OF CONTENTS
SUMMARY, AND CONCLUSIONS
RECOMMENDATIONS
INTRODUCTION
LOCATION AND ACCESS
CLAIMS
EXPLORATION HISTORY
GEOLOGY
LITHOGEOCHEMISTRY
SOIL GEOCHEMISTRY
LIST OF APPENDICES
0 APPENDIX I -SELECTED ROCK SAMPLES
APPENDIX I1 PETROGRAPHIC REPORT, HARRIS J.F. PhD.
APPENDIX I11 STATEMENT OF EXPENDITURES
APPENDIX IV STATEMENT OF QUALIFICATIONS
APPENDIX V GEOCHEMICAL REPORT, GRAVEL J.
PAGE NUMBER
1
1
3
3
. 4
4
5
7
8
9
11
2 3
26
28
LIST OF FIGURES
FIGURE 1
FIGURE 2
FIGURE 3
FIGURE 4
FIGURE 5
FIGURE 6
FIGURE 7
FIGURE 8
FIGURE 9
LOCATION MAP
CLAIM LOCATION MAP
GEOLOGY
ROCK SAMPLE LOCATION MAP
GOLD SOIL GEOCHEMISTRY
MOLYBDENUM SOIL GEOCHEMISTRY
COPPER SOIL GEOCHEMISTRY
LEAD SOIL GEOCHEMISTRY
ZINC SOIL GEOCHEMISTRY
FIGURE 10 SILVER SOIL GEOCEHMISTRY
FIGURE 11 ARSENIC SOIL GEOCHEMISTRY
0 FIGURE 12 SAMPLE LOCATION - SOIL GEOCHEMISTRY
FOLLOWING PAGE
3
4
6
6
In Pocket
11
11
11
It
11
11
11
1.
SUMMARY AND CONCLUSIONS
The investigation of assessment records for potential precious
metal prospects revealed a silver soil anomaly near Emerson Creek
which had not been adequately evaluated by past operators. On
the expiration of the Gooch claims in July, the ground was
restaked by Selco-BP as the Emerson claims. A detailed soil grid
was established over the area of the reported silver anomaly.
Two strong multielement anomalies were outlined over and adjacent
to an altered stock. Enclosing the stock are possibly cogenetic
felsic tuffs. The full extent of the two large soil anomalies
and several smaller anomalies have not been determined:. .
Continued exploration is warranted to evaluate the prospect. 0 RECOMMENDATIONS
The following proposed exploration should be conducted in a
sequential manner.
1. Complete the detailed 25 x 50 metre soil grid to define
the presently identified multielement soil anomalies.
2. C&er the remainder of the claim block with a 50 x 100
metre soil grid to identify new anoamlies. Detail where
appropriate.
2.
3. Geologically map the entire claim block at a scale of not
less than 1:SOOO scale.
4. Utilize extensive backhoe trenching to evaluate the soil
anomalies.
5. Contingent upon favourable trench results diamond drill
mineralized zones.
\
3.
INTRODUCTION
A search of government assessment records revealed a 0
discontinuous silver soil anomaly with associated base metals had
not been evaluated.
This report will summarize the geological and geochemical
exploration carried out on the Emerson property in 1985 by
Selco-BP.
LOCATION AND ACCESS
The Emerson claims are located in an area of gentle to moderate
topography 15 kilometres westnorthwest of H o u s t o n and 4 0
kilometres southsoutheast of Smithers in west-central British
Columbia at latitude 54O25'N and longitude 126O54'W on NTS map
sheet 93L/7 (Figure 1). The centre of the property lies at
approximately 975 metres above sea level.
0
Access from Houston is via the Morice River-Telkwa forestry road.
Nine kilometres north of the Morice River bridge an old logging
road branches off to the west and provides 4 x 4 truck access to
the centre of the claims.
a f , . .
4 .
CLAIMS a -
The property is comprised of two modified grid mineral claims
containing 32 units (Figure 2).
Claim Number # of Units Record # Recordina Date
EMERSON 1 EMERSON 2
20 12
7108 July 2, 1985 7205 August 7, 1985
TOTAL 2 claims 32 units
The claims are located on claim map sheet 93L/7W in the Omenica
Mining Division.
EXPLORATION HISTORY
Earliest recorded activity in the Gooch area (Howe, 1982) was in
1966 when W.H. Smith of Telkwa, B.C. staked the Lybdenum 103
claims and optioned them to Amax of Vancouver, who subsequently
0
staked the Barr 1-42 claims immediately to the west. During the
summers of 1966-68 Amax, as operators, conducted geological
mapping, geochemical surveys for copper and molybdenum, 7 miles
of I.P. work, approximately 4000 linear feet of trenching and
diamond drilling totalling 3079 feet. Amax subsequently dropped
the options giving both the Barr and Lybdenum claims back to
Smith. No drill logs or assays were filed.
In 1969 Fortune Channel Mines staked the claims (Ba, Lb, Cu, Mag,
Jane) around the Barr and Lybdenum claims.
5.
Fortune Channel conducted geochemcial and magnetometer surveys
covering a total of 31.5 line miles between 1969 and 1971. 0
After 1971 it is believed all claims were allowed to lapse.
There is no recorded activity between 1972 and 1976.
In 1977, K.W. Livingstone staked the Jailbird and Jailbird 2
claims to cover ground once held by the Barr and Lybdenum claims.
Work conducted in 1977 included a rock geochemical survey of the
trenches. Samples were analyzed for copper, molybdenum, lead,
zinc, tin, tungsten.
In 1982 SMD Mining Co. Ltd. restaked the property as the Gooch
claims. Work conducted in 1982 included geological mapping and
collecting approximately 300 soil samples.
work undertaken until BP Minerals Limited restaked the property
as the Emerson claims in 1985.
There was no further 0
GEOLOGY
Regionally, the claim area is underlain by Early to Mid Jurassic
andesitic to dacitic pyroclastics, epiclastics, flows and
sedmintary rocks belonging to the Telkwa Formation of the
Hazelton Group. Intruding the Hazelton volcainc rocks are
numerous Upper Jurassic to Middle Miocene granite to diorite
stocks.
6.
On the Emerson claims, intrusive to the volcanic pile is an
intensely altered quartz feldspar porphyry rhyolite (Harris,
1985) stock. Surrounding, and believed to be entrusive
equivalents to the QFP are flow-banded rhyolites, and rhyolite
crystal-tuffs of probable Late Cretaceous-Early Tertiary aged
0
Ootsa Lake Group (Figure 3 ) .
No geological mapping was undertaken in 1985. During scouting of
the soil geochemical anomaly, eleven character samples of altered
felsic rocks were selected and geochemically analysed (Figure 4 ) .
Thin sections were cut from eight of the samples and sent to
Harris Exploration Services for petrographic examination
(Appendix I).
Seven of the eight sections 'are interpreted to be porphyritic
rhyolites which have suffered intense silica-clay-sericite
alteration (samples El, 2, 3 , 5, 8, 10 and 11). These rhyolites
and the monzonite (sample E4) have been intensely fractured and
invaded by several generations of quartz stringers. At sample
site E6 the veinlets and microveinlets fill a closely spaced (1-5
mm) parallel fracture set where as at the other sample sites
veinlets are multidirectional and cross-cutting. A rare, younger
set of drusy veinlets are accompanied by abundant course
pyritohedral pyrite crystals. Minor late-stage vuggy chalcedonic
.
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SELCO DIVISION- BP RESOURCES CANADA LIMITED
EMERSON PROJECT
G E O L O G Y
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L E G E N D
BRECCIA
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. . . . . . . . . v v v v v v v v h . v v v v v v v v v v v v v v v v v v 1 v v
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. / v v v v v v v v v v v v v v v v v v v v v v v
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ep RESOURCES CANAOA LIMITED 0 0
+ EMERSON PROJECT
R O C K SAMPLE LOCATION
I MAP
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7.
quartz veining with grey, silica encapsulated sulphide patches 0 occurs at sample site E5 and was found in rubble fragments at
other localities.
A breccia, possibly an intrusive breccia, with a highly siliceous
matrix and intensely argillized and sericitized fragments is
situated at sample site E10.
Within the area examined, pyrite in low concentrations ranginb
from 1 to 4 % is ubiquitious. Except for the few drusy veinlets,
pyrite is not preferentially located within quartz veinlets.
LITHOGEOCHEMISTRY
The eleven rock samples analysed by A . A . methods for gold and by
ICP for 30 elements were lithological character specemens and
should not be considered representative of mineralization (Figure
0
6)-
Samples El to 9 are geochemically enhanced in gold containing 18
to 5 0 5 ppb. Samples El and E6 contain 2 0 5 and 505 ppb
respectively (Appendix 11). The samples do not explain the two
large silver-base metal-indicator element anomalies identified by
the soil geochemical survey.
8.
T. SOIL GEOCHEMISTRY
A north-south grid, with 50 metre line and 25 metre sample
~ ~ 2 o ’ h f \ b 4D-m- d a spacing, was established over the core of the silver anomaly
indicated by the assessment records.
Two distinct multielement anomalies are identified. The northern
east-west trending, gold, molybdenum, copper, lead, zinc anomaly
is centered over the QFP rhyolite intrusion and generally is more
intense over the breccia pipe (Figures 5, 6 , 7, 8 and 9). The
second anomaly with a similar metal association has an
eastsoutheast trend. From the paucity of outcrop and the lack of
geological mapping it is not known with certainty if the second
anomaly is underlain by felsic tuffs~or by the rhyolite
intrusion. Silver (Figure 10) distributions vary from the other
metals. While generally conforming to the distribution of the
other elements within the confines of the two major anomalies it
also displays a prominent northeast-southwest cross-cutting trend
which connects the two major gold-base metal anomalies. This
divergence suggests the presence of a separate silver
mineralizaing event. The two major anomalies and several other
smaller ones remain open to further expansion.
a
A more thorough eXamination of the soil geochemistry is contained
in Gravel’s report contained in Appendix 111.
9.
APPENDIX 1
SELECTED ROCK SAMPLES
ACME ANALY I SELCO - GP IiE$Ulji14c<
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11.
APPENDIX I1
PETROGRAPHIC REPORT, HARRIS J . F . PhDa
12.
EXPLORATION S E RVlC €3
MINERALOGY AND GEOCHEMISTRY
TELEPHONE (604) 929-5867 534 ELLIS STREET, NORTH VANCOUVER, B.C., CANADA V7H 2G6
Job #85-65
November 8th, 1985 Report for: Mark Rebagliati,
B .P. /Selco , 700-890 West Pender St., Vancouver, B.C. V6C 1K5
Samples :
Samples are numbered E-1, 2 , 3, 4 , 5, 8, 10 and il. are 85-198X through 205X.
8 rock samples from Project 10246 for thin sectioning and petrographic study. Corresponding slide numbers
Surmnary :
They are felsic igneous rocks which have been intensely altered and are now composed largely of quartz and sericite.
remnant plagioclase). only traces of relict plagioclase, and E-2, E-8 and E-10 contain none.
(with pseudomorphed phenocrysts of plagioclase and biotite and a few phenocrysts of primary quartz). containing a propcrtion of clays with the sericite; quartz phenccrysts, indicative of an intrusive or effusive origin similar to the other samples.
Tne highly siliceous, leucocratic composition prompts the classification of these rocks as rhyolites. The phenocrysts and at least part of the groundmass quartz appear to be primary. segregaticn/silicification in the forn of diffuse networks, pockets and veinlsts of quartz.
concentration of sericite in these rocks is suggestive of an original composition high in potassim.
relationship to the primary grain structure, alteration features or siliceous veining, and appears to be a part of the overall process of alteration. observation of the sulfides as
With one exception (E-4), these samples are of similar compositional type.
They show a range in intensity of alteration (as measured by the abundance of E-11 .is the least altered, E-3 more so, E-1 and 5 contain
0 E-1, 2, 3, 5 and 11 exhibit more or less well-marked porphyritic textures
E-8 and 10 are less clear-cut texturally and differ in
None of the rocks show fragmental textures indicative of tuffs.
however, both contain scattered
There is also a gradation of deuteric to hydrothei-mal
The lack of any K-feldspar could be judged atypical of rhyolite, but the high
All the samples contain disseminated pyrite. Tnis exhibits no consistent
No detailed regards minor associated phases was possible in -
the absence of polished sections. were seen in E-3 and E-5.
Traces of a metaliic g;ey material (molybdenite?),
13.
Sample E-4 is of different conposition, containing K-feldspar and exhibiting chlorite-carbonate-qhi’icole ateration as well as silicification. be a form of monzonite or quartz monzonite.
It appexs to e Individual petrographic descriptions of each sample are attached. Tne enclosed photomicrographs illustrate some of the features indicative
of porphyritic character in these rocks, as well as the style of sericitic and siliceous alteration.
/I-
[ J.F. Harris Pn.D.
Sample E-1 (Slide 85-19SX) iU2ERED PORPHYRITIC RHYOLITE
Estimted mode quartz 45 Plagioclase 8 Serici te 46 Pyrite 1 Rbtile ) trace Sphene )
This is an intensely altered rock in which original textures and mineralogy It now consists essentially of fine-grained felted have been largely destroyed.
sericite and granular quartz.
0.02 - 0.2m in size, forms irregular patches and discontinuous networks containing more or less intergrown fine-grained sericite. scattered pockets of coarser, sericite-free quartz are also common.
"ne quartzose material surrounds and outlines sub-prismtic patches , 0.05 - 2.Gm in size, of homogenous fine-grained felted sericite, within which diffuse remnants of piagioclase are sometimes recognizable. These sericite patches, though lacking sharp outlines, probably represent altered plagioclase phenccrysts.
'Ihe quartz, which is mainly as mosaics and loose clusters of anhedral grains,
Fairly well-defined veins and
Scattered quartz phenocrysts, 0.5 - l.Om in size, aie also present. It is unclear how much of the pervasive network quartz is an original primary
It seems likely that it is, at least in part, of an introduced nature. component. Certainly this is true of the coarser, pockety segregations and veins within it.
Pyrite forms small disseminated grains, 0.02 - 0.2mm. These appear randomly aistributed without obvious structuralcontroi. sericitic areas alike, and also fill micrcfractures in quartz phenocrysts.
They occur in quartzose and
15.
- Svnple E-2 (Slide 85-199X) ALTERE3 PORPh'YRITIC RHYOLITE
Estimated mode Quartz 45 Sericite 53 Pvrite 2
0
RLtile ) trace Sphene )
Tnis is a similar rock to E-1 but even more intensely altered. No remnant feldspar is recognizable.
Despite the total alteration, the original porphyritic texture is better presewed than in E-1, principally because of a lack of vein-type or fracture controlled quartz.
The rock consists of abundant, rather well-defined, angular, prismatic patches, 0.5 - 5 . h in size, of fine-grained felted sericite, clearly pseudomorphous after feldspar (probably plagioclase) phenocrysts .
Tnese are set in a groundmass of evenly granular, anhedral, mosaic quartz (0.05 - O.lmm), containing more or less intergranular sericite and small concentrated patches of sericite representing partially assimilated smaller plagioclase grains.
better crystallized sericite-or muscovite with cleavages aiphasized by inclusions . of fine-grained rutile and sphene. Sparse quartz phenocrysts to ~.GTIUII in size are also seen.
'
Also present are scattered prismatic pseudomorphs, 0.5 - 2 . h in size, of
These probably represent original biotite.
Pyrite forms randomly disseminated clumps of subhedral grains 0.02 - 0.2mm. 0 Tnese are mainly in the siliceous groundmass but also occur within altered biotite and altered feldspar pseudomorphs.
Tnis sample lacks obviously introduced quartz in the forms of veinlets arid pockets. The fact that the sericitized feldspar pseudomorphs are totally unsilicified suggests that much of the groundmass quartz may be primary. product of wholesale pervasive silicification.
Tne origin of the granular quartz of the groundmass is arguable.
The alternative is that Lit is a
16.
S m l e E-3 (Sl ide 85-2OOX) ALTERED PORPHYRITIC RHYOLITE
Estimated mode Quartz 40 Plagioclase 16 S e r i c i te 42 P y r i t e 2 R u t i l e ) trace Sphene ) . .
This rock i s very similar t o E-1 i n that i t contains a proportion of remnant, unser ic i t ized plagioclase, and that i t exhibits veniform and d i f f u s e s i l i c i f i c a t i o n . The phenocrysts are, however, somewhat coarser .
replaced by fine-grained f e l t e d sericite t o form somewhat diffuse-outlined sub- prismatic pseudomorphs.
in te rgranular f lecks of sericite arid r e l a t i v e l y unaltered plagioclase gra ins of =
similar s i z e t o the quartz.
quartz which is probably related t o the more o r less d e f i n i t e quartz veins which cut of the sample.
A few prismatic pseudomorphs of p l a ty muscovite, 0.5 - 2 . h i n s i z e , with fine-grained rutile/sphene occur. These probably represent altered b i o t i t e . More abundant smaller f lakes of similar material i n the s i z e range 0.1 - 0.2m occur throughout.
o r coalescent. They loca l ly show s t r u c t u r a l cont ro l i n that they form l i n e a r t r a i n s arid some are of an in te rgranular mode i n vein quartz . they show no cons is ten t r e l a t ionsh ip t o the s i l i c i f i c a t i o n o r the primary t e x t u r a l features . Minute traces of a metallic grey mineral were noted i n the vein quartz .
Plagioclase phenocrysts, 0.5 - 5.Omm i n size, are in tense ly (70% - 80%)
These are set i n a matrix of anhedralgranular quar tz , 0.05 - O.lm, with
This matrix o r groundmass contains i l l -def ined pockets of coarser-grained
0 Rare small quartz phenocrysts are a i s o present . P y r i t e occurs as randomly disseminated gra ins , 0.02 - 0.2b1, of ten clustered
For the most p a r t ,
1 7 .
S m l e E-4 (Slide 8520%) SILICIFIED MONZONITE?
Estimated mode Quartz Plagioclase K-feldspar Serici te Chlorite Carbonate Secondary amphibole Rutile ) Leucoxene ) Fe-Ti oxides Sulfides
e 20 40 15
2 8 5 7 1 2
trace
This sample exhibits features distinguishing it from others of the suite - notably the presence of K-feldspar and chlorite. rock, though recognizably of igneous origin.
Plagioclase is the dominant constituent. msses, 0.5 - 3 . h in size, set in a granular feldspathic groundmass with patchily distributed intergrown K-feldspar and granular quartz of grain size 0.05 - 0.lmm.
%e coarser plagioclase masses are sometimes somewhat irregular in shape and appear to be polycrystalline, but some are of normal prismatic form. typically show more or less strong alteration of a distinctive (and rather unusual) type, to various combinations of fine-grained carbonate, chlorite, olive green secondary amphibole and sericite.
veinlets and interstitial flecks in the grcundmass.
grains (0.01 - 0.lm) seem to be mainly oxides. grained rutile and leucoxene. an association with pockets of chlorite and also occurrin Rare traces of sulfides (pyrite and possibly chalcopyrite 'j are seen. section, shGw rather ili-defined contacts with the adjacent feldspathic matrix. It is possibly that much of the granular quartz of the matrix - which tends to occur as pockets and networks - is of introduced origin, related to the veining quartz.
It may be a minor intrusive of silicified monzonite o r quartz monzonitic composition.
It is a rather messy heterogenous
This occurs as phenocryst-like
They
Chlorite is also widely distributed as ragged flakes, pseudomorphic patches,
Opaques, which occur as disseminated clusters of irregular to subhedral
0
They often show intergrown fine- They are randomly distributed, sometimes showing
in quartz veinlets.
The rock is cut by rather numerous veinlets of granular quartz which, in thin
This rock is something of an enigma.
18.
ALTERED POWWRITIC RHYOLITE Sample E-5 (Slide 85-202X)
Estimated mcde Quartz 45 Plagioclase 4 Serici te 47
1 Rutile ) Sphene ) Pyrite 3
This is another rock of simiiar type to E-1. Plagioclase phenocrysts, 0.5 - 2 . h in size, are completely altered, being
represented by rather poorly-defined sub-prismtic patches of fine-grained, felted serici te . 0.lm in size, in small mosaic patches and "floating" in sericite which represents original intergrown feldspar. recognizable in this association. J
Small muscovite flakes with dusty rutile (altered biotite) are scattered through the groundmass and there are rare,coarser, prismatic altered biotite phenocrysts to 0.5 - l.0m.
Quartz of coarsec grain size (0.1 - 0.3m) forms more or less well-defined veins as well as diffuse replacement pockets. (plagioclase pseudomorphs) have core replacements of vuggy quartz and/or pyrite.
Pyrite forms relatively abundant clumps of subhedral granules to 0.5m. occur in diverse modes. some are in fractures and pockety replacements of the coarser quartz.veins; in altered plagioclase and mafic pseudomorphs; through the siliceous groundmass. with the pyrite.
These are set in a groundmass consisting o'f anhedral quartz grains, 0.05 - A few small remnants of plagioclase are locally
No quartz phenocrysts were seen in this slide.
A few of the sericite masses
These Some show linear distribution (control by microfractures) ; 0
some and some randomly distributed
There is no specific associated gangue component
19.
Sample E-8 (Slide 85-203X) ALTERED RHYOLITE
Estimatsd mode Quartz 46 Serici te 40
1 Rutile) Sphene)
Clays 10
Pjri te 3
This is a rock composed of the essentialiy same minerals as E-1, 2, 3 and 5, but showing a subtly different texture. defined and gradational with the siliceous groundmass. grained than in the earlier rocks, consisting of a cherty aggregate of grains aroufid 0.Olmm in size, often with more or less intergrown sericite.
The sericitie msses (which appear much more distinct on the etched chip than they do in the thin section) also exhibit distinctive features. consist of patchy intergrowths of extremely fine-grained material (brownish, with colloform-like zoning in ordinary light) which is probably a clay, and sheaves and meshworks of a slender, elongate, almost acicular sericite.
grained, felted sericite masses of earlier samples. are mch more diffusely intermixed in this rock and it seems possible that it was more of a felsitic, or even glassy, type of rhyolite than the other (porphyritic) samples.
Tne characteristic biotite pseudomorphs of earlier samples ar2 absent. strongly corroded, or partially assimilated, quartz phenocrysts are, however, present.
coarser-grained quartz (grain size up to 0.2m) are scattere6 tnroughout. impression is that much of the quartz nay be a product of pervasive silicification.
Tiny granules of brown rutile and/or sphene are rather common, as random disseminations and clusters associated with tne meshwork sericite.
Pyrite exhibits the usual features. clumped. for the pyrite to concentrate within the larger patches of clays and sericite, often in vuggy pockets with associated quartz.
The areas of sericite are often very ill- The latter is mainly finer
They tend to
It is uncertain whether these masses are altered phenocrysts like the even- The quartz and sericite/clays
A few
No quartz veining is detectable but irregular patches and pockets of rather The
It occurs as grains 0.05 - 0.2m, often Tnere is a distinct tendency St-mctural control is apparently lacking.
2 0 .
Sample E-10 (S l ide 85-204X) ATxERED RHYOLITE
Estinated ride Quartz 50 S e r i c i t e 35 Clays . 9 Rut i le ) Sphene ) Pyr i t e 4
Tnis is a rock of similar type to E-8. appears intensely a l te red .
Quartzof highly variable grain size (ranging down t o about 0.02mm) i s intimately and d i f fuse ly intergrown with i r r egu la r areas of sericite and clays. Tne most clearly defined prismatic f o m are made up of masses of fine-grained r e t i c u l a t e sericite with t iny i n t e r s t i t i a l granules of r u t i l e arid sphene. may represent a l t e r ed mafic phenocrysts. Some examples of the f laky muscovite
gra inswi th r u t i l e inclusions i n cleavages (described i n o ther samples of the s u i t e as pseudomorphs of b i o t i t e ) are a l so present, as are a few rounded, corroded quartz phenocrysts t o 2 . h .
and sca t te red grain c lus t e r s of anhedral mosaic quartz (grain s i z e 0.1 - 0.3mi) which occur throughout. late s tage deuter ic segregation e f f ec t .
Disseminated p y r i t e i s r a the r abundant and a t t a i n s gra in sizes up to 0.5m (sometimes coalescing to coarser clumps and networks). associat ion, but i s notably concentrated as i n t e r s t i t i a l networks i n some of the granular quartz pockets and as c l u s t e r s within the l a rge r sericite/clay pseudomorphs.
It i s tex tura l ly heterogenous and
These
The latter are qu i t e d i s t i n c t from the abundant, i r r egu la r to elongate patches
These seem to represent a pervasive s i l i c i f i c a t i o n o r
i t shows the usual diverse 0
2 1 .
Sample E-11 (Slide 85-205X) POWHYF~ITIC RHYOLITE
Estimated mode QUZtZ 35 Plagioclase 25
. Sericite 35
Limonite ) trace Jarosi te ) Pyrite 1
Tnis sample represents anotner variant of the felsic porphyries constituting the suite. remnant plagioclase.
many aie quite small, in the 0.2 - 1 . h range. prismatic and well-defined. They consistently show argillic cloudiness, together with a highly variable degree of sericitization - ranging from essentially nil to almost complete conversion to felted sericite. altered.
It is noticeably less altered than the majority and contains considerable
Phenocrysts are dominantly plagioclase. These range up to 3nm in size but They are sha-rply euhedral,
The majority are relatively lightly
Quartz phenocrysts, 0.2 - 1 . 5 m in size, of typical sub-rounded, corroded form, are noticeabiy more abur,dant than in other rocks of the suite.
Scattered well-formed prismatic pseudomorphs of flaky muscovite with rutilized
These phenocrysts are set in a groundmass of evenly felted, very fine-grained cleavages are also present.
sericite within which are set abundant more or less diffuse patches of granular mosaic quartz of grain size 0.05 - 0.1m. This may well be a'pr-imary constituent of the groundmass, tne intergrom feldspathic component of which has been totally sericitized.
of much coarser quartz (grain size to 2.Ornm) which shows strain polarization, a tendency to radial or feathery structure, and zonal patterns of elongate, vermicular fluid inclusions. This is probably of late mgnatic/deuteric origin.
.
Some areas of the slide include irregular, inter-connected pockets and networks
Pyrite is relativeiy sparse and fine-grained. It is randomly distributed and shows no association with the cDarser quartz pockets.
The slide is traversed by a fracture zone with staining and encrustations of limonite and marginal impregnations of what appears to be jarosite. appears to be introduced rather than derived by oxidation of contained pyrite.
This limonite
22 .
EXPLO RAT1 ON SERVICES
MINERALOGY AND GEOCHEMISTRY
534 ELLIS STREET, NORTH VANCOUVER, B.C., CANADA V7H 2G6 TELEPHONE (604) 929-5867
Invoice #85-65
November 8th, 1985
In account with: Selco division of B.P. Canada,
Vancouver , B . C . V6C 1K5
. 700-890 West Pender St.,
Charges for professional services re petrographic study of rock samples from Project 10246 fo r Mark Rebagliati.
Preparation (at cost) 8 thin sections (including impregnation & staining) $ 74.00
Photomicrographs (10) i 95.00
Microscopic examinations & report 360.00
Total $ 529.00
2 3 .
APPENDIX I11
1985 STATEMENT OF EXPENDITURES EMERSON 1 & 2 CLAIMS
24.
APPENDIX I11
1985 STATEMENT OF EXPENDITURES - EMERSON 1 & 2 CLAIMS
Labour
John Gravel - Geochemist August 10-14 5 days @125/day $625 October 8-9 2 days @125/day $250
$875
Gordon Campbel - Assistant August 10-13 4 days @65/day $260
Rick Diment - Assistant August 11-14 4 days @65/day $260
Chris Nichols - Assistant August 11-14 4 days @65/day $260 October 4, 8-9 3 days @65/day $195
Waldy Piotrowski - Assistant October
Food and Accomodation
4, 8-9 3 days @65/day $195
$1170 $2045
25 Man Days @6O/Man Day
TransDortation
Truck Rental, Mileage and Gas 8 days @90/day
Field Supplies
Flagging, Topofil Thread, Sample Bags, etc.
Analvtical Costs
Shipping, Processing and Analysis 662 Samples @$12.50/sample
Computer Processing
Digitizing, Keypunching, Stats and Plotting 662 Samples @$1.85/sample
$1500
$720
$200
$8275
$1225
25.
Geology
C.M. Rebagliati - Senior Geologist October 2 and 3 2 days @$2OO/day
Harris Exploration Services Petrographic Study
ReDOrt PreDaration
$400
$529
Writing, Word Processing, Drafting 6 days @$150/day
TOTAL
$900
26.
APPENDIX IV
STATEMENT OF QUALIFICATIONS
27.
APPENDIX IV
STATEMENT OF QUALIFICATIONS
C.M. Rebagliati, P.Eng.
B.Sc. Geological Engineering, 1969 Michigan Technological University Houghton, Michigan, U.S.A.
Registered Professional Engineer in The Association of Professional Engineers of the Province of British Columbia.
J.L. Gravel, M.Sc.A.
B.Sc. Geology, 1979 McGill University Montreal, Quebec
M.Sc.A. Geology, 1985 McGill University Montreal, Quebec
Member of Association of Exploration Geochemists.
2 8 .
APPENDIX V
GEOCHEMICAL REPORT, GRAVEL J.
SUMMARY AND CONCLUSIONS
RECOMMENDATIONS
DESCRIPTION OF RESULTS 1. Gold 2. Silver 3 . Molybdenum 4 . Copper 5 . Lead 6 . Zinc 7 . Arsenic 8. Antimony 9 . Nickel 10. Manganese 11. Iron 12. Cobalt 13. Cadmium 14. Vanadium 15. Barium 16. Strontium 17. Aluminum 18. Calcium 19. Magnesium 20. Potassium 21. Phosphorus 22. Chromium 2 3 . Lanthanum
29.
TABLE OF CONTENTS
PAGE NUMBER
DISCUSSION OF RESULTS
LIST OF APPENDICES
APPENDIX I GEOCHEMICAL PREPARATION AND ANALYTICAL PROCEDURES
APPENDIX I1 LIST OF ANALYTICAL DATA
APPENDIX I11 METHOD OF HISTOGRAM INTERPRETATION
31
3 2
3 2 3 2 3 3 3 3 3 3 34 3 5 3 5 3 5 36 36 36 37 3 7 37 37
38 38 38 3 9 39 3 9 39
38
3 5
4 4
47
49
30.
LIST OF FIGURES
FIGURE 1 FIGURE 2 FIGURE 3A FIGURE 3B FIGURE 3C FIGURE 3D FIGURE 3E FIGURE 3F FIGURE 3G FIGURE 3H FIGURE 31 FIGURE 3J FIGURE 3K FIGURE 3L FIGURE 3M FIGURE 3N FIGURE 30 FIGURE 3P FIGURE 3Q FIGURE 3R FIGURE 3s FIGURE 3T 0 FIGURE 3U FIGURE 3V FIGURE 3W FIGURE 4 FIGURE SA FIGURE 5B FIGURE 6
Proposed Grid Extension Proposed Trench Sampling Soil Anomaly Plot - Gold Soil Anomaly Plot - Silver Soil Anomaly Plot - Molybdenum Soil Anomaly Plot - Copper Soil Anomaly Plot - Lead Soil Anomaly Plot - Zinc Soil Anomaly Plot - Arsenic Soil Anomaly Plot - Antimony Soil Anomaly Plot - Nickel Soil Anomaly Plot - Manganese Soil Anomaly Plot - Iron Soil Anomaly Plot - Cobalt Soil Anomaly Plot - Cadmium Soil Anomaly Plot - Vanadium Soil Anomaly Plot - Barium Soil Anomaly Plot - Strontium Soil Anomaly Plot - Aluminum Soil Anomaly Plot - Calcium Soil Anomaly Plot - Magnesium Soil Anomaly Plot - Potassium Soil Anomaly Plot - Phosphorus Soil Anomaly Plot - Chromium Soil Anomaly Plot - Lanthanum Multielement Anomalous Zones Anomaly Summary (Au, Ag, As) Anomaly Summary (Pb, Zn, Mo) Composite Rock Chip Trench Samples
FOLLOWING PAGE
32 32 32 33 33 33 34 35 35 35 36 36 36 37 37 37 37 38 38 38 38 39 39 39 39 4 0 42 42 41
LIST OF TABLES
PAGE NUMBER
TABLE 1 Element Associations in Anomalous Zone 41 I Base, Precious and Pathfinder
TABLE 2 Base, Precious and Pathfinder Elements 42 From Composite trench Samples
31.
SUMMARY AND CONCLUSIONS -
A soil survey was conducted on the Emerson property from August
to October 1985 to test a Au-Ag-Mo target. A total of 662 soil
samples were collected using a 50 metre X 25 metre grid density.
Eight composite rock chip samples were gathered from trenches
present. Two polymetallic zones of interest were uncovered in
the northeast grid quadrant corresponding to a trenched region
and in the southwest quadrant in an area of outwash and swamps.
Analysis of soils and rock chips confirm anomalous concentrations
in the trenched area of gold (soils: 80-350 ppb, trenches:
40-250 p p b ) , silver (soils: 3-11 p p m , trenches: 2-25 pprn),
molybdenum ( s o i l s : 20-115 ppm, trenches: 10-56 pprn), copper
(soils: 90-180 ppm, trenches: 50-930 ppm) and lead (soils:
125-2200 ppm, trenches: 90-130 ppm). Anomalous soils define an
area 400+ metres long X 300 metres wide and open to the east and
west .
0
Multielement Anomaly 2 defines a west to northwest trend 400+
metres long. The suite of anomalous elements is much like
Anomaly 1; gold 80-350 ppb, silver 2-12 ppm, copper 90-190 ppm,
lead 125-760 ppm, zinc 300-650 ppm and arsenic 40-300 ppm.
Maximum concentrations generally correlate to boggy ground.
Coincident maximum levels of manganese suggest two possible
3 2 .
conditions, either manganese enrichment in relation to bedrock
mineralization, a common feature in several deposit types, or
manganese scavenging.
0
RECOMMENDATIONS
1. Completion of the soil grid is required to fully outline the
two polymetallic zones. Recommended grid extensions are
given in Figure 1.
2. Trenching of both zones is needed to define mineralization
patterns and understand the geology. Figure 2 describes the
recommended trenches.
DESCRIPTION OF RESULTS
1. Gold (Fig. 3A)
Gold is predominantly concentrated in the northeast quadrant
of the Emerson grid in a region of thin till over altered
bedrock that has been abundantly trenched. A northwesterly
trend is described by a high concentration zone of samples
ranging from 100 to 350 ppb.
A string of isolated gold enriched samples roughly define a
northwest trend in the southwest quadrant.
0 ' . . ,
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0 Anohnly NTS 93L/7 SCALE 1: 10000
I \ M E T R E S
3 3 .
2. Silver (Fig. 3 B )
Anomalous silver describes a Y shaped anomaly having a lower
west to northwest arm and an upper southwesterly arm
extending from the trench zone. Silver roughtly coincides
with gold in each arm. Maximum values range from 5.0 to
11.7 ppm Ag, a-10 to 20 fold increase over background
concentrations.
3 . Molybdenum (Fig. 3C)
Two anomalous molybdenum areas have been outlined, the
largest (approximately 700 m ) correlates gold in the trench
zone, similar to 'gold and silver.
2
Anomaly trend is to the
northwest. Maximum concentration is 115 ppm, a 2 3 f o l d
increase over background.
Two samples define the second anomaly also coincident to
gold and silver lying 150 metres southwest of an Anomaly 1
in a westerly trending zone of enhanced background. Peak
concentration is 68 ppm.
4 . Copper (Fig. 3D)
Anomalous copper in soils forms three clusters of anomalies.
Cluster 1 lies in the southwest grid quadrant and has
westerly to northwesterly trend. Length of the cluster is
9 e
13 CB
20 €9 @\3- 40 orc.*o.
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@ T r e n c h e s
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*,----
( 1
.* I ..-- --
0 100 200 300 400
M E T R E S
OATE DEC/BS ?ilOJECT 903/10245
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22
32
55
75
90
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SOIL GEOCHEMICAL SURVEY
SMITHfRS P.G. - B.C. 69 T r e n c h e s ._ I -"'- C r e e k .._.- -1 c. - ___. --. Swamp, S e e p a g e Zones
0 Anomaly
I COPPER D I G NO.
DLTE DEC/05 P2OJECT 903/10246
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M E T R E S
3 4 .
5 0 0 metres. Peak enrichment is 188 ppm, roughly 7X
background.
Numerous copper anomalies defining a northwesterly trend and
coinciding with enriched gold, silver and molybdenum are
found over the trenched zone. Maximum copper enhancement
ranges from 100 ppm to 176 ppm.
Enriched copper (up to 177 ppm) in soils forms a
northeasterly trending anomaly that extends off the eastern
grid boundary.
5. Lead (Fig. 3 E ) ,
Enhanced lead in soils describes a single anomaly similar to
silver having several higher concentrations cores. 0
The west to northwesterly portion of the anomaly correlates
to elevated silver, molybdenum and copper in the southwest
quadrant of the grid. Maximum concentration is 764 ppm.
Enrichment is greatest (400-2200 ppm) over the western half
of the trenched zone. Southwesterly and southeasterly
trending extensions are observed leading from the trench
zone. A small, moderate grade anomaly lies on the northen
tip of the grid 50 to 75 metres from the trench zone.
637000 w-x .
PD 0
25
50
60
90
125
*
0
0
0 j- 175 4-
LEGEND
--- Road
& T r e n c h e s
*c----
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.--"'- C r e e k ..*-. - c* -- - -' Swamp, Seepage Zones
0 Anomaly 0 200 300 4 0 0
\ M E T R E S
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S? ilESOUilCES CaN4Dt LIMITED
EMERSON CLAIMS SMITHERS P . G . - B . C .
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35.
6. Zinc (Fig. 3F)
Anomalous zinc defines three zones. The largest lies in the
southwest grid quadrant similar to molybdenum, copper and
lead. Maximum values are from 400 to 656 ppm.
A four sample anomaly is found in the trenched zone, peak
concentration is 456 ppm. A moderate grade zinc anomaly
extends off the grid north of the trenched zone. Several
anomalies are found on the east edge of the grid roughly
corresponding to a zone of anomalous copper.
7 . Arsenic (Fig. 3G)
Enriched arsenic in soils cluster in the south-central,
north-central and southeastern portions of the grid.
Anomalous levels range from 50 ppm to 301 ppm. A
northeasterly trend is suggested in each case.
0
8. Antimony (Fig. 3 H )
Antimony does not describe a well defined pattern of
anomalies as seen in previous elements. Elevated values are
generally found in the central portion of the grid. Maximum
concentration of antimony in soil is 41 ppm.
)- 0
W b 0 0 0
..,I. ,,11*,'
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C r e e k SOIL GEOCHEMICLL SUWEY .e-+ .I. %."
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3 6 .
9. Nickel (Fig. 31) e Anomalous nickel is present in three areas: in the southwest
quadrant, north of the trench zone and along the east edge
of the grid. Highest concentrations are 40 to 7 4 ppm, a 3
to 5 fold increase over background.
10. Manganese (Fig. 35)
Anomalous manganese is observed coincident to the
multielement enhancement zone in the southwest grid
quadrant. Peak soil concentrations range from 3500 to
19,800 ppm.
Moderately enhanced manganese levels correlating to
anomalous nickel, zinc and lead lies north of the trench
zone. Background concentrations predominate over the
trenched area. Manganese forms several anomalies on the
east edge of the grid similar to nickel, zinc and lead.
11. Iron (Fig. 3K)
Anomalous iron levels are principally found over the
trenched area with an extension to the southeast. Elevated
values range from 8% to 16%. Anomaly distribution resembles
the lead pattern best, elevated iron values are absent in
the southwest grid quadrant.
*
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\ M E T R E S
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400
700
1100
1500
2000
+
0
8
0 + 3500 &
SOIL GEOCHEMICAL SUFlVEY MANGANESE
FIG. 3, NTS 93L/7 -
/
- C r e e k / ... .- - CL. - _- ' Swamp, Seepage Zones
0 Anomaly 0 100 200 300 4 0 0
M E T R E S
, FE 0
3.5.
4.5
5.5
6
I,
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Q 6.5
-
E? RESOURCES CANPDP LIMITED
EMERSON CLAIMS
SOIL GEOCHEMICAL SUAVEY
LEGEND \------A I
'-- Road -9 - - -
( I . I
I SMITHERS P.G. - B . C . T r e 11 c he s c";3
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0 Anomnly
' \ 0 100 200 300
\ M E T R E S
3 7 .
12. Cobalt (Fig. 3L)
Elevated cobalt levels correlate well to all zones of base
metal enrichment. Concentrations in these areas are
generally at enhanced background to threshold levels.
Maximum concentrations range from 2 4 ppm to 123 ppm.
13. Cadmium (Fig. 3M)
Thirteen samples contain cadmium in detectable amounts,
highest concentration is 14 ppm. Cadmium follows zinc in
its distribution pattern.
14. Vanadium (Fig. 3N)
The vanadium plot is very noisy having a shot-gun pattern of
anomalous samples indicating random distribution of a normal
background range of values.
0
15. Barium (Fig. 3 a )
Enhanced barium forms soil anomalies in the southwest
quadrant, over the trenched area and along the northedge of
the grid. Trend directions are predominantly to the
northwest. Peak concentrations are from 500 to 1200 ppm.
S-LCO DIV:SION - 5 ? AEfOUaCES CANaDP LIMITED
w - -I
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T r e n c h e s
Creek SOIL GEOCHEMICAL SUAVEY
<//.--.+3
..--. *.. - ..e- z ' Swamp, Seepage Zones cc. -- __._.
0 Anohaly O'C.*O.
DATE DEC/BS PAOJECT 903/10245
NTS 93L/7 SCALE I: !OOOO F,t, ~ , ,
0 100 200 300 400 . nc*ont "0.
/ , 10 .CCOY..". ncPo*11
M E T R E S , . .
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70
0
*
e
Q 75
8 & -1 85
LEGEND .L'
& T r e n c h e s ( I
'-- Road ..*---
C r e e k r, . I .
_.-. -. c. - __ --. Swamp, Seepage Zones
0 Anohnly 0 100 2 0 0 300 4 0 0
\ M E T R E S
' 1
CO DIVISIOM-
SMITHERS P.G. - E.C. SOIL GEOCHEMICAL SURVEY
VANAD I Ut\ DATE DEC/BS PROJECT 903/10245
NTS 93L/7 SCALE 1: 10000
D W C . N O .
FIG. .j: wmni NO.
I D ICC0YP.Y. l C ? O 9 1 *
225
300
400
e
Q)
500
LEGEND
-- Road
/&' T r e n c h e s - C r e e k
..e----.
+ ... ,.-- 1 c. .I I ' Swamp, See r
t
b-2 W a 0 0 0 ..,' .,. ."
EMERSON C L A I M S SMITHERS P.G. - B . C .
SOIL GEOCHEMICAL SUnVEY
38.
16. Strontium (Fig. 3P)
Anomaly patterns for strontium are nearly identical to
calcium. Scattered enriched strontium samples are noted
assoc ia ted w i t h the trenched zone. Peak concentrat ion is
151 ppm.
17. Aluminum (Fig. 3Q)
The aluminum distributin pattern is fairly similar to
vanadium in that it exhibits a high degree of anomaly
randomness. A slightly higher concentration of enhanced
sample s i t e s is noted north of the trenched areas .
18. Calcium (Fig. 3R)
Four, well defined calcium anomalies are observed in the 0
southwest quadrant, in the northwest grid corner, north of
the trenched zone and along the east edge of the grid.
Elevated concentrations vary from 0.9 to 2.39%.
19. Magnesium (Fig. 3s)
Magnesium follows calcium and strontium in the distribution
of anomalies. Peak enhancement is 1.45%.
SR 0
18
21
30
40
50
.
0
8
0 -+ 75 4- i
W LEGEND W 0 :7
i l .. I I
-"'- Creek c .-.. - ' Swamp, Seepage Z o n e s ,_- --
0 100 200 300 400 . M E T R E S
\
\ \ o I O
SELCO DlVISlOld- s? aEsouacEs C ~ N P D ~ LIMITED
EMERSON C L A I M S SMITHERS, P.G. - B . C .
SOIL GEOCHEMICAL SUWEY
STROtlT I Ut4 D - C . * O . DATE DEC/@S PqOJECT 903/10246
NTS 93L/7 ~~, 1 C P O N "0. SCALE 1: !OOOO
I O ICCDYIINI ncpomi-
A t 1.6
1.8
2.2
2.7
2.9
\ I I I \
- Creek / ... r- ---- c- - _. ' Swamp, Seepage Z o n e s
0 Aiiohnlqr 0 100 200 300 400 -
/ \ M E T R E S
a SELCO D1V:SION- S ? R E S O U X E S CaNPD4 LIMITED
EMERSON CLAIMS
SOIL GEOCHEMTCAL SURVEY
ALUH I NU/-\
S M I T H f R S P.G. - B . C .
DIG "0. DATE DEC/E!S PFIOJECT 9 0 3 / 1 0 2 4 5
NTS 9 3 L / 7 SCALE 1: !OOOO l L 4 1 1 1 "0. F ' L .TO 10 ICCOYL.*.I IcPo' l r *
637000 W.-
MG 0
. 2
.35
.5
.
0 .58
@ i .65
Q .75
LEGEND L' .- Road :7
# C - - - \
.. 1 &'> T r e n c h e s
-"'- C r e e k __.. --
c- -.. ___ ' Swamp, Seepage Zones
(-s Anomaly
\ ,/ 0 100 200 300 4 0 0
.$
M E T R E S \
b 0
w J1 0 0 0 ,/
,,/"
'%\ O'\
.' \ E Q-j SELCO DIVISIOI4-
6i' R E S O U X E S CAN404 LIMITED
EMERSON C L A I M S SMITHERS P.G. - B . C .
SOIL GEOCHEMICAL SUnVEY
MAGNES I UM D I G "0.
FIG. <:; DATE OEC/85 Pi lOJECT 903/10245
NTS 93L/7 SCALE 1: 10000 i t m n r MO
IO I L C O Y P A ~ I a i ron is
39.
20. Potassium (Fig. 3T)
A single potassium anomaly is observed trending to the
northwest across the trenched area. Anomalous
concentrations range from 0.2% to .56%.
21. Phosphorus (Fig. 3U)
A well developed phosphorus anomaly extends from the
trenched areas in the grid centre to southeastwards to the
grid corner. '"Enriched values range from 0.40% to 0.83%.
Elevated background values are noted in the multielement
zone.
22. Chromium (Fig. 3V) e Anomalous chromium samples are predominantly scattered
across the grid in a random manner. Multisample anomalies
are found along the eastern and northern grid edges.
Concentrations are low, the highest value ( 4 9 ppm) is less
than twice the background average of 28 ppm.
23. Lanthanum (Fig. 3W)
Low to moderately anomalous (maximum 52 ppm) levels of
lanthanum are observed along the northern and eastern grid
edges, over the trenched zone and in the southwest quadrant.
0
0
0
ti3 30 200 3 0 0 400 P
, \ M E T R E S
t( .05
.07
09
.12
- 15 D'C. no.
ncconi NO.
IO ICCOUPAUI mc.onis
FIG. 3.1' DATE DEC/B3 PFIOJECT 903/10246
NTS 93L/7 SCALE I: !OOOO
\ LEGEND I
._ Road
-5- e T r e n c h e s - C r e e k
*.----.
'. \ 0
'- i /e. ...
,._.A -.- c. -.. _. -. Swamp, S e e p a g e Zones 0 11
S'LCO DIV!SIOtd - \8 w 5; azsouaczs CANADA LIMITED I
-1 EMERSON C L A I M S
S E I J T H E R S P.G. - B.C.
SOIL GEOCHEMiClL SURVEY -POTASS I Ut4
c-> Anomaly
0
.I
. I 3
. I 9
.25
.3
- .
0
0
Q -k . 4 fjk
, I &> T r e n c h e s ._ I -".- C r e e k
-\ Swamp, Seepage Zones rl. - ___ --- -- 0 100 200 300 400 -- (-7 Anomaly
I \ M E T R E S
. EMERSON CLAIMS S M I T H f R S P.G. - B . C .
SOIL GEOCHEMICAL SURVEY P H O S P H O R U S
D W L UO
DATE DEC/@5 Pi70JECT 903/10245 . y j "CmRI "a NTS 93L/7 SCALE 1: !OOOO
10 .CCO"I.*. 1CPO91l
CR 0
18
28
30
32
35
*
0
0
8
LEGEND I I w SELCO DIV!SION- 5? RESOURCES CAlJPDA LIMITED .-- Road
& T r e n c h e s
,./"-- EMERSON CLAIMS
S M I T H Z R S P.G. - B . C . - C r e e k S O I L GEOCHEMICAL SURVEY r, ... ..-- 1 C. - 2 S w a m p , S e e p a g e Zones
0 100 200 300 4 0 0 0 Anomaly . \
M E T R E S
nrc.*o. DATE OEC/85 PROJECT 9 0 3 / 1 0 2 4 5 . ~ ~ , ncmni NO.
NTS 93L/7 SCALE 1: 10000 10 liCC0Yr.W. *t?0'111
LA 0
10
12
15
20
*
0
\ LEGEND I I ---.
*-.. .Road @ T r e n c h e s
_ # - - -
-"'- Creek
( I I. I ": I
\ rc- --r c - . ' . Swamp, S e e p a s e Zones
" 1 I
/ ' SELCO DI6S1014- 5 ? RESOURCES CaNPDC LIMITED 01
EMERSON C L A I t4S
SOIL GEOCHEHTCAL SU2VEY LAN T t I A kI U H
SMITHERS P . G . - f3.C.
PirOJECT 903/10245
SCALE I: !DO00 FIG,
mr" I n =
[IO LCCOYI."l l l P O 9 1 1 1
I D I G NJ.
\ rc- --r c - - ' Swamp, Seepage Zones
0 Anomaly DATE DEC/f35 PirOJECT 903/10245
NTS 93L/7 FIG,
0 100 200 300
a i r o n i "0.
10 LCCOYI."l l l P O 9 1 1 SCALE I: !DO00
1 M E T R E S
40.
DISCUSSION OF RESULTS
Elemental associations have been compiled on Figure 4 and Table 0
1. Twelve multielement associations have been highlighted.
Anomaly rating scores have been tabulated for each zone by
assigning a 2 for each highly anomalous base, precious and
pathfinder element, a 1 for each moderately anomalous element and
then summing the multielement scores for each zone.
Two areas stand out, these being; the trenched area (No. 1) and
the west to southwest trending zone in the southwest quadrant of
the grid (No. 2 ) . The remaining ten zones have considerably
’ lower scores and either form lower contrast extensions (Nos. 3 ,
4 , 7, 10) of the two zones described above or represent
geochemical features of predominantly non-ore elements (N0.s 5,
6, 8, 9, 11, 1 2 ) . 0
Silver, gold, molybdenum, copper and lead in soils outline a 400
X 300 metre enrichment zone over the trenched area in the
northeastern grid quadrant (Figures Sa & 5b). Maximum
concentration ranges are: gold 80-185 ppb, silver 3-11 ppm,
molybdenum 20-115 ppm, copper 90-180 ppm and lead 125-2200 ppm.
Highest values in soils generally lie in proximity to trenches.
Sources of the anomaly is attributed to the underlying bedrock.
Composite rock chip samples gathered over 1 0 metre intervals from
0
LEGEND I
.-- Road - - - & T r e n c h e s
-"'- C r e e k I_- -1 c.- - --.. Swamp, S e e p a g e Zones
"\ -I
0 100 200 300
QJ SSLCO DIVISION- 6.7 ;1ESOU;1CES CINPDP LIMITED Cn
J
EMERSON C L A I M S S M I T t i f R S P.G. - B . C .
SOIL GEOCHEMICAL SURVEY
MULTlE LE:M ENT AN 0 MAL 0 U S 1.0 I d E S 400 3 DATE D E C / B 5 PaOJECT 903/10245 - n c w w *o.
NTS 93L/7 SCALE 1: 10000 IO .CCOYP.*. "(PO911
M E T R E S / \ %'
0
0
LEGEND
* - - Road
& T r e n c h e s ..”- ... %..e C r e e k
_e---
I ,,../--’ !, $\ ..... ..... .:::.A, \\ ..... ......
.\ I I
1 1 ..I
52 RESOURCES C1fJ1DP. LIMITED m EMERSON CLAIMS
SMITHERS P . G . - B . C .
-.- II . -. I -.. Swamp, Seepage Zones
SDIL GEOCHEMICAL SUAVEY
ANOMALY SUMMARY ( A u , A g , A s ) DATE DEC/85 P i lOJECT 903/10245
NTS 93L/7 SCALE 1: 10000
0 . 4 WO
FIG. 5 . niww ho.
0 100 200 300 400
\
IO ICCOYIIW Icponin M E T R E S
1
LEGEND L' 5 2 ; IESOU;ICES CII.IPD& LIMITED
2- Road _e---.
EMERSON CLAl MS . I SMITHfRS P.G. - B.C. & T r e n c h e s
-1- C r e e k SOIL GEOCHEMICAL SUflVEY &-.. ...
A N 0 M A L Y S U M M A R Y ( P b , % n , I .I o ) _-- -- 0 - C "0
c. - __ ' Swamp, Seepage Zones 0 100 200 300 400 DATE DEC/BS P2OJECT 903/10245 . I C r p R l "0 51J
NTS 93L/7 SCALE 1: !OOOO - 10 .CCO"P.". 1C*D'II* \
M E T R E S
f
41.
the trenches are highly altered and sulphide-bearing, analysis
confirms the presence of anomalous amounts of base and precious a
metals (see Figure 6 and Table 2). The zone is open to the east
and west.
Table 1
ELEMENT ASSOCIATIONS IN ANOMALOUS ZONE
I BASE, PRECIOUS AND PATHFINDER
1 2 3 4 5 6 7 8 9 10 11 12
Au Ag Mo cu Pb Zn As Sb
Score 0
Ni Mn Fe co Cd V Ba Sr A1 Ca Mg K P Cr La
X X X X X X X . - X X X X X X X X X X X X X X X X X X X X X X X x x X X x ". x X X X X X X
1 3 1 3 7 6 2 2 6 3 5 6 2
I1 NON-ORE ELEMENTS
1 2 3 4 5 .6 7 8 9 10 11 12
X X X X X X X X X X
X X X X X X X X X X
X X X X X X X X X
X X X X X
X
X X X
X X
X X X X X
X X X X X X
X
X X X X
X X
X X X
X X X
X X X
X x x
X x x
X x x X x x
X x x x x X
X X X
X - Highly anomalous - Anomaly score = 2 x - Moderately anomalous - Anomaly score = 1
0 100 200 300
\ + /' I
QJ SELCO DIV!SION- 5? 2 E S O U X E S C3NADh L l M l i E D 0,
-I EMERSON C L A I M S
SOIL GEOCHEMICAL SURVEY
C O M P O S I T E ROCK CHIP TRENCt I SAMPI-ES
SMITHERS P.G. - B.C.
DATE DEC/85 ? i l O J E C T 903/10245 D I G I43 4 0 0
ncww NO. 7 NTS 93L/7 SCALE 1: 10000 M E T R E S I O LCCOUPLYI mtponi-
If
42.
Table 2
BASE, PRECIOUS AND PATHFINDER ELEMENTS FROM COMPOSITE TRENCH SAMPLES
(All values in ppm Except For Au in ppb)
Au Ag Mo cu Pb Zn As Sb
541108 23 541109 65 541110 25 541111 80 541112 32 541113 250 541114 36 541115 22
2.1 1 .2 3 .2 11 .4 15 .4 56
25.0 28 1.2 10 .5 4
6 15 11 68 49 932 55 17
33 31 22 25 27 132 95 25
11 7 11 17 20 2 52 4 71 6 403 64 46 7 19 30
2 2 2 2 2
17 6 9
Multielement Anomaly 2 lies 150 metres southwest of the trenched
zone in a region of outwash and swamps. Enriched levels of gold
(80-355 ppb), silver (2-12 ppm), copper (90-188 ppm), lead
(125-760 ppm), zinc (300-650 ppm) and arsenic (40-300 ppm)
outline a west to northwest trending zone 400+ metres long and
200-400 metres wide (Figures 5a & 5b). Angular coarse fragments
were noted at several sample sites suggesting locally thin
overburden. Polymetal Anomaly 2 is believed to be valid,
supported by a northwest linear string of gold anomalies. The
high concentration core lies within a swamp and corresponds to
maximum levels of manganese. Manganese scavenging could be the
cause of metal enrichment or equally likely, the elevated
manganese is in response to local bedrock mineralization, an
association common to several types of deposits.
4 3 .
Multielement enrichment zones 3 , 4 , 7 and 10 have moderate
anomaly scores. Zones 3 , 7 and 10 form northern, southwestern
and southeastern extensions of polymetal Anomaly 1 described
above, zone 4 is a western extension of Anomaly 2. Base and
precious metal concentrations are typically low to moderate.
Enrichment zones 5, 6, 8 , 9 , 11 and 12 are principally enhanced
in the non-ore elements and are of little encouragement.
A strong correlation is noted between multielement anomalies and
the positions of swamps and seepage zones described in the field
notes. Anomalous manganese, calcium and strontium, all
indicators of water saturated ground, exhibit the best
correspondence. Groundwater is believed to be a controlling
factor in and extension zones 3 and 10. Anomaly 3 , is also
probably due to manganese scavenging in a seepage zone. Anomaly
10 is confined to a southwest stream bank and comprises those
elements that migrate as detrital grains in the secondary
environment. This zone is the product of down-stream migration
and comminution of sulphide particles derived from the trenched
area.
0
Followup geochemical exploration will require the completion of
the soil grid to fully outline anomalies of interest, trenching
and trench sampling over anomalous areas to pinpoint sources and
to determine geology. 0
4 4 .
APPENDIX I
GEOCHEMICAL PREPARATION AND ANALYTICAL PROCEDURES
0.5 a t z m CqUi
0.5 grim s m o ! t s ar? a i g e s t t d w i t h hci aqua r t g i a w i t h HF i n prsssrrr? bmos. Ea znd E2 i n the solution a m d e t t n i n e d by arzohitt furnacs AA,
~ h z i ~ i c a ! Ana!ysis f o r Te (Te! lurium) 0.5 a r m smol t s ar2 digesttd w i t h hot aqua rx j i a . The Te e x t r a c t t d i n
4 7 .
APPENDIX I1
LIST OF ANALYTICAL DATA
4 8 .
. . __ ._ . ..
-4- -1 -1 -1 4
. -5 -4 -7
S T 2 E A M S E D I M E N T S
a- 0
-1- -1-
-1- -4-
-I- -4-
-7-
-4-
-9- -1 -1 -1 -* -3 -4 - 7 -4 -4
3-
71 72-?1
76
77-78
7%- sp.c.
S O I L S \
-1 -- 1 -4 -3 d
-1- -1 -1
-1- -- 1 -z -4-
--I --; -I
4--
-LO
-1- -- 1 -- 2 - I
-3 -4 -7
-4
--a -1- --I -1 --I -4
-a -sa -io
-7- -4- -1 - 2 -1 -. --3 .-e --7 --a -4 -4
4 9 .
APPENDIX I11
METHOD OF HISTOGRAM INTERPRETATION
5 0 . . .
i c
t I
Y
51 . - .
