avoca resources ltd
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AVOCA RESOURCES LTD. “The Rigs are Rattling in South Australia” Sydney Mining Club 4 March 2004. Presentation Outline. Who is Avoca? What got Avoca started in SA? How do you cut back over 16,000km 2 to meaningful drill targets? What has Avoca achieved in SA, and where to in 2004? - PowerPoint PPT PresentationTRANSCRIPT
AVOCA RESOURCES LTDThe Rigs are Rattling in South Australia
Sydney Mining Club4 March 2004
Who is Avoca?What got Avoca started in SA? How do you cut back over 16,000km2 to meaningful drill targets?What has Avoca achieved in SA, and where to in 2004?Summary
Presentation Outline.
Avoca is an aggressive junior explorer.Diamond Drilling1,397 metresRC Drilling6,064 metresAircore Drilling14,205 metresRAB Drilling24,143 metresAuger Drilling5,815 holesSoil Sampling6,444 samplesGravity Surveys4,583 stationsSurface EM Surveys98 line km ..all since listing in April 2002.
..with a quality portfolio in two of Australias highest endowed provinces
Over 10,000km2 in Australias richest copper belt , being the Olympic Copper-Gold Province in SA, and
Almost 8,000km2 in the Eastern Goldfields of WA.mostly in free-carried JVs with Gold Fields, Placer Dome, Harmony, Teck Cominco, Sons of Gwalia and Mines & Resources.
Avoca corporate overview.
ASX CodeAVOIssued Securities64m shares (58m quoted)9.8m unlisted optionsMarket Capitalisation$10m ($3m in cash)Major Shareholders - Gold Fields (11%)(Top 20 own 44%) - Kurana (7%) Staffing MD, EM, SG,TGM, Ac(pt)
Who is Avoca?What got Avoca started in SA? How do you cut back over 16,000km2 to meaningful drill targets?What has Avoca achieved in SA?Where to next for Avocas SA quest?Summary
Presentation Outline.
Recognising an opportunity and moving very fast..Prominent Hill:100m @ 2% Cu announced
..to secure the major position in Australias richest copper belt.Within 24 hours of the Prominent Hill announcement, Avoca became the dominant lease-holder with 16,000km2 in what later became known as Olympic Copper-Gold Province.Applications by fax and a credit card bill of ~$15K..
Who is Avoca?What got Avoca started in SA? How do you cut back over 16,000km2 to meaningful drill targets?What has Avoca achieved in SA and where to in 2004?Summary
Presentation Outline.
.smart geochemistry and geophysics.Northern segment of holding was principally geochemistry driven. -utilising innovative geochemical techniques able to see through the rocks which bury mineralisation.
.smart geochemistry and geophysics.Southern segment of holding was geophysically driven.combination of magnetic and gravity surveys collected both by government agencies and Avoca.
An example of innovative geochemistry. Gravity Magnetics (regional only) 1979 drill hole intersected 14m @ 0.5% Cu at 280m depth. Avoca collected partial leach geochemistry over drill hole to see if technique can see through cover rocks.
Geochemistry over drill hole containing buried mineralisation shows strong surface anomalyDrill hole location
Enzyme_halogens
20903522340.1
19743586741700.8
19431589339484.59
27955292652674.43
20630772339762.12
25091531450709.91
27345398949276.68
42267005225.83
226547703915.66
14619232930950.69
20896916741714.43
493744466505.7
22149137946655.53
27061146157456.39
34314143468675.58
29953303760887.94
6206140312184.61
Br
I
Cl/100
Northing
ppb
Wandearah - Enzyme Leach
Enzyme_conicuzn
11033209
-10-1117
-101232
-103120
312107
301126
193129
2614179
17225205
3235175
-101138
5096190
-10271
-102101
-10293
-10191
426114
Zn
Pb
Cu
Northing
ppb
Wandearah - Enzyme Leach
Enzyme_ox
241011457
4427-100
5930-100
4322-100
4527-100
5225-100
4837-100
1726315
181242496
3820279
5026-100
5037301
3627-100
4826-100
4632-100
5328-100
4132468
As
Rb
SQTi
Northing
ppb
Wandearah - Enzyme
Enzyme_REE
478316731641521227-1523
25-13-1-1-1-1-1-1-1-1-11-1
58172-11-11-1-1-1-11-1
36-14-1-1-1-1-1-1-1-1-11-1
4715-1-1-1-1-1-1-1-1-11-1
35-14-1-1-1-1-1-1-1-1-12-1
611292-12-11-1-1-1-11-1
21458369271613-122-1
4210311469381714-1324
1738523514-14-12-12-1-1
25-13-1-1-1-1-1-1-1-1-11-1
10253133-12-12-11-11-1-1
411171-11-1-1-1-1-1-11-1
37-141-1-1-1-1-1-1-1-1-1-1
49161-11-11-1-1-1-11-1
26-14-1-1-1-1-1-1-1-1-11-1
1534522514-13-12-12-1-1
La
Ce
Pr
Nd
Sm
Eu
Gd
Tb
Dy
Ho
Er
Tm
Yb
Lu
Hf
Northing
ppb
Wandearah Enzyme Leach
Chart1
231
-18
16
-16
-113
-19
-19
8-1
152
44
-17
313
-12
-14
-13
-18
54
Th
U
Wandearah_orient_enzyme_joined
Samp_NoEastingNorthingMGA_ZoneSQLiSQBeSQClCl/100SQScSQTiVMnCoNiCuZnGaGeAsSeBrRbSrYZrNbMoRuPdAgCdInSnSbTeICsBaLaCePrNdSmEuGdTbDyHoErTmYbLuHfTaWReOsPtAuSQHgTlPbBiThU
WD177725006301260MGA53104-202340102340.1-1001457311237010112720911023224-30209010111325485316-1-10.52-0.219-13525351478316731641521227-1523-12-0.1-1-1-0.1-1-133-1231
WD167725006301760MGA53233-20417008041700.8-100-1006218523453117-10-1-1445119743271473835-1114-1-1-0.20.2-0.2-18-15867-126725-13-1-1-1-1-1-1-1-1-11-1-12-0.1-1-1-0.1-1-1-1-1-18
WD157725006302260MGA53306-20394845939484.59-100-10059879458108232-10-1-159621943130830169-1217-1-1-0.20.6-0.2-19-15893-140558172-11-11-1-1-1-11-1-13-0.1-1-1-0.1-1-11-116
WD147725006302760MGA53241-20526744352674.43-100-10059319084864120-101-1436427955221378748-142-1-1-0.20.5-0.2-112-12926-119136-14-1-1-1-1-1-1-1-1-11-1-13-0.1-1-1-0.1-1-13-1-16
WD137725006302860MGA53298-20397621239762.12-100-10061515453313210731-1-1455620630273992249-1106-1-1-0.20.4-0.2-14-17723-1894715-1-1-1-1-1-1-1-1-11-1-12-0.1-1-1-0.1-1-12-1-113
WD127725006302960MGA53631-20507099150709.91-100-10051116503811112630-1-1525825091253321236-1113-1-1-0.20.6-0.2-15-15314-116235-14-1-1-1-1-1-1-1-1-12-1-12-0.1-1-1-0.1-1-11-1-19
WD117725006303060MGA53375-20492766849276.68-100-10059922822811612919-1-1485427345372414376-1160-1-1-0.20.3-0.2-18-13989-1109611292-12-11-1-1-1-11-1-12-0.1-1-10.1-1-13-1-19
WD107725006303160MGA53126-205225835225.83-10031520225279076179264-1173342262612682527-140-1-10.61.6-0.2-17-1700111421458369271613-122-1-12-0.1-1-1-0.1-1-114-18-1
WD187725006303260MGA53162-203915663915.6611724963002918981622051722621832226512483834117568-1-10.50.3-0.224-1477062124210311469381714-1324-13-0.1-1-1-0.1-1-125-1152
WD027725006303360MGA53378-20309506930950.69-10027950818154382175323-13835146192038011825131-1-10.41.4-0.2-110-12329-11251738523514-14-12-12-1-1-12-0.1-1-10.1-1-135-144
WD037725006303460MGA53583-20417144341714.43-100-10022573852576138-10-1-1504520896261074324-1147-1-1-0.20.3-0.2-14-19167-19825-13-1-1-1-1-1-1-1-1-11-1-13-0.1-1-1-0.1-1-11-1-17
WD047725006303560MGA53262-206505706505.7-100301979784561061905095-1504649373722291121259-1-10.21-0.2-11414446131010253133-12-12-11-11-1-1-14-0.1-1-1-0.1-1-16-1313
WD057725006303660MGA53323-20466555346655.53-100-1004731870224071-10-1-1364322149271213062-129-1-1-0.2-0.2-0.2-14-11379-1260411171-11-1-1-1-1-1-11-1-12-0.1-1-1-0.1-1-12-1-12
WD067725006303760MGA53368-20574563957456.39-100-10068516512350101-101-1484127061261340144-126-1-1-0.2-0.2-0.2-17-11461-123637-141-1-1-1-1-1-1-1-1-1-1-12-0.1-1-1-0.1-1-12-1-14
WD077725006304260MGA53299-20686755868675.58-100-1003802228224993-101-1465834314321482153-128-1-1-0.2-0.2-0.2-15-11434-119049161-11-11-1-1-1-11-1-11-0.1-1-1-0.1-1-12-1-13
WD087725006304760MGA53359-20608879460887.94-100-1005681771285891-10-1-1535129953281532533-185-1-1-0.2-0.2-0.2-15-13037-124126-14-1-1-1-1-1-1-1-1-11-1-12-0.1-1-1-0.1-1-11-1-18
WD097725006305260MGA53327-20121846112184.61-10046867413713776114426-1413062063217271727235-1-10.50.7-0.2-15-1140311851534522514-13-12-12-1-1-13-0.1-1-1-0.1-1-16-154
..Avoca then completed extensive geochemical coverage to test Nth block. In excess of 11,000km2 surveyed. One sample collected every 4km. Four areas showed coherent and strongly anomalous copper-gold-REE anomalism on surface at: Myall Hill, Shore Hill, Pernatty and Reordan.Provides for ground rationalisation strategy.
.....over ground like this, sometimes!
The application of geophysics in the search for Cu-Au.Magnetics proves very useful for identifying major faults that control location of zones of rock that may host mineralisation. - eg Pine Point Fault and Port Julia prospect on the Yorke Peninsula
PararaMinePort JuliatargetHillside Mine
The application of geophysics in the search for copper-gold. - Both the Ernest Henry deposit and Avocas Glensea Prospect (east coast of Eyre Peninsula) show similar geophysical features: large magnetic complex against non-magnetic granite.
Who is Avoca?What got Avoca started in SA? How do you cut back over 16,000km2 to meaningful drill targets?What has Avoca achieved in SA and where to in 2004?Summary
Presentation Outline.
Olympic Dam style breccia at Port JuliaPJD1
First Avoca drill hole into 6km long gravity anomaly intersects Olympic Dam-style breccia. *First occurrence on Yorke P.Second hole commenced yesterday, 2.5km from first hole.
PJD1 176.2m: Chalcopyrite in haematitic breccia
PJD1 183.4m: Red haematite breccia clasts withsteely haematite matrix
Drilling PJD1 at Port Julia, June 2003
MOORE GEOPHYSICSNew work at Port Julia involves 3D imagery of Avocas gravity d