URI98l_40

1987/40. Coapletion report: Sub-basalt Drilling Project Hole 2

P. W. Baillie

Abstract

SBDP Hole 2 penetrated approximately 320 m of latest Eocene and Oligocene basalt and interbedded sediments unconformably overlying sedimentary rocks of the Lower Palaeozoic Gordon and Denison Groups.

INTRODUCTION

This report is the second in a series which will be written for each of the holes completed in the Department of Mines Sub-Basalt Drilling Project (SBDP). The hole is located on Racecourse Plain Road (fig. 1) at:-

Easting 391 808.5 m Northing 5 406 007.5 m

Chemical analyses were performed by the Department of Mines Laboratories, Launceston; XRD analyses by R. N. Woolley under the supervision of R. S. Bottrill; palynology by Dr R. Morgan, Maitland, South Australia; down-hole logging by J. V. Wright.

STRATIGRAPHY

The first 90 m of the hole was precollared; a lithological log of the fully-cored section (90-383.1 m) is presented as Appendix 1.

Basalt, often vesicular or brecciated, was encountered between 90 m and 317.5 m. Fresh basalt suitable for dating was not seen, and some degree of deuteric alteration is ubiquitous. Zones of brecciation, as seen at 183 m and 208 m, are probably of hyaloclastic or1g1n and indicate that part of the pile was extruded either in or into water. Some basalt flows (e.g. 134, 188 m) have weathered tops and probably indicate subaerial conditions.

Several thin sediment horizons, usually less than 2 m thick, are present. Lithology is generally carbonaceous silt or clay, although minor sand and gravel is present.

Basement rocks were first encountered at 319.5 m and consist of a sequence of fine-grained, often burrowed, micrite and dolosiltite identical to other West Coast occurrences of the Ordovician Gordon Group.

Siliciclastic sandstone, siltstone, and pebble conglomerate encountered from 374.0 m to 383.1 m (TO) are correlated with the Denison Group; not enough section is present to allow precise correlation.

A very coarse sandstone from 381.4 m (101638) is a poorly-sorted lithic arenite consisting of often well-rounded clasts of metasedimentary or1g1n (metaquartzite, metachert, vein quartz, common quartz, green tourmaline), together with lesser, but significant amounts of siltstone and volcanic quartz in a silicified, ferruginous matrix.

40-1

e HOLE 2

00

~ BASEMENT ROCKS [=:J CAINOZOIC BASALT AND SEDIMENTS

Figure 1. Location of Hole 2

40-2 ,. 5cm .,

GEOPHYSICAL LOGGING

Gamma ray (GR) and caliper tools were run in the upper 318 m of the hole . Figure 2 shows the GR log and demonstrates a precise correlation between high gamma counts and the logged sedimentary horizons . Given the speed of logging (6 m/min), the high peaks probably represent API values of about 120, although precise calibration is not possible .

The principal source of t he gamma rays is probably radioactive .oK, derived from illite (average 6.7 K~ weight) and/or montmorillonite

. (average 1.6 KX weight) in the clay fraction of the sediments (Schlumberger , 1982) .

PALYNOLOGY

Ten samples were submitted for palynological analysis ; all yielded palynomorphs , although some were very lean . A checklist of determined palynomorphs is presented as Appendix 2 .

Samples from the interval 129.0-184 . 0 mare assigned to the lower Proteacidites tuberculatus Zone (Stover and Evans, 1973 ; Stover and Partridge, 1973 ; Partridge , 1976 ).

The samples are totally dominated by Nothofagidites spp. in a relatively low diversity assemblage. The co-occurrence of Beaupreadites verrucosus and Cyatheacidites annulatus indicates assignment to the lower Proteacidites tuberculatus Zone of early Oligocene age . The presence of Periporopollenites vesicus and absence of younger indicators confirm the assignment . Non-marine environments are indicated by the absence of marine indicators , and the presence of the freshwater alga Botryococcus .

Samples from the interval 187 .3- 318 . 9 mare slightly older, and assigned to the upper Nothofagidites asperus Zone . These assemblages are extremely rich in pollen , totally dominated by Nothofagidites spp . and are of low diversity. The presence of Periporopollenites vesicus without younger or older indicators, along with the dominance of Nothofagidites spp . , indicates assignment to the upper N. asperus Zone , of latest Eocene

Figure 2 . Gamma-ray log, SBDP Hole 2 .

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Low GR High

, .. Scm ..,

to earliest Oligocene age. The topmost sample (187.3 m) is very lean and could possibly belong to the overlying zone.

Non-marine environments are indicated by the absence of marine indicators. In the basal sample (318.9 m), common non-marine dinoflagellates (Saeptodinium tasmaniense and ?Trithyrodinium sp.) suggest lacrustrine environments.

WHOLE-ROCK ANALYSES

Analyses of six relatively fresh basalt samples (872167-72) are shown as Table 1; analysis of four representative limestone samples are shown as Table 2.

Figure 3 is shows that affinities,

an alkali-silica diagram (constructed after basalts from this hole have both alkaline

similar to other basalts from the region.

XRD DETERMINATIONS

Brown, 1986) and and tholeiitic

Representative samples of vescicle infillings were collected and mineral determinations made by XRD. Depths of samples and mineral species present are:-

90.0 m

114.4 m

169.3 m

275.4 m

SUMMARY

Chabazite Montmorillonite

Chabazite Heulandite

Chabazite Montmorillonite

Calcite

The hole has shown that a ridge of Denison Group correlate extends in a north-westerly direction from Moory Mount to the Two Hummocks area, although some cross-faulting must be present. The presence of Gordon Group limestone extends the known distribution of that sequence and so increases the area which is prospective for massive sulphide tin deposits or tungsten skarn deposits.

The presence of numerous sedimentary horizons within the basalt pile, and containing a P. tuberculatus Zone micro flora at two horizons, indicates that the schematic geological section proposed by Brown and Forsyth (1984) is too simplistic, and that the Tertiary history is more complex than previously thought.

A summary geological log is:-

o - 187 m Oligocene basalt with minor sediments 187 - 320 m Early Oligocene-late Eocene basalt and sediments 320 - 374 m Ordovician Gordon Group limestone 374 - 383 m Ordovician Denison Group siliciclastics

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7

6

5

4

'" "" .jJ 0 I ~ (J1

0 N 3

:.: + 0 N

'" Z 2

1

o 35

Scm

STRONGLY ALKALINE BASALT

;L"'_' _____ -;I I

,~-----~fll Olivine nephelinite ---field (Ringarooma)

...

40

MILDLY ALKALINE BASALT

45

Alkali olivine basalt (Ringarooma)

\

[j: •

•

50

Si02 (wt '1;)

O'ivine tholeiite field (Waratah)

THOLEIITES

55

Figure 3. Alkali-silica diagram (after Brown, 1986), Tertiary basalt SBDP Hole 2

REFERENCES

BROWN, A. V. 1986. Geology of the Dundas - Mt Lindsay - Mt Youngbuck region. Bull. geol. Surv. Tasm. 62.

BROWN, A. V.; FORSYTH, S. M. 1984. Chemistry of Tertiary basalt and palynology of interbedded sediments from B.H.P. drill holes, E.L. 33/79. unpubl. Rep. Dep. Mines Tasm. 1984/39.

HARRIS, W. K. 1973. Tertiary non-marine dinoflagellate cyst assemblages from Australia. Spec. Publ. geol. Soc. Aust. 4:159-166.

PARTRIDGE, A. D. 1976. The geological expression of eustasy in the early Tertiary of the Gippsland Basin. APE A J. 16:73-79.

STOVER, L. E.; EVANS, P. R. 1973. Upper Cretaceous-Eocene spore-pollen zonation, offshore Gippsland Basin, Australia. Spec. Publ. geol. Soc. Aust. 4:55-72.

STOVER, L. E.; PARTRIDGE, A. D. 1973. and pollen from the Gippsland Basin, Proc. R. Soc. Vict. 85:237-286.

Tertiary and Late Cretaceous spores southeastern Australia.

SCHLUMBERGER LTD. 1982. Natural Gamma Ray Spectrometry: essentials of N.G.S. interpretation. Schlumberger Technical Document. M 081025.

[15 September 1987)

40-6

Table 1. CHEHICAL ANALYSES OF BASALTS; SBDP Hole 2

Analysis No. 872167 872168 872169 872170 872171 872172 Field No. 101628 101629 101630 101631 101632 101633 Depth (m) 101.5 145.0 190.0 238.0 282.0 293.0

Oxides (Xl

SiO:. 50.54 51.59 48.62 46.63 48.75 49.27 Ti02 1.60 1.52 1. 79 2.18 2.05 2.18 Alz{)" 14.13 14.34 14.24 12.86 15.18 15.73 Fez{)" 5.12 5.13 3.46 2.31 3.36 3.35 FeO 6.49 5.72 7.01 9.90 6.68 6.92 MnO 0.14 0.16 0.15 0.17 0.15 0.15 MgO 6.77 6.61 7.05 9.83 6.46 5.51 CaO 9.30 8.69 9.17 8.79 7.76 7.72 Naz{) 2.71 3.01 2.83 2.84 2.75 2.82 K:zO 0.44 0.79 0.95 1.21 1.52 1.69 Pz{) .. 0.21 0.23 0.34 0.47 0.38 0.40 H2 O+ 1. 99 1.86 2.78 2.29 2.50 2.77 CO2 0.27 0.26 0.92 0.16 0.54 0.38 Total S '0.05 '0.05 '0.05 ,0.05 0.11 ,0.05

Trace elements (g/t)

Ag 5 5 ,5 8 ,5 7 As 13 <10 11 ,10 16 19 Sa <9 52 110 77 1300 310 Si 5 7 6 <5 ,5 ,5 Ce 41 52 60 78 74 76 Co 50 45 47 56 35 34 Cr 300 280 230 290 50 69 Cu 60 54 57 73 40 38 Ga 19 18 20 21 22 22 La <6 7 15 15 12 19 Mo 22 15 17 11 10 13 Nb 9 15 26 32 33 29 Nd 14 10 20 17 19 20 Ni 175 140 160 230 44 54 Pb 10 6 4 7 4 <4 Rb 7 18 18 19 38 35 Sc 21 20 19 20 18 15 Sn 54 11 7 4 4 6 Sr 240 280 390 640 610 370 Ta <9 <9 <9 9 <9 <9 Th ,4 <4 4 ,4 ,4 <4 U ,5 <5 <5 ,5 ,5 5 V 155 145 170 195 195 175 W 380 260 155 110 210 270 Y 21 17 20 20 23 23 Zn 125 120 125 135 120 120 Zr 99 100 115 185 160 155

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Table 2. CHEHICAL ANALYSES OF LlHESTONES; SBDP Hole 2

Analysis No. 872222 872223 872224 872225 Field No. 101634 101635 101636 101637 Depth (m) 329.6 343.9 361.0 367.8

Oxides (X)

SiO,. 10.27 12.76 5.34 2.64 TiO,. 0.21 0.11 0.12 0.10 AbO" 4.54 1. 97 2.14 1.20 Fe:zO" 0.44 0.07 0.19 0.25 FeO 0.76 0.33 0.30 0.80 MnO 0.04 0.01 0.02 0.08 MgO 6.30 2.14 1.43 3.83 CaO 38.96 44.88 49.48 47.73 Na:zO 0.02 <0.01 0.01 0.20 KzO 0.82 0.36 0.43 0.26 P:zO .. 0.10 0.09 0.07 0.07 Total S 0.54 0.17 0.31 0.43 L.O.1. 37.66 37.40 40.12 42.01

Trace elements (glt)

Ag 6 8 13 13 As <10 10 11 19 Ba 43 20 18 18 Bi 5 8 5 6 Ce 18 7 10 10 Co <4 <4 <4 6 Cr 23 18 13 26 Cu 11 <3 3 9 Ca 4 <3 <3 <3 La 28 <6 <6 <6 No 2 4 3 2 Nb 2 2 <2 <2 Nd <9 <9 <9 <9 Ni 6 3 6 16 Pb 16 9 11 27 Rb 37 17 22 17 Sc 16 21 20 24 Sn <4 <4 <4 <4 Sr 240 270 270 240 Ta <9 <9 <9 <9 Th 6 <4 <4 5 U 5 <5 <5 <5 V 20 4 9 16 W 83 115 70 40 Y 9 4 4 6 Zn 24 29 25 155 Zr 27 18 11 18

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APPENDIX 1

Geological log of drill hole BDP-2

40-9

", o I .... o

TASMANIAOEPARTMENT OF MINES GEOLOGICAL SURVEY

~ ""- Depth Graphic Sample No. e! ~l'l Iml

Depth Iml <'3 8- Log Prep'"

f- 90 · 0'" •• ~ 90 .0 XRD I-- ·00. ~

· I-- : 04tO_··

I-- 000 o ••

t--100 • D .. _ co .... 101.5 Anal, .. ., ...... ., TS o· .........

t-- ............. . oooooec

I-- :

I-- . 110 : 0 .. 0:)00. Q ""0 "'", "'0 o(

: I--

I-- e .. ··~~ ........ 114.4 XRD

I-- r 120 - 0.'._--I-- ·

I--

I-- 129.0 Pa1y r 130 - -:==----..:-I-- 50 ':,. ... _---: --· 20 I-- .~-~.-.:

I-- : :::s:::.: · f- 140 ;

...... " I--

I-- : ·

I-- : 145.0 Anal, ._0···.· _ , .... TS I-- · f- 150 : I::~~'.'

I-- : ,,. ,.:;;: ·

I-- ·

I--!,:~~:l:" f- 160 -

I-- · ....... 0 ..

I--

t--_ 0· .... • ....

000000'·

I-- _170 _ ;::::~. _'.Po':. 169.3 XRD

DIAMOND DRILL CORE GEOLOGILAL RECORD HOLE No. BDP-2

REF. No. SHEET No. 1 of 4

DESCRIPTION

I Dark coloured vesicular to massive basalt; vesicular zones indicated on graphic log

Brown carbonaceous siltstone with (washed out) basal siliceous ~rave1

Basalt as above

Khaki weathered tOD of flow 133.8 - 135.0 m

I..: 5cm -I

.. o I .... ....

- --.... ........ .-. .... --------- =====~----------------~--~-=-~-.~------------,

TASMANIA DEPARTMENT OF MINES HOLE No. BDP-2 DIAMOND DRILL CORE GEOLOGICAL RECORD

GEDLDGlrAL SURVEY REF. No. SHEET No. 2 of 4

:E <1' Depth Graphic Sample No.

~ !;1l Depth Iml DESD1IPTION u- Iml log Prep'n

f- 170 -00 ~O ••• - .00.00.-. .··.otP . ..

- ._ ...... ·• .. 0.0 •• 0 _0 ....... ........

-- ... 180 _

- AAb.bb,. .4 Brecciated base of flow 182.3 - 183.5 m - -=::-~--=~

- -::.~ =3-"-: 184.0 Paly Brown carbonaceous siltstone and claystone -f- 190 ': 187.3 Paly Grey weathered zone at top of basalt 187.6 - 187.9 m -

i90.0 Anal - TS 197.0 -198,0 m Brown {,~T'h(m~C-"nll< siltstone - ---- --

f- 200 -~~. "-<lA 197.6 Paly Rrec:c:iat:eel anel ruhhlv ton of next flow - "O·o·~::-a

-- AAAA.AA

.6.4.646- Agglomerate or brecciated basalt - 6AAA f- 210 : 0 •••••

-- f- : f--- 218.4 - 223.2 m Brown carbonaceous siltstone and cla,ystone with minor 1:iJW:t.er ~red

f- 220 ; - --- - --- - -- 220.8 Paly very fine-grained sandstone f--- - - --- -- - -

10 -- --f-- - - 223.2 - 223.7 m Thin massive basalt ?flow

- -- -

f-- : =::.=.: 229.5 Paly 223.7 - 229.9 m Brown claystone as above - - --- - - -

f-- f- 230 - -::.---=-:::--

f-- - Basal t as above f--

- 238.0 Anal f-- f- 240 - TS f--

f-f--

Scm - f- I .. -I f--

f- 250 - I-

- --·, ... , '" .. TASMANIA DEPARTMENT OF MINES HOLE No. BDP-2

GEOLOGICAL SURVEY DIAMOND DRILL CORE GEOLOGICAL RECORD 3 4 REF. No. SHEET No. of

:E ;I'. Depth Graphic Sample No. ~ ~~ Iml

Depth Iml DESCRIPTION <9 8.2 Log Pn!p'n

t-- t- 250 :

t--

t-- .

t-- ~ 260 : t-- ~ : 268.6 Paly 266.6 - 269 . 0 m Dark brown claystone with lesser, lighter coloured, ·carbonaceous r . t-- poorly-sorted sandstone ---t-- -.

t- 270 -t--

t-- 275.4 XRD 10 277.2 - 279.3 m Dominantly grey/brown, moderately well-sorted fine to very fine-grained

t-- :. -:.: :'.:~, i:":::. 279.0 Paly sandstone t- 280 " t--::J 282.0 Anal I

~ ~ t-- TS I" ~ t-- ~ I-- t- 290 •

t-- ~ 293.0 Anal TS

t--

t-- 40 ~ 300 • .. ~ ~.o-t"~ Dominantly brown claystone as above with upper horizon of sandy siliceous gravel

t--I-;:-=-=-

~ - - --- - - 303.5 Paly 304.0 - 317.5 m Weathered and altered (swelling clays) basalt

t--

t--30 t- 310 •

t--

t--

t--10 r -- - -- 318.9 Paly

~ 320 - -- - 317.5 - 319.5 Brown claystone as above t--I I

319.5 - 324.0 White, weathered limestone t--!"1-r1·

324.0 - 373.0 Gordon Limestone Scm t-- I- -I . :i \ I I-- r- 330 - \ I 329.6 Anal

.. o , >-' W

TASMANIA DEPARTMENT OF MINES GEOLOGICAL SURVEY

!E ;F. Depth Graphic Sample No.

~ ~t! Depth Iml 8.2 Iml Log Prep'n

I- 330 \ \

f-- ! \ I .1 I

I gS ...1-1\ f-- l- II

20 ~ 340 ...1...l '1

f-- 11 10 l- II J I 343.9 Anal I-- I )

f-- I \ \ 70 ~ 350

I I I-- -'

10 l- I f--

40 l-L >-- IJ I

'-- 50 , f- 360 361.0 Anal - \ I

30 l- I I - l-L I

f-- l- I L 367.8 Anal

f-- f- 370 I I 20

~ f-- - ........ : .. : 40 f-- ...

. ;c:. . 10 ..

f- 380 - . " ' . f-- . .. 381.4 TS f--

. . -;...,Q .. ,O . ~

.

f- 390 -

: - -

: I- -

HDLE No. BPD-2 DIAMOND DRILL CORE GEOLOGICAL RECORD

REF. No. SHEET No. 4 of 4

DESD1IPTION

Dominantlv fine-I!rained often burrowed micriti~ nf mlln ann nn'nmiTi~ <iH Occasionally laminated • Abundant stylolites.

374.0 - 376.9 m Green to brown coloured siltstone and verv fine s andstone

376.9 - 381.0 m Red coloured sandstone, with few pebbles

381.0 - 383.1 m Red pebble conglomerate

- I

- 1--Scm -I

c-

fI" ,

v~(At\l~JNf'.J""'''''''''''''''' II II ·oJ -o:mlll •• n X- 0 -i ~O~o-l\Jl\J~OlOlI\J II II 1: r fTl Olvl~Ol~O~~.j>~ II II II II II II II II II fTl r U1 D . . · .. . . II II n n ~ Ui 0 0- Ui Ol 0- vi C- C- II II ZIiJ <;JJ"l1nX- A '" ;l) Ul II I o ~ 1O~100cr r fTl H

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II m ill m Z Ul II :J cr Ul .,,-u II 1 I );SAEPTOOINIUH TASt1AN I ENSE ~ r+ .... ;I) 3: tl1 II II -< :t> Tn -- II 211 );TRITHYROOINIUH SP.;t; "1) -l t1 II II "1) 1: ;l) .-- II 311 OACRYCARPITES AUSTRALIENSIS , H Tn 11 II 10 n UI

411 OIL~YNITES GR,HWLATUS U1 II 10 X-

5 II OIL~YNITES TUBERCULATUS :l to t II r+ C 611 GLEICHENIIOITES CIRC'INIOITES Z ~J II '" .---- II 711 HALORAGACIOITES HARRISII X-

II II Z .-- . II B II ILEXPOLLENITES SP. n II II Tn .- II 911 ISCHYOSPORITES GREHIUS :»

II to -c 1011 LYGISTEPOLLENITES FLORINII -< -c

m II :z .--. " 1 1 HALVACIPOLLIS SUBTILIS r 0 II a ..... .. . ...:..,)-- . ·v (_ . -vv II 12 HATONISPORITES ORNAMENTALI5 :E ><

0 II Tn N I .- .- II 13 NOTHOFAGUS ASPERUS to ... II -l .. II 14 NOTHOFAGUS BRACHYSPINULOSUS

II X-II 15 toKlTHOFAGUS OEHINUTUS "1) II "1) - II 16 NOTHOFAGUS EHARCIOUS / HETERUS Tn II X-II 17 NOTHOFAGUS FALCATUS ;JJ II X-

• liii"'IIII' IIllIIl II 18 NOTHOFAGUS FLEMINGII Z II n --. • ---mm:J • -«DID • II 19 NOTHOFAGUS VANSTEENISII Tn II II 20 PERIPOROPOLLENITES OEHARCATUS II II 21 PERIPOROPOLLENITES POLYORATUS II .--- II 22 PERIPOROPOLLENITES VESICUS II

• ___ iiliil"""""H!' IIIIII>-- II 23 PHYLLOCLAOIOITES HA~SONII II

til . --- . --- II 24 POOOSPORITES HICROSACCATUS

~ II

• IIIIII>-- • II 25 PROTEACIOITES SPP. II II 26 STERE I SPOR lTES AtH I QU I SPOR I TES II . -- . - . II 27 TRICOLPITES SPP •

II 2811 VERRUCATOSPORITES ATTEt.ATUS

II • ---<lII!D-- II 2911 VERRUCATOSPORITES SP.

II II .--, " 3011 VERRUCOSISPORITES KOPUKUENSIS II

~ 31 II CLAVIFERA TRIPLEX II

• -- • -<DIIIJ • - II 3211 CYATHIOITES SPP . ~ II II .-- " 3311 OICTYOPHYLLIOITES SPP.

vt ~ ~ ~ ~ ~ ~ ~ _ ~ II II "'O'-JIl-NN-oCDCDtv II II CD Vl -0 CD -0 0 '-J '-J -I> -0 II II • • . . . • . . • II II -0 ~ 0 Il- ~ CD Il- Vl 0 0 II II

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II II II II II II II II II 34 I ERICIPITES SCABRATUS II

· ·V~- II 35 RUGULATISPORITES HALLATUS II

. - .-- II 36 RUGULATISPORITES SPP • II .- .-- II 37 VERRUCOSISPORITES SPP. II II 3B VERRUCOSISPORITES "BUBBLY" II II 39 BEAUPREAOITES VERRUCOSUS II

PROTEACIDITES II 40 OBSCURUS II . --- . II 41 RETITRILETES II . _- .-- II 42 VERRUCOSISPDRITES CF • CRISTATUS II II 43 HICROCACHRYIDITES ANTARCTICUS II II 44 PROTEAC I 0 ITES INCURVATUS II II 45 TRICOLPITES WAIPARAENSIS CF. .. II

0 .-- II 46 8EAUPREAIDITES TRIGONALI S I II >-'

lJ> • liliiii-- II 4711 LAEVIGATOSPORITES II II II 48 I PROTEACIDITES ANNULAR IS II

• liliiii-- • II 49 AGLAOREIOIA QUALUHIS II .-- II 50 ;;BOTRYOCOCCUS;; II ._- II 51 CYATHEACIDITES ANNULATUS II

52 PEROHONOLITES DENSUS

S3 RUGULATISPORITES HALLATUS CF.

54 TRIPOROPOLLENITES CHNOSUS

55 HICROFOVEOSPORITES

II 56 HILFORDIA HOHEOPUNCTATUS

(II

~

~ <l"

i 1

SPECIES LOCATION INDEX Index numbers are the columns in which species appear.

INDE X NUMBER SPECIES

5 0 *BOTRYOCOCCUS* 1 *SAEPTODINIUM TASMANIENSE* 2 *TRITHYRODINIUM SP.*

49 AGLAOREIDIA QUALUMIS 3 9 BEAUPREADITES VERRUCOSUS 46 BEAUPREAIDITES TRIGONALIS 31 CLAVIFERA TRIPLEX 51 CYATHEACIDITES ANNULATUS 32 CYATHIDITES SPP.

3 DACRVCARPITES AUSTRALIENSIS 33 DICTYOPHYLLIDITES SPP.

4 DILWYNITES GRANULATUS 5 DILWVNITES TUBERCULATUS

3 4 ERICIPITES SCABRATUS 6 GLEICHENIIDITES CIRCINIDITES 7 HALORAGACIDITES HARRISII 8 ILEXPOLLENITES SP. 9 ISCHYOSPORITES GREMIUS

47 LAEVIGATOSPORITES 10 LYGISTEPOLLENITES FLORINII 11 MALVACIPOLLIS SUBTILIS 12 MATONISPORITES ORNAMENTAL IS 43 MICROCACHRYIDITES ANTARCTICUS 55 MICROFOVEOSPORITES 56 MILFORDIA HOMEOPUNCTATUS 13 NOTHOFAGUS ASPERUS 14 NOTHOFAGUS BRACHYSPINULOSUS 15 NOTHOFAGUS DEMINUTUS 16 NOTHOFAGUS EMARCIDUS/ HETERUS 17 NOTHOFAGUS FALCATUS 18 NOTHOFAGUS FLEMINGII 19 NOTHOFAGUS VANSTEENISII 20 PERIPOROPOLLENITES DEMARCATUS 21 PERIPOROPOLLENITES POLYORATUS 22 PERIPOROPOLLENITES VESICUS 52 PEROMONOLITES DENSUS 23 PHYLLOCLADIDITES MAWSONIl 24 PODOSPORITES MICROSACCATUS 48 PROTEACIDITES ANNULARIS 44 PROTEACIDITES INCURVATUS 40 PROTEACIDITES OBSCURUS 25 PROTEACIDITES SPP. 41 RETITRILETES 35 RUGULATISPORITES MALLATUS 53 RUGULATISPORITES MALL AT US CF. 36 RUGULATISPORITES SPP. 26 STEREISPORITES ANTIQUISPORITES 27 TRICOLPITES SPP . 45 TRICOLPITES WAIPARAENSIS CF. 54 TRIPOROPOLLENITES CHNOSUS 28 VERRUCATOSPORITES ATTENATUS 29 VERRUCATOSPORITES SP. 38 VERRUCOS I SPOR !TES "BUBBL V" 42 VERRUCOSISPORITES CF. CRISTATUS 30 VERRUCOSISPORITES KOPUKUENSIS 37 VERRUCOSISPORITES SPP.

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