A preliminary palynological assay in collabora- Tasch, P. 1976. Jurassic nonmarine spoor (Transantarctic tion with J . M. Lammons (Trinidad Texaco) of Mountains) and the food web. Journal of Paleontology, 50(4): slides from my Transantarctic Mountains fossil 754-758. Tasch, P., M. V. A. Sastry, S. C. Shah, B. R. J . Rao, C. N. Rao, collection indicated those from Storm Peak (Upper and S. C. Ghosh. 1975. Estheriids of the Indian Gondwanas: Flow) had a small residue after acid digestion with significance for continental fit. In: Gondwana Geology (Camp- a few spores and pollen and sparse floral frag- bell, K. S. W., editor). Australian National University Press, ments; those from Blizzard Heights (Tasch Station Canberra, 443-452. 0) also had a small residue, but more spores and floral fragments than those from Storm Peak; Cara - pace Nunatak (Tasch Station 2) (Tasch, 1974) by contrast contained dense plant and wood frag- ments and numerous better preserved spores and Geologic studies in the southern pollens. Further palynological studies are planned. These data also point to more complexity in the food chain: in this instance, in terms of additional food resources. They also suggest denser wooded EDWARD S. GREW areas in southern Victoria Land some 850 kilo- Department of Geology meters from the Queen Alexandra Range. University of Cal[ornia, Los Angeles The arthropods of the Tasmanian Triassic Los Angeles, California 90024 (Knocklofty Formation chiefly and Ross sandstone) (Tasch, 1975) include fossil conchostracan genera Geologic studies in the southern Prince Charles as follows: Paleolimnadia (two subgenera and six Mountains, including detailed work at five localities species); Cyzicus (Lioestheria) (three species) and (figures 1 and 2), were made while I was U.S. ex- Paleolimnadopsis tasmanii n.sp., as well as a frag- change scientist with the 18th and 19th Soviet Ant- mental malacostracan carapace. The Paleolimnadial arctic Expeditions (SAE) in 1973 and 1974 (Grew, Cyzicus faunal assemblage indicates probable corre- 1975). lation with the Blina shale (Western Australia) and the Mangli beds (India). Eastern Australia could 62E 68 have been the source area for the Tasmanian paleo- limnadids. bgO Field work in collaboration with the Geological G A 4I ° Survey of India (Tasch et al., 1975) systematically bg$ GJ\o 4? , c sampled the conchostracan-bearing beds of the In- 73 rns (3 s/SO c MS bgms u (,.S dian Jurassic Kota Formation among others. An ms S 35 (KY-ST- ms ms SI) important biostratigraphically related collection 30] 01\31a\VA Iq (seven or more successive insect-bearing beds) was 70 .1 5 IF ms found in the Tasch collection during processing. K3 31 ic MS (B) F. M. Carpenter (Harvard Biological Laboratories) )BI st is doing the taxonomy in ajoint study that will cover the biostratigraphy and paleocology of these beds 74S ms 0 F25 as well. Dr. Carpenters first-sight survey of the collection showed that at least six insect orders and 57 AVERAGED TREND possibly more were present: Coleoptera, Blattaria, c ICE FREE AREAS Homoptera, Neuroptera, and Heteroptera. GEOLOGIC CONTACT The Kota Formations nonmarine biota have X LOCATION OF SAMPLE 544 9 100 KM several affinities with Jurassic equivalents in the Transantarctic Mountains. PRECAMBRIAN ROCKS METAMORPHIC INDEX + GRANITE AND PEGMATITE MINERALS This research was supported by National Science WITH MUSCOVITE (S) SILLIMANITE ms METASEDIMENTARY AND Foundation grant DPP 75-05831. METAVOLCANIC ROCKS (KY) KYANITE WITH CONGLOMERATE (c) (ST) STAUROLITE AND IRON FORMATION (IF) (B)) BIOTITE References BASEMENT GNEISSES

Tasch, P. 1974. Food chain relationship in ancient freshwater Figure 1. Geologic sketch map of the southern Prince Charles ecosystems of . Antarctic Journal of the U.S., IX(5): Mountains. This map is based on field work by Dr. Grew in 238. 1973 and 1974, supplemented by information in Ravich and Tasch, P. 1975. Nonmarine arthropoda of the Tasmanian Tri- Kamenev (1972), Soloviev (1972), Tingey and England (1973), assic. Royal Society of Tasmania, Papers and Proceedings, 109: Grikurov and Soloviev (1974), Tingey (1975), and Tingey (per- 97-106. sonal communication, 1975). 240 ANTARCTIC JOURNAL

65x45E bg ) 0 I 2 A2 bg Mafic intrusive rocks 0 __i—tKm 689m 10 83 Quartzite and mica schist

&/0 m s Basement gneisses ICE 156 Km 85 bg k .EDWARDS - PILLAR 56 1725m -73S bg /544 u 894 rn bg 79 A 734((bq

mV(A

Basement rocks at Mounts Stinear and Rymill are gypsum (Mount Maguire only), and calc-silicate dominantly pink or gray quartzo-feldspathic rocks; iron formation; conglomerate. Rocks ex- gneisses containing biotite, hornblende, or garnet; posed in the east-west line of mountains from subordinate are migmatites, mica schist with kya- Mount Stinear to Goodspeed Nunataks appear to nite and staurolite, and amphibolite. Pegmatite is belong to a single stratigraphic sequence. This rela- common. tion is suggested by the predominantly east-west Metamorphic rocks (shown as "ms" on figure 1) structural trends (figure 1; also see Trail and are as follows: biotite gneiss; quartzite; slate, phyl- McLeod, 1969; Tingey, 1975); conglomerates with lite, and mica schist; amphibolitic rocks; marble, clasts largely of quartzite on Mounts Stinear and

December 1976 241 Dummett (east of Mount McCauley) and on Good- I thank D. S. Soloviev, deputy chief of the 18th speed Nunataks ("c" on figure 1), and by the dis- and 19th SAEs, for logistic support and coopera- tinctive sequence of quartzite and amphibolitic tion, and members of the geologic parties of both rocks exposed on Mounts Stinear, Rymill, SAEs for their assistance and for sharing samples McCauley, and Scherger. Rock types in this se- and field data. I thank R. J . Tingey, Australian De- quence (including subordinate mica schist) alter- partment of Natural Resources, for taking me to nate in layers a few meters to over 100 meters in Mount Stinear for a day in 1973 and for keeping me thickness. Cummingtonite is found in amphibolitic informed of the results of Australian work in the rocks. Tingey and England (1973) report a similar Prince Charles Mountains. I thank B. P. Lambert, unit from Mount Menzies. director of the Australian Division of National Metasedimentary rocks exposed on Mount Mapping, for sending me aerial photographs flown Ruker are (1) banded iron formation (150 to 200 by his organization. This research was supported meters thick, bottom not exposed), (2) green slate, by National Science Foundation grant DPP 72- in places with carbonate (1,500 meters), (3) quart- 05797. zite (in part conglomeratic or cross-bedded), slate, and calcareous or ankeritic phyllite alternating in References layers 5 to 50 meters thick (300 to 400 meters), (4) conglomeratic mudstone (10 to 35 meters, "c" Grew, Edward S. 1975. With the Soviets in Antarctica, 1972- on map; figure 2), and (5) green phyllite (top not 1974. Antarctic Journal of the U.S., X(1): 1-8. exposed). The conglomeratic mudstone is brown, Grikurov, G. E., and D. S. Soloviev. 1974. Geologicheskoye stroyeniye gornogo obramleniya lednika Lamberta (po itogam unlayered, and has more matrix than clasts. This polevykh rabot Semnadtsatoy Sovetskoy Antarkticheskoy rock resembles conglomerates from Mount Rubin Ekspeditsii v yanvare-fevrale 1972 g.) [Geologic structure of (Grikurov and Soloviev, 1974, page 27). the mountainous fringe of the (from field Dikes, sills, and tabular bodies of mafic rocks up activities by the Seventeenth Soviet Antarctic Expedition in to 100 meters or more across are abundant on January-February 1972.1 Soviet Antarctic Expedition Information Bulletin, 88: 21-29. Mounts Stinear, Rymill, and Ruker. These mafic Ravich, M. G., and Ye. N. Kamenev. 1972. Kristallicheskiyfunda- rocks in places have discordant and chilled contacts merit Antarktzcheskoy Platformy (Crystalline basement of the Antarc- and generally show evidence of recrystallization tic Platform). Leningrad, Gidrometeoizdat. 658p. during regional metamorphism. Mafic intrusive Soloviev, D. S. 1972. Geological structure of the mountain fringe rocks are widespread in the southern Prince of Lambert Glacier and the Amery Ice Shelf. In: Antarctic Geology and Geophysics (Adie, R. J . , editor). Oslo, Universitets- Charles Mountains (Tingey and England, 1973; forlaget. 573-577. Tingey, 1975). Tingey, R. J . 1975. Cumpton Massif Sheet SS40-4217, 1:250,000, Kyanite, staurolite, sillimanite, and garnet are Geological Series, Preliminar, Edition. Bureau of Mineral Re- sources, Geology and Geophysics, Department of Minerals common aluminum-rich minerals (figure 1). Other and Energy, Australia. Hobart (Australia), Mercury-Walch. aluminum-rich minerals are (1) chloritoid, asso- (Unpublished.) ciated with staurolite and chlorite in quartzite on Tingey, R. J . , and R. N. England. 1973. Geological work in Mount Rymill, (2) andalusite, on Mounts Rymill Antarctica— 1972. Bureau of Mineral Resources, Australia, Rec- and Stinear, and (3) cordierite in schist with quartz, ord 1973/161. 17p. (Unpublished). Trail, D. S., and I. R. McLeod. 1969. Geology of the Lambert kyanite, sillimanite, staurolite, and biotite on Mount Glacier Region. Antarctic Map Folio Series, 12: sheet 12. New McCauley. York, American Geographical Society. High-angle faults on Mount Stinear were active prior to regional metamorphism. Mafic rocks were subsequently emplaced along some of these faults, notably those striking north N. 25°W. to N. 450 W. Weathering stages of a tholeiitic Faults exposed on Mount Ruker (displacements of basalt (dolerite), Queen Maud roughly 40 and 300 meters) and on Mount Maguire (including the gently south-dipping fault between Mountains the map units "ms" and "m y") are post-meta- morphic. A sequence of geologic events in the Prince RAYMOND W. TALKINGTON, HENRI E. GAUDETTE, Charles Mountains consistent with available field and PAUL A. MAYEWSKI data is (a) deposition of sedimentary and volcano- Department of Earth Sciences genic rocks on a deeply eroded gneiss complex; University of New Hampshire (b) emplacement of mafic rocks and high-angle Durham, New Hampshire 03824 faulting; (c) regional metamorphism, folding, and emplacement of granite and pegmatite; and (d) The sparsity of datable material and key horizons faulting. throughout most of the Transantarctic Mountains 242 ANTARCTIC JOURNAL