DOCSLIB.ORG

Mawson Tillite, Victoria Land, East Antarctica: Reinvestigation Continued

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Mawson Tillite, Victoria Land, East Antarctica: Reinvestigation Continued SCOTT GLACIER Everett, K. R., and R. E. Behling. 1970. Chemical and - physical characteristics of Meserve Glacier morainal soils, Wright Valley, Antarctica: an index of relative age? In: International Symposium on Antarctic Glaciological Ex- ploration, Hanover, New Hampshire, 3-7 September 1968. International Association of Scientific Hydrology. Publica- tion, 86. p. 459-460. Doumani, G. A., and V. H. Minshew. 1965. General geology 20O- AMUND5EN GLACIER (A-A) of the Mount Weaver area, Queen Maud Mountains, DEVILS GLACIER lB-B) Antarctica. Antarctic Research Series, 6: 127-139. 3000. Hollin, J. T. 1962. On the glacial history of Antarctica. Journal of Glaciology, 4(32): 173-195. Mercer, J. H. In press. Some observations on the glacial geology of the Beardmore Glacier area. In: R. J . Adie ma (ed.), 1400 6p Antarctic Geology and Geophysics. Oslo, Uni- •. ... versitetsforlaget. 1000 - - Nichols, R. L. 1961. Multiple glaciation in the Wright 600 Valley, McMurdo Sound, Antarctica. Tenth Pacific Science 200 tSHLETON GLACIER A Congress. Abstracts of Papers Presented, p. 317. I Oliver, R. L. 1964. Geologic observations at Plunket Point, Beardmore Glacier. In: R. J Adie (ed.) 3000 ro FL . Antarctic Geology. New York, John Wiley & Sons, Inc. p. 248-258. Wade, F. A., V. L. Yeats, J. R. Everett, D. W. Greenlee, K. E. LaPrade, and J. L. Shenk. 1965. Geology of the ma Central Queen Maud Range, Transantarctic Mountains, Antarctica. Texas Tech University. Antarctic Series, 65-1. 54 p. Indicates minimum level 600- Data point ... High moraine surface Middle moraine surface - Present ice surface Figure 3. Profiles of middle and high moraines. Mawson Tillite, Victoria Land, present ice, flowed in the same direction the present East Antarctica: reinvestigation ice does. The broad expanse of depositional sites (Scott Glacier to the Coombs Hills) and the fabrics continued imply that the Sirius Formation was deposited by a continental-scale ice sheet. Moreover, to deposit a HAROLD W. BORNS, JR. and BRADFORD A. HALL basal till the ice related to the Sirius Formation must Department of Geological Sciences have been not only of a continental scale but thick University of Maine at Orono enough to permit basal melting. Further investigation of samples collected will help HAROLD W. BALL elucidate the environment of deposition of the Sirius Division of Paleontology Formation. British Museum This work was supported by National Science Foun- dation grant GV-26652. H. KELLEY BROOKS I acknowledge the aid of the helicopter crews of Department of Geology VXE-6 in transporting a 400-kilogram cavernously University of Florida weathered granite boulder from Bull Pass (adjacent to Wright Valley) to McMurdo Station. The boulder This program was a continuation of the program was shipped to Bostons Museum of Science to be put to reinvestigate the origin and age of the Mawson on display as part of an exhibit of interesting rocks Tillite(?) begun in the 1968-1969 field season by from around the world. H. W. Borns, Jr., and B. A. Hall. Our primary objective in the 1971-1972 season was to revisit a Jurassic pond deposit at Carapace Nunatak References in the Transantarctic Mountains of south Victoria Land in a continuing effort to describe the fauna and Barrett, P. J . 1969. Stratigraphy and petrology of the flora and ascertain the paleoenvironment and age of mainly fluviatile Permian and Triassic Beacon rocks, Beardmore Glacier area, Antarctica. Institute of Polar this important Southern Hemisphere fossil locality Studies. Report, 34. 132 p. (Borns and Hall, 1969; Hall and Borns, 1970). Elliot, D. H., and D. A. Coates. 1971. Geological investi- The party was placed on Carapace Nunatak by gations in the Queen Maud Mountains. Antarctic Journal helicopters in late December and during the 10 days of the U.S., VI(4): 114-118. that followed quarried approximately 700 kilograms of 106 ANTARCTIC JOURNAL , -- k .t N. & I A. Figure 1. Isepod, Carapace Nunatak pond deposit. Figure 2. Insect and syncarid fragment, Carapace Nunatak pond Length: approximately 2.5 centimeters. deposit. Length of insect: approximately 1 .5 centimeters. fossiliferous rock for shipment to the United States References for study. Ballance, P. F., and W. A. Watters. 1971. The Mawson Fossils known to be represented are conchostracans, Diamictite and the Carapace Sandstone, formations of the notostrachans, isopods (fig. 1), ostracods, and syn- Ferrar Group at Allan Hills and Carapace Nunatak, Vic- toria Land, Antarctica. New Zealand Journal of Geology carids (all fresh-water crustaceans), and these are as- and Geophysics, 14: 512-527. sociated with insects (fig. 2) and plants. The con- Borns, H. W., and B. A. Hall. 1969. Mawson "Tillite" in chostracans and notostrachans are commonly asso- Antarctica: preliminary report of a volcanic deposit of ciated with temporary pools and ponds, but the varied Jurassic age. Science, 166 (3907): 870-872. Hall, B. A., and H. W. Borns, Jr. 1970. Jurassic geology of nature of many of the fossiliferous horizons in the the Allan-Battlements-Carapace Nunataks area, Victoria Carapace deposit, their lateral extent, and the pres- Land (abs.). SCAR/IUGS Symposium, Oslo, Norway. ence of the isopods and syncarids suggest the shallow Townrow, J. A. 1967. Fossil plants from Allan and Carapace margins of a more permanent lake. As yet no verte- Nunataks, and from the upper Mill and Shackleton Gla- brates have been found in association. ciers, Antarctica. New Zealand Journal of Geology and Geophysics, 10(2): 456-473. A particularly interesting aspect of part of the fauna is that it appears to be anachronistic. On the basis of comparison with coeval volcanic beds, the pond deposits of Carapace Nunatak have been as- Basement geology of Mount Insel signed a mean absolute age of 156 million years area, Victoria Valley, Antarctica (Ballance and Watters, 1971, p. 521) near the base of the Upper Jurassic. This broadly accords with Townrows (1967) assignation of a Middle Jurassic A. G. SUBLETT, W. C. HAUCK, R. S. HOUSTON, age for the plants. However, the conchostracans and and S. B. SMITHSON notostrachans appear to have very close affinities with Department of Geology forms occurring together in the Upper Triassic Cave University of Wyoming Sandstone of South Africa, and the isopods with a species from the Upper Trias of Australia. Apart from During the 1971-1972 field season, we mapped base- the apparent age differences, the geographical distri- ment rocks on the east flank of Mount Insel in Vic- bution of these forms also is noteworthy. toria Valley, where complex structural relationships With close helicopter support we visited sections are well exposed. of Battlements Nunatak and Allan and Coombs Hills, Metamorphic basement rocks mapped are caic- which were not visited in the 1968-1969 season. silicate schist and gneiss, marble, and quartzo-felds- Additional volcanics for radiometric dating were pathic gneiss. Mineral assemblages containing garnet collected, and the ubiquitous presence of stratification in the quartzo-feldspathic gneiss; sillimanite coexisting within the Mawson volcanic breccia was documented. with K-feldspar, and lack of muscovite in pelitic schist This work was carried out under National Science place these rocks in the upper-amphibolite metamor- Foundation grant GA-1148. phic facies. July-August 1972 107.
Load more

Recommended publications
  • Ice Caves of Terra Nova Bay (Victoria Land, Antarctica)
    SPECIALE GLACIER CAVES NIMBUS 23-24 Ice Caves of Terra Nova Bay (Victoria Land, Antarctica) Mirco Meneghel - Dipartimento di Geografia, University of Padova, Italy Giovanni Badino - Dipartimento di Fisica Generale, University of Torino, Italy Associazione La Venta Abstract Baia Terra Nova, sulla costa occi- wider Terra Nova Bay, on the we- In the 2000/2001 expedition of dentale del Mare di Ross. Sono stern coast of the Ross Sea, at 74° the Italian Programme of Resear- state esplorate tre grotte nella 41' 42" S lat. and 164° 07' 23" E ch in Antarctica (PNRA) an inve- fronte dei ghiacciai al contatto col long. The Transantarctic Mts, stigation on the presence of ca- mare e un'altra sulla sommità del whose relief is often higher than ves in ice has been carried out monte Melbourne, un cono vulca- 3000 m, fringe the coast. South near the Italian Station of Terra nico di 2700 metri di altezza. Le of the Base the mountain chaine Nova Bay, on the western coast of grotte sulla costa sono crepacci is crossed by outlet glaciers that the Ross Sea (Northern Victoria ampliati dalla sublimazione del drain the ice of the inlandsis. On Land). Three caves have been ex- ghiaccio a causa della differenza the north huge valley glaciers plored at the snout of glaciers di temperatura fra il ghiaccio e flow from the mountains to the reaching the sea and an other l'acqua marina. La grotta subgla- sea. The Italian Base is placed one on the summit of Mt Mel- ciale sul monte Melbourne è ge- between the region of the Dry bourne, a volcanic cone 2700 m nerata dal calore delle rocce vul- Valleys to the south, where broad 1 - Below - high.
    [Show full text]
  • Federal Register/Vol. 84, No. 78/Tuesday, April 23, 2019/Rules
    Federal Register / Vol. 84, No. 78 / Tuesday, April 23, 2019 / Rules and Regulations 16791 U.S.C. 3501 et seq., nor does it require Agricultural commodities, Pesticides SUPPLEMENTARY INFORMATION: The any special considerations under and pests, Reporting and recordkeeping Antarctic Conservation Act of 1978, as Executive Order 12898, entitled requirements. amended (‘‘ACA’’) (16 U.S.C. 2401, et ‘‘Federal Actions to Address Dated: April 12, 2019. seq.) implements the Protocol on Environmental Justice in Minority Environmental Protection to the Richard P. Keigwin, Jr., Populations and Low-Income Antarctic Treaty (‘‘the Protocol’’). Populations’’ (59 FR 7629, February 16, Director, Office of Pesticide Programs. Annex V contains provisions for the 1994). Therefore, 40 CFR chapter I is protection of specially designated areas Since tolerances and exemptions that amended as follows: specially managed areas and historic are established on the basis of a petition sites and monuments. Section 2405 of under FFDCA section 408(d), such as PART 180—[AMENDED] title 16 of the ACA directs the Director the tolerance exemption in this action, of the National Science Foundation to ■ do not require the issuance of a 1. The authority citation for part 180 issue such regulations as are necessary proposed rule, the requirements of the continues to read as follows: and appropriate to implement Annex V Regulatory Flexibility Act (5 U.S.C. 601 Authority: 21 U.S.C. 321(q), 346a and 371. to the Protocol. et seq.) do not apply. ■ 2. Add § 180.1365 to subpart D to read The Antarctic Treaty Parties, which This action directly regulates growers, as follows: includes the United States, periodically food processors, food handlers, and food adopt measures to establish, consolidate retailers, not States or tribes.
    [Show full text]
  • Fault Kinematic Studies in the Transantarctic Mountains, Southern Victoria Land TERRY J
    studies. Together these data will be used to develop a model to plate tectonic modeling. In R.A. Hodgson, S.P. Gay, Jr., and J.Y. of the structural architecture and motion history associated Benjamins (Eds.), Proceedings of the First International Conference with the Transantarctic Mountains in southern Victoria Land. on the New Basement Tectonics (Publication number 5). Utah Geo- logical Association. We thank Jane Ferrigno for cooperation and advice on Lucchita, B.K., J. Bowell, K.L. Edwards, E.M. Eliason, and H.M. Fergu- image selection; John Snowden, David Cunningham, and son. 1987. Multispectral Landsat images of Antarctica (U.S. Geo- Tracy Douglass at the Ohio State University Center for Map- logical Survey bulletin 1696). Washington, D.C.: U.S. Government ping for help with computer processing; and Carolyn Merry, Printing Office. Gary Murdock, and Ralph von Frese for helpful discussions Wilson, T.J. 1992. Mesozoic and Cenozoic kinematic evolution of the Transantarctic Mountains. In Y. Yoshida, K. Kaminuma, and K. concerning image analysis. This research was supported by Shiraishi (Eds.), Recent progress in antarctic earth science. Tokyo: National Science Foundation grant OPP 90-18055 and by the Terra Scientific. Byrd Polar Research Center of Ohio State University. Wilson, T.J. 1993. Jurassic faulting and magmatism in the Transantarctic Mountains: Implication for Gondwana breakup. In R.H. Findlay, M.R. Banks, R. Unrug, and J. Veevers (Eds.), Gond- References wana 8—Assembly, evolution, and dispersal. Rotterdam: A.A. Balkema. Wilson, T.J., P. Braddock, R.J. Janosy, and R.J. Elliot. 1993. Fault kine- Isachsen, Y.W. 1974.
    [Show full text]
  • Terra Nova Bay, Ross Sea
    MEASURE 14 - ANNEX Management Plan for Antarctic Specially Protected Area No 161 TERRA NOVA BAY, ROSS SEA 1. Description values to be protected A coastal marine area encompassing 29.4km2 between Adélie Cove and Tethys Bay, Terra Nova Bay, is proposed as an Antarctic Specially Protected Area (ASPA) by Italy on the grounds that it is an important littoral area for well-established and long-term scientific investigations. The Area is confined to a narrow strip of waters extending approximately 9.4km in length immediately to the south of the Mario Zucchelli Station (MZS) and up to a maximum of 7km from the shore. No marine resource harvesting has been, is currently, or is planned to be, conducted within the Area, nor in the immediate surrounding vicinity. The site typically remains ice-free in summer, which is rare for coastal areas in the Ross Sea region, making it an ideal and accessible site for research into the near-shore benthic communities of the region. Extensive marine ecological research has been carried out at Terra Nova Bay since 1986/87, contributing substantially to our understanding of these communities which had not previously been well-described. High diversity at both species and community levels make this Area of high ecological and scientific value. Studies have revealed a complex array of species assemblages, often co-existing in mosaics (Cattaneo-Vietti, 1991; Sarà et al., 1992; Cattaneo-Vietti et al., 1997; 2000b; 2000c; Gambi et al., 1997; Cantone et al., 2000). There exist assemblages with high species richness and complex functioning, such as the sponge and anthozoan communities, alongside loosely structured, low diversity assemblages.
    [Show full text]
  • Downloaded 10/01/21 04:29 PM UTC 224 MONTHLY WEATHER REVIEW
    APRIL, 1914. MONTHLY WEATHER REWW. 223 of no direct consequence to lants, its importance being ordinary weather stations. Therefore it would be of urely meteorological, the reP ative huniiclit affects them great advantage to students of plant life if such deter- Zirectly, since it so largely determines t i! e amount of minations could be made at agricultural and forest exper- transpiration. The monthly , mean relative humidity iment stations.' and its minimum, and particularly the average relative Sunshine. humidity with its minimum during periods of different wind direction, are things important to know. In local- Light is another important factor in t-he development ities with a humid climate and wit,hout n, distinct hot of plants. The amount avdable for plants in a given eriod, where fogs are frequent, observations upon the 1oc.alit-y depends upon cloudiness and geographic lati- fatter should, of course, Gve all the information as to tude. For this reason, the avera. e monthly cloudi- humidit of the air necessary for the purposes of botanical ness, tjhe average cloudiness for win as of different direc- geograpE y.a tions, and the number of clear, semicloudy, and cloudy Precipitation. days should be computed. Some simple sunshine record, especially for winds of different directions, is The important part which precipitation, especially also necessary. The occurrence of days with sunshine total precipitation, plays in plant life, needs no discussion. should be given in per cent of the total number of obser- The maximum precipitation for any day during the month va tions. and the number of da s of precipitation are also inipor- Bammetric pressure.
    [Show full text]
  • Ice-Sheet Flow in the Vicinity of Southern Victoria Land, Antarctica: Implications for Glacial Chronology
    ABSTRACTS OF PAPERS PRESENTED ICE-SHEET FLOW IN THE VICINITY OF SOUTHERN VICTORIA LAND, ANTARCTICA: IMPLICATIONS FOR GLACIAL CHRONOLOGY By DAVID J. DREWRY (Scott Polar Research Institute, Lensfield Road, Cambridge CB2 IER, England) ABSTRACT. Systematic radio echo-sounding during three seasons since 1971-72 has produced data on the configuration of the ice sheet in East Antarctica. In the sector extending inland from southern Victoria Land, the ice sheet exhibits a large ridge which drives ice towards David Glacier in the north and Mulock and Byrd Glaciers to the south. Within 100 km of the McMurdo dry-valley region soundings along ten sub-parallel lines (c. 10 km apart) provides detail on ice surface and flow patterns at the ridge tip. A small surface dome lies just inland of Taylor Glacier. The surface drops by 100 m or more before rising to join the major ridge in East Antarctica. Only Mawson and Mulock Glaciers in this area currently discharge any ice from central East Antarctica. The small outlet glaciers including Taylor, Wright Upper, and Victoria Upper are nourished by local ice originating within a few tens of kilometres of the exposed Transantarctic Mountains. Oxygen and deuterium isotope determinations on samples taken from Taylor Glacier snout in January 1978 corroborate this hypothesis of a nearby source. 0180 values between -38 and -41%0 are isotopically much heavier than we would anticipate for ice derived from central East Antarctic ic~ sheets (-45 to -55%0). Minimum o-values for Taylor Glacier, predicted from elevation- temperature considerations close to the local ice divide based on a measured mean annual surface temperature of - 41 .S oC are in the order of -42 to -43%0.
    [Show full text]
  • The Transantarctic Mountains These Watercolor Paintings by Dee Molenaar Were Originally Published in 1985 with His Map of the Mcmurdo Sound Area of Antarctica
    The Transantarctic Mountains These watercolor paintings by Dee Molenaar were originally published in 1985 with his map of the McMurdo Sound area of Antarctica. We are pleased to republish these paintings with the permission of the artist who owns the copyright. Gunter Faure · Teresa M. Mensing The Transantarctic Mountains Rocks, Ice, Meteorites and Water Gunter Faure Teresa M. Mensing The Ohio State University The Ohio State University School of Earth Sciences School of Earth Sciences and Byrd Polar Research Center and Byrd Polar Research Center 275 Mendenhall Laboratory 1465 Mt. Vernon Ave. 125 South Oval Mall Marion, Ohio 43302 Columbus, Ohio 43210 USA USA [email protected] [email protected] ISBN 978-1-4020-8406-5 e-ISBN 978-90-481-9390-5 DOI 10.1007/978-90-481-9390-5 Springer Dordrecht Heidelberg London New York Library of Congress Control Number: 2010931610 © Springer Science+Business Media B.V. 2010 No part of this work may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, microfilming, recording or otherwise, without written permission from the Publisher, with the exception of any material supplied specifically for the purpose of being entered and executed on a computer system, for exclusive use by the purchaser of the work. Cover illustration: A tent camp in the Mesa Range of northern Victoria Land at the foot of Mt. Masley. Printed on acid-free paper Springer is part of Springer Science+Business Media (www.springer.com) We dedicate this book to Lois M. Jones, Eileen McSaveny, Terry Tickhill, and Kay Lindsay who were the first team of women to conduct fieldwork in the Transantarctic Mountains during the 1969/1970 field season.
    [Show full text]
  • Draft Comprehensive Environmental Evaluation
    Proposed Construction and Operation of a New Chinese Research Station, Victoria Land, Antarctica DRAFT COMPREHENSIVE ENVIRONMENTAL EVALUATION January 2014 Polar Research Institute of China Tongji University Contents CONTACT DETAILS ..................................................................................................................... 1 NON-TECHNICAL SUMMARY .................................................................................................. 2 1. Introduction ............................................................................................................................. 9 1.1 Purpose of a new station in Victoria Land................................................................................................... 9 1.2 History of Chinese Antarctic activities ...................................................................................................... 13 1.3 Scientific programs for the new station ..................................................................................................... 18 1.4 Preparation and submission of the Draft CEE ........................................................................................... 22 1.5 Laws, standards and guidelines ................................................................................................................. 22 1.5.1 International laws, standards and guidelines ................................................................................. 23 1.5.2. Chinese laws, standards and guidelines ......................................................................................
    [Show full text]
  • Expedition to the South Pole
    Framheim, National Library of Norway. Roald Amundsen Expedition to the South Pole E&T P 29 Roald Amundsen -2- Expedition to the South Pole by Roald Amundsen -1- Lecture delivered in German by Roald Amundsen before the Berlin Geographical Society on October 9, 1912. Translated and reprinted from the Zeitschr. der Gesell. für Erdkunde zu Berlin, 1912, No.7, pp. 481-498. Reprinted in the Annual Report of the Board of Regents of The Smithsonian Institution, Washington D.C., 1912, by permission from the Bulletin of the American Geographical Society, vol. 44, No. 11, November, 1912, New York, pp. 822-838. This edition of 100 copies was issued by The Erebus & Terror Press, Jaffrey, New Hampshire, for those attending the SouthPole-sium v.3 Oslo, Norway 12-14 May 2017. Certain images and footnotes were not included. Printed at Savron Graphics Jaffrey, New Hampshire May 2017 ❦ -2- Expedition to the South Pole HE PLAN of the third Fram expedition was twofold: First, the attainment Tof the South Pole, and, second, the exploration of the north polar regions. This evening I have the honor to report to you on the accomplishment of the first part of this plan. I can only briefly mention here the expeditions which have worked in the region which we had selected for our starting point. As we wished to reach the South Pole, our first problem was to go south as far as possible with our ship and there establish our station. Even so, the sled journeys would be long enough. I knew that the English expedition would again choose their old winter quarters in McMurdo Sound, South Victoria Land, as their starting point.
    [Show full text]
  • National Science Foundation § 670.29
    National Science Foundation § 670.29 the unique natural ecological system ASPA 115 Lagotellerie Island, Mar- in that area; and guerite Bay, Graham Land (c) Where a management plan exists, ASPA 116 New College Valley, information demonstrating the consist- Caughley Beach, Cape Bird, Ross Is- ency of the proposed actions with the land management plan. ASPA 117 Avian Island, Marguerite Bay, Antarctic Peninsula § 670.29 Designation of Antarctic Spe- ASPA 118 Summit of Mount Mel- cially Protected Areas, Specially bourne, Victoria Land Managed Areas and Historic Sites ASPA 119 Davis Valley and Forlidas and Monuments. Pond, Dufek Massif, Pensacola Moun- (a) The following areas have been tains designated by the Antarctic Treaty ASPA 120 Pointe-Geologie Parties for special protection and are Archipelego, Terre Adelie hereby designated as Antarctic Spe- ASPA 121 Cape Royds, Ross Island cially Protected Areas (ASPA). The ASPA 122 Arrival Heights, Hut Point Antarctic Conservation Act of 1978, as Peninsula, Ross Island amended, prohibits, unless authorized ASPA 123 Barwick and Balham Val- by a permit, any person from entering leys, Southern Victoria Land or engaging in activities within an ASPA 124 Cape Crozier, Ross Island ASPA. Detailed maps and descriptions ASPA 125 Fildes Peninsula, King of the sites and complete management George Island (25 de Mayo) plans can be obtained from the Na- ASPA 126 Byers Peninsula, Living- tional Science Foundation, Office of ston Island, South Shetland Islands Polar Programs, National Science ASPA 127 Haswell Island Foundation, Room 755, 4201 Wilson ASPA 128 Western shore of Admiralty Boulevard, Arlington, Virginia 22230. Bay, King George Island, South Shet- ASPA 101 Taylor Rookery, Mac.
    [Show full text]
  • Federal Register/Vol. 81, No. 175/Friday, September 9, 2016
    Federal Register / Vol. 81, No. 175 / Friday, September 9, 2016 / Notices 62543 banding. The principal avian predators ASPA 132, Potter Peninsula, King Division of Polar Programs, National of the penguins (skuas, gulls, giant George Island, South Shetland Islands Science Foundation, 4201 Wilson petrels and sheathbills) are also ASPA 133, Harmony Point, Nelson Boulevard, Arlington, Virginia 22230. monitored and, when possible, adults Island, South Shetland Island FOR FURTHER INFORMATION CONTACT: and chicks will be banded, weighed and ASPA 134, Cierva Point Offshore Nature McGinn, ACA Permit Officer, at measured for behavioral and Islands, Danco Coast, Antarctic the above address or ACApermits@ demographic studies. In addition, the Peninsula nsf.gov or (703) 292–7149. applicant may census, band and ASPA 139, Biscoe Point, Anvers Island SUPPLEMENTARY INFORMATION: The measure cape petrels and blue-eyed ASPA 140, Shores of Port Foster, National Science Foundation, as shags. The applicant may collect Deception Island, South Shetland directed by the Antarctic Conservation samples of penguin and skua blood from Islands Act of 1978 (Pub. L. 95–541), as adults of each species. The number of ASPA 144, Chile Bay amended by the Antarctic Science, takes per annum of each avian species ASPA 145, Port Foster, Deception Tourism and Conservation Act of 1996, will be as follows: chinstrap penguin, Island, South Shetland Islands ASPA 146, South Bay, Doumer Island, has developed regulations for the 3320; Adelie penguin, 2880; Gentoo Palmer Archipelago establishment of a permit system for penguin, 3020; brown skua, 600; south ASPA 148, Mount Flora, Hope Bay, various activities in Antarctica and polar skua, 600; giant petrel, 600; kelp Antarctic Peninsula designation of certain animals and gull, 100; blue-eyed shag, 150; snowy ASPA 149, Cape Shirreff, Livingston certain geographic areas a requiring sheathbill, 45; cape petrel, 200.
    [Show full text]
  • Hyaloclastite of DVDP 3, Hut Point Peninsula, Antarctica
    ages are possible, but no other fossils were found to date the sequence more precisely. Paleocurrent directions measured in approximately 30 lo- calities indicate that all turbidites were deposited from south to north. Flute casts (figure 2), crossbeds, tool marks, and ripple-mark orientations were used for paleocurrent deter- minations and were corrected for present dip of the beds. Preliminary thin section petrography of the coarser rocks collected indicates sedimentary and metamorphic source areas for the Robertson Bay Group, but unlike previous studies, a minor mafic volcanic rock fragment component was observed consistently (figure 3). The Robertson Bay Group rocks have been metamor- phosed to corderite/biotite/hornblende hornfels by De- vonian intrusives. The mechanism of emplacement seems to be by stoping. We saw no evidence for major forcible Figure 3. Photomicrograph of coarse-grained Robertson Bay injection. This, plus the absence of sediments derived from Group turbidite. Note sedimentary (a) and igneous (b) rock uplifts normally associated with orogeny, limits this event fragments. Fragments are approximately 2 millimeters in to granitic intrusives. Thus, the "Borchgrevink" Orogeny, a diameter. proposed mountain-building event, does not seem to be a true orogeny, at least in north Victoria Land. USARP Mountains (Wilson Group in the Daniels Range) These preliminary findings will be augmented by further and the Bowers Graben (Bowers Supergroup between the research on the samples. Relationships to rocks in the Leap Year and Rennick Glaciers) were also investigated by GANOVEX. The new data may shed more light on Pre- cambrian events that helped form this rock group. AMP This work was supported in part by National Science S .
    [Show full text]