DOCSLIB.ORG

Cold Regions Research & Engineering Laboratory

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text

Load more

USACE Landmarks – Antarctica Cold Regions Research & Engineering Laboratory Source: U.S. Department of the Interior | U.S. Geological Survey | http://geonames.usgs.gov/antarctic/ CEERD-PA/ba, June 17 Abele Spur Kovacs Glacier ID# 17; Ridge; 831300S | 0510500W; Decision Year – not indicated ID# 8182; Glacier; 831100S | 0491500W; Decision Year – not indicated A rock spur that descends W from Mount Lechner toward Herring Nunataks in Glacier on the SE side of Lexington Table, flowing ENE into Support Force the Forrestal Range, Pensacola Mountains. Named for CRREL civil engineer Glacier in the Forrestal Range, Pensacola Mountains (q.v.). Named in 1979 Gunars Abele to recognize his efforts during the 1973-74 USARP-CRREL after CRREL research civil engineer Austin Kovacs, leader of the 1973-74 survey in this area. USARP-CRREL survey party in this area who also worked in the McMurdo Sound area. Ackley Point ID# 17834; Cape; 774722S | 1665513E; Decision Year – 2000 Mount Langway An ice-covered point 1 mile SE of Cone Hill on the E side of Hut Point ID# 8482; Summit; 752900S | 1394700W; Decision Year – 1970 Peninsula, Ross Island. Named for CRREL sea ice specialist Stephen F. A coastal mountain (760 m) located 2.5 mi SW of Mount LeMasurier in the Ackley, Ph.D., who worked with the USAP in McMurdo Sound and diverse Ickes Mountains of Marie Byrd Land. Named for CRREL geologist, Chester parts of the Southern Ocean for more than 25 years, dating from the 1976-77 C. Langway, Ph.D., for his efforts with the USARP at Byrd Station, 1968-69. austral season. Mellor Glacier Albert Valley ID# 9835; Glacier; 733000S | 0663000E; Decision Year – 1961 ID# 18722; Valley; 772238S | 1605515E; Decision Year – 2005 Tributary glacier, flowing NNE between Mounts Newton and Maguire and A hanging valley between Conway Peak and Wendler Spur in central coalescing with Collins Glacier just prior to junction with Lambert Glacier at Apocalypse Peaks, Victoria Land. Named for CRREL research mechanical Patrick Point, in the Prince Charles Mountains. Named for English-born engineer Mary R. Albert, Ph.D., who conducted field and laboratory research glaciologist and CRREL engineer Malcolm Mellor, Ph.D., for his work at to characterize ice core, firn, and snow properties from Siple Dome, from the Mawson Station, 1957. US-ITASE traverses of West Antarctica, and from East Antarctic megadunes, 1996-2003. Ramseier Glacier Mount Anderson ID# 12340; Glacier; 803000S | 1561800E; Decision Year – 1965 Steep cirque-type glacier, 5 mi long, flowing SW to enter Byrd Glacier ID# 404; Summit; 780900S | 0861300W; Decision Year – 1960 immediately E of Mount Rummage. Named for CRREL research physicist, Mountain (4,255 m) located 2 mi S of Mount Bentley in the main ridge of the René O. Ramseier, at McMurdo and South Pole Stations, 1960-61 and 1961- Sentinel Range, Ellsworth Mountains. Discovered by the, under C.R. Bentley, 62 seasons. and named for SIPRE glaciologist Vernon H. Anderson, to recognize his efforts at Byrd Station as a member of the Marie Byrd Land Traverse Party, 1957-58. Rand Peak ID# 18048; Summit; 800600S | 1593000E; Decision Year – 2000 A prominent peak (1510 m) in the S part of Nebraska Peaks, Britannia Range. Mount Arcone Named after CRREL general engineer John H. Rand, who drilled ice core at ID# 18247; Summit; 814300S | 1610200E; Decision Year – 2003 site J-9 during the Ross Ice Shelf Project, austral summers 1974-75 and 1976- A horseshoe-shaped mountain rising to 1350 m in Nash Range, Churchill 77. Mountains. Named for CRREL geophysicist Steven A. Arcone, Ph.D., who conducted ground radar traverses and airborne radar surveys in the South Pole area, Transantarctic Mountains, and ice sheet of West Antarctica during Mount Sletten six field seasons, 1993-2002. ID# 14020; Summit; 854700S | 1533000W; Decision Year – 1967 A conspicuous rock peak surmounting Taylor Ridge on the W side of Scott Glacier, 4 mi NE of Mount Pulitzer. Named for CRREL environmental Bader Glacier engineer Robert S. Sletten who made studies in satellite geodesy at ID# 824; Glacier; 673700S | 0664500W; Decision Year – 1960 McMurdo Station in 1965. Small glacier flowing to Bourgeois Fjord just S of Thomson Head, on the W coast of Graham Land. Named for Swiss glaciologist Henri Bader. Bader was the Snow, Ice and Permafrost Research Establishment’s (SIPRE) Thuronyi Bluff Chief Scientist. (SIPRE was merged into CRREL) ID# 15278; Cliff; 664800S | 0644500W; Decision Year – not indicated A prominent bluff at the head of Mill Inlet between Balch Glacier and Gould Glacier, on the Foyn Coast, Graham Land. Named after ‘Bibliography on Mount Ballard Cold Regions Science and Technology’ editor Geza T. Thuronyi, Antarctic ID# 911; Summit; 751200S | 0700500W; Decision Year – 1968 bibliographer, U.S. Library of Congress, 1967-90; Head, Cold Regions Mountain in the W part of the Sweeney Mountains in Ellsworth Land. Named Bibliography Project and Editor, volumes 3-18, Antarctic Bibliography, compiled for CRREL equipment operator G.E. Ballard, with the South Pole Station in the Science and Technology Division of the U.S. Library of Congress. winter party in 1963. Ueda Glacier Benson Ridge ID# 15741; Glacier; 751500S | 0643500W; Decision Year – 1968 ID# 1247; Ridge; 824600S | 1644800E; Decision Year – 1966 A large glacier flowing eastward along the S side of the Scaife Mountains to Rugged ridge between Robb and Bondeson Glaciers, standing 5 mi W of the enter Hansen Inlet near the base of Antarctic Peninsula. Named for CRREL N end of the Holland Range. Named for SIPRE glaciologist Carl S. Benson, mechanical engineer Herbert T. Ueda who, with B. Lyle Hansen, was in Ph.D., who worked with the USARP at Roosevelt Island, 1961-62. charge of the deep core drilling program at Byrd Station, summers 1966-67 and 1967-68. Den Hartog Peak Weertman Island ID# 3731; Summit; 842000S | 1785200E; Decision Year – 1962 ID# 16384; Island; 665800S | 0674400W; Decision Year – 1965 A small peak at the W side of the mouth of Ramsey Glacier, 3 mi SE of Garfield Glacier Jezek Glacier Woodall Peak. Named for CRREL geologist Stephen Den Hartog, who was Hansen Inlet The largest and southernmost of the Bennett Islands, lying in Hanusse Bay. glaciologist on the Victoria Land Traverse Party (1958-59), and wintered at ID# 5490; Glacier; 745700S | 1363500W; Decision Year – 1974 ID# 6334; Stream; 751500S | 0634000W; Decision Year – 1968 ID# 7549; Glacier; 775854S | 1621313E; Decision Year – 1992 Named for CRREL geophysicist Johannes Weertman, Ph.D., American metallurgist who proposed a theory of slip of glaciers on their beds and has Little America V, 1958. A glacier, 6 mi long, flowing between Peden Cliffs and Cox Point to the E side Ice-filled inlet between Capes Schlossbach and Cox, along the E coast and A glacier on the SE side of Platform Spur, flowing NE into Emmanuel Glacier in made important contributions to the theory of glacier flow. of Hull Bay on the coast of Marie Byrd Land. Named for CRREL research near the base of Antarctic Peninsula. Named for CRREL research physical the Royal Society Range, Victoria Land. Named after CRREL geophysicist mechanical engineer Donald E. Garfield, who participated in deep core scientist B. Lyle Hansen who, with Herbert T. Ueda, was in charge of the Kenneth C. Jezek, who in 12 visits to the Arctic and Antarctic, conducted Erlanger Spur drilling activities at Byrd Station, 1967-68. deep-core drilling program at Byrd Station for several seasons, 1966-69. geophysical surveys using remote sensing techniques on measurement and ID# 4572; Ridge; 831600S | 0510600W; Decision Year – not indicated properties of terrestrial ice and sea ice with work at Dome Charlie, Ross Ice Shelf and Weddell Sea; Director, Byrd Polar Research Center, from 1989. A rock spur from the SW extremity of Lexington Table, Forrestal Range, in the Mount Gow Pensacola Mountains. Named after CRREL electronics specialist George L. Hendrickson Peak Erlanger, with Geophysical Survey Systems Inc., who worked with the ID# 5904; Summit; 712000S | 1624000E; Decision Year – 1964 ID# 6644; Summit; 855600S | 1324900W; Decision Year – 1967 Kalafut Nunatak USARP-CRREL survey in the Pensacola Mountains, 1973-74. Mountain, 1,770 m, on the E side of Rennick Glacier in the Bowers Mountains. It marks the W end of the rugged heights between the mouths of Carryer and A rock peak rising over 2,000 m at the W side of Reedy Glacier, standing 2 mi ID# 7728; Summit; 774600S | 1453600W; Decision Year – 1970 Sledgers Glaciers where these two tributaries enter Rennick Glacier. Named W of May Peak in the Quartz Hills. Named for CRREL glaciologist George A nunatak which marks the SE end of the Haines Mountains, in the Ford for CRREL geologist Anthony J. Gow, Ph.D., who carried on research at the Hendrickson, to recognize his efforts at Byrd Station, 1962-63 and 1963-64. Ranges, Marie Byrd Land. Named for CRREL electronics engineer John Byrd, South Pole, and McMurdo Stations nearly every summer season from Kalafut, for his efforts with the USARP at Byrd Station in the 1966-67 and 1959 to 1969. 1968-69 seasons..
Recommended publications
  • Office of Polar Programs

    Office of Polar Programs

    DEVELOPMENT AND IMPLEMENTATION OF SURFACE TRAVERSE CAPABILITIES IN ANTARCTICA COMPREHENSIVE ENVIRONMENTAL EVALUATION DRAFT (15 January 2004) FINAL (30 August 2004) National Science Foundation 4201 Wilson Boulevard Arlington, Virginia 22230 DEVELOPMENT AND IMPLEMENTATION OF SURFACE TRAVERSE CAPABILITIES IN ANTARCTICA FINAL COMPREHENSIVE ENVIRONMENTAL EVALUATION TABLE OF CONTENTS 1.0 INTRODUCTION....................................................................................................................1-1 1.1 Purpose.......................................................................................................................................1-1 1.2 Comprehensive Environmental Evaluation (CEE) Process .......................................................1-1 1.3 Document Organization .............................................................................................................1-2 2.0 BACKGROUND OF SURFACE TRAVERSES IN ANTARCTICA..................................2-1 2.1 Introduction ................................................................................................................................2-1 2.2 Re-supply Traverses...................................................................................................................2-1 2.3 Scientific Traverses and Surface-Based Surveys .......................................................................2-5 3.0 ALTERNATIVES ....................................................................................................................3-1
  • Antarctic Peninsula

    Antarctic Peninsula

    Hucke-Gaete, R, Torres, D. & Vallejos, V. 1997c. Entanglement of Antarctic fur seals, Arctocephalus gazella, by marine debris at Cape Shirreff and San Telmo Islets, Livingston Island, Antarctica: 1998-1997. Serie Científica Instituto Antártico Chileno 47: 123-135. Hucke-Gaete, R., Osman, L.P., Moreno, C.A. & Torres, D. 2004. Examining natural population growth from near extinction: the case of the Antarctic fur seal at the South Shetlands, Antarctica. Polar Biology 27 (5): 304–311 Huckstadt, L., Costa, D. P., McDonald, B. I., Tremblay, Y., Crocker, D. E., Goebel, M. E. & Fedak, M. E. 2006. Habitat Selection and Foraging Behavior of Southern Elephant Seals in the Western Antarctic Peninsula. American Geophysical Union, Fall Meeting 2006, abstract #OS33A-1684. INACH (Instituto Antártico Chileno) 2010. Chilean Antarctic Program of Scientific Research 2009-2010. Chilean Antarctic Institute Research Projects Department. Santiago, Chile. Kawaguchi, S., Nicol, S., Taki, K. & Naganobu, M. 2006. Fishing ground selection in the Antarctic krill fishery: Trends in patterns across years, seasons and nations. CCAMLR Science, 13: 117–141. Krause, D. J., Goebel, M. E., Marshall, G. J., & Abernathy, K. (2015). Novel foraging strategies observed in a growing leopard seal (Hydrurga leptonyx) population at Livingston Island, Antarctic Peninsula. Animal Biotelemetry, 3:24. Krause, D.J., Goebel, M.E., Marshall. G.J. & Abernathy, K. In Press. Summer diving and haul-out behavior of leopard seals (Hydrurga leptonyx) near mesopredator breeding colonies at Livingston Island, Antarctic Peninsula. Marine Mammal Science.Leppe, M., Fernandoy, F., Palma-Heldt, S. & Moisan, P 2004. Flora mesozoica en los depósitos morrénicos de cabo Shirreff, isla Livingston, Shetland del Sur, Península Antártica, in Actas del 10º Congreso Geológico Chileno.
  • Annual Report

    Annual Report

    annual report 2006-07 Antarctic Climate & Ecosystems COOPERATIVE RESEARCH CENTRE Established and supported under the Australian Government’s Cooperative Research Centre Programme Antarctic Climate & Ecosystems COOPERATIVE RESEARCH CENTRE annual report 2006-07 table of contents executive summary 1 context and major developments during the year 1 national research priorities 3 national research priority goals 3 table 1: national research priorities and CRC research 3 governance & management 4 table 2: speciied personnel 5 research programs 8 climate variability & change 9 ocean control of carbon dioxide 12 antarctic marine ecosystems 15 sea-level rise 17 policy 20 table 3: research outputs and milestones 23 research collaboration 31 commercialisation & utilisation 36 commercialisation & utilisation strategies and activities 36 intellectual property management 37 table 4: commercialisation milestones 37 communication strategy 38 end-user involvement and CRC impact on end-users 39 education & training 42 table 6: education & training outputs and/or milestones 43 third year review 44 performance measures 45 table 7: progress on performance measures 45 glossary of terms 49 executive summary The Antarctic Climate & Ecosystems Cooperative past climate captured in the Antarctic ice sheet. We Research Centre (ACE CRC) was funded to lead Australian have strengthened the previous evidence of signals research on the roles of Antarctica and the Southern in ice cores of winter sea ice cover around eastern Ocean in the global climate system and climate change. Antarctica, allowing hind-casting of sea ice dynamics We also have a brief to investigate likely impacts of that will enable us to properly interpret recent events climate change on Southern Ocean marine ecosystems possibly related to climate change.
  • A NEWS BULLETIN Published Quarterly by the NEW ZEALAND ANTARCTIC SOCIETY (INC)

    A NEWS BULLETIN Published Quarterly by the NEW ZEALAND ANTARCTIC SOCIETY (INC)

    A NEWS BULLETIN published quarterly by the NEW ZEALAND ANTARCTIC SOCIETY (INC) An English-born Post Office technician, Robin Hodgson, wearing a borrowed kilt, plays his pipes to huskies on the sea ice below Scott Base. So far he has had a cool response to his music from his New Zealand colleagues, and a noisy reception f r o m a l l 2 0 h u s k i e s . , „ _ . Antarctic Division photo Registered at Post Ollice Headquarters. Wellington. New Zealand, as a magazine. II '1.7 ^ I -!^I*"JTr -.*><\\>! »7^7 mm SOUTH GEORGIA, SOUTH SANDWICH Is- . C I R C L E / SOUTH ORKNEY Is x \ /o Orcadas arg Sanae s a Noydiazarevskaya ussr FALKLAND Is /6Signyl.uK , .60"W / SOUTH AMERICA tf Borga / S A A - S O U T H « A WEDDELL SHETLAND^fU / I s / Halley Bav3 MINING MAU0 LAN0 ENOERBY J /SEA uk'/COATS Ld / LAND T> ANTARCTIC ••?l\W Dr^hnaya^^General Belgrano arg / V ^ M a w s o n \ MAC ROBERTSON LAND\ '■ aust \ /PENINSULA' *\4- (see map betowi jrV^ Sobldl ARG 90-w {■ — Siple USA j. Amundsen-Scott / queen MARY LAND {Mirny ELLSWORTH" LAND 1, 1 1 °Vostok ussr MARIE BYRD L LAND WILKES LAND ouiiiv_. , ROSS|NZJ Y/lnda^Z / SEA I#V/VICTORIA .TERRE , **•»./ LAND \ /"AOELIE-V Leningradskaya .V USSR,-'' \ --- — -"'BALLENYIj ANTARCTIC PENINSULA 1 Tenitnte Matianzo arg 2 Esptrarua arg 3 Almirarrta Brown arc 4PttrtlAHG 5 Otcipcion arg 6 Vtcecomodoro Marambio arg * ANTARCTICA 7 Arturo Prat chile 8 Bernardo O'Higgins chile 1000 Miles 9 Prasid«fTtB Frei chile s 1000 Kilometres 10 Stonington I.
  • Glacio-Lacustrine Aragonite Deposition, Meltwater Evolution And

    Glacio-Lacustrine Aragonite Deposition, Meltwater Evolution And

    Antarctic Science 19 (3), 365–372 (2007) & Antarctic Science Ltd 2007 Printed in the UK DOI: 10.1017/S0954102007000466 Glacio-lacustrine aragonite deposition, meltwater evolution and glacial history during isotope stage 3 at Radok Lake, Amery Oasis, northern Prince Charles Mountains, East Antarctica IAN D. GOODWIN1 and JOHN HELLSTROM2 1Environmental and Climate Change Research Group, School of Environmental and Life Sciences, University of Newcastle, Callaghan, NSW 2308, Australia 2School of Earth Sciences, University of Melbourne, Parkville, VIC 3010, Australia [email protected] Abstract: The late Quaternary glacial history of the Amery Oasis, and Prince Charles Mountains is of significant interest because about 10% of the total modern Antarctic ice outflow is discharged via the adjacent Lambert Glacier system. A glacial thrust moraine sequence deposited along the northern shoreline of Radok Lake between 20–10 ka BP, overlies a layer of thin, aragonite crusts which provide important constraints on the glacial history of the Amery Oasis. The modern Radok Lake is fed by the terminal meltwaters of the alpine Battye Glacier. The aragonite crusts were deposited in shallow water of ancestral Radok Lake 53 ka BP,during the A3 warm event in Isotope Stage 3. Oxygen isotope (d18O) analysis of the last glacial-age aragonite crusts 18 indicates that they precipitated from freshwater with a d OSMOW composition of -36%, which is 8% more depleted than the present water (-28%) in Radok Lake. A regional oxygen isotope (d18O) and elevation relationship for snow is used to determine the source of meltwater and glacial ice in Radok Lake during the A3 warm event.
  • Prydz Bay Region, East Antarctica J.M

    Prydz Bay Region, East Antarctica J.M

    Antarctic Science 18 (1), 83–99 (2006) © Antarctic Science Ltd Printed in the UK DOI: 10.1017/S0954102006000083 A review of the Cenozoic stratigraphy and glacial history of the Lambert Graben–Prydz Bay region, East Antarctica J.M. WHITEHEAD1*, P.G. QUILTY2, B.C. MCKELVEY3 and P.E. O’BRIEN4 1Institute of Antarctic and Southern Ocean Studies, University of Tasmania, Private Bag 77, Hobart, TAS 7001, Australia 2School of Earth Sciences University of Tasmania, Private Bag 79, Hobart, TAS 7001, Australia 3Division of Earth Sciences, University of New England, Armidale, NSW 2351, Australia 4Geoscience Australia, GPO Box 378, Canberra, ACT 2601, Australia *[email protected] Abstract: The Cenozoic glacial history of East Antarctica is recorded in part by the stratigraphy of the Prydz Bay–Lambert Graben region. The glacigene strata and associated erosion surfaces record at least 10 intervals of glacial advance (with accompanying erosion and sediment compaction), and more than 17 intervals of glacial retreat (enabling open marine deposition in Prydz Bay and the Lambert Graben). The number of glacial advances and retreats is considerably less than would be expected from Milankovitch frequencies due to the incomplete stratigraphic record. Large advances of the Lambert Glacier caused progradation of the continental shelf edge. At times of extreme glacial retreat, marine conditions reached > 450 km inland from the modern ice shelf edge. This review presents a partial reconstruction of Cenozoic glacial extent within Prydz Bay and the Lambert Graben that can be compared to eustatic sea-level records from the southern Australian continental margin. Received 1 December 2004, accepted 15 July 2005 Key words: glaciation, ice sheet, Milankovitch, Prince Charles Mountains Introduction Study area In recent years there has been considerable investigation of This paper reviews the Cenozoic stratigraphy of the the Cenozoic geology of the Lambert Graben and Prydz Antarctic continent and margin from 60°E to 80°E.
  • Federal Register/Vol. 84, No. 78/Tuesday, April 23, 2019/Rules

    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.
  • Flow of the Amery Ice Shelf and Its Tributary Glaciers

    Flow of the Amery Ice Shelf and Its Tributary Glaciers

    18th Australasian Fluid Mechanics Conference Launceston, Australia 3-7 December 2012 Flow of the Amery Ice Shelf and its Tributary Glaciers M. L. Pittard1 2 , J. L. Roberts3 2, R. C. Warner3 2, B.K Galton-Fenzi2, C.S. Watson4 and R. Coleman1 1Institute for Marine and Antarctic Studies University of Tasmania, Private Bag 129, Hobart, Tasmania 7001, Australia 2Antarctic Climate & Ecosystems Cooperative Research Centre University of Tasmania, Private Bag 80, Hobart, Tasmania 7001, Australia 3Department of Sustainability, Environment, Water, Population and Communities, Australian Antarctic Division Hobart, Tasmania, Australia 4 School of Geography and Environmental Studies University of Tasmania, Private Bag 76, Hobart, Tasmania 7001, Australia Abstract thickness across the grounding zone to provide information on ice discharge. Strain rates and vorticity can be used to investi- The Amery Ice Shelf (AIS) is a major ice shelf that drains ap- gate the dynamics of the flow. The longitudinal strain rate gives proximately 16% of the East Antarctic Ice Sheet [1]. Here we insight into the way the velocity changes along the flow and use a sequence of visible spectrum Landsat7 satellite images may reflect influences of features beneath the ice. The shear to track persistent surface features over the southern portion of component of the strain rate highlights the localisation of shear the AIS and its three major tributary glaciers. A spatially in- stresses at the margin of the flow. Vorticity displays a combina- complete velocity field is calculated by comparing the distances tion of rotation in flow direction and strong shear deformations. features have moved between image pairs. Key features of the flow field including the vorticity and strain rate distributions are The AIS is one of the largest ice shelves bordering the East discussed.
  • Glaciomarine Sedimentation at the Continental Margin of Prydz Bay, East Antarctica: Implications on Palaeoenvironmental Changes During the Quaternary

    Glaciomarine Sedimentation at the Continental Margin of Prydz Bay, East Antarctica: Implications on Palaeoenvironmental Changes During the Quaternary

    Alfred-Wegener-Institut für Polar- und Meeresforschung Universität Potsdam, Institut für Erd- und Umweltwissenschaften Glaciomarine sedimentation at the continental margin of Prydz Bay, East Antarctica: implications on palaeoenvironmental changes during the Quaternary Dissertation zur Erlangung des akademischen Grades Doktor der Naturwissenschaften (Dr. rer. nat.) in der Wissenschaftsdisziplin “Geowissenschaften” eingereicht an der Mathematisch-Naturwissenschaftlichen Fakultät der Universität Potsdam von Andreas Borchers Potsdam, 30. November 2010 Das Höchste, wozu der Mensch gelangen kann, ist das Erstaunen. J. W. von Goethe Acknowledgements This dissertation would not have been possible without the support and help of numerous people to whom I would like to express my gratitude. First, I am highly indebted to PD Dr. Bernhard Diekmann for the possibility to conduct this work under his supervision and for his constant support, whenever discussion or advice was needed. I appreciated his vast expertise and knowledge of marine geology, sedimentology and Quaternary Science that he so enthusiastically shared with me, adding considerably to my experience. Besides being a full-hearted geologist, he is also a great guitarist, which I enjoyed during the past years, especially during the expeditions I had the chance to participate. I would also like to thank Prof. Dr. Hans-Wolfgang Hubberten for his general support and understanding, giving me the opportunity to broaden my knowledge of marine geology in the field. Using the infrastructure of the institute in Potsdam, Bremerhaven and on the world’s oceans has made a major contribution realizing this work. I am deeply grateful to Prof. Dr. Ulrike Herzschuh and Dr. Gerhard Kuhn who provided a large part of assistance by discussions, constructive advices and moral support.
  • Glacial Geomorphology of the Pensacola Mountains, Weddell Sea

    Glacial Geomorphology of the Pensacola Mountains, Weddell Sea

    Glacial Geomorphology of the Pensacola Mountains, Weddell Sea Sector, Antarctica 1 1 1 2 3 4 5 3 Matthew Hegland , Michael Vermeulen , Claire Todd , Greg Balco , Kathleen Huybers , Seth Campbell , Chris Simmons , Howard Conway (1) Department of Geosciences, Pacific Lutheran University, Tacoma, WA 98447, (2) Berkeley Geochronology Center, 2455 Ridge Road, Berkeley, CA 94709, (3) Department of Earth and Space Sciences, University of Washington, Seattle, WA 98195, (4) Climate Change Institute, University of Maine, Orono, ME 04469, (5) Pro Guiding Service, Seattle, WA 98045 Abstract We mapped glacial geologic features in the Thomas, Schmidt, and Williams Hills in the western Pensacola Mountains (Figure 1). The three nunatak ranges are adjacent to Foundation Ice Stream (FIS), which drains ice from the East and West Antarctic Ice Sheets (EAIS and WAIS), into the Filchner-Ronne Ice Shelf. Glacial deposits in the Pensacola Mountains record changes in the thickness of FIS and provide insight into ice sheet history. Glacial striations oriented transverse to topography on nunatak summits indicate (a) the presence of warm-based ice (b) that ice was thick enough to flow unconstrained over topography, and (c) suggest increased contribution from the EAIS. Preserved deposits with varying weathering extents indicate multiple periods of advance of cold-based ice. Preliminary numerical modeling of ice surfaces in the Thomas Hills suggest elevation changes could be attributed to local variations in ablation in addition to surface elevation changes in FIS. Results GEOMORPHIC FEATURES ON EXPOSED NUNATAKS Schmidt and Williams Hills (Figures 2,3, and 4): • Depositional landforms are sparse with occasional highly weathered erratics found over 100 m above the modern ice surface and relatively unweathered erratics deposited beside them below 100 m.
  • Tectonic Subdivision of the Prince Charles Mountains: a Review of Geologic and Isotopic Data

    Tectonic Subdivision of the Prince Charles Mountains: a Review of Geologic and Isotopic Data

    View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Electronic Publication Information Center Published in: Fütterer, D K, Damaske, D, Kleinschmidt, G, Miller, H & Tessensohn, F (eds.), Antarctica: contributions to global earth sciences, Springer, Berlin, Heidelberg, New York, 63-68 http://dx.doi.org/10.1007/3-540-32934-X The original publication is available at http://www.springerlink.com see http://dx.doi.org/10.1007/3-540-32934-X_9 Data are available at: http://dx.doi.org/10.1594/PANGAEA.611692 Tectonic Subdivision of the Prince Charles Mountains: A Review of Geologic and Isotopic Data Evgeny V. Mikhalsky1 · Anatoly A. Laiba2 · Boris V. Beliatsky3 1 (1) VNIIOkeangeologia, Angliysky Avenue1, St. Petersburg 190121, Russia (2) PMGRE, Pobeda Street 24, Lomonosov 189510, Russia (3) IGGP, Makarova emb. 2, 199034 St. Petersburg 199034, Russia Abstract. The Prince Charles Mountains have been subject to extensive geological and geophysical inves- tigations by former Soviet,Russian and Australian scientists from the early 1970s. In this paper we sum- marise, and review available geological and isotopic data, and report results of new isotopic studies (Sm- Nd, Pb-Pb, and U-Pb SHRIMP analyses); field geological data obtained during the PCMEGA 2002/2003 are utilised. The structure of the region is described in terms of four tectonic terranes. Those include Ar- chaean Ruker, Palaeoproterozoic Lambert, Mesoproterozoic Fisher, and Meso- to Neoproterozoic Beaver Terranes. Pan-African activities (granite emplacement and probably tectonics) in the Lambert Terrane are reported. We present a summary of the composition of these terranes, discuss their origin and relations- hips.
  • Durham Research Online

    Durham Research Online

    Durham Research Online Deposited in DRO: 15 September 2014 Version of attached le: Published Version Peer-review status of attached le: Peer-reviewed Citation for published item: Hillenbrand, C.-D. and Bentley, M.J. and Stolldorf, T.D. and Hein, A.S. and Kuhn, G. and Graham, A.G.C. and Fogwill, C.J. and Kristoerson, Y. and Smith, J.A. and Anderson, J.B. and Larter, R.D. and Melles, M. and Hodgson, D.A. and Mulvaney, R. and Sugden, D.E. (2013) 'Reconstruction of changes in the Weddell Sea sector of the Antarctic Ice Sheet since the Last Glacial Maximum.', Quaternary science reviews., 100 . pp. 111-136. Further information on publisher's website: http://dx.doi.org/10.1016/j.quascirev.2013.07.020 Publisher's copyright statement: c 2014 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/3.0/). Additional information: Use policy The full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that: • a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders. Please consult the full DRO policy for further details. Durham University Library, Stockton Road, Durham DH1 3LY, United Kingdom Tel : +44 (0)191 334 3042 | Fax : +44 (0)191 334 2971 https://dro.dur.ac.uk Quaternary Science Reviews 100 (2014) 111e136 Contents lists available at ScienceDirect Quaternary Science Reviews journal homepage: www.elsevier.com/locate/quascirev Reconstruction of changes in the Weddell Sea sector of the Antarctic Ice Sheet since the Last Glacial Maximumq Claus-Dieter Hillenbrand a,*,1, Michael J.