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University Microfilms, Inc., Ann Arbor, Michigan GEOLOGY of the SCOTT GLACIER and WISCONSIN RANGE AREAS, CENTRAL TRANSANTARCTIC MOUNTAINS, ANTARCTICA
This dissertation has been /»OOAOO m icrofilm ed exactly as received MINSHEW, Jr., Velon Haywood, 1939- GEOLOGY OF THE SCOTT GLACIER AND WISCONSIN RANGE AREAS, CENTRAL TRANSANTARCTIC MOUNTAINS, ANTARCTICA. The Ohio State University, Ph.D., 1967 Geology University Microfilms, Inc., Ann Arbor, Michigan GEOLOGY OF THE SCOTT GLACIER AND WISCONSIN RANGE AREAS, CENTRAL TRANSANTARCTIC MOUNTAINS, ANTARCTICA DISSERTATION Presented in Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy in the Graduate School of The Ohio State University by Velon Haywood Minshew, Jr. B.S., M.S, The Ohio State University 1967 Approved by -Adviser Department of Geology ACKNOWLEDGMENTS This report covers two field seasons in the central Trans- antarctic Mountains, During this time, the Mt, Weaver field party consisted of: George Doumani, leader and paleontologist; Larry Lackey, field assistant; Courtney Skinner, field assistant. The Wisconsin Range party was composed of: Gunter Faure, leader and geochronologist; John Mercer, glacial geologist; John Murtaugh, igneous petrclogist; James Teller, field assistant; Courtney Skinner, field assistant; Harry Gair, visiting strati- grapher. The author served as a stratigrapher with both expedi tions . Various members of the staff of the Department of Geology, The Ohio State University, as well as some specialists from the outside were consulted in the laboratory studies for the pre paration of this report. Dr. George E. Moore supervised the petrographic work and critically reviewed the manuscript. Dr. J. M. Schopf examined the coal and plant fossils, and provided information concerning their age and environmental significance. Drs. Richard P. Goldthwait and Colin B. B. Bull spent time with the author discussing the late Paleozoic glacial deposits, and reviewed portions of the manuscript. -
Reconstructions of Antarctic Topography Since the Eocene–Oligocene T Boundary ⁎ Guy J.G
Palaeogeography, Palaeoclimatology, Palaeoecology 535 (2019) 109346 Contents lists available at ScienceDirect Palaeogeography, Palaeoclimatology, Palaeoecology journal homepage: www.elsevier.com/locate/palaeo Reconstructions of Antarctic topography since the Eocene–Oligocene T boundary ⁎ Guy J.G. Paxmana, , Stewart S.R. Jamiesona, Katharina Hochmuthb,c, Karsten Gohlb, Michael J. Bentleya, German Leitchenkovd,e, Fausto Ferracciolif a Department of Geography, Durham University, Durham, UK b Alfred Wegener Institute Helmholtz-Center for Polar and Marine Sciences, Bremerhaven, Germany c School of Geography, Geology and the Environment, University of Leicester, Leicester, UK d Institute for Geology and Mineral Resources of the World Ocean, St. Petersburg, Russia e Institute of Earth Sciences, St. Petersburg State University, St. Petersburg, Russia f British Antarctic Survey, Cambridge, UK ABSTRACT Accurate models of past Antarctic ice sheet behaviour require realistic reconstructions of the evolution of bedrock topography. However, other than a preliminary attempt to reconstruct Antarctic topography at the Eocene–Oligocene boundary, the long-term evolution of Antarctica's subglacial topography throughout its glacial history has not previously been quantified. Here, we derive new reconstructions of Antarctic topography for four key time slices in Antarctica's climate andglacial history: the Eocene–Oligocene boundary (ca. 34 Ma), the Oligocene–Miocene boundary (ca. 23 Ma), the mid-Miocene climate transition (ca. 14 Ma), and the mid- Pliocene warm period (ca. 3.5 Ma). To reconstruct past topography, we consider a series of processes including ice sheet loading, volcanism, thermal subsidence, horizontal plate motion, erosion, sedimentation and flexural isostatic adjustment, and validate our models where possible using onshore and offshore geological constraints. Our reconstructions show that the land area of Antarctica situated above sea level was ~25% larger at the Eocene–Oligocene boundary than at the present-day. -
The Neogene Biota of the Transantarctic Mountains
University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Related Publications from ANDRILL Affiliates Antarctic Drilling Program 2007 The Neogene biota of the Transantarctic Mountains A. C. Ashworth North Dakota State University, [email protected] A. R. Lewis North Dakota State University, [email protected] D. R. Marchant Boston University, [email protected] R. A. Askin [email protected] D. J. Cantrill Royal Botanic Gardens, [email protected] See next page for additional authors Follow this and additional works at: https://digitalcommons.unl.edu/andrillaffiliates Part of the Environmental Indicators and Impact Assessment Commons Ashworth, A. C.; Lewis, A. R.; Marchant, D. R.; Askin, R. A.; Cantrill, D. J.; Francis, J. E.; Leng, M. J.; Newton, A. E.; Raine, J. I.; Williams, M.; and Wolfe, A. P., "The Neogene biota of the Transantarctic Mountains" (2007). Related Publications from ANDRILL Affiliates. 5. https://digitalcommons.unl.edu/andrillaffiliates/5 This Article is brought to you for free and open access by the Antarctic Drilling Program at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Related Publications from ANDRILL Affiliates by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. Authors A. C. Ashworth, A. R. Lewis, D. R. Marchant, R. A. Askin, D. J. Cantrill, J. E. Francis, M. J. Leng, A. E. Newton, J. I. Raine, M. Williams, and A. P. Wolfe This article is available at DigitalCommons@University of Nebraska - Lincoln: https://digitalcommons.unl.edu/ andrillaffiliates/5 U.S. Geological Survey and The National Academies; USGS OF-2007-1047, Extended Abstract.071 The Neogene biota of the Transantarctic Mountains A. -
Download Factsheet
Antarctic Factsheet Geographical Statistics May 2005 AREA % of total Antarctica - including ice shelves and islands 13,829,430km2 100.00% (Around 58 times the size of the UK, or 1.4 times the size of the USA) Antarctica - excluding ice shelves and islands 12,272,800km2 88.74% Area ice free 44,890km2 0.32% Ross Ice Shelf 510,680km2 3.69% Ronne-Filchner Ice Shelf 439,920km2 3.18% LENGTH Antarctic Peninsula 1,339km Transantarctic Mountains 3,300km Coastline* TOTAL 45,317km 100.00% * Note: coastlines are fractal in nature, so any Ice shelves 18,877km 42.00% measurement of them is dependant upon the scale at which the data is collected. Coastline Rock 5,468km 12.00% lengths here are calculated from the most Ice coastline 20,972km 46.00% detailed information available. HEIGHT Mean height of Antarctica - including ice shelves 1,958m Mean height of Antarctica - excluding ice shelves 2,194m Modal height excluding ice shelves 3,090m Highest Mountains 1. Mt Vinson (Ellsworth Mts.) 4,892m 2. Mt Tyree (Ellsworth Mts.) 4,852m 3. Mt Shinn (Ellsworth Mts.) 4,661m 4. Mt Craddock (Ellsworth Mts.) 4,650m 5. Mt Gardner (Ellsworth Mts.) 4,587m 6. Mt Kirkpatrick (Queen Alexandra Range) 4,528m 7. Mt Elizabeth (Queen Alexandra Range) 4,480m 8. Mt Epperly (Ellsworth Mts) 4,359m 9. Mt Markham (Queen Elizabeth Range) 4,350m 10. Mt Bell (Queen Alexandra Range) 4,303m (In many case these heights are based on survey of variable accuracy) Nunatak on the Antarctic Peninsula 1/4 www.antarctica.ac.uk Antarctic Factsheet Geographical Statistics May 2005 Other Notable Mountains 1. -
Age of the Falla Formation (Triassic), Queen Alexandra Range
West Antarctica, has been computed with the use of a Bentley, C. R., and J . W. Clough. 1972. Seismic refraction finite difference technique. Results agree well with ob- shooting in Ellsworth and Dronning Maud Lands. In: Ant- served data. Comparison with calculations based on arctic Geology and Geophysics (R. J . Adie, ed.). Oslo, Uni- versitetsforlaget. 169-172. approximations commonly made in surface wave analyses Clough, J . W. 1973. Radio-echo sounding: brine percolation 4 (Poissons ratio = 1/ ; density = constant) surprisingly layer. Journal of Glaciology, 12(64): 141-143. shows that the group velocities are relatively more sensi- Kohnen, H. 1971. The relation between seismic urn structure, tive to incorrect densities than to incorrect shear wave temperature, and accumulation. Zeitschrift für Gletscherkunde velocities. und Glazialgeologie, VII( I-2): 141-151. Kohnen, H. 1972. Uber die beziehung zwischen seismischen 7. Final strain-rate calculations for a grid network geschwindigkeiten und der dichte in firn and eis. Zeitschrift across Roosevelt Island show a strongly asymmetrical für Geophysik, 38: 925-935. profile, with the longitudinal extensional strains twice as Kohnen, H., and C. R. Bentley. 1973. Seismic refraction and re- great on the northeast as on the southwest flank of the flection measurements at Byrd Station, Antarctica. Journal of Glaciology, 12(64): 101-111. island. Since accumulation rates on the two flanks are Kososki, B. A. 1972. A gravity study of West Antarctica. M. S. about the same the difference in strain rates is probably Thesis, University of Wisconsin. attributable to the effect of the Ross Ice Shelf. Robertson, J. D. 1972. A seismic study of the structure and metamorphism of 6rn in West Antarctica. -
Geologic Map of the Davis Valley Quadrangle and Part of the Cordiner Peaks Quadrangle, Pensacola Mountains, Antarctica
-0 DEPARTMENT OF THE INTERIOR UNITED STATES GEOLOGICAL SURVEY GEOLOGIC MAP OF THE DAVIS VALLEY QUADRANGLE AND PART OF THE CORDINER PEAKS QUADRANGLE, PENSACOLA MOUNTAINS, ANTARCTICA By Arthur B. Ford, Dwight L. Schmidt, and Walter W. Boyd, Jr. Prepared by the U.S. GEOLOGICAL SURVEY under the auspices of the NATIONAL SCIENCE FOUNDATION -N V'l 0 0 0 0 U.S. ANTARCTIC RESEARCH PROGRAM MAP Published by the U.S. Geological Survey, 1978 G GEOLOGIC MAP SYMBOLS COMMONLY USED ON MAPS OF THE UNITED STATES GEOLOGICAL SURVEY (Special symbols are shown in explanation) Contact-Dashed where approximately Strike and dip of beds-Ball indicates located; short dashed where inferred; top of beds known from sedimentary dotted where concealed structures _1!_ Inclined EB Horizontal Contact-Showing dip; well exposed at -+- Vertical Overturned triangle -..J!. Strike and dip of foliation Fault-Dashed where approximately located; short dashed where inferred; ~ Inclined -+·Vertical +Horizontal dotted where concealed Strike and dip of cleavage Fault, showing dip-Ball and bar on ~ Inclined ~Vertical +Horizontal downthrown side Bearing and plunge of lineation Normal fault-Hachured on down '~Inclined • Vertical - Horizontal thrown side Strike and dip of joints Fault-Showing relative horizontal -~ Inclined --Vertical +Horizontal movement Note: Planar symbols (strike and dip + + + + + + Thrust fault-Sawteeth on upper plate of beds, foliation or schistosity, and cleav age) may be combined with linear symbols to record data observed at ~ Anticline-Showing direction of plunge; same locality by superimposed symbols dashed where approximately located; at point of observation. Coexisting dotted where concealed planar symbols are shown intersecting at point of observation. -
2010-2011 Science Planning Summaries
Find information about current Link to project web sites and USAP projects using the find information about the principal investigator, event research and people involved. number station, and other indexes. Science Program Indexes: 2010-2011 Find information about current USAP projects using the Project Web Sites principal investigator, event number station, and other Principal Investigator Index indexes. USAP Program Indexes Aeronomy and Astrophysics Dr. Vladimir Papitashvili, program manager Organisms and Ecosystems Find more information about USAP projects by viewing Dr. Roberta Marinelli, program manager individual project web sites. Earth Sciences Dr. Alexandra Isern, program manager Glaciology 2010-2011 Field Season Dr. Julie Palais, program manager Other Information: Ocean and Atmospheric Sciences Dr. Peter Milne, program manager Home Page Artists and Writers Peter West, program manager Station Schedules International Polar Year (IPY) Education and Outreach Air Operations Renee D. Crain, program manager Valentine Kass, program manager Staffed Field Camps Sandra Welch, program manager Event Numbering System Integrated System Science Dr. Lisa Clough, program manager Institution Index USAP Station and Ship Indexes Amundsen-Scott South Pole Station McMurdo Station Palmer Station RVIB Nathaniel B. Palmer ARSV Laurence M. Gould Special Projects ODEN Icebreaker Event Number Index Technical Event Index Deploying Team Members Index Project Web Sites: 2010-2011 Find information about current USAP projects using the Principal Investigator Event No. Project Title principal investigator, event number station, and other indexes. Ainley, David B-031-M Adelie Penguin response to climate change at the individual, colony and metapopulation levels Amsler, Charles B-022-P Collaborative Research: The Find more information about chemical ecology of shallow- USAP projects by viewing individual project web sites. -
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. -
Abridged Final Report of the Eighteenth Session
World Meteorological Congress Abridged Final Report of the Eighteenth Session Geneva 3–14 June 2019 WEATHER CLIMATE WATER CLIMATE WEATHER WMO-No. 1236 World Meteorological Congress Abridged Final Report of the Eighteenth session Geneva 3–14 June 2019 WEATHER CLIMATE WATER CLIMATE WEATHER WMO-No. 1236 WMO-No. 1236 © World Meteorological Organization, 2019 The right of publication in print, electronic and any other form and in any language is reserved by WMO. Short extracts from WMO publications may be reproduced without authorization, provided that the complete source is clearly indicated. Editorial correspondence and requests to publish, reproduce or translate this publication in part or in whole should be addressed to: Chair, Publications Board World Meteorological Organization (WMO) 7 bis, avenue de la Paix Tel.: +41 (0) 22 730 84 03 P.O. Box 2300 Fax: +41 (0) 22 730 81 17 CH-1211 Geneva 2, Switzerland Email: [email protected] ISBN 978-92-63-11236-1 NOTE The designations employed in WMO publications and the presentation of material in this publication do not imply the expression of any opinion whatsoever on the part of WMO concerning the legal status of any country, territory, city or area, or of its authorities, or concerning the delimitation of its frontiers or boundaries. The mention of specific companies or products does not imply that they are endorsed or recommended by WMO in preference to others of a similar nature which are not mentioned or advertised. This report contains the text as adopted by Plenary and has been issued without formal editing. Acronyms used in this report may be found in METEOTERM, the WMO terminology database, at http://public.wmo.int/en/resources/meteoterm. -
Boletín Informativo N°2/2017 Del Instituto De Investigaciones Histórico Aeronáuticas De Chile Siminic Ossio, Iván
cur REVISTA SKUA - N°2/2020 - INSTITUTO DE INVESTIGACIONES HISTÓRICO AERONÁUTICAS DE CHILE 2 “Chile, fértil provincia, y señalada En la región Antártica famosa, De remotas naciones respetada Por fuerte, principal y poderosa; La gente que produce es tan granada, Tan soberbia, gallarda y belicosa, Que no ha sido por Rey jamás regida Ni a extranjero dominio sometida.” Alonso de Ercilla y Zúñiga (1569) La Araucana, poema épico basado en la conquista española de esta parte de América del Sur, bautizada como Chile. No sé si hoy se aún se enseñe en nuestros colegios, pero sí sé, que aún se le considera una de las obras de la literatura española, más relevante a nivel mundial. En mí no tan buena memoria, junto a mis no tan esmerados períodos de aplicación escolar, puedo aún recordar con especial cariño, las líneas que elegí para comenzar este editorial. Cuando este 23 de junio se cumple el quincuagésimo noveno aniversario de la entrada en vigor del Tratado Antártico, del cual Chile es uno de los doce países signatarios, se me hace difícil no asociar a esta hermosa pieza con un claro y certero testimonio de identidad como también de herencia geoestratégica. ¿Qué argumentos más válidos podríamos esgrimir, para indicar al mundo, quienes somos y dónde estamos? ¿Hay alguna otra nación, que pueda argumentar alguna pretensión escrita, similar o más antigua, para con la Antártica? REVISTA SKUA - N°2/2020 - INSTITUTO DE INVESTIGACIONES HISTÓRICO AERONÁUTICAS DE CHILE 3 Hoy, este nuevo “Skua” continúa el vuelo que iniciamos hace tres meses, a través de los relatos, estudios y experiencias que vuelven a conectar este Chile continental con el Territorio Chileno Antártico, tantas veces desconocido e inexplorado, no sólo conquistado por DERECHO y NATURAL HERENCIA, sino que también por la tenacidad, voluntad y valor de vivirlo, explorarlo y quererlo, territorio dueño de una historia e identidad que forma parte íntegra de la fortaleza e ingenuidad que nos hace y distingue como chilenos. -
Transantarctic Mountains, Antarctica
Palaeogeography, Palaeoclimatology, Palaeoecology 213 (2004) 65–82 www.elsevier.com/locate/palaeo Neogene vegetation of the Meyer Desert Formation (Sirius Group) Transantarctic Mountains, Antarctica Allan C. Ashwortha,*, David J. Cantrillb aDepartment of Geosciences, North Dakota State University, Fargo, ND 58105-5517, USA bDepartment of Palaeobotany, Swedish Museum of Natural History, Box 50007, SE-104 05, Stockholm, Sweden Received 5 November 2003; received in revised form 28 May 2004; accepted 2 July 2004 Abstract A tundra vegetation consisting of at least 18 plant species is described from the Meyer Desert Formation which outcrops along the Beardmore Glacier in the Transantarctic Mountains, about 500 km from the South Pole. The fossils include pollen, seeds, fruits, flowers, leaves, wood, and in situ plants, of which wood and leaves of Nothofagus and a pollen assemblage had been previously reported. The plants include a cryptogamic flora of mosses and liverworts, conifers, and angiosperms in the families Gramineae, Cyperaceae, Nothofagaceae, Ranunculaceae, Hippuridaceae, ?Caryophyllaceae, and ?Chenopodiaceae or ?Myrtaceae. The plants grew in a weakly-developed soil formed within a complex periglacial environment that included moraines, glacial outwash streams, well-drained gravel ridges, and poorly drained depressions in which peat and marl were being deposited. D 2004 Elsevier B.V. All rights reserved. Keywords: Antarctica; Neogene; Nothofagus; Palaeoecology; Biodiversity; Palaeoclimate 1. Introduction yophyllaceae). Both species occur in the area from the islands of the Scotia Ridge, along the west coast of the The Antarctic flora today is dominated by crypto- Antarctic Peninsula south to the current southernmost gams, most of which only grow in the most sheltered site on Alamode Island, Terra Firma Islands at coastal locations north of 658S. -
Searcher Studies Sea Ice Breakup by Emily Stone Sun Staff Most People Walking Across Ice Hope It Doesn’T Break
Published during the austral summer at McMurdo Station, Antarctica, for the United States Antarctic Program December 12, 2004 Hanging out on the ice Taking a crack at ice Researcher studies sea ice breakup By Emily Stone Sun staff Most people walking across ice hope it doesn’t break. John Dempsey came to Antarctica to force ice to crack, and then study how it happened. He’s researching the speed and direction of ice cracks, and how cracking is affected by changes in temperature, salinity, and the microstructure of the ice. He is focussed on how warmer ice breaks. Dempsey, a professor of civil and environmental engineering at Clarkson University in Potsdam, New York, left McMurdo Saturday after seven weeks here. His field work was done at the group’s sea ice camp, dubbed Stonehenge because of the large, rectangular slabs of ice the researchers stood on end after cutting the slabs to prepare for the experiment. Curious Adelie penguins stopped by every now and then to check out what the group was up to and seals occasionally used holes the group cut to come up for a breath. See Sea ice on page 10 Creative minds, busy hands Off-hours filled with arts and crafts By Kristan Hutchison Sun staff People working in Antarctica tend to be crafty, turning idle hours into productive time. After work, many people keep their hands busy knitting, carving, or otherwise creating. “We’re the kind of folk who can take baling wire and duct tape and turn it into something pretty impressive,” said Barb Watson, instrument technician at Palmer Station, where arts and crafts are perhaps the most popular.