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Review of the Geology and Paleontology of the Ellsworth Mountains, Antarctica
U.S. Geological Survey and The National Academies; USGS OF-2007-1047, Short Research Paper 107; doi:10.3133/of2007-1047.srp107 Review of the geology and paleontology of the Ellsworth Mountains, Antarctica G.F. Webers¹ and J.F. Splettstoesser² ¹Department of Geology, Macalester College, St. Paul, MN 55108, USA ([email protected]) ²P.O. Box 515, Waconia, MN 55387, USA ([email protected]) Abstract The geology of the Ellsworth Mountains has become known in detail only within the past 40-45 years, and the wealth of paleontologic information within the past 25 years. The mountains are an anomaly, structurally speaking, occurring at right angles to the Transantarctic Mountains, implying a crustal plate rotation to reach the present location. Paleontologic affinities with other parts of Gondwanaland are evident, with nearly 150 fossil species ranging in age from Early Cambrian to Permian, with the majority from the Heritage Range. Trilobites and mollusks comprise most of the fauna discovered and identified, including many new genera and species. A Glossopteris flora of Permian age provides a comparison with other Gondwana floras of similar age. The quartzitic rocks that form much of the Sentinel Range have been sculpted by glacial erosion into spectacular alpine topography, resulting in eight of the highest peaks in Antarctica. Citation: Webers, G.F., and J.F. Splettstoesser (2007), Review of the geology and paleontology of the Ellsworth Mountains, Antarctica, in Antarctica: A Keystone in a Changing World – Online Proceedings of the 10th ISAES, edited by A.K. Cooper and C.R. Raymond et al., USGS Open- File Report 2007-1047, Short Research Paper 107, 5 p.; doi:10.3133/of2007-1047.srp107 Introduction The Ellsworth Mountains are located in West Antarctica (Figure 1) with dimensions of approximately 350 km long and 80 km wide. -
Itinerary Changes 2021
ITINERARY CHANGES 2021 Due to the ongoing COVID-19 pandemic ALE has made some adjustments to our operations in order to ensure the well-being of our guests and staff and to minimize the risk of bringing the infection into Antarctica. Below, you will find how our itineraries across all of our experiences for the 2021-22 season will be modified. Punta Arenas • You will be required to arrive in Punta Arenas 4 nights prior to your departure. • Welcome and Safety Briefings will be done virtually. • There will be no fitting periods for Rental Clothing in the Punta Arenas office, instead clothing will be picked up at a specified location and time. Further information will be given upon arrival in Punta Arenas. • Your Gear Checks will be done virtually and we will explain to you how this will be done once you arrive in Punta Arenas. • Flight Check in and Baggage Drop Off will be done using COVID-19 safe practices and you will receive more information on how this will be done on arrival in Punta Arenas. • You will be required to complete and sign a COVID-19 Declaration prior to your departure. Antarctica ALE has developed COVID-19 management procedures for Antarctica. These will be covered in your briefings in Punta Arenas and on arrival at Union Glacier. Please visit our FAQ for more detailed information on ALE’s COVID-19 Management Strategy https:// bit.ly/3g5e4ql EMPERORS & EXPLORERS Experience two Antarctic icons in one action- WALK WITH packed adventure. Fly by ski aircraft to the Gould Bay Emperor Penguin Colony on the remote coast EMPERORS of the Weddell Sea. -
PDF-TITEL-AA-CHILE-EMPEORSADVENTURE Kopie.Pages
Antarktis Flug-Expeditionen EMPEROR PENGUINS Besuch der Kaiserpinguin-Kolonie in der Gould-Bucht ex Punta Arenas / Chile via Basecamp Union Glaciar POLARADVENTURES Schiffs- und Flug-Expeditionen in Arktis und Antarktis Reiseagentur Heinrich-Böll-Str. 40 * D-21335 Lüneburg * Deutschland Tel +49-4131- 223474 Fax +49-4131-54255 [email protected] www.polaradventures.de Saison 2021/22 Veranstalter Direkt-Angebote ab-bis Punta Arenas (Chile) für individuelle Planungen alle Abfahrten der Saison inkl. englischsprachiger Termine POLARADVENTURES Schiffs- und Flug-Expeditionen in Arktis und Antarktis Reiseagentur * Heinrich-Böll-Str. 40 * D-21335 Lüneburg * Deutschland Tel +49-4131- 223474 Fax +49-4131-54255 [email protected] www.polaradventures.de EMPEROR PENGUINS A PHOTOGRAPHER’S PARADISE Immerse yourself in the sights and sounds of the Gould Bay Emperor Penguin Colony on the remote coast of the Weddell Sea. Camp on the same sea ice where thousands of birds come to raise and feed their young. Photograph majestic emperors and their chicks against a spectacular backdrop of ice cliffs, pressure ridges, and icebergs. Spot petrels and seals amongst the endless white expanse. Fall asleep to a chorus of trumpeting calls and wake to find curious penguins outside your tent. Our remote field camp offers you unparalleled access to the emperors as you witness their amazing adaptations to the Antarctic environment alongside our expert guides. ITINERARY Arrival Day Punta Arenas, Chile Pre-departure Day Luggage Pick-Up & Briefing Day 1 Fly to Antarctica Day 2 Explore Union Glacier Day 3 Fly to Emperor Colony Day 4-6 Live with the Emperors Day 7 Return to Union Glacier Day 8 Explore Union Glacier Day 9 Return to Chile Flexible Departure Day Fly Home *Subject to change based on weather and flight conditions. -
S. Antarctic Projects Officer Bullet
S. ANTARCTIC PROJECTS OFFICER BULLET VOLUME III NUMBER 8 APRIL 1962 Instructions given by the Lords Commissioners of the Admiralty ti James Clark Ross, Esquire, Captain of HMS EREBUS, 14 September 1839, in J. C. Ross, A Voya ge of Dis- covery_and Research in the Southern and Antarctic Regions, . I, pp. xxiv-xxv: In the following summer, your provisions having been completed and your crews refreshed, you will proceed direct to the southward, in order to determine the position of the magnet- ic pole, and oven to attain to it if pssble, which it is hoped will be one of the remarka- ble and creditable results of this expedition. In the execution, however, of this arduous part of the service entrusted to your enter- prise and to your resources, you are to use your best endoavours to withdraw from the high latitudes in time to prevent the ships being besot with the ice Volume III, No. 8 April 1962 CONTENTS South Magnetic Pole 1 University of Miohigan Glaoiologioal Work on the Ross Ice Shelf, 1961-62 9 by Charles W. M. Swithinbank 2 Little America - Byrd Traverse, by Major Wilbur E. Martin, USA 6 Air Development Squadron SIX, Navy Unit Commendation 16 Geological Reoonnaissanoe of the Ellsworth Mountains, by Paul G. Schmidt 17 Hydrographio Offices Shipboard Marine Geophysical Program, by Alan Ballard and James Q. Tierney 21 Sentinel flange Mapped 23 Antarctic Chronology, 1961-62 24 The Bulletin is pleased to present four firsthand accounts of activities in the Antarctic during the recent season. The Illustration accompanying Major Martins log is an official U.S. -
Mid-Holocene Pulse of Thinning in the Weddell Sea Sector of the West Antarctic Ice Sheet
ARTICLE Received 9 Feb 2016 | Accepted 9 Jul 2016 | Published 22 Aug 2016 DOI: 10.1038/ncomms12511 OPEN Mid-Holocene pulse of thinning in the Weddell Sea sector of the West Antarctic ice sheet Andrew S. Hein1, Shasta M. Marrero1, John Woodward2, Stuart A. Dunning2,3, Kate Winter2, Matthew J. Westoby2, Stewart P.H.T. Freeman4, Richard P. Shanks4 & David E. Sugden1 Establishing the trajectory of thinning of the West Antarctic ice sheet (WAIS) since the last glacial maximum (LGM) is important for addressing questions concerning ice sheet (in)stability and changes in global sea level. Here we present detailed geomorphological and cosmogenic nuclide data from the southern Ellsworth Mountains in the heart of the Weddell Sea embayment that suggest the ice sheet, nourished by increased snowfall until the early Holocene, was close to its LGM thickness at 10 ka. A pulse of rapid thinning caused the ice elevation to fall B400 m to the present level at 6.5–3.5 ka, and could have contributed 1.4–2 m to global sea-level rise. These results imply that the Weddell Sea sector of the WAIS contributed little to late-glacial pulses in sea-level rise but was involved in mid-Holocene rises. The stepped decline is argued to reflect marine downdraw triggered by grounding line retreat into Hercules Inlet. 1 School of GeoSciences, University of Edinburgh, Drummond Street, Edinburgh EH8 9XP, UK. 2 Department of Geography, Northumbria University, Ellison Place, Newcastle upon Tyne NE1 8ST, UK. 3 School of Geography, Politics and Sociology, Newcastle University, Newcastle upon Tyne NE1 7RU, UK. -
Glaciological Investigations on Union Glacier, Ellsworth Mountains, West Antarctica
Annals of Glaciology 51(55) 2010 91 Glaciological investigations on Union Glacier, Ellsworth Mountains, West Antarctica Andre´s RIVERA,1,2,3 R. ZAMORA,1 Camilo RADA,1 Jonathan WALTON,4 Stuart PROCTOR5 1Centro de Estudios Cientı´ficos, Av. Arturo Prat 514, Casilla 1469, Valdivia, Chile E-mail: [email protected] 2Departamento de Geografı´a, Universidad de Chile, Portugal 84, Casilla 3387, Santiago, Chile 3Centro de la Ingenierı´a de la Innovacio´n del CECS (CIN), Av. Arturo Prat 514, Casilla 1469, Valdivia, Chile 4Antarctic Logistics and Expeditions (ALE), LLC 4376 South 700 East, Suite 226 Salt Lake City, UT 84107-3006, USA 5Topcon Europe Positioning B.V., Essebaan 11, Capelle aan den IJssel, 2908LJ, The Netherlands ABSTRACT. Union Glacier, West Antarctica, was intensively mapped in December 2008, when an over- snow traverse was conducted by CECS and ALE, with the aim to determine the ice-dynamical characteristics of the glacier, through mapping the crevasse fields and by providing a glaciological baseline for future studies. A mean ice thickness of 1450 m was measured, confirming the presence of a deep subglacial topography (~900 m below sea level), much deeper than previously estimated. Ice velocities were also measured at 21 stakes drilled into the ice at the narrowest gate of the glacier between December 2007 and December 2008, yielding a mean value of 22.6 m a–1. These velocities, combined with the measured ice thicknesses and a numerical model, yielded an ice flux of 0.10 Æ 0.03 km3 a–1 w.e. Considering the ice basin above this gate, a mean surface mass balance of 0.18 Æ 0.05 m a–1 was estimated, a value consistent with a mean snow accumulation for nearby ice streams. -
Mem170-Bm.Pdf by Guest on 30 September 2021 452 Index
Index [Italic page numbers indicate major references] acacamite, 437 anticlines, 21, 385 Bathyholcus sp., 135, 136, 137, 150 Acanthagnostus, 108 anticlinorium, 33, 377, 385, 396 Bathyuriscus, 113 accretion, 371 Antispira, 201 manchuriensis, 110 Acmarhachis sp., 133 apatite, 74, 298 Battus sp., 105, 107 Acrotretidae, 252 Aphelaspidinae, 140, 142 Bavaria, 72 actinolite, 13, 298, 299, 335, 336, 339, aphelaspidinids, 130 Beacon Supergroup, 33 346 Aphelaspis sp., 128, 130, 131, 132, Beardmore Glacier, 429 Actinopteris bengalensis, 288 140, 141, 142, 144, 145, 155, 168 beaverite, 440 Africa, southern, 52, 63, 72, 77, 402 Apoptopegma, 206, 207 bedrock, 4, 58, 296, 412, 416, 422, aggregates, 12, 342 craddocki sp., 185, 186, 206, 207, 429, 434, 440 Agnostidae, 104, 105, 109, 116, 122, 208, 210, 244 Bellingsella, 255 131, 132, 133 Appalachian Basin, 71 Bergeronites sp., 112 Angostinae, 130 Appalachian Province, 276 Bicyathus, 281 Agnostoidea, 105 Appalachian metamorphic belt, 343 Billingsella sp., 255, 256, 264 Agnostus, 131 aragonite, 438 Billingsia saratogensis, 201 cyclopyge, 133 Arberiella, 288 Bingham Peak, 86, 129, 185, 190, 194, e genus, 105 Archaeocyathidae, 5, 14, 86, 89, 104, 195, 204, 205, 244 nudus marginata, 105 128, 249, 257, 281 biogeography, 275 parvifrons, 106 Archaeocyathinae, 258 biomicrite, 13, 18 pisiformis, 131, 141 Archaeocyathus, 279, 280, 281, 283 biosparite, 18, 86 pisiformis obesus, 131 Archaeogastropoda, 199 biostratigraphy, 130, 275 punctuosus, 107 Archaeopharetra sp., 281 biotite, 14, 74, 300, 347 repandus, 108 Archaeophialia, -
A Very Short Guide to Union Glacier Camp
FOR STUDENTS A VERY SHORT GUIDE TO UNION GLACIER CAMP DIRECTORS Temujin Doran If you’re considering an expedition to Antarctica, here is a jaunty preview of your likely base DURATION 5 mins camp. Looks like fun! Not to mention beautiful and energetically staffed. Standards COMMON CORE ANCHOR STANDARDS FOR READING CCSS.ELA-LITERACY.CCRA.R.1 / Key Ideas and Details Read closely to determine what the text says explicitly and to make logical inferences from it; cite specific textual evidence when writing or speaking to support conclusions drawn from the text. CCSS.ELA-LITERACY.CCRA.R.2 / Key Ideas and Details Determine central ideas or themes of a text and analyze their development; summarize the key supporting details and ideas. CCSS.ELA-LITERACY.CCRA.R.7 / Integration of Knowledge and Ideas Integrate and evaluate content presented in diverse media and formats, including visually and quantitatively, as well as in words. CCSS.ELA-LITERACY.CCRA.R.8 / Integration of Knowledge and Ideas Delineate and evaluate the argument and specific claims in a text, including the validity of the reasoning as well as the relevance and sufficiency of the evidence. COMMON CORE ANCHOR STANDARDS FOR WRITING CCSS.ELA-LITERACY.CCRA.W.7 / Research to Build and Present Knowledge Conduct short as well as more sustained research projects based on focused questions, demonstrating understanding of the subject under investigation. CCSS.ELA-LITERACY.CCRA.W.9 / Research to Build and Present Knowledge Draw evidence from literary or informational texts to support analysis, reflection, and research. Themes Antarctica, fun, exploration Key Vocabulary camp, glacier, explorer 2 / A VERY SHORT GUIDE TO UNION GLACIER CAMP Pre-Screening Activity Grades K-2 & 3-6 Located in the Southern Ellsworth Mountains on the Union Glacier, Union Glacier Camp is the only one of it’s kind on the continent of Antarctica. -
Brought to You by TDA Global Cycling
The Last Degree Brought to you by TDA Global Cycling TDA GLOBAL CYCLING Price and Dates The final price will be announced in January 2016. You can expect it to be in the range of $65,000 - $75,000 USD. Depending on how many people join, we will offer one or more of these three departures: 1. Starting early December 2016 2. Starting late December 2016 (finishes early January 2017) 3. Starting early January 2017 The expedition from start to finish is anticipated to be 18 days. This is from the time the group first meets in Punta Arenas, Chile until the time they return there after the Last Degree expedition. Participants should have an open ended return ticket to their country of origin as a 7 day buffer may be needed for this expedition. What’s Included: • 18 days itinerary with support and guidance from a Certified Polar Guide from our partners ALE (see the ‘Who is ALE?’ FAQ question below) • 5 nights’ hotel accommodation in Punta Arenas (4 nights before and 1 night after Antarctica) • 2016 model Fat bikes (your’s to keep) provided by Specialized • Jacket (your’s to keep) provided by Canada Goose • Return flight from Punta Arenas, Chile to the Antarctic base camp at Union Glacier • A shared drop-off flight from Union Glacier to 89°South (at the Last Degree) by Twin Otter • A shared flight from the South Pole back to base camp by Twin Otter • All meals and accommodations at Union Glacier base camp • All food from 89°South drop-off point until the South Pole (mostly freeze dried meals) • Shared tents, camp stoves, cooking fuel • Detailed -
1 Compiled by Mike Wing New Zealand Antarctic Society (Inc
ANTARCTIC 1 Compiled by Mike Wing US bulldozer, 1: 202, 340, 12: 54, New Zealand Antarctic Society (Inc) ACECRC, see Antarctic Climate & Ecosystems Cooperation Research Centre Volume 1-26: June 2009 Acevedo, Capitan. A.O. 4: 36, Ackerman, Piers, 21: 16, Vessel names are shown viz: “Aconcagua” Ackroyd, Lieut. F: 1: 307, All book reviews are shown under ‘Book Reviews’ Ackroyd-Kelly, J. W., 10: 279, All Universities are shown under ‘Universities’ “Aconcagua”, 1: 261 Aircraft types appear under Aircraft. Acta Palaeontolegica Polonica, 25: 64, Obituaries & Tributes are shown under 'Obituaries', ACZP, see Antarctic Convergence Zone Project see also individual names. Adam, Dieter, 13: 6, 287, Adam, Dr James, 1: 227, 241, 280, Vol 20 page numbers 27-36 are shared by both Adams, Chris, 11: 198, 274, 12: 331, 396, double issues 1&2 and 3&4. Those in double issue Adams, Dieter, 12: 294, 3&4 are marked accordingly. Adams, Ian, 1: 71, 99, 167, 229, 263, 330, 2: 23, Adams, J.B., 26: 22, Adams, Lt. R.D., 2: 127, 159, 208, Adams, Sir Jameson Obituary, 3: 76, A Adams Cape, 1: 248, Adams Glacier, 2: 425, Adams Island, 4: 201, 302, “101 In Sung”, f/v, 21: 36, Adamson, R.G. 3: 474-45, 4: 6, 62, 116, 166, 224, ‘A’ Hut restorations, 12: 175, 220, 25: 16, 277, Aaron, Edwin, 11: 55, Adare, Cape - see Hallett Station Abbiss, Jane, 20: 8, Addison, Vicki, 24: 33, Aboa Station, (Finland) 12: 227, 13: 114, Adelaide Island (Base T), see Bases F.I.D.S. Abbott, Dr N.D. -
Discover Antarctica
Discover Antarctica TRIP OVERVIEW Experience an immense world of stunning beauty in the heart of Antarctica from the comfort of a specially built camp located on the Union glacier. Choose from gentle walks across waves of blue-ice, excursions in a specially-adapted 4x4 van, wandering through the Elephant Head valley with its frozen ice pools and unusual rock formations, exploring ancient rock terraces at the ‘beach’, picnicking in hidden canyons, gazing out from the summit of Charles Peak over the broad expanse of Union Glacier and many many more. If you’re looking for excitement, choose from a range of adrenaline-charged activities from ice climbing in ancient crevasses and cross country skiing to more technical climbs or even a mini-overnight expedition. In camp there are Antarctic skills sessions and talks. Learn about polar navigation and communications or challenge yourself on a GPS course. Our experienced guides have a wealth of knowledge and visiting scientists often give talks on their latest Antarctic research. Or, simply relax in our heated multi-purpose tent with a book or DVD from our library. The highlight of this experience is a spectacular sightseeing flight along the spine of the Ellsworth Mountains, giving you a bird’s-eye view over the mountains and rocky exposed nunataks that peek out from the permanent ice sheet below. Participation Statement Adventure Peaks recognises that climbing, hill walking and mountaineering are activities with a danger of personalinjury or death. Participants in these activities should be aware of and accept these risks and be responsible for their own actions and involvement. -
Ellsworth Mountains, Overview Antarctica Mt
AAC Publications Ellsworth Mountains, Overview Antarctica Mt. Vinson (4,892m) continues to attract large numbers. One hundred and seventy individual climbers reached the summit during the 2012-13 season (a total of 184 successful ascents). Fourteen guides made two or more ascents. Only four clients failed to top out. Neighboring Mt. Shinn (4,660m) received five ascents. American guide Robert Anderson and his clients did the probable first ascent of a 2,880m peak five kilometers south of Vinson base camp. This attractive ice peak forms a pyramidal end to the ridge dividing the Cairns and Tulaczyk glaciers, the unclimbed southern arm of the western ridge of the Vinson Massif. In late December, Antarctic Logistics & Expeditions (ALE) guides Maria Paz “Pachi” Ibarra and Todd Passey led the returning German client Ralf Laier on the first ascents of three peaks: Mt. Allen (3,430m) and Mt. Liptak (3,052m) in the southern Sentinel Range, and Robinson Peak (2,038m) further south in the Heritage Range. Allen was climbed from the south, ending in a difficult corniced ridge, and took two attempts. Liptak had a mixed summit ridge of loose rock, after steep snow and ice on the northern slope. Robinson Peak, a rocky summit in the Pioneer Heights Range, was approached from the west, across the Rennell Glacier, and then climbed by the south ridge, with some technical rock pitches and exposed scrambling. The trio traversed the summit to the northern side, and traveled back around the east to reach their skis on the southern col. Further south, in the Independence Hills, Scott Webster and friends made the first ascent of an elegangt unnamed ice peak north of Beitzel Peak and just south of the famous Minaret Peak, a distinctive rock tower visible to all who flew out of the old ANI base at Patriot Hills.