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Ferraccioli Etal2008.Pdf
Tectonophysics 478 (2009) 43–61 Contents lists available at ScienceDirect Tectonophysics journal homepage: www.elsevier.com/locate/tecto Magmatic and tectonic patterns over the Northern Victoria Land sector of the Transantarctic Mountains from new aeromagnetic imaging F. Ferraccioli a,⁎, E. Armadillo b, A. Zunino b, E. Bozzo b, S. Rocchi c, P. Armienti c a British Antarctic Survey, Cambridge, UK b Dipartimento per lo Studio del Territorio e delle Sue Risorse, Università di Genova, Genova, Italy c Dipartimento di Scienze della Terra, Università di Pisa, Pisa, Italy article info abstract Article history: New aeromagnetic data image the extent and spatial distribution of Cenozoic magmatism and older Received 30 January 2008 basement features over the Admiralty Block of the Transantarctic Mountains. Digital enhancement Received in revised form 12 November 2008 techniques image magmatic and tectonic features spanning in age from the Cambrian to the Neogene. Accepted 25 November 2008 Magnetic lineaments trace major fault zones, including NNW to NNE trending transtensional fault systems Available online 6 December 2008 that appear to control the emplacement of Neogene age McMurdo volcanics. These faults represent splays from a major NW–SE oriented Cenozoic strike-slip fault belt, which reactivated the inherited early Paleozoic Keywords: – Aeromagnetic anomalies structural architecture. NE SW oriented magnetic lineaments are also typical of the Admiralty Block and fl Transantarctic Mountains re ect post-Miocene age extensional faults. To re-investigate controversial relationships between strike-slip Inheritance faulting, rifting, and Cenozoic magmatism, we combined the new aeromagnetic data with previous datasets Cenozoic magmatism over the Transantarctic Mountains and Ross Sea Rift. -
Inspire Antarctica Expedition (Iae) 2011 March 3-18, 2011
INSPIRE ANTARCTICA EXPEDITION (IAE) 2011 MARCH 3-18, 2011 RECYCLING COUNCIL OF ALBERTA OCTOBER 7, 2011 PRESENTED BY: GAVIN SCOTT & TYLER BARKHOUSE Who is Robert Swan and why the heck did we go all the way to Antarctica to meet him?? WHAT IS 2041? • Organization created by Robert Swan, OBE • Global mission to help reduce environmental damage through global and local initiatives The Mission of 2041 is to: TO CHALLENGE INDUSTRY & BUSINESS TO USE CLEANER ENERGY AND INSPIRE CHAMPIONS WITHIN ORGANISATIONS TO CARRY THE MESSAGE FORWARDS Linking Leadership with Sustainability Signatories on the Antarctic Treaty GLOBAL MISSION ACCOMPLISHED 1500 TONS OF SOLID WASTE REMOVED JAN 2002 10 Things Most People (Including Us) Didn’t Know About Antarctica: 1. It’s a CONTINENT – not a country (ok we knew that) 2. It is 1.7 times the size of Australia 3. It contains 90% of the world ice…. 4. … and 70% of the world’s freshwater 5. 180 million years ago, Antarctica was attached to South America… and was tropical! 10 Things Most People (Including Us) Didn’t Know about Antarctica: 6. Three major oceans, (Atlantic, Indian and Pacific) merge in a 40 km strip on the outer edge of Antarctica 7. If all of the ice in Antarctica melted, sea levels would rise between 50 and 60 m. 8. Antarctica is the coldest, windiest, and driest place on earth . In some places like the Dry Valleys, it has not rained for thousands of years. 10 Things Most People (Including Us) Didn’t Know about Antarctica: 9. The ozone hole above Antarctica covers 27 million km2. -
USGS Open-File Report 2007-1047, Short Research Paper 075, 4 P.; Doi: 10.3133/Of2007-1047.Srp075
U.S. Geological Survey and The National Academies; USGS OF-2007-1047, Short Research Paper 075, doi:10.3133/of2007-1047.srp075 Aeromagnetic search for Cenozoic magmatism over the Admiralty Mountains Block (East Antarctica) 1 2 3 4 5 6 E. Armadillo, F. Ferraccioli, A. Zunino, E. Bozzo, S. Rocchi, and P. Armienti 1Dipartimento per lo Studio del Territorio e delle Sue Risorse, Università di Genova, V.le Benedetto XV 5,16132 Genova, Italy ([email protected]) 2British Antarctic Survey, High Cross, Madingley Road, Cambridge CB3 OET, UK ([email protected]) 3Dipartimento per lo Studio del Territorio e delle Sue Risorse, Università di Genova, V.le Benedetto XV 5,16132 Genova, Italy ([email protected]) 4Dipartimento per lo Studio del Territorio e delle Sue Risorse, Università di Genova, V.le Benedetto XV 5,16132 Genova, Italy ([email protected]) 5Dipartimento di Scienze della Terra, Università di Pisa, Via di S. Maria 53-56126, Pisa, Italy ([email protected]) 6Dipartimento di Scienze della Terra, Università di Pisa, Via di S. Maria 53-56126, Pisa, Italy ([email protected]) Abstract Cenozoic magmatic rocks of the Transantarctic Mountains provide an important window on the tectonic and magmatic processes of the West Antarctic Rift System. Previous aeromagnetic investigations in northern Victoria Land have delineated Cenozoic volcanic and intrusive complexes assigned to the McMurdo Volcanic Group and Meander Intrusives over the Transantarctic Mountains. We present a new aeromagnetic anomaly map for the region north of the Mariner Glacier to study the extent and spatial distribution of these Cenozoic rocks over the previously unexplored Admiralty Mountains. -
Species Status Assessment Emperor Penguin (Aptenodytes Fosteri)
SPECIES STATUS ASSESSMENT EMPEROR PENGUIN (APTENODYTES FOSTERI) Emperor penguin chicks being socialized by male parents at Auster Rookery, 2008. Photo Credit: Gary Miller, Australian Antarctic Program. Version 1.0 December 2020 U.S. Fish and Wildlife Service, Ecological Services Program Branch of Delisting and Foreign Species Falls Church, Virginia Acknowledgements: EXECUTIVE SUMMARY Penguins are flightless birds that are highly adapted for the marine environment. The emperor penguin (Aptenodytes forsteri) is the tallest and heaviest of all living penguin species. Emperors are near the top of the Southern Ocean’s food chain and primarily consume Antarctic silverfish, Antarctic krill, and squid. They are excellent swimmers and can dive to great depths. The average life span of emperor penguin in the wild is 15 to 20 years. Emperor penguins currently breed at 61 colonies located around Antarctica, with the largest colonies in the Ross Sea and Weddell Sea. The total population size is estimated at approximately 270,000–280,000 breeding pairs or 625,000–650,000 total birds. Emperor penguin depends upon stable fast ice throughout their 8–9 month breeding season to complete the rearing of its single chick. They are the only warm-blooded Antarctic species that breeds during the austral winter and therefore uniquely adapted to its environment. Breeding colonies mainly occur on fast ice, close to the coast or closely offshore, and amongst closely packed grounded icebergs that prevent ice breaking out during the breeding season and provide shelter from the wind. Sea ice extent in the Southern Ocean has undergone considerable inter-annual variability over the last 40 years, although with much greater inter-annual variability in the five sectors than for the Southern Ocean as a whole. -
British Team to Head to Antarctica to Complete Captain Scott's Terra
STRICTLY UNDER EMBARGO UNTIL WED 5 JUNE, 2013, 11.00 (GMT – London) MEDIA RELEASE, 5 June 2013 British Team To Head to Antarctica to Complete Captain Scott’s Terra Nova Expedition • Two Brits to honour the legacy of iconic British explorer, Captain Robert Falcon Scott by setting out to complete his ill-fated Terra Nova expedition for the first time, more than 100 years after it was first attempted. • The Scott Expedition will be the longest unsupported polar journey in history and a landmark expedition in terms of technical innovation • The expedition will depart in October 2013 On the eve of Captain Robert Falcon Scott’s birthday, two British polar explorers Ben Saunders and Tarka L’Herpiniere, in partnership with Intel and Land Rover today announced their intention to depart in October 2013 to complete Scott’s ill-fated 1910-1912 Terra Nova expedition – an unsupported return journey from the edge of Antarctica to the South Pole. Historically significant, it will be the first time in more than 100 years that Scott’s journey has been attempted and is being undertaken under the patronage of Scott’s grandson, Falcon Scott. At 1,800 miles (equivalent to 69 back-to-back marathons) it will be the longest unsupported polar journey in history and set a new benchmark in terms of expedition technology. Ben and Tarka will use new 4th Generation Intel® Core™ Processor technology to upload videos, photos, blogs and key data in near real-time as the trip progresses. The expedition will also have its own YouTube channel (www.youtube.com/scottexpedition). -
2019 Weddell Sea Expedition
Initial Environmental Evaluation SA Agulhas II in sea ice. Image: Johan Viljoen 1 Submitted to the Polar Regions Department, Foreign and Commonwealth Office, as part of an application for a permit / approval under the UK Antarctic Act 1994. Submitted by: Mr. Oliver Plunket Director Maritime Archaeology Consultants Switzerland AG c/o: Maritime Archaeology Consultants Switzerland AG Baarerstrasse 8, Zug, 6300, Switzerland Final version submitted: September 2018 IEE Prepared by: Dr. Neil Gilbert Director Constantia Consulting Ltd. Christchurch New Zealand 2 Table of contents Table of contents ________________________________________________________________ 3 List of Figures ___________________________________________________________________ 6 List of Tables ___________________________________________________________________ 8 Non-Technical Summary __________________________________________________________ 9 1. Introduction _________________________________________________________________ 18 2. Environmental Impact Assessment Process ________________________________________ 20 2.1 International Requirements ________________________________________________________ 20 2.2 National Requirements ____________________________________________________________ 21 2.3 Applicable ATCM Measures and Resolutions __________________________________________ 22 2.3.1 Non-governmental activities and general operations in Antarctica _______________________________ 22 2.3.2 Scientific research in Antarctica __________________________________________________________ -
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. -
The Antarctic Crustal Profile Seismic Project, Ross Sea, Antarctica ALAN K
200,000 years are obviously affected to a lesser degree than argon (40Ar) to excess argon (40ArE) and are, therefore, taken younger samples containing a lower proportion of radiogenic to be a truer representation of the actual age of that particu- _______________________ lar sample. Still, it must be noted that all the 40Ar/ 39Ar ages pro- 40Ar139Ar ages for Mount Erebus as determined in this study duced from Mount Erebus are maximum ages owing to the uncertainty of complete removal (through sample preparation) of all excess argon. 48±9a Excess argon—Too Old Summit phenocrysts Evaluation of these new data Summit phenocrysts -10 179±16a Excess argon—Too Old Summit phenocrysts #2 49±27a Excess argon—Too Old is still in progress; however, it is Summit phenocrysts #2 30-40 641±27a Excess argon—Too Old apparent that our new age deter- Summit (bomb) glass 100 101±16a Excess argon—Too Old minations are significantly Lower Hut flow <1 24±4b Acceptable younger than those previously Three Sisters cones -4 26±2b Acceptable obtained by the conventional Three Sisters cones 11 1±8b Contamination? K/Ar method. The evolution and 36±4 Hoopers Shoulder <1 b Acceptable growth of Mount Erebus may Hoopers Shoulder cone 32±5b Acceptable have been much faster than pre- a Hoopers Shoulder cone -5 94±15 Excess argon viously thought. 42±4b Contamination? Cape Evans This research was supported Cape Evans -5 32±6b Acceptable Cape Royds -2 735b Acceptable by National Science Foundation Cape Royds -20 153±32a Excess argon grant OPP 91-18056. -
The Collembola of Antarctica1
Pacific Insects Monograph 25: 57-74 20 March 1971 THE COLLEMBOLA OF ANTARCTICA1 By K. A. J. Wise2 Abstract: Subsequent to an earlier paper on Antarctic Collembola, further references and specimen locality records are given, and a new classification is used. Named species and definite distributions are combined in a definitive list of the Collembola of Antarctica. One new synonymy. Hypogastrura viatica (=H. antarctica), is recorded. Collections additional to those reported by Wise (1967) are recorded here, together with further information on some of the species, including one new synonymy. References in the synonymic lists are only those additional to the ones published in my previous paper. As in that paper, S. Orkney Is. and S. Sandwich Is. records are included here, but are excluded from the list of species in Antarctica. In addition to the Bishop Museum collections, specimens from collections of other institutions are recorded as follows: U.S. National Museum, Smithsonian Institution (USNM), British Museum (Nat. Hist.) (BMNH), British Antarctic Survey Biological Unit (BAS), and Canterbury University Antarctic Biology Unit (CUABU). The arrangement of figures and legends are as in Wise (1967). In specimen data a figure at the beginning of a group is the number of micro-slide specimens; a figure at the end, after the col lector's name, is the collector's site number. Classification Classification of the Antarctic species previously (Wise 1967) followed that of Salmon (1964) which radically changed some of the earlier classifications, separating some of the Suborder Arthropleona as distinct families in a new suborder, Neoarthropleona. Since then, Massoud (1967) has published a sound revision of the Neanuridae, in which he has sunk the Suborder Neoarthro pleona establishing the families recorded therein by Salmon as subfamilies or tribes in the Family Neanuridae. -
US Antarctic Program Information Exchange
Information Exchange Under United States Antarctic Activities Articles III and VII (5) of the Modifications of Activities Planned for 2004-2005 ANTARCTIC TREATY X. Tourism X. Tourism Section X presents planned itineraries for U.S. based non- governmental activities in the Treaty area. Abercrombie & Kent International, Inc. Atholl Shipping Corporation and Abercrombie & Kent International, Inc. of Oak Brook, Illinois, conducted a total of ten cruises to the Antarctic Peninsula during the 2004-2005 season using the M/S Explorer II. Given below, for each cruise, is the port of origin, and sites visited (with dates) M/S EXPLORER Cruise EXP16NOV2004 November 2004 94 PAX; 145 STAFF; 162 CREW # PAX 1 Ports Landed Dates Montevideo, URUGUAY 16 NOV 2004 At sea 17-20 NOV 2004 Point Wild, Elephant Island 21 NOV 2004 Esperanza Station, Hope Bay 99 22 NOV 2004 James Ross Island 89* 23 NOV 2004 Vortex Island 106 23 NOV 2004 Paulet Island 114 24 NOV 2004 Brown Bluff, Tabarin Peninsula 87 24 NOV 2004 National Science Foundation 23 Arlington, Virginia 22230 October 1, 2005 Information Exchange Under United States Antarctic Activities Articles III and VII (5) of the Modifications of Activities Planned for 2004-2005 ANTARCTIC TREATY X. Tourism Hannah Point, Livingston Island 84 25 NOV 2004 Whalers Bay, Deception Island 108 25 NOV 2004 At sea 26-27 NOV 2004 Ushuaia, ARGENTINA 28 NOV 2004 1 = Includes passengers, staff and crew landed * = zodiac cruising only Cruise EXP28NOV 2004 November/December 2004 207 PAX; 13 STAFF; 159 CREW # PAX 1 Ports Landed Dates Ushuaia, -
Chemical and Isotopic Snow Variability in East Antarctica Along the 2001/02 ITASE Traverse
Annals of Glaciology 39 2004 473 Chemical and isotopic snow variability in East Antarctica along the 2001/02 ITASE traverse Silvia BECAGLI,1 Marco PROPOSITO,2,4 Silvia BENASSAI,1 Onelio FLORA,3 Laura GENONI,3 Roberto GRAGNANI,4 Ombretta LARGIUNI,1 Simone Luca PILI,4,5 Mirko SEVERI,1 Barbara STENNI,3 Rita TRAVERSI,1 Roberto UDISTI,1 Massimo FREZZOTTI4 1Chemistry Department – Analytical Chemistry, Scientific Pole, University of Florence, Via della Lastruccia 3, I-50019 Sesto Fiorenti (Florence) Italy E-mail: [email protected] 2Museo Nazionale dell’Antartide, Strada del Laterino 8, I-53100 Siena, Italy 3Department of Geological, Environmental and Marine Sciences, University of Trieste, Via E. Weiss 2, 1-34127, Trieste, Italy 4ENEA, Centro Ricerche, Casaccia, PO Box 2400, I-00100 Rome, Italy 5Department of Earth Science, University of Cagliari, Via Trentino 51, 1-09127 Cagliari, Italy ABSTRACT. As part of the International Trans-Antarctic Scientific Expedition (ITASE) project, a traverse was carried out from November 2001 to January 2002 through Terre Ade´lie, George V Land, Oates Land and northern Victoria Land, for a total length of about 1875 km. The research goal is to determine the latitudinal and longitudinal variability of physical, chemical and isotopic parameters along three transects: one west–east transect (WE), following the 2150 m contour line (about 400 km inland of the Ade´lie, George V and Oates coasts), and two north–south transects (inland Terre Ade´lie and Oates Coast–Talos Dome–Victoria Land). The intersection between the WE and Oates Coast–Victoria Land transects is in the Talos Dome area. -
Recent Extension Driven by Mantle Upwelling Beneath the Admiralty Mountains (East Antarctica)
TECTONICS, VOL. 27, XXXXXX, doi:10.1029/2007TC002197, 2008 Click Here for Full Article 2 Recent extension driven by mantle upwelling beneath the 3 Admiralty Mountains (East Antarctica) 1 1 2 3 4 Claudio Faccenna, Federico Rossetti, Thorsten W. Becker, Stefania Danesi, 3 5 and Andrea Morelli 6 Received 10 August 2007; revised 4 April 2008; accepted 17 June 2008; published XX Month 2008. 8 [1] Northern Victoria Land is located at the boundary structed by subsidence and uplift history, is commonly 47 9 between an extended, presumably hot, region (West considered polyphased, involving an early Cretaceous phase 48 10 Antarctic Rift System) and the thick, possibly cold, linked to the Gondwana breakup followed by a major 49 11 East Antarctic craton. The style and timing of Tertiary Cenozoic one [e.g., Cooper et al., 1997; Behrendt et al., 50 12 deformation along with relationships with the 1991; Tessensohn and Wo¨rner, 1991; Lawver and Gahagan, 51 1994; Davey and Brancolini, 1995; Salvini et al., 1997; 52 13 magmatic activity are still unclear, and contrasting Behrendt, 1999; Cande et al., 2000; Mukasa and Dalziel, 53 14 models have been proposed. We performed structural 2000; Cande and Stock, 2004]. 54 15 and morphotectonic analyses at the NE termination of [3] There are two outstanding questions concerning the 55 16 northern Victoria Land in the Admiralty Mountains kinematic and tectonic evolution of the Cenozoic tectonic 56 17 area, where the relationship between topography, episode in the WARS. First, the pattern of deformation 57 18 tectonics, and magmatism is expected to be well changes abruptly moving from Victoria Land to the western 58 19 pronounced.