Highest Temperature Recorded in Antarctica
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Depositional Settings of the Basal López De Bertodano Formation, Maastrichtian, Antarctica
Revista de la Asociación Geológica Argentina 62 (4): 521-529 (2007) 521 DEPOSITIONAL SETTINGS OF THE BASAL LÓPEZ DE BERTODANO FORMATION, MAASTRICHTIAN, ANTARCTICA Eduardo B. OLIVERO1, Juan J. PONCE1, Claudia A. MARSICANO2, and Daniel R. MARTINIONI1 ¹ Laboratorio de Geología Andina, CADIC-CONICET, B. Houssay 200, CC 92, 9410 Ushuaia, Tierra del Fuego, Argentina. E-Mail: [email protected] 2 Dpto. Cs. Geológicas, Universidad Buenos Aires, Ciudad Universitaria Pab. II, C1428 DHE Buenos Aires. ABSTRACT: In Snow Hill and Seymour islands the lower Maastrichtian, basal part of the López de Bertodano Formation, rests on a high relief, erosi- ve surface elaborated in the underlying Snow Hill Island Formation. Mudstone-dominated beds with inclined heterolithic stratification dominate the basal strata of the López de Bertodano Formation. They consist of rhythmical alternations of friable sandy- and clayey- mudstone couplets, with ripple cross lamination, mud drapes, and flaser bedding. They are characterized by a marked lenticular geometry, reflecting the filling of tide-influenced channels of various scales and paleogeographic positions within a tide-dominated embayment or estuary. Major, sand-rich channel fills, up to 50-m thick, bounded by erosive surfaces probably represent inlets, located on a more central position in the estuary. Minor channel fills, 1- to 3-m thick, associated with offlapping packages with inclined heterolithic stratification pro- bably represent the lateral accretion of point bars adjacent to migrating tidal channels in the upper estuary. Both types of channel fills bear relatively abundant marine fauna, are intensively bioturbated, and are interpreted as a network of subtidal channels. In southwestern Snow Hill Island, the minor offlapping packages have scarce marine fossils and bear aligned depressions interpreted as poor preserved dinosaur footprints. -
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. -
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. -
A NTARCTIC Southpole-Sium
N ORWAY A N D THE A N TARCTIC SouthPole-sium v.3 Oslo, Norway • 12-14 May 2017 Compiled and produced by Robert B. Stephenson. E & TP-32 2 Norway and the Antarctic 3 This edition of 100 copies was issued by The Erebus & Terror Press, Jaffrey, New Hampshire, for those attending the SouthPole-sium v.3 Oslo, Norway 12-14 May 2017. Printed at Savron Graphics Jaffrey, New Hampshire May 2017 ❦ 4 Norway and the Antarctic A Timeline to 2006 • Late 18th Vessels from several nations explore around the unknown century continent in the south, and seal hunting began on the islands around the Antarctic. • 1820 Probably the first sighting of land in Antarctica. The British Williams exploration party led by Captain William Smith discovered the northwest coast of the Antarctic Peninsula. The Russian Vostok and Mirnyy expedition led by Thaddeus Thadevich Bellingshausen sighted parts of the continental coast (Dronning Maud Land) without recognizing what they had seen. They discovered Peter I Island in January of 1821. • 1841 James Clark Ross sailed with the Erebus and the Terror through the ice in the Ross Sea, and mapped 900 kilometres of the coast. He discovered Ross Island and Mount Erebus. • 1892-93 Financed by Chr. Christensen from Sandefjord, C. A. Larsen sailed the Jason in search of new whaling grounds. The first fossils in Antarctica were discovered on Seymour Island, and the eastern part of the Antarctic Peninsula was explored to 68° 10’ S. Large stocks of whale were reported in the Antarctic and near South Georgia, and this discovery paved the way for the large-scale whaling industry and activity in the south. -
1 Inhabiting the Antarctic Jessica O'reilly & Juan Francisco Salazar
Inhabiting the Antarctic Jessica O’Reilly & Juan Francisco Salazar Introduction The Polar Regions are places that are part fantasy and part reality.1 Antarctica was the last continent to be discovered (1819–1820) and the only landmass never inhabited by indigenous people.2 While today thousands of people live and work there at dozens of national bases, Antarctica has eluded the anthropological imagination. In recent years, however, as anthropology has turned its attention to extreme environments, scientific field practices, and ethnographies of global connection and situated globalities, Antarctica has become a fitting space for anthropological analysis and ethnographic research.3 The idea propounded in the Antarctic Treaty System—that Antarctica is a place of science, peace, environmental protection, and international cooperation—is prevalent in contemporary representations of the continent. Today Antarctic images are negotiated within a culture of global environmentalism and international science. Historians, visual artists, and journalists who have spent time in the Antarctic have provided rich accounts of how these principles of global environmentalism and 1 See for instance Adrian Howkins, The Polar Regions: An Environmental History (Cambridge, UK: Polity, 2016). 2 Archaeological records have shown evidence of human occupation of Patagonia and the South American sub-Antarctic region (42˚S to Cape Horn 56˚S) dating back to the Pleistocene–Holocene transition (13,000–8,000 years before present). The first human inhabitants south of 60˚S were British, United States, and Norwegian whalers and sealers who originally settled in Antarctic and sub-Antarctic islands during the early 1800s, often for relatively extended periods of time, though never permanently 3 See for instance Jessica O’Reilly, The Technocratic Antarctic: An Ethnography of Scientific Expertise and Environmental Governance (Ithaca, NY: Cornell University Press, 2017); Juan Francisco Salazar, “Geographies of Place-making in Antarctica: An Ethnographic Approach,” The Polar Journal 3, no. -
Numbers of Adelie Penguins Breeding at Hope Bay and Seymour Island Rookeries (West Antarctica) in 1985
POLISH POLAR RESEARCH (POL. POLAR RES.) 8 4 411—422. 1987 Andrzej MYRCHA", Andrzej TATUR2» and Rodolfo del VALLE3) " Institute of Biology, Warsaw University, Branch in Białystok, 64 Sosnowa. 15-887 Białystok, POLAND 2) Department of Biogeochemistry, Institute of Ecology, Polish Academy of Sciences, Dziekanów Leśny. 05-092 Łomianki. POLAND 31 Instituto Antarctico Ąrgcntino, Cerrito 1248. Capital Federal, ARGENTINA Numbers of Adelie penguins breeding at Hope Bay and Seymour Island rookeries (West Antarctica) in 1985 ABSTRACT: At the turn of October 1985, the abundance of breeding Adelie penguins was estimated at the Hope Bay oasis on the Antarctic Peninsula and on Seymour Island. In the Hope Bay rookery, 123850 pairs of penguins were recorded, beginning their breeding at the end of October. Data so far obtained indicate a continuous increase in the number of birds sat this rookery. On the other hand, the Seymour Island colony consisted of 21954 pairs of Adelie penguins. Clear differences in the geomorphological structure of areas occupied by penguins in those two places are discussed. No gentoo penguins were detected in either of the colonies. Key words: Antarctica. Hope Bay, Seymour Island, Adelie penguins. 1. Introduction Birds occurring in south polar regions for long have attracted much attention due to their importance in the functioning of the marine Antarctic ecosystem. The great abundance of these few species makes them play a significant role in the economy of energy of the Southern Ocean (Croxall 1984, Laws 1985). Among these birds penguins are dominant, comprising over 90% of the bird biomass in this region. The Adelie penguins, in turn, are one of the most numerous of the Antarctic species. -
Analysis and Prediction of Changes in the Temperature of the Pure Freshwater Ice Column in the Antarctic and the Arctic
Analysis and prediction of changes in the temperature of the pure freshwater ice column in the Antarctic and the Arctic A.A. Fedotov, V.V. Kaniber, P.V. Khrapov Abstract – This paper investigates the initial boundary value problem for a non-stationary one-dimensional heat equation that simulates the temperature distribution in freshwater ice near the Earth's poles. The mathematical model has been constructed taking into account solid-liquid phase transitions. Data from meteorological stations were used to determine the model parameters, with the help of which the necessary physical and thermophysical characteristics of the computational domain were obtained. For the numerical solution of the problem, the finite volume method (FVM) was used. In order to analyze changes in the temperature field of ice and determine the time required to reach a non-stationary periodic regime, graphs of temperature versus depth were plotted for January at two stations. The study of the results showed that it takes about 50 years of modeling with constant initial data for the temperature of an ice layer up to 20 m deep to reach the periodic regime. For the obtained periodic regime, the temperature versus depth dependences for each month were plotted, and the depth of the active layer, as well as the depth of zero annual amplitudes were found for each meteorological station. A forecast of the ice temperature regime for 2100 was modeled for three Representative Concentration Pathway (RCP) scenarios of global warming: moderate RCP2.6, corresponding to the current emissions of RCP7 and adopted at the Paris Agreement in 2015 RCP1.9. -
Limosa Haemastica (Linnaeus, 1758): First Record from South Istributio
ISSN 1809-127X (online edition) © 2010 Check List and Authors Chec List Open Access | Freely available at www.checklist.org.br Journal of species lists and distribution N Aves, Charadriiformes, Scolopacidae, Limosa haemastica (Linnaeus, 1758): First record from South ISTRIBUTIO D Shetland Islands and Antarctic Peninsula, Antarctica 1,2* 1 1 1, 2 3 RAPHIC Mariana A. Juáres , Marcela M. Libertelli , M. Mercedes Santos , Javier Negrete , Martín Gray , G 1 1,2 4 1 1 EO Matías Baviera , M. Eugenia Moreira , Giovanna Donini , Alejandro Carlini and Néstor R. Coria G N O 1 Instituto Antártico Argentino, Departmento Biología, Aves, Cerrito 1248, C1010AAZ. Buenos Aires, Argentina. OTES 3 Administración de Parques Nacionales (APN). Avenida Santa Fe 690, C1059ABN. Buenos Aires, Argentina. N 4 2 JarConsejodín Zoológico Nacional de de Buenos Investigaciones Aires. República Científicas de lay TécnicasIndia 2900, (CONICET). C1425FCF. Rivadavia Buenos Aires,1917, Argentina.C1033AAJ. Buenos Aires, Argentina. * Corresponding author. E-mail: [email protected] Abstract: We report herein the southernmost record of the Hudsonian Godwit (Limosa haemastica), at two localities in the Antarctic: Esperanza/Hope Bay (January 2005) and 25 de Mayo/King George Island (October 2008). On both occasions a pair of specimens with winter plumage was observed. The Hudsonian Godwit Limosa haemastica (Linnaeus tide and each time birds were feeding in the intertidal 1758) is a neartic migratory species that breeds in Alaska zone. These individuals showed the winter plumage and Canada during summer and spends its non-breeding pattern: dark reddish chest and white ventral region, black period in the southernmost regions of South America primaries and tail feathers, a long upturned bill pink at during the boreal winter. -
A Palynological Analysis of Seymour Island and King George Island Off
Louisiana State University LSU Digital Commons LSU Master's Theses Graduate School 2015 A Palynological Analysis of Seymour Island and King George Island off the Antarctic Peninsula: A Dating and Climatic Reconstruction Caven Madison Kymes Louisiana State University and Agricultural and Mechanical College, [email protected] Follow this and additional works at: https://digitalcommons.lsu.edu/gradschool_theses Part of the Earth Sciences Commons Recommended Citation Kymes, Caven Madison, "A Palynological Analysis of Seymour Island and King George Island off the Antarctic Peninsula: A Dating and Climatic Reconstruction" (2015). LSU Master's Theses. 392. https://digitalcommons.lsu.edu/gradschool_theses/392 This Thesis is brought to you for free and open access by the Graduate School at LSU Digital Commons. It has been accepted for inclusion in LSU Master's Theses by an authorized graduate school editor of LSU Digital Commons. For more information, please contact [email protected]. A PALYNOLOGICAL ANALYSIS OF SEYMOUR ISLAND AND KING GEORGE ISLAND OFF THE ANTARCTIC PENINSULA: A DATING AND CLIMATIC RECONSTRUCTION A Thesis Submitted to the Graduate Faculty of the Louisiana State University and Agricultural and Mechanical College in partial fulfillment of the requirements for the degree of Master of Science in The Department of Geology and Geophysics by Caven Madison Kymes B.S., Louisiana State University, 2013 December 2015 TABLE OF CONTENTS LIST OF TABLES……………………………………………………………………………. iii LIST OF FIGURES …………………………………………………………………………... iv ABSTRACT ..………………………………………………………………………………… v CHAPTER 1. INTRODUCTION TO ANTARCTIC EARTH SCIENCE ……………..…….. 1 1.1 Thesis style ………………………………………………………………………………... 1 1.2 Brief overview of projects and materials studied …………………………………………. 1 1.3 Antarctic Cenozoic history …...…………………………………………………………… 3 CHAPTER 2. -
Mm^Umamm a N E W S B U L L E T I N
mm^umamm A N E W S B U L L E T I N p u b l i s h e d q u a r t e r l y b y t h e NEW ZEALAND ANTARCTIC SOCIETY ■ H.M.N.Z.S. ENDEAVOUR about to tie up in Winter Quarters Bay. On right, Vince's Cross and Scott's hut. J. Calvert photo. MARCH, 1965 AUSTRALIA Winter and Summer bases Scott- S u m m e r b a s e o n l y t H a l l e f t "cton NEW ZEALAND Transferred base Wilkes UStcAust Temporarily non -operational. .KSyowa TASMANIA , Campbell I. (N-l) , ^ V - r . ^ ^ N . AT // \$ 5«|* Pasar'C ^rd(i/.sA . *"Vp»tuk , N |(I/.«.AJ i - S c o t t ( U . 5 J i t - A N T A R. M^ciJ ^>cwj a fi/V wX " < S M a u d **$P -Marion I. ttM DRAWN BY DEPARTMENT OF LANDS 1 SURVEY WELLINGTON, NEW ZEALAND, MAR.I9l»4- 1 " . " E D I T I O N m ilHl^IBS^IKB^k (Successor to "Antarctic News Bulletin") MARCH, 1965 Editor: L. B. Quartermain, M.A., 1 Ariki Road, Wellington, E.2, New Zealand. Business Communications, Subscriptions, etc., to: Secretary, New Zealand Antarctic Society, P.O. Box 2110, Wellington, N.Z. CONTENTS EXPEDITIONS New Zealand The Central Nimrod Glacier Geological Expedition: M. G. Laird Victoria University Research in Ice-free Areas: W. M. Prebble The D-region Project: J. B. Gregory France United States First Leg of Traverse Australia Belgium-Holland U.S.S.R South Africa Argentina United Kingdom Chile Japan Sub-Antarctic Islands British South Georgia Expedition Big Ben Conquered Special Articles: Hallett Closed Antarctic Stations—I. -
Paleogene Corals from Seymour Island, Antarctic Peninsula
PALEOGENE CORALS FROM SEYMOUR ISLAND, ANTARCTIC PENINSULA JAROSLAW STOLARSKI Stolarski, J. 1996. Paleogene corals from Sey mour Island , Antarctic Peninsula. In: A. Gaidzicki (ed.) Palaeontological Results of the Polish Antarctic Expeditions. Part 11. Pala eontologia Polonica 55, 51- 63. From the Sobral Formation (Paleoce ne) of Seymour Island solitary coralla of ?Aulocyathus Marenzeller, 1904 (suborder Caryophylliina) and branch fragments of Madrepora sobral Filkorn, 1994 (suborder Faviina) are described. In the overlying strata of the La Meseta Formation (Eocene) sclerac tinian coral fauna comprises solitary Caryophylliina tCrispa totrochus antarcticus sp. n., Caryo phyllia sp., Flabellum sp.) and colonial Dendrophylliin a tTubastra ea sp.). Reported are also octocoral holdfa sts. The genera recorded from both formations are known also from modern seas. Crispatotrochus antarcticus sp. n. is the earliest representative of the genus. ?Aulocya thus and Tubastraea have no other fossil record. K e y wo r d s : ScIeractinia, Octocorallia, taxonomy, Sobral Formation, La Meseta For mation, Tertiary, Antarctica. Jar oslaw Stolarski.Tnstytut Paleobi ologii PAN, Aleja Zw irki i Wigury 93, 02- 089 Warszawa, Poland. Received 6 Nove mber 1995, accep ted 15 Decem ber 1995 52 JAROSlAW STOLARSKI CONTENTS Introduction 52 Acknowledgement s 52 Geologica l setting 53 Systematic part . 54 Order Scleractini a BOURNE. 1900 54 Suborder Faviina VAUG IIA N et WELLS, 1943 54 Family Oculinidae GRAY. 1847 .. 54 Genus Madrepora LINNAEUS. 1758 54 Suborder Caryophylliina VAUG IIA N et WELLS. 1943 54 Family Caryophylliidae DANA. 1846 .. 54 Genus Caryophyllia LAM ARCK. 1816 54 Genus Aulo cyathu s MAR ENZELLER. 1904 55 Genus Crispatotrochus TENI SON WOODS. -
Mmymtmmx* a N E W S B U L L E T I N
mmymtmmx* A N E W S B U L L E T I N published b y t h e NEW ZEALAND ANTARCTIC SOCIETY 7i^ ■ I l , U.S.N.S. MAUMEE DOCKED AT McMURDO. Official U.S. Navy photo. Vol. 5, No. 9 MARCH, 1970 AUSTRALIA y»L/ E 'T w / ) WELLINGTONI -SCHRISTCHURCH I NEW ZEALAND TASMANIA VOSS DEPENDED ^ <k \^«**V t\ / Byrd(US)* ANTARCTICA, \ / l\ Ah Pliteiu <US)0<' Alferej Sobnl (Arj) < J,Gtncnl Belfrano \ / W N G M A L ) 0 \ j H . l l t y B a y ( U K ) / ^ < / (USSR)X%*r)\»»A-^ %^D "VVAY) I * aXA Tsplent."xsfi&** ^J#/&**?&- (USSM ^V^X^^ ^'^ 0r< DRAWN BY DEPARTMENT OF LANDS * SURVEY WELLINGTON. NEW ZEALAND. AUG IM9 3rd EDITION MLiHTOA IB ©INKD" (Successor to "Antarctic News Bulletin") Vol. 5. No. 9 57th ISSUE MARCH, 1970 Contributions, enquiries, etc., to the Acting Editor, C/- P.O. Box 2110, Wellington. Business Communications, Subscriptions, etc., to: Secretary, New Zealand Antarctic Society, P.O. Box 2110, Wellington, N.Z. CONTENTS ■ EXPEDITIONS New Zealand The First Year at Vanda Station: S. K. Cutfield U.S.A. France Belgium Australia U.S.S.R. South Africa Japan 389, 406 United Kingdom Argentina Sub-Antarctic Islands Flights to the Pole Antarctic Bookshelf Co-operation in Antarctic Research Antarctic Tourism 403 March, 1970 BAD WEATHER HAMPERS ACTIVITIES AT NEW ZEALAND STATIONS At Scott Base. Vanda Station and in the field, a very extensive summer programme was carried through despite much stormy weather and in the face of unexpected transport and other difficulties. Leader Bruce Willis reported late in AT TERRA NOVA BAY December: Unfortunately not as much ground as "With such a splendid start to the expected was covered by the four-man month as the celebration of the tenth DS1R geological party at Terro Nova anniversary of the signing of the Ant Bay owing to a combination of deep arctic Treaty, it seemed that we were soft snow and warm weather, but never set for a period of concerted activity.