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| evolution of a subduction complex, South Shetland Islands, Antarctica R. A. J. TROUW 1, L . S . A . SI...out in the Elephant Island group and at Smith Island, South Shetland Islands, Antarctica, with metamorphic...Seven metamorphic zones (I–VII) mapped on Elephant Island delineate a gradual increase in metamorphic...the other islands of the Elephant Island group are comparable to those from the main island; Smith Island...magmatic arc, with its continuation in the Antarctic Peninsula, provides one of the best documented histories |
 | TROUW, R. A. J., PASSCHIER, C. W., SIMÕES, L. S. A., ANDREIS, R. R., VALERIANO, C. M. (1997) Mesozoic tectonic evolution of the South Orkney Microcontinent,
Scotia arc, Antarctica. Geological Magazine, 134 (3) 383-401 doi:10.1017/s0016756897007036 | Journal (article/letter/editorial) |
| tectonic evolution of the South Orkney Microcontinent, Scotia arc, Antarctica R. A. J. TROUW*, C. W. PASSCHIER†...accepted 13 January 1997) Abstract – The South Orkney Islands are the exposed part of a continental fragment...fragment on the southern limb of the Scotia arc. The islands are to a large extent composed of metapelites and...anchizone to the greenschist facies, are of Jurassic age (176–200 Ma). On Powell Island, in the centre...Introduction The South Orkney Islands are located at 60°35'S, 45°00'W on the south side of the Scotia |
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| United Kingdom 655 Metamorphic rocks in the Antarctic Peninsula region ANKE S. WENDT ∗ , ALAN P. M . VAUGHAN...VAUGHAN & ALEXANDER TATE British Antarctic Survey, Geosciences Division, High Cross Madingley Road, Cambridge...distribution of metamorphic rocks in the Antarctic Peninsula region, new quantitative peak pressure–temperature...pressure–temperature data along the Antarctic Peninsula, and a literature review on the current knowledge of metamorphic...metamorphic conditions in the Antarctic Peninsula region have been compiled into a single metamorphic |
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| GR Focus Review High-pressure metamorphism in Antarctica from the Proterozoic to the Cenozoic: A review...2012 Available online 8 August 2012 Keywords: Antarctica Eclogite Garnet peridotite Blueschist-facies...c t The survey of high-P metamorphic rocks in Antarctica can help clarify the geodynamic evolution of...have been long forgotten (George V Land; Eyre Peninsula in Australia). Stillwell (1918) described rocks...blueschist-facies imprint. Many terranes in East Antarctica underwent a tectonometamorphic evolution during |
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| signatures of metasedimentary rocks around the South Pacific margin and ~implications for their provenance...Australia (e-maik maasr@unimelb, edu. au) 4British Antarctic Survey, High Cross, Madingley Rd, Cambridge CB3...Australia, New Zealand, West Antarctica and the Antarctic Peninsula to southern South America. Combining with...inputs. In southern South America, West Antarctica and the Antarctica Peninsula, similar accretionary...especially in the Palaeozoic (Western Province, New Zealand, interior West Antarctica and NW Argentina), and |
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| ROCKS FROM ANTARCTICA: THE DISCOVERY COLLECTION IN THE BRITISH MUSEUM (NATURAL HISTORY) D. R. C. KEMPE...MINERALOGY Vol. 2 No. 7 LONDON: 1973 ROCKS FROM ANTARCTICA: THE DISCOVERY COLLECTION IN THE BRITISH MUSEUM...Issued 5 September, 1973 Price £2.45 ROCKS FROM ANTARCTICA: THE DISCOVERY COLLECTION IN THE BRITISH MUSEUM...I. II. Introduction Australian Antarctic Territory Bertha Island, Sheehan Nunatak i Scullin Monolith...Clarence Island South Orkney Islands Inaccessible Islands (a) Coronation Island (b) Signy Island (c) Powell |
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| Sedimentary Rocks at the Pacific Margin in Western Antarctica. By G. HYDEN~%P. W. G. TANNER,Cambridge *)...Abstract We infer that the Trinity Peninsula Group of the Antarctic Peninsula was deposited in a fore-arc basin(s)...pre-Jurassic metamorphic complex. The Trinity Peninsula Group has been re-examined in the type area and...almost continuously around the Pacific margin from South America to New Zealand. *) Address of authors: G...G. HYDEN and P. W. G. TANNER, British Antarctic Survey, Natural Environment Research Council, Madingley |
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| ABSTRACT A review is given of the geology of the islands of the Scotia Arc. The provenance of the sedimentary...materials is considered and it is concluded that the islands probably represent areas with a crustal structure...the Caribbean. I. INTRODUCTION N EAR the tip of South America, in Tierra del Fuego, the Andes curve round...sea. Farther south, on the opposite side of Drake Passage, the narrow mountainous ELEPHANT and CLARENCF...CLARENCF SOUTH SHETLAND ISLANDS SOUTH ORKNEY ISLANDS TEXT-FIG. 1.—Map of the Scotia Sea area showing the |
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| marginal basin at the northern tip of the Antarctic Peninsula. Across the Drake Passage from the Bransfield...concentrations and ratios of diagnostic trace elements show island arc affinities. Geochemical discrimination diagrams...chemical characteristics similar to those generated at island arcs (e.g. Miyashiro 1973; Harper 1984; Leitch...Bransfield Strait (Deception, Bridgeman, and Penguin Islands; Fig. 2) pointed out significant similarities (Tarney...Bransfield Strait ~ Drake Plate ..~0~ J ~-~~~:'~\ Shetland Microplate The Bransfield Strait (Fig. 1) is |
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| stresses: The case of Signy Island (South Orkney Microcontinent, Antarctica) A. MAESTRO1,2*, J. LÓPEZ-MARTÍNEZ2...brittle mesostructures measured at 43 sites in Signy Island show a stress field characterized by compressional...mode trending NW–SE together with secondary north– south and NE–SW extensional stress directions. The NNW–...tectonic regime changes to extensional with north–south extensional stress directions. The early processes...sector of the Weddell Sea oceanic crust below the South Orkney Microcontinent, from the Paleocene until |
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| https://archive.org/details/antarcticgeologyOOOOsymp ANTARCTIC GEOLOGY AND GEOPHYSICS SCANDINAVIAN UNIVERSITY...- NUMBER I ANTARCTIC GEOLOGY AND GEOPHYSICS Edited by RAYMOND J. ADIE British Antarctic Survey, Department...Birmingham, Birmingham 15, England Symposium on Antarctic Geology and Solid Earth Geophysics, Oslo, 6-15...1970, organized by the SCIENTIFIC COMMITTEE ON ANTARCTIC RESEARCH and sponsored by the INTERNATIONAL UNION...of Antarctica can best be judged from the fact that 7 years after the 1963 Symposium on Antarctic Geology |
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| U G H A N & R. A. L I V E R M O R E British Antarctic Survey, High Cross, Madingley Rd, Cambridge CB3...Triassic-Early Jurassic event is called the Peninsula Orogeny in West Antarctica (Miller 1983) and the Rangitata...event is called the Palmer Land event in the Antarctic Peninsula region (Kellogg & Rowley 1989; redated by...Dating technique/criteria Antarctica South Orkney Islands Antarctic Peninsula Pensacola Mountains Deformation...Scotia complex rocks Peninsula Orogeny affecting Alexander Island and Trinity Peninsula accretionary rocks |
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| com/locate/pgeola Geological exploration of South Atlantic islands and its contributions to the continental...January 2015 The geological character of the South Atlantic islands was only slowly established during the...continental drift but, as the continental nature of the islands became apparent, their ‘oceanic’ setting was utilised...respective positions. So islands such as the Falklands archipelago and South Georgia were cited either...landmass that had subsided beneath the water of the South Atlantic. The appreciation of the Scotia Arc as |
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| MARGINS Volume | The South Atlantic THE OCEAN BASINS AND MARGINS Volume 1: The South Atlantic ¢ 1973 ...Department of Geology Case Western Reserve University Cleveland, Ohio Volume 1 The South Atlantic PLENUM PRESS...Géttingen, Germany Department of Geology Case Western Reserve University Cleveland, Ohio Walter C....Ohio State University, Columbus Port Elizabeth, South Africa Institute of Polar Studies Department of...Department of Geology Case Western Reserve University Department of Geology Case Western Reserve University |
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| CIRCULAR 909 Petroleum and Mineral Resources of Antarctica Work done in cooperation with the National Science...Foundation Petroleum and Mineral Resources of Antarctica By John C. Behrendt, Editor GEOLOGICAL SURVEY...Branch of Distribution, U.S. Geological Survey, 604 South Pickett Street, Alexandria, VA 22304 CONTENTS...resources in Antarctica?, by John C. Behrendt . . . . . . Mineral occurrences of Antarctica, by Peter D...· · · · · · · · · · · The Dufek Intrusion of Antarctica and a survey of its minor metals and possible |
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| deals with the attractive Southernmost Andes–Antarctica connection issue, which has called the attention...fieldwork. His research started in the Tierra del Fuego Island during his Ph.D. thesis (1999–2003), to continue...development and mountain building at the southern end of South America. XXII Intern Geol Congr, India, Proceedings...complex evolution. Seismicity in the southernmost South America and its complex relation with the geodynamic...Southernmost Andes and its southern neighbors: Antarctica and the Scotia Sea. The Southernmost Andes comprise |
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| 1985 with his map of the McMurdo Sound area of Antarctica. We are pleased to republish these paintings...Polar Research Center 275 Mendenhall Laboratory 125 South Oval Mall Columbus, Ohio 43210 USA faure.1@osu.edu...during the 1969/1970 field season. Prolog Antarctica! The very word brings to mind images of fierce...winds, bone-chilling cold, and utter desolation. Antarctica has the reputation of being a hostile place unfit...worked there have a very different impression of Antarctica. To us it is a place of unsurpassed beauty where |
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| Resources Potential of Antarctica SHL WITHDRAWN Physical Sciences ANTARCTIC OCEANOLOGY Joseph L. Reid...Reid, Editor ANTARCTIC OCEANOLOGY II: THE AUSTRALIAN- NEW ZEALAND SECTOR Dennis E. Hayes, Editor...Editor ANTARCTIC SNOW AND lcE STUDIES Malcolm Mellor, Editor ANTARCTIC SNOW AND lcE STUDIES II A. P. Crary...SoIL FORMING PROCESSES J. C. F. Tedrow, Editor ANTARCTIC DRY VALLEY DRILLING PROJECT L. D. McGinnis...PALEONTOLOGY OF THE Jarvis B. Hadley, Editor VICTORIA ANTARCTIC GEOLOGY OF THE CENTRAL 'fRANSANTARCTIC MOUNTAINS |
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| America Bulletin Regional Geochronology of Chile South of 50° Latitude MARTIN HALPERN Geological Society...Dallas, Texas 75230 Regional Geochronology of Chile South of 50° Latitude ABSTRACT INTRODUCTION In southern...Pacific Ocean is rimmed by a complex array of islands and mountain chains. Because of the remote setting...Tertiary age. T h e area under investigation lies south of the Chile Rise and east of the presently inactive...Trench near the boundary between the South American and Antarctic plates. T h e aim of this study is to |
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| three key regions were seleeted: 1) the Andes in South Ameriea and the Roekies in North Ameriea 2) the...Giese et al. using new data from boreholes of Rügen island. The eontribution of Birkenmajer deseribes a region...the Paeifie Margin of the Northern Antaretie Peninsula". One step back in the Earth's history is done...lower crust, based on the migrated elements of the Western and Central Alps (Penninie to Jura); solid section...the ECORS-CROP line near the northern end of the Western Alps there is now a comparatively dense network |
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| Mesozoic HP-LT metamorphic units (Diego de Almagro Island, Southern Chile): evidence for juxtaposition during...handling: J. G. Raith Summary On Diego de Almagro Island in Chilean Patagonia (51 300 S), a convergent...fission track ages ranging from 78 to 105 Ma in the South Patagonian batholith to the east indicate earlier...Introduction Diego de Almagro Island (lat. 51 300 S; Fig. 1) is a remote island in the southern Chilean archipelago...Sarmiento. The first account of the geology of this island by Cecioni (1955) indicated the presence of Paleozoic |
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| complex characterized by bedded chert, MORB and ocean-island basalts, reef limestones, and graywackes. The spatiotemporal...and of the B-type blueschists on the Olympic Peninsula of Washington. The oldest blueschists, about 700... and along the NW margin of the Tarim craton, western China. These occurrences indicate that, by Late...bounded by the pumpellyiteactinolite (PA) and greenschist (GS) facies at low pressures, the eclogite (EC)...prehnite-actinolite; PA = pumpellyite-actinolite; GS = greenschist; AP = actinolite-calcic plagioclase; EA = albite |
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| but the author also comprehensively surveys the Western literature. Both oceanic and terrigenous protoliths...Mid-Atlantic, Reykjanes, II) North Atlantic, III) South Atlantic. Zones of sublatitudinal disjunctive faults:...Active marginal zones: VII) Antilles island arc, VIII) Scotia Sea island arc, IX) relict buried structures...In a paper dealing with the hyperbasites in the South Sandwich Trench (internal mar gin), Rudnik and...the samples taken from the oceanic flank of the South Sandwich Trough have metamorphites pre dominant |
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| Australian Mineral Foundation 63 Conyngham St Glenside South Australia 5065 Australia (Orders: Tel: (08)379-0444)...collectively present data from deep sea drilling in the Western Pacific, in particular the geochemical variations...rocks of the Papuan and Marum ophiolites of the island of New Guinea, these rocks appear to have strong...the Josephine ophiolite from the Oman and Bay of Islands ophiolites, which probably formed at fast-spreading...sediments were thrust >100 km southeastward beneath western North America, and a coeval magmatic arc (Chetco |
 | Whitney, Donna L., Fornash, Katherine F., Kang, Patricia, Ghent, Edward D., Martin, Laure, Okay, Aral I., Vitale Brovarone, Alberto (2020) Lawsonite composition and zoning as tracers of subduction processes: A global review. Lithos, 370. 105636pp. doi:10.1016/j.lithos.2020.105636 | Journal (article/letter/editorial) |
| Characterisation and Analysis, University of Western Australia, Crawley WA 6009, Australia 5 Eurasia... Characterisation and Analysis, University of Western Australia, Crawley WA 6009, Australia Eurasia Institute...(M); (4) South Motagua fault zone, Guatemala (M) (Fig. 6b, 7e-f); (5) Voltri Massif, Western Alps, Italy...Ridge area, Kyrgyzstan (M); and (16) the Pam Peninsula, New Caledonia (primarily C). In New Caledonia...retrograde blueschist assemblage. Eclogites on the island of Sulawesi, na Indonesia, contain texturally-late |
