 | | Journal (article/letter/editorial) | | 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...pumpellyite–actinolite facies, through the crossite–epidote blueschist facies, to the lower amphibolite facies...the other islands of the Elephant Island group are comparable to those from the main island; Smith Island |  | 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...facies, are of Jurassic age (176–200 Ma). On Powell Island, in the centre of the archipelago, five phases...Introduction The South Orkney Islands are located at 60°35'S, 45°00'W on the south side of the Scotia |  | | Journal (article/letter/editorial) | | 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 |  | | Journal (issue) | | 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 |  | | Journal (article/letter/editorial) | | Observations in the South Shetlands, the Palmer Archipelago, and Graham Land, Antarctica. By David Ferguson.... . Antarctic Island Groups a n d G r a h a m L a n d in relation to the F a l k l a n d Islands T h...t h S h e t l a n d Islands a n d Adjacent Lands Physical Character of t h e South S h e t l a n d s a...n d G r o u p of Islands . T h e E l e p h a n t Island G r o u p Cornwallis Island . . . . . . . Clarence...Clarence Island . . . . . . . B r i d g m a n Island . . . . . . . K i n g George Island A d m i r a l |  | | Journal (article/letter/editorial) | | 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 |  | | Journal (article/letter/editorial) | | Contribution to the Petrography of the South Shetland Islands, the Palmer Archipelago, and the Danco...Danco Land Coast, Graham Land, Antarctica. By Or. W. Tyrrell, A.B.C.Sc, F.G.S., Lecturer in Geology, University...dealing with the rocks collected by the Belgian Antarctic Expedition (1897-99), and E. GOURDON,} investigating...investigating the specimens obtained by the first French Antarctic Expedition, have also described rocks from the...collected from the islands of the Balmer Archipelago. Material from the South Shetland Islands was collected |  | Machado, Adriane, Chemale, Farid, Conceição, Rommulo V., Kawaskita, Koji, Morata, Diego, Oteíza, Orlando, Van Schmus, William R. (2005) Modeling of subduction components in the Genesis of the Meso-Cenozoic igneous rocks from the South Shetland Arc, Antarctica. Lithos, 82 (3) 435-453 doi:10.1016/j.lithos.2004.09.026 | Journal (article/letter/editorial) | | Meso-Cenozoic igneous rocks from the South Shetland Arc, Antarctica Adriane Machadoa,T, Farid Chemale Jr...King George and Ardley islands (South Shetland arc, Antarctica). These islands were formed during subduction...subduction of the Phoenix Plate under the Antarctica Plate from Cretaceous to Tertiary. Isotopically (87Sr/86Sr)o...68, and 206Pb/204Pb from 18.28 to 18.81. The South Shetland rocks are thought to be derived from a depleted...rights reserved. q Keywords: Subduction; Fluids; Island arc magmas; Pb isotopes; Nd isotopes; Sr isotopes |  | | Journal (article/letter/editorial) | | 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)...represented by "greenschists", "blueschists" and albite-epidote-hornblende-bearing rocks of the pre-Jurassic metamorphic...metamorphic complex. The Trinity Peninsula Group has been re-examined in the type area and can be divided...almost continuously around the Pacific margin from South America to New Zealand. *) Address of authors: G |  | | Report (chapter) | | 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 |  | Dalziel, Ian W.D., Lawver, Lawrence A., Norton, Ian O., Gahagan, Lisa M. (2013) The Scotia Arc: Genesis, Evolution, Global Significance. Annual Review of Earth and Planetary Sciences, 41. 767-793 doi:10.1146/annurev-earth-050212-124155 | Journal (article/letter/editorial) | | earth.annualreviews.org Gondwana, Scotia Sea, South Atlantic, Weddell Sea This article’s doi: 10.1...Andes through the active South Sandwich volcanic arc to the Antarctic Peninsula. Its origins lie in the...flare-up. Relative motion between South America, Africa, and East Antarctica during the opening of the southern...blocks eastward to form the North and South Scotia Ridges. The South Sandwich volcanic arc system originated...beneath oceanic crust formed between South America and Antarctica and serves as an excellent tectonic |  | | Report (chapter) | | 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 |  | | Book | | 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 |  | | Report (issue) | | 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 |  | | Book (volume) | | 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 |  | | Book | | 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 |  | | Book | | 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 |  | | Journal (article/letter/editorial) | | 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 |  | | Book | | 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 |  | | Journal (issue) | | 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 |  | | Journal (article/letter/editorial) | | 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...temperatures and high pressures, and the albite-epidote amphibolite (EA) facies in between. The boundaries...AP = actinolite-calcic plagioclase; EA = albite epidote amphibolite; AM = amphibolite; HGR = highpressure |  | 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... lP record because it commonly transforms to epidote and other minerals during prograde or retrograde...blueschist associated with eclogite (lawsonite-bearing, epidote-bearing), and blueschist not associated with eclogite... Characterisation and Analysis, University of Western Australia, Crawley WA 6009, Australia Eurasia Institute...geologic record because it commonly transforms to epidote and other minerals during prograde or retrograde |  | | Journal (article/letter/editorial) | | 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 |  | | Report (volume) | | 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 |  | | Journal (article/letter/editorial) | | Tay Limestone, long recognised as such in the peninsula of Kintyre (Watts, 1895, p. 57). Probability became...recognition in Antrim (1) of sedimentary chlorite-epidote-schists corresponding in character and position...part of Antrim an anticline with axis striking south-westward. The structure of the Antrim schists is...Glenshesk Biver, which flows north to Ballycastle. South of the Glendun Eiver we gave up the task as hopeless...already been established by several workers in the South-west Highlands of Scotland, coupled with a close |
|
