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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 ÂŁ2.45 ROCKS FROM ANTARCTICA: THE DISCOVERY COLLECTION IN THE BRITISH MUSEUM...Introduction Australian Antarctic Territory Bertha Island, Sheehan Nunatak i Scullin Monolith Chemistry and...Clarence Island South Orkney Islands Inaccessible Islands (a) Coronation Island (b) Signy Island (c) Powell |
 | TROUW, R. A. J., PASSCHIER, C. W., SIMĂES, 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. PASSCHIERâ ...accepted 13 January 1997) Abstract â 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 (176â200 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 |
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| Scotia Metamorphic Complex of the South Orkney Islands, West Antarctica, average 190 ± 4 Ma. The muscovite...onto the northern Antarctic Peninsula and southern South American continent margins. Tectonic erosion during...Accurately establishing the timing of accretion to the South American and Antarctic Peninsula Gondwana margin...Complex, an accretionary complex on the South Orkney Islands (Fig. 1; Tanner et al., 1982; Dalziel 1984)...the South Orkney Islands The Scotia Metamorphic Complex (Tanner et al., 1982) of the South Orkney Islands |
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| subduction-accretion complex rocks of Fredriksen Island, South Orkney Islands B. C. STOREY & A. W. MENEILLY (Plates...1-7) Summary. A melange on Fredriksen Island, South Orkney Islands, is part of a Mesozoic subductionaccretion...Introduction Fredriksen Island, which is situated within the South Orkney Islands on the south Scotia Ridge, forms...The accretionary-subduction complex of the South Orkney Islands (Fig. 1) can be divided into two lithotectonic...complex rocks of southwest Coronation Island (Fig. 1) and the Seal Islands (60° 59' S, 55° 25' W). The |
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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...the east before they are lost in the sea. Farther south, on the opposite side of Drake Passage, the narrow...mountainous ELEPHANT and CLARENCF SOUTH SHETLAND ISLANDS SOUTH ORKNEY ISLANDS TEXT-FIG. 1.âMap of the Scotia |
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| PETROGRAPHY OF SOME ROCKS FROM THE SOUTH ORKNEY ISLANDS AND THE ANTARCTIC ARCHIPELAGO DuNcaN Srowlnt...180 182 Introduc tion and acknowledgments South Orkney Islands.. Antarctic Archipelago. r82 General statement...CockburnIs1and.. Snow Hill Island.. S e y m o u rI s l a n d . . . .. James Ross Island Hope Bay, Louis Philippe...University, nine duplicate specimensobtained from the South Orkney fslands by the Scottish Expedition. Dr. Gregori...1 is a sketch map of Antarctica showing the location of the South Orkney Islands and the Antarctic Archipelago |
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| subduction-accretion terrane, Signy Island, South Orkney Islands B. C . STOREY & A . W. MENEILLY, British...amphibolite are presented from Signy Island, South Orkney Islands, part of the Scotia metamorphic complex...with limestones and Mn-rich cherts of an oceanic island assemblage were tectonically mixed with trench...Signy Island (lat. 60"43'S, long. 45'38'W) is situated within the South Orkney Islands on the south Scotia...Cretaceous a minimum age for the metamorphism on Signy Island is given by K-Ar mineral ages of 180- 200 Ma (for |
 | Lodolo, E., Civile, D., Vuan, A., Tassone, A., Geletti, R. (2010) The ScotiaâAntarctica plate boundary from 35°W to 45°W. Earth and Planetary Science Letters, 293 (1) 200-215 doi:10.1016/j.epsl.2009.12.045 | Journal (article/letter/editorial) |
| r. c o m / l o c a t e / e p s l The ScotiaâAntarctica plate boundary from 35°W to 45°W E. Lodolo a...2010 Editor: R.D. van der Hilst Keywords: ScotiaâAntarctica plate boundary seismic proïŹles fault-plane solutions...southern margin of the Scotia Sea east of the South Orkney microcontinent has allowed identifying and mapping...features of the central segment of the ScotiaâAntarctica plate boundary. This margin is composed by several...segment corresponds to the northern margin of the South Orkney microcontinent, where a subduction zone seems |
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| the earlier soundings taken between the Falkland Islands and the S. Orkneys, and in these cases, although...material from the region between the Falkland Islands, the S. Orkneys, and the S. Sandwich group is most...meridian W. long, between 60° S. lat. and Gough Island. The sounding-machine used was a Lucas machine...Falkland Islands. One (No. 29) is from a depth of 56 fathoms on the Burdwood Bank, lying to the south of the...the Falkland Islands. Five samples (Nos. 24a, 246, 24c, 25a, 256) are from depths of under 100 fathoms |
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| ________________________ 95 '(E) Coal investigations in south-central Alaska, 1944-46, by F. F. Barnes, Clyde...main level of the Flagstaff mine, Prince of Wales Island, southeastern Alaska ___________________ In pocket...Bay___. 21 24 9. Index map of part of Chichagof Island showing location of gypsum mine and prospect at...of Bear Creek asbestos deposit, i* Admiralty Island.____________---__-_----------------- 35 14. Sketch...Sketch map of Bear Creek asbestos deposit, Admiralty Island. 36 15. Sketch map of workings at copper prospect |
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| Alaska Peninsula, and as far afield as St. Matthews Island in the Bering Sea. It was named for the eminent...who drowned in 1961 while conducting fieldwork south of the Wrangell Mountains. The vessel was originally...sampling traverse, Harris Peak, Prince of Wales Island, southeast Alaska. Photograph by John B. Cathrall...Areas 1-12-Coronation Island, Warren Island, Kosciusko, Marble, Orr, Tuxekan, and Heceta Islands, Esquibel...Esquibel Island, Noyes Island, Lulu Island, San Fernando Island, San Juan Bautista Island, Baker Island, Suemez |
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| ................... 6 Northern Prince of Wales Island and vicinity .............. 6 Minor reconnaissance...Yukon-Kuskokwim region and northeastern, east-central, south-central, and southeastern Alaska. Reconnaissance...northern part of Prince ofWales Island and parts of adjacent islands in southeastern Alaska found that...limited in areal extent to the Prince of Wales Island coast from near Exchange Cove to Point Colpoys...uranothorianite in the placers at Gold Bench on the South Fork of the Koyukuk River was not found during a |
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| G. W. TyrrellâPetrography of South Georgia. 483 and Crusnes fields. Hence it is clear that German munitions...Conference. II.âADDITIONAL NOTES ON THE PETROGKAPHY OP SOUTH GEORGIA. By G. W. TYEKELL, A.K.C.SC, F.G.S., F.B...Salvesen & Co., of Leith, stationed at Leith Harbour, South Georgia. The collection reached me, for description...Ferguson, Mem. Inst. M.E., who recently1 visited the island, and who has described its geological features...features. Two previous collections of rocks from South Georgia have been8 described by me, one collected by Mr |
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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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| 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...maxi mal. Stations lying in the inner part of the island arc in the Scotia Sea are in parts of the ocean |
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| Geology and ore deposits of northwestern Chichagof Island, Alaska, by D. L. Rossman---------------------...quadrangle and adjoining areas, Prince of Wales Island, southeastern Alaska, by C. L. Sainsbury_ _ Tofty...--------------Northern part of Prince of Wales Island and parts of adjacent islands____ Generalgeolo...pocket] 1. Map of northern part of Prince of Wales Island, southeastern Alaska. 2. Geologic map of Salmon...Petersburg quadrangle. 3. Geologic sketch map of Pitcher Island, Salmon Bay area. PLATE Page 1. Map of southeastern |
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| Cornwallis Peninsula on Kuiu Island, the Keku Islets north of Kuiu Island, Cholmondeley Sound and Beaver...of Wales Island, Woewodski Island, Taylor Creek on Kupreanof Island, and Coronation Island. Some of these...Endicott Arm opposite Sumdum Island and including Sumdum and Bushy Islands. 241946 53 1 ZINC AND LEAD...includes a 16-foot shaft, and locating the north and south limits of the deposit. (See pi. 1). All the old...hospitality and cooperation of Ernest Kohlhase, of Harbor Island, is greatly appreciated. GEOLOGY The area in the |
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| in the northern districts and of copper to the south in the Ketchikan district is also noteworthy. Detailed...Marble Co. quarry 69 El Capitan marble quarry 70 Ham Island marble quarry 71 Pacific Coast gypsum mine ÂŁapeOmmaney...wide areas in the central portions of many of the islands. Their mode of occurrence is at many places directly...effected by the smaller intrusive masses on the islands are facts that have been frequently noted. The...contact of the Coast Range intrusive mass. On the islands the stratified rocks, though much altered, do not |
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| Mainland belt _______ _ __.,____________ 23 Seaward islands : 26 Climatic conditions ______ _ __ _____ 27 Timber...belt__________________________ 78 Prince of Wales Island and the seaward islands__________ 79 Principal...description._______________________ 166 Prospects south of Cholmondeley Sound______ ______ 166 Prospects'at...___ 172 Prospects on south side of North Arm________________ Gravina Island _______._____________________...Baker Island_____________________________ Woewodski Island _____________________________ Woronkofski Isla |
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| earth scientists in the scientific exploration of Antarctica can best be judged from the fact that 7 years...geology and solid earth geophysical literature of Antarctica. It is worth noting that two important differences...where earth scientists have but a fragment of Antarctica exposed to study and at times make, in some cases...parts of Antarctica, and the infuence of new plate tecÂŹ tonic thinking not only in Antarctica but in its...Adie freedom of the SCAR nations working in Antarctica, to give to SCAR his services, for the second |
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| as possible, in their geographic sequence from south to north. The order of treatment will have to be...largest known of these belts skirts the westernmost islands of the Alexander Archipelago in the vicinity of...well-defined belt of mineralization from Snettisham on the south to Berners Bay on the north; but some gold has been...marble quarry 70 Ham Island marble quarry 71 Pacific Coast gypoum mine CORONATION I. L --"" oco .. 3|x^vix-;:\lAKi...and by Quaternary gravels. The geology of Kodiak Island is little known^ but it is probable that metamorphic |
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| MARGINS Volume | The South Atlantic THE OCEAN BASINS AND MARGINS Volume 1: The South Atlantic ¹ 1973 ...Reserve University Cleveland, Ohio Volume 1 The South Atlantic PLENUM PRESS « NEW YORK-LONDON RE 39...Ohio State University, Columbus Port Elizabeth, South Africa Institute of Polar Studies Department of...their chapters. Special thanks must be given to our South American colleagues, for the tolerance with which...Chapter A. E. 1. A Model M. Nairn for the South and F. G. Atlantic Stehli Chapter 2. Geology |
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| Significant metalliferous lode deposits, Aleutian Islands and Alaska Peninsula 41 Significant metalliferous...mainly hot springs related to marine volcanism in island arcs or in extensional regimes. The d ep os it...and Mnpoor ochre. Notable examples are the Knight Island and Threeman mines, and the Copper Bullion deposit...in the northwestern Brooks Range and the Castle Island mine in southeastern Alaska. Sandstone ~ deposit...malachite, azurite, metamorphic chlorite, actinolite, epidote, albite, quartz, zeolites, and secondary dolomite |
 | Nokleberg, W.J., Bundtzen, T.K., Berg, H.C., Brew, D.A., Grybeck, Donald, Robinson, M.S., Smith, T.E., Yeend, W.E. (1988) Metallogeny and major mineral deposits of Alaska. Open-File Report Vol. 1988 (88-73) US Geological Survey doi:10.3133/ofr8873 | Report (issue) |
| Range Region ..... 25 LODE DEPOSITS - ALEUTIAN ISLANDS AND ALASKA PENINSULA .................... 29 Vein...Vein and Porphyry Deposits, Aleutian Islands and Southwestern Alaska Peninsula ................................ 38 Chromite and Ni-Cu Deposits, Kodiak Island, Kenai Peninsula, and Northern Chugach Mountains..................... 38 Au Vein Deposits, Kodiak Island, Southeast Kenai Peninsula, and Northern Chugach............... 58 Major Placer Districts, Kodiak Island, Taleetna and Chugach Mountains, Southern Alaska |
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| Elsewhere, the routes are described east to west or south to north. The ferry routes are treated just like...OâHaire lives in AnchorÂŹ age and was responsible for south-central and interior Alaska, plus the Pipeline Haul...JunctionâFairbanks.129 Tetlin JunctionâEagle.133 Chapter III. South-Central Alaska.137 Anchorage and the Kenai Peninsula...sea-floor rifts like those near the Galapagos Islands today. Other blocks 1 2 A simplified geologic...Pacific Rise. were created as chains of volcanic islands formed in areas where moving slabs of denser oceanic |
