TY - JOUR N2 - Admiralty Bay, which is the largest embayment on King George Island (South Shetland Islands, West Antarctica) has been geologically mapped by the present author between 1977 and 1979. The following rock-complexes have been distinguished: 1) evoic stratiform complex of andesitic and rhyolitic lavas and sediments (Martel Inlet Group and Cardozo Cove Group: probably Upper Jurassic); 2) Andean intrusions represented by gabbroic and dioritic dykes with associated pyrite-mineralization (Wegger Peak Group: approximately Cretaceous-Tertiery boundary); 3) Tertiary stratiform complex of basaltic and andesitic lavas and interstratified sediments, altogether more than 2700 m thick (King Island Supergroup: probably Eocene — Middle Miocene); 4) late Tertiary intrusive complex of basaltic and andesitic dykes and plugs (Admiralty Bay Group: probably boundary of Miocene and Pliocene); 5) late Tertiary effusives: olivine basalts, andesites etc., and sediments, about 600 m thick (Kraków Icefield Supergroup: Pliocene and ?earfy Pleistocene), with well preserved traces of two subsequent glaciations; 6) Quaternary intrusions (Cape Syrezol Group), Pleistocene) and effusives (Penguin Island Group: Holocene), mainly olivine basalts, related to opening of the Bransfield rift. An outline of structural history of King George Island is also presented. L1 - http://www.journals.pan.pl/Content/111594/PDF/1980_1_029-054.pdf L2 - http://www.journals.pan.pl/Content/111594 PY - 1980 IS - No 1 EP - 54 KW - Antarctic KW - geology A1 - Birkenmajer, Krzysztof PB - Polish Academy of Sciences PB - Committee on Polar Research VL - vol. 1 DA - 1980 T1 - Geology of Admiralty Bay, King George Island (South Shetland Islands)— An outline SP - 29 UR - http://www.journals.pan.pl/dlibra/publication/edition/111594 T2 - Polish Polar Research ER -