@ARTICLE{Birkenmajer_Krzysztof_Tertiary_1991, author={Birkenmajer, Krzysztof and Frankiewicz, Jerzy K. and Wagner, Marian}, volume={vol. 12}, number={No 2}, journal={Polish Polar Research}, pages={229-241}, howpublished={online}, year={1991}, publisher={Polish Academy of Sciences}, publisher={Committee on Polar Research}, abstract={Thin coal seams found in the Lions Cove Formation, Polonia Glacier Group (Middle Eocene, upper part) at King George Bay, King George Island (South Shetland Islands, West Antarctica), represent lustrous (vitrine) brown-coal metaphase. The coal from the lower seam represents carbonized wood, probably angiosperm, that from the upper ones originated due to accumulation of branches or larger wood fragments and leaf remains. These coals are slightly older than metaxylite brown coal previously described from Admiralty Bay on King George Island, and dated at Eocene-Oligocene boundary. Both coal occurrences are evidences for a warm climate which prevailed in the Antarctic Peninsula sector during the Arctowski Interglacial (ca 50—32 Ma).}, type={Article}, title={Tertiary coal from the Lions Cove Formation, King George Island, West Antarctica}, URL={http://www.journals.pan.pl/Content/111129/PDF-MASTER/1991-2_229-241.pdf}, keywords={Antarctic, Tertiary, brown coal}, }