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oa Geological research during 25-th Ukrainian Antarctic Expedition, February – April 2020: Kiev Peninsula of the Graham Coast
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, XIV International Scientific Conference “Monitoring of Geological Processes and Ecological Condition of the Environment”, Nov 2020, Volume 2020, p.1 - 5
Abstract
From February to April 2020 the authors carried out geological survey on the Graham Coast of the West Antarctica. The survey was a part of the seasonal researches of 25-th Ukrainian Antarctic Expedition supported by National Antarctic Scientific Center. Studied area was the mainland of the Kiev Peninsula from the Girard Bay to the Collins Bay and nearby islands. It was found out that outcrops of varied intrusive rocks are widely distributed in the inner part of the Kiev Peninsula of the Graham Coast. They are represented by plutonic and hypabyssal facies. Granitoids prevail among other petrographic representative of the intrusive rocks. Granites and granodiorites intrude in the Jurassic volcanites and Early-Cretaceous gabbroids in the Waddington Bay to Bussey Glacier aria. Studied granitoids can belong to the different intrusive complexes. To find out their relative ages it is necessary to complete additional routes on the west slopes of the Mount Mill and Guys Cliff. The parts of the large gabbroic intrusion are exposed in the inner part of the Girard Bay and are intruded by granitoids. Their geological position, age and petrography also need more researches. Erratic boulders additionally confirm the abundance of the granitoids in the inner part of the Kiev Peninsula. Among them red coarse granite deserve special attention as in relation to finding their bedrock and also to the reconstructions of the ancient glaciation namely its extent, thickness and travel routes.