极地研究

极地研究 ›› 1998, Vol. 9 ›› Issue (2-English): 125-132.

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Late Palaeogene palynoflora from Point Hennequin of the Admiralty Bay, King George Island, Antarctica with reference to its stratigraphical significance

 Duan Weiwu1 and Cao Liu2   

  1. 1Guangzhou Marine Geological Survey, MGMR, Guangzhou 510075, China 2Nanjing Institute of Geology and Palaeontology, CAS, Nanjing 210008, China
  • 出版日期:1948-06-30 发布日期:1948-06-30
  • 通讯作者: Duan Weiwu

Late Palaeogene palynoflora from Point Hennequin of the Admiralty Bay , King George Island, Antarctica with reference to its stratigraphical significance

Duan Weiwu1 and Cao Liu2   

  1. 1Guangzhou Marine Geological Survey, MGMR, Guangzhou 510075, China 2Nanjing Institute of Geology and Palaeontology, CAS, Nanjing 210008, China
  • Online:1948-06-30 Published:1948-06-30
  • Contact: Duan Weiwu

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摘要：

The present paper is to discuss the geological age and sedimentary environment based mainly on the characteristics of the palynological assemblage in the intercalated tuffaceous sand mudstones of the Upper Point Hennequin Group in the Admirelty Bay, King George Island, Antarctica. More than 40 species, mainly the Late Paleogene plant community in Gondwana and belonging to Weddellian biogeographic Province, were encountered within the volcano sedimentary rocks of the Upper Point Hennequin Group. The index member is the genus Nothofagidites. The occurrence of N. cf. saraensis and N. cf. flemingii and the absence of Proteacidites spp. indicates that the sporopollen bearing rocks is of Oligocene age, which were deposited in a limnetic zone near medium lower mountains environment with warm and humid climate.

关键词: palynoflora, Point Hennequin Group, Palaeogene, Antarctica

Abstract:

The present paper is to discuss the geological age and sedimentary environment based mainly on the characteristics of the palynological assemblage in the intercalated tuffaceous sand mudstones of the Upper Point Hennequin Group in the Admirelty Bay, King George Island, Antarctica. More than 40 species, mainly the Late Paleogene plant community in Gondwana and belonging to Weddellian biogeographic Province, were encountered within the volcano sedimentary rocks of the Upper Point Hennequin Group. The index member is the genus Nothofagidites. The occurrence of N. cf. saraensis and N. cf. flemingii and the absence of Proteacidites spp. indicates that the sporopollen bearing rocks is of Oligocene age, which were deposited in a limnetic zone near medium lower mountains environment with warm and humid climate.

Key words: palynoflora, Point Hennequin Group, Palaeogene, Antarctica