Late Pliocene Greenland – The Kap København Formation in North Greenland

Bulletin of the Geological Society of Denmark

Meidla, T.:¹  Tinn, O.¹ 

关键词: Ordovician;    Komstad Limestone;    ostracodes;    Bornholm;    otinn [at] math [dot] ut [dot] ee"'>Tõnu Meidla [ otinn [at] math [dot] ut [dot] ee;    tmeidla [at] math [dot] ut [dot] ee ]"'>tmeidla [at] math [dot] ut [dot] ee ];    Institute of Geology. University of Tartu. Vanemuise 46;    Tartu;    51014;    Estonia. 29 March 1999.;   

学科分类：地球科学(综合)

来源: Dansk Geologisk Forening

【 摘 要 】

The Kap København Formation, North Greenland, is a 100-m thick succession of predominantly shallow marine nearshore sediments, dated to c. 2.4 ma. The abundant well preserved remains of mosses, land plants, foraminifers, ostracodes, insects, cladocers, molluscs, and a few vertebrates enable a detailed reconstruction of terrestrial and marine environments and climate. The sediments indicate a complex sea-level history implying combined glacioisostatic and -eustatic control. This is supported by the faunal and floral development from arctic to subarctic and boreal conditions, and the record probably reflects the demise of the first major Cenozoic ice sheet, the Praetiglian, over the area, and the onset of the succeeding Tiglian A interglacial. The record ends with the attainment of the interglacial sea-level highstand and climate optimum when forest tundra reached the world’s northernmost coasts. It is inferred that the duration of sedimentation was a half obliquity cycle, i.e. 20,000 yr, at the most.

【 授权许可】

Unknown