The Jurassic of Denmark and Greenland: The Jurassic dinoflagellate cyst zonation of Subboreal Northwest Europe

Geological Survey of Denmark and Greenland Bulletin

关键词: Subboreal Northwest Europe;    Jurassic;    dinoflagellate cyst zonation;    palaeotemperatures and biotic provincialism;    dinoflagellate palaeoecology;   

DOI  :  

来源: DOAJ

【 摘 要 】

With an appendix by Bjørn Buchardt: Oxygen isotope palaeotemperatures from the Jurassic in Northwest Europe The Jurassic dinoflagellate cyst zonation for the British-Danish area is revised and discussed in relation to palaeoenvironmental factors, in particular, eustatic changes and fluctuations in palaeotemperature. The stepwise evolution of dinoflagellate cyst assemblages as defined by inceptions and apparent extinctions was largely controlled by sea-level change, particularly during intervals with significant short-term eustatic fluctuations. During times characterised by less pronounced, or longer term, sea-level change, fluctuations in oceanic palaeotemperatures appear to have influenced dinoflagellate evolution. Differences in the ranges of certain taxa between Denmark and the United Kingdom may be partly related to differences in palaeotemperature.

【 授权许可】

Unknown