Review of the Ediacaran-Lower Ordovician (pre-Sardic) stratigraphic framework of the Eastern Pyrenees, southwestern Europe;;Review of the Ediacaran-Lower Ordovician (pre-Sardic) stratigraphic framework of the Eastern Pyrenees, southwestern Europe
作者: M. PADELS. CLAUSENJ.J. ÁLVAROJ.M. CASAS M. PADELS. CLAUSENJ.J. ÁLVAROJ.M. CASAS
作者单位: 1Universitat de Barcelona
刊名: Geologica Acta;;Geologica Acta, 2018, Vol.16;;16 (4;;4), pp.339-355;;339-355
来源数据库: Universitat de Barcelona
DOI: 10.1344/GeologicaActa2018.16.4.1;;10.1344/GeologicaActa2018.16.4.1
关键词: LithostratigraphyChronostratigraphyPalaeogeographyCambrianNW Gondwana.LithostratigraphyChronostratigraphyPalaeogeographyCambrianNW Gondwana.
原始语种摘要: The Ediacaran-Lower Ordovician successions exposed in the Eastern Pyrenees are updated and revised based on recent U-Pb zircon radiometric ages, intertonguing relationships of carbonate-dominated strata, and onlapping patterns marking the top of volcano-sedimentary complexes. A stratigraphic comparison with neighbouring pre-Variscan outcrops from the Montagne Noire (southern French Massif Central) and Sardinia is related to i) the absence of Cadomian deformation close to the Ediacaran-Cambrian boundary interval; ii) the presence of an episodic, Cadomian-related, acidic-dominant volcanism related to carbonate production punctuating the Ediacaran-Cambrian transition, similar to that recorded in the northern Montagne Noire; and iii) the lack of Guzhangian (Late Cambrian Epoch 3)...
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关键词翻译
关键词翻译
  • Ordovician 奥陶纪的
  • stratigraphic 地层学的
  • Cambrian 寒武纪的
  • Gondwana 冈瓦纳古陆
  • southwestern 在西南的
  • strata 地层
  • Lower 下部的
  • framework 构架
  • neighbouring 相邻的
  • probably 或许