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首页> 外文期刊>Geologica Carpathica >New geochemical data on fossil wood from the Albian of the Dolomites (Southern Alps, Italy)
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New geochemical data on fossil wood from the Albian of the Dolomites (Southern Alps, Italy)

机译:来自白云岩Albian(意大利南阿尔卑斯山)的化石木材的新地球化学数据

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摘要

Information is provided about organic-matter bearing sediments and fossil drift-wood from the Puez area (Col de Puez, Southern Alps) near Wolkenstein (S. Tyrol, Italy). The locality is located on the Trento Plateau which represents a submarine high during the Lower Cretaceous. Its terpenoid hydrocarbon composition indicates that the wood fragment derived from a conifer belonging to the family Podocarpaceae or Araucariaceae. Intense degradation of OM argues for lengthier drifting. Long-term drifting is also indicated by the infestation of the bivalve Teredo ("ship-worm"). The finding of a fossil tree trunk sheds some light on the early Lower Cretaceous tectonic history of the Trento Plateau and the Dolomites.
机译:提供了有关沃尔肯施泰因州(意大利蒂罗尔州)附近普兹地区(南阿尔卑斯山的普德兹地区)含有机物的沉积物和化石漂流木材的信息。该地区位于特伦托高原上,是下白垩纪海底高处。它的萜类碳氢化合物组成表明木材碎片来自属于罗汉松科或南洋杉科的针叶树。 OM的强烈降解要求更长的漂移时间。双壳类Teredo(“船虫”)的侵袭也表明了长期漂移。化石树干的发现为特伦托高原和白云岩的下白垩纪早期构造历史提供了一些启示。

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