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首页> 外文期刊>Facies >Oncoid-dwelling foraminifera from Late Jurassic shallow-water carbonates of the Northern Calcareous Alps (Austria and Germany)
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Oncoid-dwelling foraminifera from Late Jurassic shallow-water carbonates of the Northern Calcareous Alps (Austria and Germany)

机译:来自北钙质阿尔卑斯山的侏罗纪晚期浅水碳酸盐岩中的类虫孔虫(奥地利和德国)

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摘要

Oncoidal limestones with different oncoid types are ubiquitous in back-reef open-lagoonal and, to a minor amount, in closed-lagoonal facies of the Late Jurassic Plas_sen Carbonate Platform of the Northern Calcareous Alps. A common feature of the oncoids from moderately to well-agitated open-lagoonal habitats are incorporated small tro_chospiral benthic foraminifers, tentatively assigned to trochamminids, switched between individual micritic lay_ers. Their life style is discussed concluding a specialized feeding on cyanophytes on the outer side of the oncoids and later becoming biomurated by successive sheet formations due to oncoid growing.
机译:在北礁钙质阿尔卑斯山的晚侏罗世Plas_sen碳酸盐岩台地的礁后开礁湖中普遍存在具有不同类癌体的类癌石灰石,其中少量存在。从中等到剧烈搅动的泻湖生境中,类癌的共同特征是并入了小型风沙性底栖有孔虫,暂时将其分配为mm虫,在各个习俗家之间进行切换。对它们的生活方式进行了讨论,包括在类瘤体外侧专门捕食蓝藻,随后由于类瘤体生长而被连续的薄片形成生物腐烂。

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