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首页> 外文期刊>Journal of Asian earth sciences >The Wuchiapingian-Changhsingian boundary (Upper Permian) at Meishan of Changxing County, South China
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The Wuchiapingian-Changhsingian boundary (Upper Permian) at Meishan of Changxing County, South China

机译：中国南部长兴县梅山的五叠坪-长兴盆地边界（上二叠统）

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摘要

Section D at Meishan, Changxing County in the Zhejiang Province, China, has been extensively studied in various aspects of the stratigraphy during the past 20 years. It was ratified by the International Union of Geological Sciences (IUGS) as the Global Standard Stratotype Section and Point (GSSP) for the Permian-Triassic boundary in 2000, and is also a potential stratotype for the Wuchiapingian-Changhsingian boundary. However, the contact relationship between the Longtan (Wuchiapingian) and Changxing (Chainghsingian) formations has been a controversial subject for years. Recent studies on Section C, about 300 m west of Section D, at Meishan confirm a complete depositional succession around the boundary and suggest that the proposed boundary level, the FAD of Clarkina wangi within the lineage from C. longicuspidata to C. wangi, is consistent with the first appearance of the index Changhsingian fusulinid Palaeofusulina sinensis and tapashanitid ammonoids.
机译：在过去的20年中，对中国浙江省长兴县眉山D区的地层进行了广泛研究。它于2000年被国际地质科学联盟（IUGS）批准为二叠纪-三叠纪界线的全球标准地层剖面和点（GSSP），并且也是Wuchiapingian-Changhsingian界线的潜在地层。然而，多年以来，龙潭（五岔坪）组与长兴（七星系）组之间的接触关系一直是一个有争议的话题。最近对眉山D区以西300 m处C区的研究证实了边界周围的完整沉积演替，并表明拟议的边界水平，即长枝。鱼到wangi谱系中的Clarkina wangi FAD为与昌兴氏镰刀菌新孢子虫和塔帕尼类针虫类铵盐的首次出现相一致。

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