浙江长兴煤山二叠-三叠系混生层1中微球粒的发现及其意义Discovery of microspherules from the Permo-Triassic mixed fauna bed No. 1 of Meishan in Changxing, Zhejiang and its significance
何锦文
摘要(Abstract)：
<正> 浙江长兴煤山是中国南部上二叠统长兴阶和二叠、三叠系界线层型剖面(共A,B,C,D,E,Z六条剖面)的所在地。孙亦因等(1984)在D剖面的界线粘土及其上覆的灰黑色泥岩中发现铱异常,提出了二叠、三叠纪交替时可能发生了一次地外来的陨击事件。然而,人们更关心的似乎是作为铱异常物质来源最可靠证据的宇宙尘或微玻陨石是否也存
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基金项目(Foundation):
作者(Author): 何锦文
DOI: 10.19839/j.cnki.dcxzz.1985.04.008
参考文献(References)：
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