长兴阶层型剖面及殷坑组底部的粘土矿物——兼论二迭、三迭系的分界
何锦文
摘要(Abstract)：
<正> 1978年,我所二、三叠系界线专题队在浙江长兴测制了晚二迭世长兴阶的层型剖面,系统采集了各类化石和岩石标本。本文将通过长兴阶及其上覆下三叠统殷坑组底部各层粘土岩中粘土矿物成分、组合类型、纵向分布以及微量元素垂直变化规律等的分析研究,对二、三叠系界线处的粘土矿物特征及其形成环境进行了初步探讨,并从粘土矿物的角度阐述了二叠系与三迭系界线的性质。
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基金项目(Foundation):
作者(Author): 何锦文
DOI: 10.19839/j.cnki.dcxzz.1981.03.007
参考文献(References)：
- 杨万容、江纳言。1980:浙江长兴长兴组火山岩和放射虫的发现。地层学杂志,4卷2期。
- Carroll, D., 1970: Clay minerals; A guide to their X-ray identification. Geol. Soc. Am., Spec. paper 126．
- Hewer, J. and Mowatt, T. C., 1966: The mineralogy of illites and mixed-layer illite/montmorillonites. Am. Min., V. 51, no. 5-6, p. 825--854．
- Levinson, A. A. and Ludwick, J. C., 1966 : Speculation on the incorporation of boron into argillaceous sediment. Geochim. et Cosmochim. Acta, V. 30, p. 855--861．
- Shimp, N. F., Witters J., Pottre, P. E. and Schleicher, J. A., 1969: Distinguishing marine and freshwater muds. Jour. Geol., V. 77, p. 566--580．
- Thorez, J., 1976: Practical identification of clay minerals. G. Lelotte., Dison, Belgque.
- Weaver, C. E., 1956: The distribution and identification of mixed-layer clay in sedimentary rocks. Am. Min., V. 41, no. 3-4, p. 202-221．
- ----, 1957: The clay petrology of sediments.Proc. 6th Nat. Conf. Clays Clay Min. 154．