论文部分内容阅读
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。
In 1978, the two-Triassic boundary line project team in Myhang made measurements of the stratigraphic profile of the Changdian Formation of the Late Permian in Changxing, Zhejiang Province. Various types of fossil and rock specimens were collected. Based on the analysis of the clay mineral composition, the type of assemblage, the vertical distribution and the vertical variation of trace elements in the clay rock at the bottom of Changxing Formation and its upper Triassic Yinkeng Formation, The characteristics of clay minerals and their formation environment were discussed. The boundaries between Permian and Triassic series were described from the perspective of clay minerals.