摘要
概述苏北Ｃ－Ｐ系灰岩层的发育、分布规律和“无名灰岩”命名问题。简介酸性火山事件等时层的概念和自然测井曲线的应用。着重介绍各等时层自然曲线特征与邻省比较求证。论证下层“无名灰岩”（Ｌ０）的实质，相当李庄东部矿区第九层灰岩。并试探与邻省Ｃ－Ｐ系有关灰岩层对比。
As a new study method, the isotime layer and natural curve can be used for the correlation of coal and and rocks. The basis of the method is to combine new results of event stratigraphy with advanced naturai well log. The author expounds the development and distribution of Permo Carboniferous limestone and naming problem of unnamed limestone in the northern area of Jiangsu. The features of natural curve of various isotime strata and their correlation with one of neighbouring provinces have been mainly discussed on the basis of concepts of isotime layer of acidic vlocanic rock events and application of natural well log. The author deems that the lower unnamed limestone(L 0) is corresponding to NO.9 limestone layer in the eastern mining district of Lizhuang in the north Jiangsu. Also,a preliminary correlation of unnamed limestone in the area with Permo Carboniferous limestone of neighboring provinces is carried out.
出处
《江苏地质》
1998年第1期41-45,共5页
Jiangsu Geology
关键词
C-P系
灰岩
无名灰岩
等时层
γ曲线标志
Isotime layer Unnamed limestone Permo Carboniferous North Jiangsu
