三江盆地七星河区成因地层分析  

AN ANALYSIS OF GENETIC STRATIGRAPHY IN QIXINGHE EXPLORATION AREA,SHANJIANG BASIN

作　　者：邹艳荣[1] 蔡玉兰[1] 王连元[1] 张长生 

机构地区：[1]黑龙江矿业学院

出　　处：《煤田地质与勘探》1996年第1期1-4,共4页Coal Geology & Exploration

摘　　要：区内存在５种等时性地层界面，据此将含煤岩系划分为６个成因单元，１０个亚单元。沉积环境经历了５个演化阶段，其中扇三角洲废弃阶段为最有利的聚煤时期。聚煤的有利部位位于废弃的扇三角洲体之上。here are five types of isochronous stratigraphic interfaces in Qixinghe exploration area,Sanjiang Basin. By Them the coal-bearing sequence is divided into six genetic stratigraphic unites and further into ten subunites. The depositional environment had involved five evolutional stages. Among them the fan-delta abandonment stage was the period most favoured to coal accumulation,and the best place for coal accumulation is on the abandoned fan-delta body.

关 键 词：成因地层 沉积环境 聚煤作用 三江盆地 煤系 

分 类 号：P618.110.2[天文地球—矿床学]