摘要
针对苏南地区自加里东构造运动以来经受多次构造活动,区域构造特征复杂的特点,在对研究区地质资料进行系统分析和野外实际调查的基础上,以区域构造演化为主线,从动态的、历史的角度分析,深入探讨了该区区域构造演化特征及其对煤层赋存的控制作用。研究结果表明,研究区构造演化对煤田的控制作用显著,主要表现在对煤田的形成、煤层分布、埋深和煤质等4个方面;从印支晚期至燕山晚期,该区发生的复杂区域构造运动从根本上改变了研究区煤系的分布格局,不均匀的沉降则形成煤层东西分布的差异,最终形成了现今的煤系现状。
In Sunan Area,since the Caledonian tectonic movement,there were many tectonic activities occurred and the regional tectonic features were complicated.Based on the systematic analysis on the regional geological information and the site actual investigation,taking the regional tectonic evolution as the main line,from the dynamic and historical analysis,the paper had a detail discussion on the regional tectonic evolution features and the control effect to the seam deposit.The study results showed that the tectonic evolution in the study area would have the control effect to the coalfield obviously,mainly including the coalfield formation,seam distribution,depth and coal quality.From the late Indo-Chinaperiod to the later Yanshan period,the complicated regional tectonic movement occurred in the region fundamentally changed the distribution pattern of the coal base in the study region.The different seam distribution in east and west was caused by the even subsidence and the present coal base status finally formed.
出处
《煤炭科学技术》
CAS
北大核心
2011年第7期93-97,共5页
Coal Science and Technology
基金
中央高校基本科研业务费专项资金资助项目(2010LKDZ07)
关键词
苏南地区
构造演化
构造控煤
板缘地带
推覆构造
Sunan Area
tectonic evolution
tectonic controlled seam
plate boundary zone
nappe tectonic
