铁法盆地中新生代构造聚煤与控煤规律  

Tectonic coal controlling patterns and coal-forming law in Mesozoic-Cenozoic in Tiefa basin

作　　者：张亚明[1] 白旭辉[1] 

机构地区：[1]辽宁工程技术大学资源与环境工程学院,辽宁阜新123000

出　　处：《辽宁工程技术大学学报（自然科学版）》2009年第A02期76-78,共3页Journal of Liaoning Technical University (Natural Science)

摘　　要：针对铁法盆地的成生、演化与发生在中国东部中生代以来的构造运动密不可分,研究其构造聚煤、控煤规律对中国东北其它同类型中生代盆地的老矿挖潜具有一定的指导意义;开展了铁法盆地构造演化、成盆期构造的聚煤作用、成盆后构造的控煤作用的研究;研究得出:铁法盆地属于晚中生代北北东向单壁断陷聚煤盆地,盆地西缘北北东向的冮屯断裂对盆地成生、演化起到了重要的控制作用,盆地自西向东依次划分为西缘强烈断陷带、偏西部较强烈断陷带、中部较缓慢沉降带和东部缓慢沉降带,而偏西部的较强烈断陷带与成盆期北西西向褶皱的交汇部位有利于聚煤,而成盆后构造对煤层赋存的影响主要表现在背斜使煤层赋存变浅,向斜使煤层赋存变深。In view of fact that the formation and evolution of Tiefa basin inextricably was linked with tectonic movements since Mesozoic in eastern China, study on its tectonic coal controlling patterns and coal-forming law has some guiding significance for tapping the potential of old mines with the same types formed in the basins in Mesozoic; so the research has been made of the tectonic evolution of Tiefa, roles of tectonic coal--accumulating in basin-forming and tectonic controlling coal in post basin-forming; the conclusion can be drawn that Tiefa basin is a single-walled-faulted coal basin in NNE in the late Mesozoic, Gangtun fracture in N-NE in the west of the basin play an important role in the form and evolution of the basin. The basin consists of 4 parts from west to east： the strongest fault zone in the west, the western-stronger fault zone, the central belt of slower settlement and the slow settlement in the east. The convergence of the western-stronger fault zone with folds in NWW in the period of forming of the basin was conducive to coal accumulation, but the influence of structure after the forming of the basin on the coal is that anticline made the coal-seam shallower but syncline made the coal-seam deeper.

关 键 词：铁法盆地 中新生代 造聚煤 构造控煤 

分 类 号：P536[天文地球—古生物学与地层学]