金海洋矿区为朔州原有小煤矿资源整合后的矿区,为了解决多个采区煤层编号不统一,煤层对比不严谨的问题,从研究区域沉积环境及矿区含煤地层的岩性特征、微量元素特征等入手,绘制矿区岩相古地理图,划分矿区沉积旋回,并以此为基准,运用岩性标志、物性参数、测井曲线特征等方法有效划分各煤层,并进行追踪对比。研究认为,该区太原组主要分3个沉积旋回:第1旋回为太原组底部潮坪相,沉积了稳定的11号煤,11号煤呈西厚东薄、北厚南薄的趋势;第2旋回属于泻湖潮坪相,沉积了全区稳定的9号煤,在区内物源方向及海侵海退方向影响下,9号煤层呈西薄东厚的NE向展布;第3旋回为太原组顶部的河控浅水三角洲平原(水下)相,多次沉积薄厚不均的煤层。

Due to Jinhaiyang Mining Area is a new mining area based on the integration of the previous small mines in Shuozhou, in order to solve inconsistent sea m numbers in several mining blocks and less rigorous comparison on seams, from the sedimentary environment of the study area, the lithology features and trace elem ent features of the coal measures in the mining area, a lithofacies palaeogeography map was drawn and the sedimentary cycle in the mining area was divided.Taking th e above stated as the criterion, the lithology mark, property parameters and logging curve features were applied to effectively divide each seam and to the tracing comp arison.The study held that Taiyuan Formation in the mining area was mainly divided into three sedimentary cycles.The first cycle was the tidal flat facies at the bottom 0 f Taiyuan Formation and there was a stable No.11 seam deposited.No.11 seam was in a tendency of thick in west, thin in east, north in thick and south in thin.The secon d cycle was a lagoon tidal flat facies and there was a full stable No.9 seam in the mining area.Under the influences of the provenance direction and the marine transgre ssion and regression direction, No.9 seam was thin in west and think in east and spreading in north and east directions.The third cycle was river control shallow water d elta plain (under water) facies at the top of Taiyuan Formation and there was a seam with multi sedimentations and uneven thick and thin thickness.