矿业工程研究
礦業工程研究
광업공정연구
MINERAL ENGINEEERING RESEACH
2012年
1期
43-49
,共7页
上二叠统%马河向斜%沉积旋回%潮坪沼泽成煤%标志层
上二疊統%馬河嚮斜%沉積鏇迴%潮坪沼澤成煤%標誌層
상이첩통%마하향사%침적선회%조평소택성매%표지층
upper Permian%Mahe syncline%cycle of sedimentation%coal of tide flat and swamp%marker seam
马河向斜分划为威信段、镇雄段2个区段,待威信段、镇雄段相继施工后,揭露出诸多地质现象,凸显无疑.通过确定其区域特殊位置和收集其大地构造背景资料,结合含煤地层沉积环境及聚煤环境条件,采用4套煤层、7个标志层对比的方法验证,归纳出整个马河向斜构造演化特征以及含煤特性、可采煤层层位及煤层赋存规律,透彻分析聚煤环境对煤层变化的影响.马河向斜聚煤规律的研究不仅具有非常重要的现实意义,而且为类似的向斜构造指明煤层赋存层位和有利勘探方向.
馬河嚮斜分劃為威信段、鎮雄段2箇區段,待威信段、鎮雄段相繼施工後,揭露齣諸多地質現象,凸顯無疑.通過確定其區域特殊位置和收集其大地構造揹景資料,結閤含煤地層沉積環境及聚煤環境條件,採用4套煤層、7箇標誌層對比的方法驗證,歸納齣整箇馬河嚮斜構造縯化特徵以及含煤特性、可採煤層層位及煤層賦存規律,透徹分析聚煤環境對煤層變化的影響.馬河嚮斜聚煤規律的研究不僅具有非常重要的現實意義,而且為類似的嚮斜構造指明煤層賦存層位和有利勘探方嚮.
마하향사분화위위신단、진웅단2개구단,대위신단、진웅단상계시공후,게로출제다지질현상,철현무의.통과학정기구역특수위치화수집기대지구조배경자료,결합함매지층침적배경급취매배경조건,채용4투매층、7개표지층대비적방법험증,귀납출정개마하향사구조연화특정이급함매특성、가채매층층위급매층부존규률,투철분석취매배경대매층변화적영향.마하향사취매규률적연구불부구유비상중요적현실의의,이차위유사적향사구조지명매층부존층위화유리감탐방향.
Mahe syncline is divided into Weixin member and Zhenxiong member.After the course of construction in Weixin and Zhenxiong member,lots of geological phenomenon is highlighted and undoubtedly revealed.The occurrence of coaly-stratum,the layer of minable seam,and the law of occurrence coal seam in the tectonic evolution characteristics of whole Mahe syncline can be generalized through determining the special regional position and collecting its special tectonic background information,combining coaly-stratum sedimentary environment and coal-forming environment condition,and comparing the 4 coal seams and 7 marker seams.A thorough analysis indicates that coal-accumulating environment can affect the change of coal seam.The study of coal-accumulating laws in Mahe syncline not only is of very importantly realistic meaning,but also suggests the occurrence stratigraphic position of coal seam and provides exploration direction for similar syncline structure.
