中国矿业
中國礦業
중국광업
CHINA MINING MAGAZINE
2013年
7期
131-134
,共4页
永夏煤炭矿区%煤层赋存%古地理%沉积环境%构造及岩浆活动
永夏煤炭礦區%煤層賦存%古地理%沉積環境%構造及巖漿活動
영하매탄광구%매층부존%고지리%침적배경%구조급암장활동
Yongxia coal mining area%coal seams occurrence%paleogeographic%sedimentary environment%structural and magmatic activity
该区煤层形成于石炭二叠系，煤层分布主要受古地理及沉积环境、断层褶皱构造以及岩浆活动影响。潮坪和三角洲相沉积体系决定了本区煤层厚而稳定，多可采，具有低灰、低磷、低硫特点；煤层分布于永城复背斜两翼的次级构造中，断层切割形成的坳陷使煤层得以保存，为井田划分依据，隆起区煤层则遭到剥蚀；而燕山期的岩浆侵入作用使煤层局部变质为天然焦或焦岩混合物。
該區煤層形成于石炭二疊繫，煤層分佈主要受古地理及沉積環境、斷層褶皺構造以及巖漿活動影響。潮坪和三角洲相沉積體繫決定瞭本區煤層厚而穩定，多可採，具有低灰、低燐、低硫特點；煤層分佈于永城複揹斜兩翼的次級構造中，斷層切割形成的坳陷使煤層得以保存，為井田劃分依據，隆起區煤層則遭到剝蝕；而燕山期的巖漿侵入作用使煤層跼部變質為天然焦或焦巖混閤物。
해구매층형성우석탄이첩계，매층분포주요수고지리급침적배경、단층습추구조이급암장활동영향。조평화삼각주상침적체계결정료본구매층후이은정，다가채，구유저회、저린、저류특점；매층분포우영성복배사량익적차급구조중，단층절할형성적요함사매층득이보존，위정전화분의거，륭기구매층칙조도박식；이연산기적암장침입작용사매층국부변질위천연초혹초암혼합물。
The coal seam of the study area formed in the Carboniferous and Permian ,coal seam distribution is mainly affected by the paleogeographic and sedimentary environment ,fold fault and magmatic activity .Tidal flat and delta depositional system determines the thick coal seam and stability .The coal is many mining ,with low ash ,low phosphorus and low sulfur .The coal seam located in the secondary structure of Yongcheng's anticlinorium wings .The coal canbe preserved for the formation of faults cutting depression , as the basis of field dividing .The coal seam in theupliftareahasbeenworn away .But since the magmatism at yanshanperiod ,the coal was turned into the natural focal or the mixture of natural focal and rock .
