中国煤炭地质
中國煤炭地質
중국매탄지질
COAL GEOLOGY OF CHINA
2014年
5期
18-20,29
,共4页
岩浆岩%矿物%1煤层%潘三矿%淮南煤田
巖漿巖%礦物%1煤層%潘三礦%淮南煤田
암장암%광물%1매층%반삼광%회남매전
magmatic rock%mineral%coal No.1%Panji No.3 coalmine%Huainan coalfield
通过对淮南煤田潘三煤矿1煤层中的侵入岩体剖面样品的系统采集，采用X射线荧光光谱（XRF）和光学显微镜等手段，研究了岩浆岩在垂向上岩性和矿物的演化特征。结果表明：岩浆岩从剖面下部到上部，岩性由基性过渡到中性，到上部的酸性；且其矿物组成亦呈现规律性分布：在顶底部有少量蚀变产物绿泥石和热液成因后生黄铁矿；与煤层接触的岩浆岩，裂隙发育，多为热液成因黄铁矿和石英充填；岩浆岩中钾长石蚀变程度从岩床中部向顶底部逐渐增强，岩床中部长石晶形完好，顶底部长石蚀变，受岩浆热液作用影响较大。
通過對淮南煤田潘三煤礦1煤層中的侵入巖體剖麵樣品的繫統採集，採用X射線熒光光譜（XRF）和光學顯微鏡等手段，研究瞭巖漿巖在垂嚮上巖性和礦物的縯化特徵。結果錶明：巖漿巖從剖麵下部到上部，巖性由基性過渡到中性，到上部的痠性；且其礦物組成亦呈現規律性分佈：在頂底部有少量蝕變產物綠泥石和熱液成因後生黃鐵礦；與煤層接觸的巖漿巖，裂隙髮育，多為熱液成因黃鐵礦和石英充填；巖漿巖中鉀長石蝕變程度從巖床中部嚮頂底部逐漸增彊，巖床中部長石晶形完好，頂底部長石蝕變，受巖漿熱液作用影響較大。
통과대회남매전반삼매광1매층중적침입암체부면양품적계통채집，채용X사선형광광보（XRF）화광학현미경등수단，연구료암장암재수향상암성화광물적연화특정。결과표명：암장암종부면하부도상부，암성유기성과도도중성，도상부적산성；차기광물조성역정현규률성분포：재정저부유소량식변산물록니석화열액성인후생황철광；여매층접촉적암장암，렬극발육，다위열액성인황철광화석영충전；암장암중갑장석식변정도종암상중부향정저부축점증강，암상중부장석정형완호，정저부장석식변，수암장열액작용영향교대。
Through the systematic sampling of intrusive rock section in coal No.1, Panji No.3 coalmine, Huainan coalfield, using mea-sures of X-ray fluorescence (XRF) and optical microscopy have studied the vertical lithology and mineral evolution characteristics of magmatic rocks. The result has shown:from bottom to top, lithology of magmatic rocks transits gradually from basic to neutral finally to acidic upper part. Their mineral compositions also present regular distribution:in top and bottom parts have a few altered chlorite and hydrothermal epigenetic pyrite;magmatic rocks contact coal seams have developed fissures and many filled with hydrothermal pyrite and quartz;alteration degree of potash feldspar gradually increasing from middle part of sills to top and bottom, crystal form of feldspar in middle part is in good condition, while altered in top and bottom parts because of greater impacts from hydrothermal process.
