围岩

The main ore-bearing country rocks are aregillaceous limestone and marmarization limestone of upper-middle Cambrian.

其中寒武系上、中统大理岩化灰岩、泥质灰岩为主要含矿围岩。

Distribution and transfusion of the geostatic pressure variate in company with mining space in underground mining.

地下中地压分布与转移随空间动而动,不同顺序会带来不同围岩稳定性。

The lead isotope study shows that ores of the Mujiazhuang copper deposit and the host rocks contain very high radiogenic lead.

研究表明，穆家庄铜矿矿石铅和近矿围岩岩石铅有极高放射性成因铅特点。

They can be divided into low sulphidation and high sulphidation types,with typical wall rock altera tion and alteration zonation of epit hermal de-posit.

这些矿床可分为高硫化型和低硫化型,且都有典型围岩蚀、蚀分带等矿床特征。

The Au content of column held nonhydrocarbon,nonhydrocarbon,asphaltene and kerogen in Jinya Gold Deposits in Guangxi province was measured by the Plasma actinometer (ICP)in the paper.

用等离子体光度计（ICP）测定了广西金牙矿区柱留非烃、非烃、沥青质和干酪根中金含量，对矿体和围岩进行了比较。

In the ductile shear belt,the alteration and zonation of tectonite and wall rock are obviously,and miliolite belt,quartz,iron pyrite,ankerite alteration belt and gold mineralization belt are trinity.

韧性剪切带内构造岩、围岩蚀分带明,有典型“(超)糜棱岩—石英、黄铁矿、铁白云石化—金矿化”等“三位一体”成矿特征。

It is found that the rational located destressing boreholes can induce structural failure of the surrounding rock-mass,consequently the high stress move deeply in the rock-mass,and the stres...

在卸压孔和锚网联合支护后改善了围岩附近应力环境,改了围岩破坏时空次序,对控制围岩形和破坏有突出优越性.

Gold quartz vein is the major orebody which is controlled by E-W-extrusion fracture zone in the Damiaozi gold mineralized district.The granite-porphyry,spessartite and diabase are the major wallrock.

大庙子金矿化区内金矿体以石英脉型为主,矿体产出受东西向挤压破碎带控制,花岗斑岩和闪斜煌斑岩、辉绿岩是矿体主要围岩。

There is an obvious rock zonation from the middle to bothsides of the structural shatter zone, generally from marialite orebody through diopside-felsite,biotite-albitite to the host Proterozoic rocks.

构造破碎带岩石有明对称分带性：破碎带中心为钠柱石矿体，向两侧依次为榍石透辉石长英岩带、黑云母钠长岩带，逐渐过渡为围岩。钠柱石矿成因类型为沿构造破碎带产出热液交代脉型。

After several years to jumbolter research,the hard rocks always present in the soft ones in the wall rock procedure using jumbolter,which results in changing the boring tool during the procedure.

经过几年对锚杆钻机跟踪研究,发现锚杆钻机在围岩作业中常遇到软岩中有硬岩夹层现象,造成施工过程经常更换钻问题。

In the geological condition of shallow buried, soft rock, and carst, et al. the mother rock of these kinds of tunnel must be paid attention in the whole construction stage.

在浅埋、围岩软弱、岩溶等复杂地质条件下，这类隧道在不同施工阶段围岩稳定性问题备受关注。