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- pelitic gneiss 泥质片麻岩
- Gneiss is called bastard granite. 片麻岩叫作粗花岗岩。
- Host rocks are pelitic siltstone and silty mudstone. 矿体明显受断裂控制。
- U-Pb dating of zircon from gneiss at Nanhuang in East Anhui. 皖东南黄片麻岩的锆石U-Pb年龄。
- pelite gneissn. 泥片麻岩
- The types of mineralized rocks are fine grained biotite gneiss and silicalites. 矿化类型为含金黑云变粒岩型、含金硅质岩型。
- Gneiss, a metamorphic rock, can be commonly found in Precambrian areas. 片麻岩,一种变质岩,通常在前寒武纪地层中出现。
- The pyroclastic rock fragments comprise quartzite, schist, gneiss, basalt, andesite, rhyolite and quartz. 火成岩的碎块成分主要为石英岩、岩、麻岩、武岩、山岩和流纹岩.
- The nickel mineralization is contained in a layered basic massif surrounded and underlain by an Archean gneiss complex. 此处镍矿化产于一层状基性岩块内,其四周和下面都为太古代片麻岩杂岩围绕。
- The deformation and stability mechanisms of pelitic soft rock drift under rich water condition are more complicated than those of the general ones. 富水条件下泥质软岩巷道破坏及稳定性机制比一般软岩巷道更复杂;不仅需要采用多种复合支护控制围岩非线性大变形;还必须进一步控制其泥化进程.
- Zircon U-Pb dating of gneiss from Shizhuhe in North Dabie and its geologic implications. 大别造山带北部石竹河片麻岩的锆石U-Pb年龄及其地质意义。
- Rocks to the north and south of the gneiss zone are lithologically and structurally distinct from it. 片麻岩带南北两侧的岩石,在岩性上及构造上都和它大不相同。
- The engineering behavior of whole-weathered pelitic siltstone can not be evaluated rational in criterion, which lead to inconvinence and difficulty for technicians. 泥质粉砂岩全风化工程性质在有关规范中均未进行定量评价,这给工程技术人员带来困难与不便。
- Felsic gneiss is the most widely distributed rock type in Archean metamorphic complex areas. 长英质片麻岩是太古宙变质杂岩区最主要的岩石类型。
- Granulite - the metamorphic gneiss district level are mostly granulite facies to senior amphibolite facies. 麻粒岩-片麻岩区的变质程度多属麻粒岩相到高级角闪岩相。
- Political sheep's step-by-step a large number of fossils unearthed in the county soil Ma Ali after rural village in the middle of sallow pelitic siltstone. 步氏和政羊化石大量出土于广河县阿力麻土乡后山村,产于灰黄色泥质粉砂岩中。
- Some problems and suggestions about the geological survey and study in Archean felsic gneiss terrains. 太古宙长英质片麻岩区地质调查研究中存在的一些问题和建议
- Paleocene Mingyuefeng Formation was filled by shallow sea and deltaic arenaceous pelitic deposit, which is identified as an important oil/gas bearing segment in Lishui sag. 摘要丽水凹陷古新统明月峰组充填了一套滨浅海-三角洲砂泥质沉积,是重要的含油气层段。
- Porphyry, Luserna stone, sandstone, Brasilian quartzite, slate Crystalline granite, gneiss,... 分类标题:屋顶石材|斑岩...
- The oldest known intact rock is the four-billion-year-old Acasta gneiss in Canada's Northwest Territories. 目前所知地球上最古老的完整岩石,是加拿大西北地区的艾加斯塔片麻岩,约在40亿年前生成。