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- 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。
- Epidote may be quite conspicuous. 绿帘石有时相当显著。
- Gneiss is called bastard granite. 片麻岩叫作粗花岗岩。
- The Dashankeng gneiss located in the northeastern Dabie mountains is composed mainly of potassium feldspar, plagioclase and quartz with minor hornblende, biotite and allanite, belonging to monzonitic granitic in composition. 北大别东部大山坑片麻岩主要由钾长石、长石和石英组成,少量角闪石、云母和褐帘石,成分为二长花岗质。
- Archean metamorphic rock, mainly by amphibolite facies of the plagioclase biotite gneiss, amphibolite plagioclase gneiss, biotite change granulite and plagioclase amphibolite, and other components. 太古宙变质岩石，主要由属于角闪岩相的黑云斜长片麻岩、角闪斜长片麻岩、黑云变粒岩和斜长角闪岩等组成。
- The Late Archaean Fuping Group of the Xiaojue region in Pingshan County, Hebei Province contains three main metamorphic rock types, i.e. K felspar leucoleptite, semipelitic biotite leptite and biotite gneiss, and hornblendic rocks. 河北平山小觉地区晚太古代阜平群含有三种主要表壳岩性质的变质岩类，即钾长浅粒岩类，黑云变粒岩－片麻岩类和角闪质岩石类。
- The zircons (sample No. F103) from biotite plagioclase gneiss of the Lower Fuping Group yield an up intercept age of 2 484 Ma and a concordia age of 2 332 Ma, interpreted as crystallization and anatexis timing, respectively. 结果前者得到 1) ( 2 4 84± 37)Ma不一致线上交点年龄 ,被认为是阜平片麻岩深成结晶年龄 ;
- Also found in the belt are phlogopite tremolite schist, biotite (-bearing) plagioclase amphibolite, dioritic gneiss, meta-quartz dioritic rock, fine-grained trondhjemite, adamellite, pegmatitic vein. 此外还有金云母透闪石岩、(含)黑云斜长角闪岩、闪长质片麻岩、变石英闪长质岩石、细粒奥长花岗岩、二长花岗岩、伟晶岩脉等。
- 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。
- So the dark mica in this granite should be called biotite. 那么,在这块花岗岩中的黑色云母类矿物就应当叫做黑云母了。
- A ore contains 74% wollastonite, 10% epidote, 8% quartz, 7% calcite. 某硅灰石矿硅灰石含量约占74%25,杂质矿物主要为绿帘石约占10%25、石英占8%25、方解石占7%25。
- The REE of breccia biotite schist represents feature of oceanic tholeiite. 角砾状黑云母片岩的REE具有洋脊拉斑玄武岩特征；
- The biotite adamellite is the main metallogenetic rock body in the orefield. 晋宁晚期的岩浆活动强烈,黑云二长花岗岩是矿区主要成矿岩体。
- 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。
- Biotite is a subordinate constituent of the mafic and ultramafic rocks generally. 黑云母一般是镁铁质及超镁铁质岩石中的次要成分。
- Any of various altered basic igneous rocks colored green by chlorite, hornblende, or epidote. 绿岩因含有绿泥石、角闪石或绿帘石而呈绿色的任一种变质火成岩
- 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。
- Early Yanshanian intrusions are mainly adamellite,biotite K-feldspar granite with small amount of granodiorite. 燕山早期侵入岩以二长花岗岩、黑云钾长花岗岩为主,其次为花岗闪长岩。
- Any of various altered basic igneous rocks colored green by chlorite,hornblende,or epidote. 绿岩因含有绿泥石、角闪石或绿帘石而呈绿色的任一种变质火成岩。
