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- 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。
- Jiangyema chromite deposit lies in the Laangcuo rock body of which locates in the western Yaluzangbujiang ultramafic rock belt. 姜叶马铬铁矿产于雅鲁藏布江超镁铁质岩带的西段拉昂错岩体之中,为富铬型豆荚状铬铁矿。
- Their REE and microelement's composition exist the common characteristics with the world known lamproites.There are many ultramafic rock bodies. 稀土元素、微量元素组成与世界已知钾镁煌斑岩具有相同特征。
- One sample of ultramafic rock seemed to be a product of Jinningian island arc, which was discovered by drilling in central Tarim. 一件晋宁期超基性岩样品显示出岛弧岩浆岩的性质，与塔里木中部地区的闪长岩和花岗闪长岩应同为晋宁期岛弧的记录。
- Three sulphide zones with platinum group elements(PGE) mineralization have been discovered in the upper part of the ultramafic rock formations of the Great Dyke,Zimbabwe. 大岩墙超铁镁质岩层上部主要有三个硫化物带,铂族元素(PGE)主要分布在这些矿带中,尤其富集在硫化物带的底部。
- Jiangyema chromite deposit lies in the Laangcuo rock body of which locates in the western Yaluzangbujiang ultramafic rock belt.It is a sort of the Cr-rich podiform chromite deposit. 摘要姜叶马铬铁矿产于雅鲁藏布江超镁铁质岩带的西段拉昂错岩体之中，为富铬型豆荚状铬铁矿。
- On the basis of summarizing former relative works, this paper manily discusses the PGE distribution in ultramafic rock and the behaviour during partial melting, crystal frac-tionation, and alteration. 在总结前人工作的基础上,论述了PGE在超镁铁岩中的分布范围以及在部分熔融、结晶分异和蚀变作用过程中的行为规律。
- 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。
- With regard to the oxide minerals, chromite is almost entirely contained in the olivine-rich ultramafic rocks in the lower part of the intrusion. 关于氧化矿物，铬铁矿几乎全部含于侵入体下部的富橄榄石的超镁铁质岩石中。
- The formation of rodingites depends on the serpentinization and degree of calcic metasomatism,and has no relationship for genetical types,tectonic setting and age of ultramafic rocks. 那种将异剥钙榴岩片面地看成蛇绿岩的组成部分或者作为鉴别蛇绿岩辅助标志的观点需要改正。
- The area is interpreted as the southern part of the suture between East and West Gondwana blocks due to the appearance of ophiolites, eclogite-facies ultramafic rocks and thrust-nappe structures. 东非造山带的南延部分主要出露于吕措-霍尔姆湾-毛德王后地-沙克尔顿岭地区，其内发育蛇绿岩、榴辉岩相超镁铁岩及逆冲-推覆构造，因而被解释为东、西冈瓦纳陆块拼合的缝合线。
- 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。
- Keywords ultramafic rock chromite Mssbaur spectra pyrolite; 超镁铁岩;铬铁矿;穆斯堡尔谱;地幔岩;
- Late Archaean Mafic ultramafic Rocks from the Wutaishan, Shanxi Province: a Possible Ophiolite Melange 山西省五台山晚太古代镁铁质-超镁铁质岩: 一种可能的古蛇绿混杂岩
- Keywords Ultramafic rock;Chromite;Geology;Genesis :Pyrolite; 超镁铁岩;铬铁矿;地质;成因;地幔岩;
- Keywords preconcentration neutron activation analysis;REE;ultramafic rock; 预浓集中子活化分析;稀土元素;超镁铁质岩;
- The rock was honeycombed with passages. 岩石上有许多蜂窝状的小孔。
- Many young rock hounds grow up to be geologists. 许许多多爱好收集岩石的少年，长大后成了地质学家。
- The climber had to negotiate a steep rock face. 那攀登者得攀越一陡峭岩石。
- This layer of rock contains a lot of flint. 这一岩层中有大量燧石。
