1) Jinchuan ultramafic intrusion
金川超镁铁质岩体
2) mafic and ultramafic intrusion
镁铁质-超镁铁质岩体
1.
There are about 50 mafic and ultramafic intrusions in this area.
在区内已发现的镁铁质-超镁铁质岩体中,有的含有铜镍矿床或铜镍矿化,有的则不含矿。
3) Ultyamafic inclusions
超镁铁质岩包体
4) ultramafites
[,ʌltrə'mæfaits]
超镁铁质岩体
1.
Geochemistry and Chronology of Ultramafites from the Songshugou Area in Qinling;
秦岭松树沟超镁铁质岩体地球化学及年代学
2.
Geochemical characteristics show ultramafites are depleted, while rocks from the Songshugou dunite body display clear enrichment of highly incompatible elements (Rb .
商南县松树沟超镁铁质岩体位于秦岭造山带商州—丹凤断裂以北,出露面积超过20km2,是中国境内出露最大的阿尔卑斯型橄榄岩体,并以侵位方式与秦岭杂岩接触。
5) mafic-ultramafic
镁铁-超镁铁质岩体
1.
Collecting rock samples from several mafic-ultramafic intrusions in Longshou Mountains and studying the petrochemical compositions,trace elements,rare earth elements,combining with the Sr-Nd isotopes of Jinchuan ultramafic intrusion,the authors compare the geochemical characteristics of typical mafic-ultramafic rocks in Longshou Mountains.
通过龙首山岩带中几个典型镁铁-超镁铁质岩体样品的岩石地球化学分析,对金川超镁铁质岩体与其外围镁铁-超镁铁质岩体的形成演化关系进行探讨,结果发现:这些岩体处于相同的构造环境,样品点整体为亚碱性拉斑玄武岩系列,随M g#值的增加,C aO,A l2O3,N a2O,K2O值具有连续减少的趋势,指示了它们存在连续的岩浆演化关系;稀土与微量元素分析,蛛网图整体具有右倾特征,龙首山岩带中段岩体有明显δEu负异常,东、西段岩体样品有δEu正异常或无异常,暗示中段岩体较外围岩体经历了更完全的分离结晶作用;结合前人对金川所做的S r-N d同位素等资料,证明金川岩体的岩浆源区为富集型地幔。
6) mafic-ultramafic intrusions
镁铁超镁铁质杂岩体
补充资料：岩居川观
1.居于岩穴而观赏川流。形容隐居生活悠闲自适，超然世外。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条