1) Longshou Mountains
龙首山
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。
2.
Study on stratigraphy,petrogeochemistry,chronology and so on,the authors prove Longshou mountains is on inner-continent rifting background during Proterozoic.
作者综述了龙首山地区元古宙的地层岩性组合、岩石地球化学、年代学等特征,证明龙首山地区在整个元古宙期间的地质构造背景为大陆裂谷环境。
2) Longshoushan Group
龙首山岩群
1.
Discussion on the Petrogenic Time of Longshoushan Group, Gansu Province;
龙首山岩群成岩时代探讨
2.
The Longshoushan Group of Paleoproterozoic age in the Dongdashan district is a metamorphic terrane composed of metamorphic rocks of amphibolite facies.
东大山地区龙首山岩群形成于早元古代,是一套经角闪岩相变质改造的变质地质体。
3) Southern Longshou fault
龙首山南缘断裂
4) Carboniferous System from Longshoushan, Gansu
龙首山石炭纪地层
5) dragon with two heads
双首龙
1.
Because of the remote era and deficient knowledge,the people lived in ancient times believed that the rainbow was dragon with two heads on the basis of their imagination.
由于时代的久远和知识的匮乏,先民基于对虹的想像认为虹是双首龙,先民观念中的虹与远古龙蛇类动物图腾崇拜有着密切的关系。
6) pig dragon
猪首龙
补充资料：龙首山
见走廊北山。
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