| 新田宁远道县一带玄武质火山岩的地球化学研究 |
| |
| 引用本文： | 黄国祥.新田宁远道县一带玄武质火山岩的地球化学研究[J].湖南地质,1989,8(3):33-38. |
| |
| 作者姓名： | 黄国祥 |
| |
| 作者单位： | 长沙水电师范学院地理系 长沙410007 |
| |
| 摘 要： | 本文阐述了该区玄武质火山岩及其中包体的微量元素及同位素地球化学特征,并对玄武岩浆成因与演化进行了探讨。玄武岩与其中的包体具有不同的过渡金属元素分配型式。二辉橄榄岩包体具亏损地幔岩性质。玄武岩稀土元素的配分特点与世界上典型的大陆裂谷型玄武岩相似。锶、铅、氧同位素的初步研究结果对岩浆的幔源性质及所经受的同化混染作用提供了一些线索。
|
| 关 键 词： | 玄武岩 火山岩 地球化学 |
A GEOCHEMICAL STUDY OF THE BASALTIC VOLCANIC ROCKS IN THE ZONE FROM XINTIAN NINGYUAN TO DAOXIAN |
| |
| Huang Guoxiang.A GEOCHEMICAL STUDY OF THE BASALTIC VOLCANIC ROCKS IN THE ZONE FROM XINTIAN NINGYUAN TO DAOXIAN[J].Hunan Geology,1989,8(3):33-38. |
| |
| Authors: | Huang Guoxiang |
| |
| Abstract: | This paper deals with the element and isotope geochemical feature of the basaltic volcanic rocks and its inclosures in southwestern Hunan. The origin and evolution of the basaltic magma are discussed. The basalt and its inclosure have different transition-metal distribution patterns, of which the lherzolite inclosure bears the character of depleted pyrolite. The REE bistribution pattern of the basalt is similar to that of the typical continental rift basalt in the world. The preliminary results of strontium. lead and oxygen isotope studies has provided some clues to the mantle origin of the magma and to the assimilation and hybridization it undergoes. |
| |
| Keywords: | Basalt Anatectic inclosure Depleted pyrolite Partial melting Assimilation and hybridization |
| 本文献已被 CNKI 维普 等数据库收录！ |
