|
|||||
|
|
| 大别山菖蒲硬玉石英岩退变质作用过程中岩石地球化学的变异 | |
| 引用本文： | 苏文,徐树桐,吴维平,石永红,江来利,刘怡灿. 大别山菖蒲硬玉石英岩退变质作用过程中岩石地球化学的变异[J]. 矿物岩石, 2000, 20(2): 8-13 |
| 作者姓名： | 苏文 徐树桐 吴维平 石永红 江来利 刘怡灿 |
| 作者单位： | 1. 南京大学国家重点成矿实验室,南京,210008;安徽地质调查院,合肥,230001 2. 南京大学国家重点成矿实验室,南京,210008 3. 安徽地质调查院,合肥,230001 |
| 基金项目： | 国家自然科学基金重大项目(49794041,49572150)，国土资源部，南京大学国家重点成矿实验室和安徽省地质矿产局资助。 |
| 摘 要： | 在大别山菖蒲地区新鲜硬玉石英岩逐步退变为片麻岩的变质作用过程中，其岩相学以及地球化学元素发生了一系列有规律的变化。ＳｉＯ２，ＦｅＯ，微量元素Ｂａ，Ｚｒ，Ｇａ以及稀土元素Ｌａ，Ｃｅ，Ｐｒ，Ｎｄ，Ｓｍ，Ｅｕ逐步升高，而ＴｉＯ２，Ｎａ２Ｏ，Ｆｅ２Ｏ３微量元素Ｒｂ，Ｙ，Ｎｂ以及稀土元素Ｇｄ，Ｔｂ，Ｄｙ，Ｈｏ，Ｅｒ，Ｔｍ，Ｙｂ则逐步降低。这反映了矿物晶内的元素的迁移以及外来流体的参与在一定的程度上制约一岩相 |
| 关 键 词： | 地球化学变异 退变质作用 硬玉石英岩 大别山 |
| 文章编号： | 1001-6872(2000)02-0008-13 |
GEOCHEMICAL VARIATION OF JADEITE-QUARTZITE IN THE CHANGPU OF DABIE MOUNTAINS DURING RETROGRESSIVE METAMORPHISM |
|
| SU Wen,XU Shu-tong,WU Wei-ping,SHI Yong-hong,JIANG Lai-li,LIU Yi-can. GEOCHEMICAL VARIATION OF JADEITE-QUARTZITE IN THE CHANGPU OF DABIE MOUNTAINS DURING RETROGRESSIVE METAMORPHISM[J]. Journal of Mineralogy and Petrology, 2000, 20(2): 8-13 | |
| Authors: | SU Wen XU Shu-tong WU Wei-ping SHI Yong-hong JIANG Lai-li LIU Yi-can |
| Affiliation: | SU Wen,XU Shu-tong,WU Wei-ping;(Nanjing University, Nanjing 210008);SHI Yong-hong,JIANG Lai-li,LIU Yi-can;(Anhui Institute of Geology, Hefei 230001) |
| Abstract: | Petrographic and geochemical research sho w that there exist major, trace and rear earth element geochemical variation of th e jadeite-quartzite in the Changpu district of Dabie Mountains during retrog ressive me tamorphism. The elements such as SiO 2,FeO,Ba,Zr,Ga,La,Ce,Pr,Nd,Sm and Eu increase gradually from the jadeite-quartzite to retrograded jadeite-quart zite and to gneiss,while TiO 2,Na 2O,Fe 2O 3,Rb,Y,Nb,Gd,Tb,Dy,Ho ,Er,Tm,Yb decrease gradually. Such changes are not only controlled by intracr ystalline element transformation, but also closely related to fluid-rock intera ction in the decompression retrogressive metamorphic processes. |
| Keywords: | geochemical variation retrogressive metamorphism jadeite-quartzite Dabie Mountains |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |