| 大别造山带超高压变质带中含金钛-铁氧化物 |
| |
| 引用本文： | 杜建国,孙先如,胡礼军.大别造山带超高压变质带中含金钛-铁氧化物[J].安徽地质,1999(4). |
| |
| 作者姓名： | 杜建国 孙先如 胡礼军 |
| |
| 作者单位： | 安徽地质调查院!安徽合肥230001，合肥工业大学资源与环境科学系，安徽合肥230009，安徽地质调查院!安徽合肥230001，安徽省工业经济职工大学!安徽合肥230051 |
| |
| 摘 要： | 大别造山带ＨＰ（高压）－ ＵＨＰ（ 超高压） 变质岩中的钛－ 铁氧化物系列矿物和其寄主岩石同是ＨＰ－ ＵＨＰ变质作用过程的重要地质记录，经研究发现这些钛－ 铁氧化物中金元素浓度较高。对榴辉岩相、角闪岩相变质岩中金红石、钛铁矿电子探针微区分析发现其含金值高达０－０１ ％ ～０－６１ ％ ；微区电子探针浓度扫描揭露金呈超微粒包体、弥散状态分布于金红石、钛铁矿中。钛－ 铁氧化物矿物中出现这种含金形式不仅是金在ＨＰ－ ＵＨＰ变质作用下具有亲铁性质的表现，也可能是金在地幔岩石中的主要赋存状态。
|
| 关 键 词： | 含金钛-铁氧化物 高压-超高压变质带 大别-苏鲁造山带 |
THE GOLD-BEARING TI-FE OXIDES IN THE ULTRAHIGH PRESSURE METAMORPHOSED BELT OF THE DABIESHAN OROGEN |
| |
| Du Jianguo ,Sun Xianru ,Hu Lijun.THE GOLD-BEARING TI-FE OXIDES IN THE ULTRAHIGH PRESSURE METAMORPHOSED BELT OF THE DABIESHAN OROGEN[J].Geology of Anhui,1999(4). |
| |
| Authors: | Du Jianguo Sun Xianru Hu Lijun |
| |
| Institution: | Du Jianguo 1,Sun Xianru 2,Hu Lijun 3 |
| |
| Abstract: | The Ti-Fe oxides minerals in the high pressure(HP)-ultrahigh pressure(UHP) metamorphosed rocks along with the rocks themselves identically recorded the HP-UHP metamorphic process It has been shown by research that Au element concentrated considerably in the Ti-Fe oxides The microprobe analysis with concentration scanning indicates that gold scatters in the form of super-micro grain envelopes and in diffuse dispersion pattern with a content up to 0 01%-0 61%in rutile and ilmenite of eclogite and amphibolite facies metamorphosed rocks The way gold appears in Ti-Fe oxides minerals not only shows its siderophilicity under HP-UHP metamorphic condition,probably is also its major mantle rocks-hosted state |
| |
| Keywords: | gold-bearing Ti-Fe oxides HP-UHP metamorphosed belt Dabieshan-Sulu Orogen |
| 本文献已被 CNKI 等数据库收录！ |
