| 辽宁北票二道沟金矿床地球化学特征及意义 |
| |
| 引用本文： | 徐万臣.辽宁北票二道沟金矿床地球化学特征及意义[J].地质与资源,2007,16(4):263-269. |
| |
| 作者姓名： | 徐万臣 |
| |
| 作者单位： | 辽宁省地质矿产研究院, 辽宁 沈阳 110032 |
| |
| 基金项目： | 致谢：辽宁省地矿局第三地质大队王志、李福元等同志曾在野外工作中给予大力支持与协助,并提供宝贵资料.参加野外工作的还有宋昌锦、迟广成等同志,谨表谢意! |
| |
| 摘 要： | 针对金矿床的矿石和岩石稀土元素、矿物的微量元素、金矿物成色、硫同位素和石英包裹体测温等方面阐述了二道沟金矿床的地球化学特征，对其成矿物质来源及矿床成因进行了探讨.二道沟金矿床岩石和金矿石具有轻稀土富集、重稀土亏损、稀土元素分布模式总体呈向右倾斜的特征.金矿石稀土模式曲线与早白垩世岩石稀土模式曲线近似，表明金矿成矿与早白垩世岩浆活动密切相关，同时稀土元素参数也反映出成岩成矿物源的一致性.黄铁矿具有含As高及As/Sb和Co/Ni比值高的特点.金矿物成色为630~948，多数金矿物成色值大于800；δ34S值大多数在-2‰~+3‰之间，变化区向狭窄，显示出岩浆成因的热液硫化物之特征.石英包裹体成矿温度为210~322℃.研究表明，二道沟金矿床金矿石和岩石是地幔岩浆同熔地壳经分异作用而形成，成岩成矿系同源演化系列的产物，成矿物质来源具有上地幔或下地壳的特征，反映该金矿床是中深成中温岩浆热液金矿床.
|
| 关 键 词： | 金矿床 稀土元素 矿物微量元素 同位素 二道沟 辽宁 |
| 文章编号： | 1671-1947（2007）04-0263-07 |
| 收稿时间： | 2007-01-24 |
| 修稿时间： | 2007-04-25 |
GEOCHEMISTRY AND SIGNIFICANCE OF ERDAOGOU GOLD DEPOSIT IN BEIPIAO, LIAONING PROVINCE |
| |
| XU Wan-chen.GEOCHEMISTRY AND SIGNIFICANCE OF ERDAOGOU GOLD DEPOSIT IN BEIPIAO, LIAONING PROVINCE[J].Geology and Resources,2007,16(4):263-269. |
| |
| Authors: | XU Wan-chen |
| |
| Institution: | Liaoning Institute of Geology and Mineral Resources, Shenyang 110032, China |
| |
| Abstract: | The Erdaogou gold deposit in Liaoning Province,tectonically located in the north margin of North China platform,is an important component part of the Erdaogou-Jinchanggouliang gold field.The rocks and ores of the deposit are characterized by enriched LREE and deficient HREE,with rightward inclined curve pattern of REE distribution pattern,which is similar to that of Early Cretaceous rocks,showing that the gold mineralization is closely related to Early Cretaceous magmatic activity.Meanwhile the REE parameters also reflect a consistent material source of diagenesis and metallogenesis.Study shows that the ore and rocks in Erdaogou gold deposit are formed by the differentiation of mantle magma and syntectic crustal rocks.The ore-forming material is derived from lower crust or upper mantle,suggesting that the gold deposit belong to meso-hydrothermal magmatic gold deposit. |
| |
| Keywords: | gold deposit REE trace element isotope Erdaogou gold deposit Liaoning Province |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《地质与资源》浏览原始摘要信息 |
| 点击此处可从《地质与资源》下载免费的PDF全文 |
