| 东准噶尔成矿带岩浆隐蔽爆破作用与成矿 |
| |
| 引用本文： | 喻亨祥,夏斌,林锦富,刘家远,胡承琦.东准噶尔成矿带岩浆隐蔽爆破作用与成矿[J].地质论评,1999,45(6). |
| |
| 作者姓名： | 喻亨祥 夏斌 林锦富 刘家远 胡承琦 |
| |
| 作者单位： | 中国科学院广州地球化学研究所 510640
(喻亨祥，夏斌)，桂林工学院 541004
(林锦富，刘家远)，桂林工学院 541004(胡承琦) |
| |
| 基金项目： | 国家305项目(编号85-902-03-04和95-915-02-06)，国家攀登计划预选项目(编号95-预-25) |
| |
| 摘 要： | 新疆东准噶尔地区乌伦布拉克铜矿、老山口铜—铁—金矿两地皆存在花岗质岩浆隐蔽爆破作用。前者形成了与潜火山英安玢岩侵入体密切伴生的英安玢岩质隐爆角砾岩,后者形成了与潜火山闪长玢岩侵入体相伴生的闪长玢岩质隐爆角砾岩和闪斜煌斑岩质隐爆角砾岩。岩浆隐蔽爆破作用是伴随该区华力西中晚期—晚期地槽褶皱造山运动而发生的一种超浅成岩浆作用,其与铜、金等金属成矿的关系密切;与其有关形成了隐爆角砾岩筒型铜(金)矿和破碎带蚀变岩型金矿。两种类型的矿床都显示出广阔的找矿前景。
|
| 关 键 词： | 岩浆隐蔽爆破作用 隐爆角砾岩筒型铜(金)矿 破碎带蚀变岩型金矿 东准噶尔成矿带 新疆 |
Magmatic Crypto-explosion and Its Related Mineralization in Eastern Junggar Orogenic-Metallogenic Belt, Xinjiang |
| |
| Yu Hengxiang,Xia Bin.Magmatic Crypto-explosion and Its Related Mineralization in Eastern Junggar Orogenic-Metallogenic Belt, Xinjiang[J].Geological Review,1999,45(6). |
| |
| Authors: | Yu Hengxiang Xia Bin |
| |
| Abstract: | Granitic magmatic cryptoexplosion occurred in the Ulunbulak copper deposit and Laoshank-ou copper-iron-gold deposit in the eastern Junggar orogenic-metallogenic belt of Xinjiang. In the former deposit, the dacitic cryptoexplsive breccia intimately associated with a subvolcanic dacite mass formed as a result of the dacite magma cryptoexplosion, whereas in the latter, the diorite-porphyritic cryptoexplosive breccia and spessartitic cryptoexplosive breccia associated with subvolcanic diorite-porphyrite mass formed as a result of the diorite-porphyritic cryptoexplosion and spessartitic cryptoexplosion. The granitic magmatic cryptoexplosion is a kind of near-surface magmatism that took place concomitantly within the Middle-Late or Late Variscan geosynclinal orogeny. It is closely associated with copper and gold mineralization. Cryptoexplosive breccia Cu-Au deposit or fracture zone alteration Au deposits form as a result of it. The prospect of the two types of deposit are very good in the eastern Junggar region. |
| |
| Keywords: | magmatic cryptoexplosion cryptoexplosive breccia Cu-Au deposit fracture zone alteration type Au deposit eastern Junggar orogenic-metallogenic belt Xinjiang |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《地质论评》浏览原始摘要信息 |
| 点击此处可从《地质论评》下载免费的PDF全文 |
