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| 新疆阿图什彻依布拉克锡多金属矿点地质特征 | |
| 引用本文： | 杨富全,邓会娟,夏浩东,马伯永,王立本.新疆阿图什彻依布拉克锡多金属矿点地质特征[J].新疆地质,2003,21(4):426-432. |
| 作者姓名： | 杨富全 邓会娟 夏浩东 马伯永 王立本 |
| 作者单位： | 1. 中国地质科学院矿产资源研究所,北京,100037 2. 国土资源部实物地质资料中心,河北,燕郊,065201;河北地矿科技开发总公司,河北,燕郊,065201 3. 中国地质大学(北京),北京,100083 |
| 基金项目： | 国家305项目(96915040302)资助 |
| 摘 要： | 南天山是重要的锡锑多金属成矿带，目前已发现几处锡矿床(点)和大量锡化探异常，具有良好的成矿前景．彻依布拉克锡多金属矿点赋存于塔木岩体围岩的夕卡岩中．塔木碱长花岗岩侵入时代为晚二叠世，化学成分具有富Si、富碱，贫Mg、Al的特点，Ga／Al比值大，富轻稀土，具强Eu负异常，具有A型花岗岩的特点．矿体严格受夕卡岩带控制，呈似层状、透镜状，与夕卡岩产状一致，二呈渐变过渡关系，矿体变化较大．矿石类型有：锡铁矿石、金(铜)矿石、锡矿石和锌铜矿石．成矿具有多阶段性，划分为夕卡岩阶段硼酸盐阶段、硫化物阶段和表生阶段，其中硼酸盐阶段是锡成矿的主要阶段．岩浆活动为成矿提供了热源和主要物质来源． |
| 关 键 词： | 锡多金属矿 地质特征 什彻依布拉克 花岗岩 |
| 文章编号： | 1000-8845(2003)04-426-07 |
| 修稿时间： | 2003年2月18日 |
GEOLOGICAL CHARACTERISTICS OF QIEYIBULAKE TIN-POLYMETALLIC ORE SPOT IN ATUSHI CITY, XINJIANG |
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| YANG Fu-quan,DENG Hui-juan,XIA Hao-dong,MA Bo-yong,WANG Li-ben.GEOLOGICAL CHARACTERISTICS OF QIEYIBULAKE TIN-POLYMETALLIC ORE SPOT IN ATUSHI CITY, XINJIANG[J].Xinjiang Geology,2003,21(4):426-432. | |
| Authors: | YANG Fu-quan DENG Hui-juan XIA Hao-dong MA Bo-yong WANG Li-ben |
| Abstract: | Southern Tianshan Mountains in Xinjiang is an important tin-polymetallic metallogenic belt and a promising exploration area where several tin deposits (ore spots) and many geochemical anomalies were found by now. Qieyibulake tin-polymetallic ore spot occurs in skarn of contact zone of wall rock and Tamu pluton. Intrusive age of Tamu alkali feldspar granite is Upper Permian. Geochemically the Tamu pluton is rich in Si, alkali, REE, Li, Rb, Be, Nb, Zr, Th, W, Sn, Pb, Ga, poor in transitional element like Mg, Al, Cr, Co, Ni, V etc. and with high Ga/Al ratio. It is rich in light REE (LREE) with intensive europium depletion, and belongs to A-type granite. Orebody , showing bed-like and lenticular, are contolled by skarn belt and of the same attitude with skarn. Orebody vary greatly and gradually change to skam. Ore types include tin-iron ore, gold(copper)ore, tin ore and zinc-copper ore. The ore-forming process is characterized by multi-stages and four stages can be identified. They are skarn stage, borate stage, sulphide stage and supergene stage, among which borate stage is the main tin metallogenic stage. Magmatic activity provided heat and main original materials for mineralization. |
| Keywords: | Geological Characteristics Tamu alkali feldspar granite tin-polymetallic ore spot Qieyibulake Xinjiang |
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