| 藏梅,邢令,赵斐,杨维忠,宋安强,林泽华,韩继全,蒋南飞,李通.新疆卡特巴阿苏金铜矿床金矿石特征及其地质意义[J].矿产勘查,2018,9(1):79-87 |
| 新疆卡特巴阿苏金铜矿床金矿石特征及其地质意义 |
| Characteristics of gold ore and its geological significance of the Kateba’asu gold-copper deposit in West Tianshan Mountain, Xinjiang |
| 投稿时间：2017-01-12 |
| DOI： |
| 中文关键词: 新疆 卡特巴阿苏金矿 矿石特征 金赋存状态 |
| 英文关键词: Xinjiang Province, kateba'asu gold deposit, ore features,gold occurrence state |
| 基金项目:中国地质调查局发展研究中心基础公益类项目(编号:0747-1661SITCN131-36)资助。 |
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| 中文摘要: |
| 卡特巴阿苏金铜矿是近年来在新疆西天山地区新发现的一个与岩浆热液有关的大型金矿床。矿床典型金矿石中金属矿物主要为黄铁矿,含微量黄铜矿、闪锌矿和方铅矿,金属矿物主要呈脉状、浸染状分布。矿石中金为自然金形式存在,主要以裂隙金、晶间金形式嵌布,少量为包裹金。自然金金成色为765～1000,平均874。主要蚀变矿物为绿泥石、方解石和钠长石。通过分析矿石中金属矿物组合、自然金中含金量以及蚀变矿物组合,认为矿石形成于热液矿床边缘的低温环境。结合矿床深部的矿源地质体(金铜矿化闪长岩)研究,认为现有矿体与矿源地质体之间的部位是进一步的找矿方向。通过矿床氧化矿石与原生矿石的对比,认为矿床地表的风化—残积过程使原生矿石中的金进一步富集,形成高品位的金次生富集带,具有较高的开采利用价值。 |
| 英文摘要: |
| The kateba'asu gold-copper deposit is a newly found large gold deposit associated with magmatic hydrotherm in West Tianshan Mountain of Xinjiang province in recent years. The main metallic minerals are pyrite and trace amount of chalcopyrite, sphalerite and galena, all are developed in the veined and disseminated shape. Native gold, as the main existing form, is mainly developed in the occurrence states of intercrystalline gold, fissure gold and a small amount of inclusion gold. The fineness of native gold is 765-100, with an average of 874. The main alteration minerals are chlorite, calcite and albite. The analysis of the metallic mineral assemblage in the ore, the gold content in the native gold and the alteration mineral assemblage suggests that the ore is formed in epithermal environment at the edge of the hydrothermal deposit. Combined with the study of the deep mineral source (gold-copper mineralized diorite) of the ore deposit, the area between the existing ore body and mineral source is thought to be the further prospecting direction. Through the comparison of oxidized ore and primary ore in the ore deposit, it is considered that the weathering-residual deposition process in the earth surface prompts the further enrichment of the gold in the primary ore and forms the secondary enrichment zone of gold with high grade, which has high exploitation value. |
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