| 成勇,李永,朱生善,俞彦龙.新疆哈尔达坂铅锌矿床地质特征及成因分析[J].矿产勘查,2015,6(2):107-114 |
| 新疆哈尔达坂铅锌矿床地质特征及成因分析 |
| Geological characteristics and genesis analysis of the Haerdaban lead-zinc deposit, Wenquan, Xinjiang |
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| DOI： |
| 中文关键词: 新疆 哈尔达坂 铅锌矿床 地质特征 矿床成因 |
| 英文关键词: lead-zinc deposit, geological characteristic, deposit genesis, Haerdaban, Xinjiang |
| 基金项目:中国地质调查局项目(编号:1212011120489)资助。 |
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| 中文摘要: |
| 哈尔达坂铅锌矿区位于哈萨克斯坦—准噶尔板块伊犁地块及其大陆边缘之赛里木中间地块北缘,容矿地层为中元古界长城系哈尔达坂群,赋矿岩石为白云质灰岩、白云岩,主要矿体呈似层状、透镜体状顺层产出,矿石具条带状、角砾状和浸染状构造,矿石矿物组合简单。对矿体地质特征、微量元素和稳定同位素等研究发现:矿体严格受层位和岩相控制,矿石沉积特征明显,兼有后期改造的特点；成矿的硫源主要来自于海水或海相硫酸盐中；铅来源于赋矿围岩本身或更古老的下地壳岩石中；碳氧同位素反映成矿流体来自地层或与地层紧密相关。综合分析认为矿床成因类型属沉积—改造型。 |
| 英文摘要: |
| The Haerdaban lead-zinc deposit is located in the north of Yili block of Kazakhstan -Junggar plate and Sailimu median block of the continental margins. The host strata is the Haerdaban of Changcheng Group of Middle Proterozoic. The host rocks are dolomite limestone and dolomite. Main lead-zinc orebodies occur in stratoid and lenticular and forms. The ore structures include banded, brecciaed and disseminated structures. The integrated study of geological characteristics,trace elements and stable isotope of the depositshow that ore bodies are strictly controlled by the strata and lithofacies, and have obvious sedimentary characters overprinted by late stage reformation. The sulfur source of ore-forming mainly comes from seawater or marine sulfate; The lead source from the host rocks or older rocks in the lower earth's crust; The carbon and oxygen isotopic study indicate that the ore-forming fluid comes from the strata or those closely related to strata. The integrated analysis result indicates that the deposit genesis belongs to the sedimentary - reformation type deposit. |
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