内蒙古赤峰市白音诺尔铅锌矿沉积喷流成因:地质和硫同位素证据

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内蒙古赤峰市白音诺尔铅锌矿沉积喷流成因:地质和硫同位素证据

曾庆栋¹，刘建明¹，贾长顺²，万志民³，于昌明¹，叶杰¹，刘红涛¹

1.中国科学院矿产资源研究重点实验室/地质与地球物理研究所，北京 100029;2.北京科技大学土木与环境工程学院，北京 100083;3.赤峰市白音诺尔铅锌矿，内蒙古赤峰 025473

收稿日期:2007-03-07 修回日期:1900-01-01 出版日期:2007-07-26 发布日期:2007-07-26
通讯作者: 曾庆栋

Sedimentary exhalative origin of the Baiyinnuoer zinc-lead deposit,Chifeng,inner mongolia:geological and sulfur isotope evidence

ZENG Qing-dong¹,LIU Jian-ming¹,JIA Chang-shun²,WAN Zhi-min³,YU Chang-ming¹,YE Jie¹,LIU Hong-tao¹

1.Key Laboratory of Mineral Resources Institute of Geology & Geophysics/Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029,China;2.School of Civil and Environmental Engineering, Beijing University of Science and Technology, Beijing 100083,China;3.Baiyinnuoer Zinc-Lead Mine, Chifeng,Inner Mongolia 025473,China

Received:2007-03-07 Revised:1900-01-01 Online:2007-07-26 Published:2007-07-26
Contact: ZENG Qing-dong

摘要/Abstract

摘要： 位于大兴安岭中段的内蒙古赤峰市白音诺尔铅锌矿产于二叠系黄岗梁组地层中，矿体分布受褶皱构造控制。矿体主要由层纹状、浸染状、块状构造矿石构成。矿区内矿化类型以层纹状、层状矿化为主，晚期为脉状矿化。矿床矿石硫化物硫同位素分析表明，早期矿化与晚期矿化具有不同的硫同位素特征：早期矿化硫化物的δ³⁴Ｓ值(平均-4.31‰)明显小于晚期矿化硫化物的δ³⁴Ｓ值(平均值为-1.83‰)。综合研究表明,白音诺尔铅锌矿是沉积喷流型铅锌矿床，受到燕山期岩浆热液活动叠加,主成矿期发生于二叠纪。

关键词: 沉积喷流, 硫同位素, 白音诺尔铅锌矿

Abstract: Baiyinnuoer zinc-lead deposit in Chifeng, Inner Mongolia, is located at the middle segment of the Da Hinggan Mountains, in the Permian Huanggangliang Group. The distribution of the ore bodies are controlled by fold structures. The ore bodies are mainly composed of layered, disseminated and massive ores. The mineralization can be divided into two periods: the early mineralization including layered, layer parallel veined and brecciated ores, and the late mineralization including veinlets and veined ores. The sulfur isotopic compositions of the sulfides from ores show that the values (average -4.31‰) of the δ³⁴Ｓ of the early mineraliztion ores are clearly lower than that (average -1.83‰) of the late mineralization ores. Comprehensive studies indicate that the Baiyinnuoer zinc-lead deposit is a type of sedimentary exhalative Zn-Pb-Ag deposit and superimposed by Yanshanian magma hydrothermal activity. The main metallogenic period is the Permian.

Key words: sedimentary exhalative, sulfur isotope, Baiyinnuoer zinc-lead deposit

中图分类号:

P618.4

曾庆栋，刘建明，贾长顺，万志民，于昌明，叶杰，刘红涛. 内蒙古赤峰市白音诺尔铅锌矿沉积喷流成因:地质和硫同位素证据[J]. J4, 2007, 37(4): 659-0667.

ZENG Qing-dong,LIU Jian-ming,JIA Chang-shun,WAN Zhi-min,YU Chang-ming,YE Jie,LIU Hong-tao. Sedimentary exhalative origin of the Baiyinnuoer zinc-lead deposit,Chifeng,inner mongolia:geological and sulfur isotope evidence[J]. J4, 2007, 37(4): 659-0667.

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