地质找矿论丛2025，Vol.40Issue(2)：197-205,9.DOI:10.6053/j.issn.1001-1412.2025.02.007
内蒙古大井子铜锡矿床控矿构造特征及成矿流体运移
Characteristics of ore-controlling structure and migration of ore-forming fluids in the Dajingzi Cu-Sn deposit,Inner Mongolia
摘要
Abstract
The characteristics of ore-controlling structure in the Dajingzi deposit are studied.The ore-controlling structure of ore bodies can be classified to four styles:upward tension-torsion,downward slip,mixed ore-forming,and late ore-breaking.Migration of ore-forming fluids is related to the subvolcanic uplift.During early thermal uplift,the ore-forming fluids filled along tension-torsion faults,forming steep veins with narrow amplitude.As magma cools,the ore-forming fluids filled along inter formation slip faults,forming gentle veins with wide amplitude.In the late stage subvolcanoes collapsed under the influ-ence of gravity,resulting in the ore-breaking structure.Ore bodies are controlled by different structural styles and differences of mineralization characteristics result from the different ore fluid migration.The a-bove mentioned not only explain why the veins are distributed in groups or belts in NW-NWW direction,but also provide an important basis for prospecting similar concealed deposits in other sections of the Da-jingzi ore field.关键词
次火山热隆/控矿构造样式/成矿流体运移/铜锡矿床/岩浆侵入/层间滑动断裂Key words
subvolcanic themal uplift structure/ore-controlling structural styles/migration of ore-forming fluids/Cu-Sn deposit/magma intrusion/inter formation slip fault分类
天文与地球科学引用本文复制引用
董业才,邢全力,王建超,徐文杰..内蒙古大井子铜锡矿床控矿构造特征及成矿流体运移[J].地质找矿论丛,2025,40(2):197-205,9.基金项目
中国有色集团科技计划项目"大兴安岭南段稀有-铜多金属找矿关键勘查技术研究与示范"(编号:2023KJZX02)、"大型有色金属矿山深边部找矿预测及综合技术示范研究"(编号:2018KJJH07)、"金属矿床快速预测定位关键技术与示范"(编号:2017KJJH02)共同资助. （编号:2023KJZX02）
