| 赵路通,刘建明.沉积岩型层状铜矿床成矿年代学研究进展及展望[J].矿产勘查,2025,16(8):1974-1984 |
| 沉积岩型层状铜矿床成矿年代学研究进展及展望 |
| Research progresses and prospect in the geochronology of sediment-hosted stratiform copper deposits |
| 投稿时间：2025-02-25 |
| DOI：10.20008/j.kckc.202508013 |
| 中文关键词: 沉积岩型层状铜矿床 成矿年代学 矿床成因 LA-ICP-MS 方解石 U-Pb中图分类号:P548文献标志码:A文章编号:1674-7801(2025)08-1974-11 |
| 英文关键词: sediment-hosted stratiform copper deposits mineralization chronology deposit genesis LA-ICP-MS calcite U-Pb |
| 基金项目:本文受国家“305”科研项目(2015BAB05B04-03)、国土资源部行业基金项目(201511016-02)和紫金矿业集团矿山综合找矿预测专项(4104KY2022030001)联合资助。 |
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| 中文摘要: |
| 沉积岩型层状铜矿床(SSC)是全球第二重要的铜矿类型，仅次于斑岩型铜矿床，成矿年代学一直以来是其研究的难点之一，本文重点总结了 SSC矿床成矿年代学研究的进展。依靠多种方法获得的测年结果，成岩成矿、成岩-后生多期成矿和同造山成矿模型的先后提出促进了人们对 SSC矿床成矿作用与区域构造-岩浆-流体运移间耦合关系及区域成矿规律的认识。同时目前 SSC矿床成矿年代学研究还存在诸如侧重于海相型矿床、测试矿物缺乏/分选困难、测试结果具有较大误差/不确定性等问题。本文介绍了 LA-ICP-MS方解石定年技术在矿床年代学中的应用现状，指出该技术在 MVT、SST铅锌矿床和砂岩型铀矿等与盆地卤水有关的矿床定年中的成功案例，表明其在解决 SSC矿床年代学方面具有极大的潜力。 |
| 英文摘要: |
| Sediment-hosted stratiform copper deposit is the second most important type of copper deposit inthe world, which is second only to porphyry copper deposit in importance. Metallogenic chronology has always beenone of the difficulties in its research. In this paper, the progress of metallogenic chronology of SSC deposit is em-phatically summarized. The dating results obtained through various methods, and the successive proposal of metallo-genetic models such as syngenetic metallogenesis, syngenetic-epigenetic polyphase metallogenesis, and synoro-genic metallogenesis, have promoted the understanding of the coupling relationship between the metallogenesis ofSSC deposits and the regional tectonic-magmatic-fluid migration, as well as the regional metallogenic regularities. At the same time, there are still some problems in the study of metallogenic chronology of SSC deposit, such as fo-cusing on marine deposits, lack/difficulty in sorting test minerals, and large error/uncertainty in test results. This pa-per introduces the application status of LA-ICP-MS calcite dating technology in ore deposit chronology, and pointsout that the successful cases of this technology in dating deposits related to basin brine such as MVT, SST lead-zincdeposits and sandstone-type uranium deposits show that it has great potential in solving SSC deposit chronology. |
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