| 张长青,郑瑜林,李扬林,吴越,孔志岗,刘欢,娄德波,韩润生,李波,吴鹏.扬子地台西南缘铅锌成矿作用与找矿模型[J].矿产勘查,2023,14(9):1545-1569 |
| 扬子地台西南缘铅锌成矿作用与找矿模型 |
| Lead zinc mineralization and prospecting model in the southwestern margin of the Yangtze Platform |
| 投稿时间：2023-06-05 修订日期：2023-08-06 |
| DOI：10.20008/j.kckc.202309002 |
| 中文关键词: 找矿模型 三叠纪 古特提斯 铅锌矿床 扬子地台西南缘 |
| 英文关键词: prospecting model Triassic Paleotethys lead-zinc deposits southwestern margin of the Yangtze platform |
| 基金项目:本文受国家自然科学基金（41672093）、中国地质科学院基本科研业务费（KK2202）和云金集团项目“云南北衙金多金属矿万硐山矿段三维地质模型优化与应用”联合资助。 |
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| 中文摘要: |
| 川滇黔地区作为中国西南地区重要的铅锌工业基地之一，区内成矿条件优越，产有一批不同规模的铅锌矿床，但随着逐年开采，后续接替资源储备不断减少，急需寻找和发现新的矿产地。前人对该区铅锌矿床开展了一系列富有成效的研究工作，取得了诸如后生、碳酸盐岩容矿和构造控矿等一系列的共识。除了以上共识外，当前在成矿流体的通道、容矿空间的形成，成矿物质的来源，成矿时代及成矿背景，找矿模型的建立等方面仍然存在较大争议。本文在总结典型铅锌矿床地质特征的基础上，通过对成矿物质来源、成矿要素、成矿时代及背景等方面的研究成果梳理，总结出区内铅锌矿床成矿物质主要来源于围岩及下伏地层，控矿要素主要有地层、岩性、构造，成矿作用主要形成于印支晚期扬子板块与印支板块碰撞后的伸展环境，建立了扬子地台西南缘区域成矿模式，形成了以找矿要素为核心的综合找矿模型，为该区铅锌矿床找矿勘查提供了依据。 |
| 英文摘要: |
| As one of the important lead-zinc industrial bases in southwestern China， the Sichuan， Yunnan and Guizhou region has superior mineralization conditions and produces a number of lead-zinc deposits of different scales. However， with the continuous reduction of resource reserves due to mining year by year， there is an urgent need to search for and discover new mineral resources. Previous researchers have conducted a series of fruitful research on lead-zinc deposits in this area， achieving a series of consensus such as epigenetic， carbonate rock hosting， and structural ore control. In addition to the above consensus， there are still significant controversies regarding the channels of ore-forming fluids， the formation of ore bearing spaces， the sources of ore-forming materials， the ore-forming era and background， and the establishment of ore exploration models. On the basis of summarizing the geological characteristics of typical lead-zinc deposits， this article summarizes the sources of ore-forming materials， ore-forming elements， ore-forming era， and background. It elaborates that the ore-forming materials of lead-zinc deposits in the area mainly come from surrounding rocks and underlying strata， and the ore-controlling factors mainly include strata， lithology， and structure. The ore- formed in the extensional environment after the closure of the Late Indosinian Paleo Tethys Ocean， established the regional metallogenic model of the southwestern margin of the Yangtze platform， and a comprehensive prospecting model based on prospecting elements has been formed， which provides a basis for prospecting and exploration of lead-zinc deposits. |
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