吉林大学学报(地球科学版) ›› 2022, Vol. 52 ›› Issue (5): 1419-1445.doi: 10.13278/j.cnki.jjuese.20220165

• 地质与资源 • 上一篇    下一篇

青海省主要成矿系列与找矿前景

李世金12,曾小平12,王富春12,童海奎12,杨延乾12,张得鑫12,康 波12,石海岩12,郑振华12   

  1. 1.青海省地质调查局,西宁 810001 2.自然资源部高原荒漠区战略性矿产勘查开发技术创新中心,西宁 810001  

  • 收稿日期:2022-05-31 出版日期:2022-09-15 发布日期:2022-10-07

Main Metallogenic Series and Prospecting Potential in Qinghai Province

Li Shijin12, Zeng Xiaoping12, Wang Fuchun12, Tong Haikui12, Yang Yanqian12, Zhang Dexin12, Kang Bo12, Shi Haiyan12, Zheng Zhenhua12   

  1. 1. Qinghai Geological Survey, Xining 810001, China 2. Technology Innovation Center for Exploration and Exploitation of Strategic Mineral Resources in Plateau Desert Region,Ministry of Natural ResourcesXining 810001,China

  • Received:2022-05-31 Online:2022-09-15 Published:2022-10-07

摘要:

青海省位于青藏高原的东北部,处于秦祁昆造山系和北羌塘—三江造山系两个一级构造单元的拼合部位,先后经历了基底形成、发展及原—古—新特提斯洋扩张消减、闭合碰撞的复合造山及高原隆升过程,并在长期的地质构造演化中,在特定的时空域相伴发生不同的成矿作用并形成与之相配套的矿床系列。本文根据青海省“358地质勘查工程”及找矿突破战略行动实施以来取得的最新矿产勘查成果,通过对已发现的137种矿产、895处矿床和4 597处矿(化)点的成矿地质构造环境、成矿地质条件、成矿特征、成矿作用、成因类型、成矿时代及成矿规律的系统总结研究,运用陈毓川等提出的成矿系列理论,按照5个成矿系列序次(层次),划分出青海省主要矿床成矿系列组14个、成矿系列46个,成矿亚系列76个和矿床式131个。最后提出了最具找矿前景的11个成矿系列组、25个成矿系列、44个成矿亚系列及其63个典型矿床式,并按成矿区带做了简要总结分析。

关键词: 成矿系列, 矿床式, 找矿前景, 青藏高原, 青海省

Abstract:

Qinghai Province is located in the Northeastern Qinghai-Tibet Plateau, where the Qinling-Qilian-Kunlun and the northern Qiangtang-Sanjiang orogens are amalgamated. It has experienced the formation and development of the basement, spreading, subduction, closure and collision of the Proto-Paleo-Neo Tethys Ocean, and plateau uplift process. In the long-term geological tectonic evolution, different metallogenic processes occur and are accompanied by a series of ore deposits in a specific time and space. Based on the latest mineral exploration achievements obtained since the implementation of the “Qinghai 358 Geological Exploration Engineering and Strategic Action of Prospecting Breakthrough, 137 kinds of minerals, 895 deposits and 4 597 ore (chemical) points have been analyzed. A systematic summary and study of the tectonic environment, metallogenic geological conditions, metallogenic characteristics, metallogenic processes, genetic types, metallogenic ages and metallogenic regularities, using the metallogenic series theory proposed by Chen Yuchuan et al., 14 metallogenic series groups, 46 metallogenic series, 76 metallogenic sub-series and 131 ore deposit types of major deposits in Qinghai Province were divided. Finally, 11 metallogenic series groups, 25 metallogenic series, 44 metallogenic sub-series and 63 typical ore deposit types with the most prospecting prospects are proposed, and a brief summary and analysis are made according to metallogenic zones.

Key words: metallogenic series, ore deposit type, prospecting potential, Qinghai-Tibet Plateau, Qinghai Province

中图分类号: 

  • P612
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