世界核地质科学2025，Vol.42Issue(4)：771-781,11.DOI:10.3969/j.issn.1672-0636.2025.04.007
东昆仑成矿带东段铀成矿作用及找矿前景
Uranium mineralization and prospecting prospects in the east Kunlun metallogenetic belt,Qinghai province
摘要
Abstract
The east Kunlun metallogenic belt in Qinghai province is a critical area for nonferrous and precious metal exploration,attracting continuous geological investigations and scientific research.The discovery of Haidewula deposit,the first independent continental volcanic rock-related uranium deposit in northwest China,has shifted more scholars attention toward the region's uranium exploration and mineralization.Based on the collection of the existing uranium exploration data in the east Kunlun metallogenic belt,this paper first describes the geological context of uranium mineralization,highlights recent exploration achievements,and analyzes typical uranium deposits.Our analysis of the geological characteristics and ore control mechanisms of the uranium deposits reveals that uranium mineralization in the area has no metallogenic specificity with strata and lithology,the strata only contribute to the uranium source.Instead,fault structures play a crucial role,the mineralization primarily are controlled by secondary NW-trending and NE-trending faults and fractures.Uranium mineralization is also closely related to magmatic rocks,in that rock intrusion not only provides a steady supply of hydrothermal fluids and energy for mineralization,but is also an important source of uranium.Nearly all uranium mineralization events occurred during the Indosinian period,predominantly forming low-high temperature hydrothermal deposits.It is important to note that ground radioactive investigation in the east Kunlun metallogenic belt was interrupted for quite a long time,resulting the low exploration level in the western part,many delineated small-scale ground radioactive and water sediments uranium anomalies have not been effectively dissected,Therefore,the space for further prospecting is huge.关键词
铀成矿作用/成矿规律/地质特征/找矿前景/东昆仑成矿带Key words
uranium mineralization/metallogenic regularity/geological characteristics/exploration prospect/east Kunlun metallogenic belt分类
天文与地球科学引用本文复制引用
张宇宏,孙红庆,戴佳文,赵生辉,刘松林,李彦强,白强..东昆仑成矿带东段铀成矿作用及找矿前景[J].世界核地质科学,2025,42(4):771-781,11.基金项目
青海省科学技术厅重点研发项目(编号:2025-SF-141)、青海省"昆仑英才"计划(编号:青人才字[2024]1号)、青海省财政资金地勘项目及赵鹏大院士创新中心联合资助 Supported by the Key Research and Development Program of the Science and Technology Department of Qinghai Province(Grant No.2025-SF-141),the"Kunlun Talent"Program of Qinghai Province(Grant No.Qing Talent[2024]No.1),the geological exploration project of Qinghai Province,and the Innovation Center of Academician Zhao Pengda （编号:2025-SF-141）
