乌兰哈达-楚鲁达板,矿化特征,找矿方向,火山岩型铀矿,次火山岩型,蚀变裂隙带型 ," /> 乌兰哈达-楚鲁达板,矿化特征,找矿方向,火山岩型铀矿,次火山岩型,蚀变裂隙带型 ,"/> Wulanhada-Chuludaban,mineralization characteristics,prospecting direction, volcanic type uranium ore,subvolcanic type,altered fracture zone type,"/> <p class="pf0"> <span class="cf0">内蒙古乌兰哈达—楚鲁达板地区</span>铀矿化特征及找矿方向

吉林大学学报(地球科学版) ›› 2025, Vol. 55 ›› Issue (4): 1103-1119.doi: 10.13278/j.cnki.jjuese.20240009

• 地质与资源 • 上一篇    下一篇

内蒙古乌兰哈达—楚鲁达板地区铀矿化特征及找矿方向

吴燕清,杨志亮,王常东,郝晓飞,姜山,林天发,于兵,董小宇,张强,周舰,王天奇,王一鸣   

  1. 核工业二四三大队,内蒙古 赤峰 024006

  • 收稿日期:2024-01-10 出版日期:2025-07-26 发布日期:2025-08-05
  • 通讯作者: 杨志亮(1988—),男,高级工程师,主要从事铀矿资源调查评价及铀成矿理论方面的研究,E-mail:18747688243@163.com
  • 作者简介:吴燕清(1988—),男,高级工程师,主要从事铀矿资源调查评价及铀成矿理论方面的研究,E-mail:15847616797@163.com
  • 基金资助:

    中国核工业地质局铀矿调查评价项目(2023-12,202211-3)

Uranium Mineralization Characteristics and Prospecting Direction in Wulanhada-Chuludaban Area, Inner Mongolia

Wu Yanqing,Yang Zhiliang,Wang Changdong,Hao Xiaofei,Jiang Shan,Lin Tianfa,Yu Bing,Dong Xiaoyu,Zhang Qiang,Zhou Jian,Wang Tianqi,Wang Yiming   

  1. Geological Party No.243, China National Nuclear Corporation, Chifeng 024006, Inner Mongolia, China

  • Received:2024-01-10 Online:2025-07-26 Published:2025-08-05
  • Supported by:
    the Uranium Ore Survey and Evaluation Project of China Nuclear Geology Bureau(2023-12,202211-3)

摘要:

内蒙古乌兰哈达—楚鲁达板地区位于扎兰屯火山岩型铀成矿远景带中段,是我国北方热液型铀多金属矿集区之一。区内中生代火山喷发强烈且频繁,成矿地质条件优越,具有较好的找矿前景。通过整理前人资料、综合编图、铀矿地质调查评价,初步总结了乌兰哈达—楚鲁达板地区火山岩型铀矿地质特征、控矿因素,并进行钻探查证,研究表明:研究区火山岩型铀矿分为次火山岩和蚀变裂隙带2种类型;研究区铀成矿高峰期为晚侏罗世晚期-晚白垩世早期,相对集中在149~99 Ma之间,具有时间跨度大、多期多阶段的特征;铀矿化异常主要沿NE向FW2切壳断裂分布,多产于NE、NW向次级断裂和构造裂隙带内;铀矿化富集于上侏罗统满克头鄂博组酸性熔岩、燕山晚期侵入岩内外接触带附近;铀矿化主要受铀源、地层、构造、次火山岩及热液蚀变复合控制。赤铁矿化、萤石化及硅化可做为直接的找矿标志,下一步找矿工作重点应在NE向FW2导矿断裂带两侧寻找蚀变裂隙带型铀矿化,其次加强火山机构、次火山岩周围铀矿化的探索。

关键词: 乌兰哈达-楚鲁达板')">

乌兰哈达-楚鲁达板, 矿化特征, 找矿方向, 火山岩型铀矿, 次火山岩型, 蚀变裂隙带型

Abstract:

The Wulanhada-Chuludaban area in Inner Mongolia is located in the middle section of the Zhalantun volcanic rock-type uranium mineralization prospecting zone and is one of the hydrothermal uranium polymetallic mineralization clusters in Northern China. The area experienced intense and frequent Mesozoic volcanic eruptions, providing excellent geological conditions for mineralization and promising exploration prospects. Through the collation of previous data, comprehensive mapping, and uranium geological survey and evaluation, the geological characteristics and ore-controlling factors of volcanic rock-type uranium deposits in the Wulanhada-Chuludaban area have been preliminarily summarized. Through drilling verification, it is found that the volcanic rock-type uranium deposits in the research area can be classified into two types based on the main ore-controlling factors: subvolcanic rocks and altered fracture zones. It is believed that the peak period of uranium mineralization in the research area was from the Late Jurassic to the Early Cretaceous, mainly concentrated between 149 and 99 Ma, with the characteristics of a large time span and multiple stages. Uranium mineralization anomalies are mainly distributed along the NE-trending FW2 trans-shell faults and are mostly found in the NE and NW-trending secondary faults and structural fracture zones. Uranium mineralization is mainly controlled by uranium source, strata and structure, subvolcanic rocks, and hydrothermal alteration. Hematitization, fluoritization, and silicification can be used as direct exploration indicators. The next exploration work should focus on searching for altered fracture zone-type uranium mineralization on both sides of the NE-trending FW2 ore-controlling faults, and secondly, strengthen the exploration of uranium mineralization around volcanic structures and subvolcanic rocks.

Key words: Wulanhada-Chuludaban')">Wulanhada-Chuludaban, characteristics')">mineralization characteristics, direction')">prospecting direction, ore')"> volcanic type uranium ore, type')">subvolcanic type, fracture zone type')">altered fracture zone type

中图分类号: 

  • P619.14
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