[1]姚双秋,庞崇进,温淑女.2021.桂西上二叠统合山组富锂黏土岩的发现及意义.大地构造与成矿学,45(5):951-962.doi:10.16539/j.ddgzyckx.2020.04.019
　YAO Shuangqiu,PANG Chongjin,WEN Shunv.2021.Li-rich Claystone in the Upper Permian Heshan Formation in Western Guangxi and its Prospecting Significance.Geotectonica et Metallogenia,45(5):951-962.doi:10.16539/j.ddgzyckx.2020.04.019
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桂西上二叠统合山组富锂黏土岩的发现及意义
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《大地构造与成矿学》[ISSN:ISSN 1001-1552/CN:CN 44-1595/P]

卷:
期数:
2021年45卷05期
页码:
951-962
栏目:
构造地质与成矿学
出版日期:
2021-10-25

文章信息/Info

Title:
Li-rich Claystone in the Upper Permian Heshan Formation in Western Guangxi and its Prospecting Significance
文章编号:
1001-1552(2021)05-0951-012
作者:
姚双秋1;  庞崇进2、3;  温淑女2*;  梁 航2;  卢光辉1;  尹本纯1;  覃 丰1;  罗桥花4
1.广西壮族自治区二七四地质队, 广西 北海 536005; 2.桂林理工大学 广西隐伏金属矿产勘查重点实验室, 广西 桂林 541004; 3.桂林理工大学 有色金属矿产勘查与资源高效利用协同创新中心, 广西 桂林 541004; 4.广西壮族自治区三一〇核地质大队, 广西 桂林 541213
Author(s):
YAO Shuangqiu1;  PANG Chongjin2、3;  WEN Shunv2*;  LIANG Hang2;  LU Guanghui1;  YIN Benchun1;  QIN Feng1 and LUO Qiaohua4
1. 274 Team of Guangxi Bureau of Geology, Beihai 536005, Guangxi, China; 2. Guangxi Key Laboratory of Hidden Metallic Ore Deposits Exploration, Guilin University of Technology, Guilin 541004, Guangxi, China; 3. Collaborative Innovation Center for Exploration of Nonferrous Metal Deposits and Efficient Utilization of Resources, Guilin University of Technology, Guilin 541004, Guangxi, China; 4. 310 Nuclear Team of Guangxi Bureau of Geology, Guilin 541213, Guangxi, China
关键词:
上二叠统;  富锂黏土岩;  锂绿泥石;  碳酸盐岩和中酸性火山岩;  桂西平果地区
Keywords:
the upper Permian;  Li-rich claystone;  cookeite;  Carbonate rocks and intermediate-felsic volcanic rock;  western Guangxi
分类号:
P588.2; P618.71
DOI:
10.16539/j.ddgzyckx.2020.04.019
文献标志码:
A
摘要:
本文首次报道了桂西平果地区上二叠统合山组含铝土矿层上部黏土岩呈现锂矿化现象。Li2O品位可达0.20%~ 0.53%, 局部达到碳酸盐黏土型锂矿矿床工业指标, 具有良好的勘查开发潜力。XRD分析结果表明锂绿泥石和蒙脱石是合山组Li超富集黏土岩中最重要的锂赋存矿物。本文推测Li主要以锂的独立矿物——锂绿泥石形式存在, 部分Li可能以离子吸附形式赋存于蒙脱石中。地球化学分析结果表明合山组黏土岩主要来源于下伏基底碳酸盐岩以及晚二叠世中酸性火山岩。本次工作为探讨桂西平果地区上二叠统合山组黏土岩Li赋存状态和物质来源提供了初步约束, 对下一步查明富锂黏土岩的时空分布和明确锂矿找矿方向具有十分重要的意义。
Abstract:
This paper reports the first discovery of lithium mineralized claystones in the Late Permian bauxite-bearing Heshan Formation in the Pingguo area in Western Guangxi, China. The contents of Li2O reach up to 0.2%-0.5%, which exceed the minimum grades of industry utilization for lithium, indicating a good exploration prospect. XRD analytical results show that cookeite and montmorillonite are the most important host minerals of lithium in the Li-rich claystones from the Heshan Formation. We suggest that Li mainly occurs as discrete minerals (i.e. cookeite), and partly adsorbed by clay minerals (i.e. montmorillonite). Combined with the published data, geochemical results in this study suggest that the claystones of the Heshan Formation were dominantly sourced from the weathered products of the underlying carbonate rocks and the Late Permian intermediate-felsic volcanic rocks in the southwestern South China. The results of this study not only provide preliminary constraints on the occurrence of Li and the provenance of Li-rich claystones from the Upper Permian Heshan Formation in the Pingguo area in Western Guangxi, but are also of great importance to investigate the tempo-spatial distribution of Li-rich claystones and determine the future Li-ore prospecting targets.

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相似文献/References:

[1]姚双秋,庞崇进,温淑女.桂西上二叠统合山组富锂黏土岩的发现及意义.大地构造与成矿学,2021.优先出版:001.doi:10.16539/j.ddgzyckx.2020.04.019

备注/Memo

备注/Memo:
收稿日期: 2020-04-26; 改回日期: 2020-07-20; 网络出版日期: 2020-09-15 项目资助: 国家自然科学基金项目(41803020)、有色及贵金属隐伏矿床勘查教育部工程研究中心项目(2018GCZX001)和广西桂西地区锂矿资源调查评价项目联合资助。 第一作者简介: 姚双秋(1983-), 男, 硕士, 高级工程师, 矿产普查与勘探专业。Email: ysq274@163.com 通信作者: 温淑女(1985-), 女, 博士, 主要从事岩石学与大地构造研究。 Email: wenshunv@glut.edu.cn
更新日期/Last Update: 2021-09-20