渝东南老厂坪铅锌矿床闪锌矿微量元素组成特征
Trace element characteristics in sphalerites from the Laochangping Pb-Zn deposit in the Southeastern Chongqing
查看参考文献64篇
|
文摘
|
位于扬子地台东南缘的湘西-黔东铅锌成矿带是华南低温大面积成矿域的重要组成部分。前人研究表明,该区铅锌矿床成因类型属于MVT型铅锌矿床,但是,对其中Ge和Ga的富集特征和赋存形式的研究十分薄弱。位于该成矿带西北段的渝东南的老厂坪是重庆地区最大的铅锌矿床,本文以该矿床中闪锌矿为研究对象,通过LA-ICPMS原位分析,结合激光剥蚀曲线,分析该矿床闪锌矿微量元素组成特征,揭示其中Ge和Ga等关键金属元素在闪锌矿中的分布规律及赋存形式,探讨其替代机制,为矿山关键金属Ge和Ga的综合利用提供实际依据。结果表明,该矿床闪锌矿以富集Cd、Ga、Ge、Fe,贫Mn、Co、Ni、In为特征,形成于中低温环境,其中Ge和Ga均达到了伴生工业品位要求。类质同象是其主要赋存形式,Ge和Ga在闪锌矿中分布不均是其重要特征,Cu是影响Ge和Ga富集的关键控制因素,耦合替代方式为3Zn~(2+)↔Ge~(4+)+2Cu~+和2Zn~(2+)↔Ga~(3+)+Cu~+。总体而言,该矿床闪锌矿微量元素组成特征与MVT型铅锌矿床基本一致,结合其他地质地球化学特征,本文认为该矿床属于MVT型铅锌矿床。 |
|
其他语种文摘
|
The Western Hunan-Eastern Guizhou Pb-Zn metallogenic belt, located in southeast margin of the Yangtze Block, is an important part of the South China large-scale low-temperature metallogenic domain. More and more studies have shown that the Pb-Zn deposits in the belt belong to the MVT type of Pb-Zn deposit. However, researches on the enrichment characteristics and existing forms of critical metals (Ge and Ga, etc.) in those deposits are very limited. The Laochangping Pb-Zn deposit of the southeastern Chongqing, located in the northwest part of the metallogenic belt, is the largest Pb-Zn deposit in Chongqing City. Based on the LA-ICPMS in-situ analysis, combined with the time-resolved depth profiles, we have realized the features of trace elements in sphalerites from the Laochangping deposit, realved the distribution regulation and existing forms of critical metals of Ge and Ga in sphalerites of the deposit, discussed their substitution mechanisms in sphalerites, and provided practical basis for the comprehensive utilization of critical metals of Ge and Ga. The results show that the sphalerite of the Laochangping deposit is characterized by the enrichment of Cd, Ga, Ge, and Fe and depletion of Mn, Co, Ni, and In. The sphalerite was formed in the medium-low temperature environment. Both Ge and Ga contents meetan the requirements of industrial grades for the associated Ga and Ge elements. The existing forms of Ga and Ge are dominated by the isomorphism. The uneven distribution of Ge and Ga in sphalerites is an important feature. Cu is a key factor controlling the enrichment of Ge and Ga in the sphalerite, with the possible coupling substitution modes of 3Zn~(2+)↔Ge~(4+)+2Cu~+ and 2Zn~(2+)↔Ga~(3+)+Cu~+. In general, the compositional characteristics of trace elements in sphalerites from the deposit are basically consistent with those of the MVT Pb-Zn deposit. Combined with other geological and geochemical characteristics of the Laochangping deposit, it is suggested that the Laochangping deposit belongs to the MVT type of Pb-Zn deposit. |
|
来源
|
矿物学报
,2021,41(6):623-634 【核心库】
|
|
DOI
|
10.16461/j.cnki.1000-4734.2021.41.083
|
|
关键词
|
闪锌矿
;
关键金属
;
Ge和Ga
;
LA-ICPMS
;
MVT型铅锌矿床
;
渝东南老厂坪
|
|
地址
|
1.
中国科学院地球化学研究所, 矿床地球化学国家重点实验室, 贵州, 贵阳, 550081
2.
中国科学院大学, 北京, 100049
3.
重庆地质矿产研究院, 外生成矿与矿山环境重庆市重点实验室, 重庆, 400042
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
1000-4734 |
|
学科
|
地质学 |
|
基金
|
贵州省项目
;
国家自然科学基金
;
国家重点研发计划
|
|
文献收藏号
|
CSCD:7077800
|
参考文献 共
64
共4页
|
|
1.
王登红. 关键矿产的研究意义、矿种厘定、资源属性、找矿进展、存在问题及主攻方向.
地质学报,2019,93(6):1189-1209
|
被引
111
次
|
|
|
|
|
2.
毛景文. 关键矿产-国际动向与思考.
矿床地质,2019,38(4):689-698
|
被引
75
次
|
|
|
|
|
3.
毛景文. 21世纪以来中国关键金属矿产找矿勘查与研究新进展.
矿床地质,2019,38(5):935-969
|
被引
78
次
|
|
|
|
|
4.
翟明国. 战略性关键金属矿产资源:现状与问题.
中国科学基金,2019,33(2):106-111
|
被引
186
次
|
|
|
|
|
5.
涂光炽.
分散元素地球化学及成矿机制,2003:116-380
|
被引
1
次
|
|
|
|
|
6.
Holl R. Metallogenesis of germanium-A review.
Ore Geology Reviews,2007,30(3/4):145-180
|
被引
46
次
|
|
|
|
|
7.
European Commission X.
Critical raw materials for the EU. Report of the Ad hoc Working Group on defining critical raw materials. Technical report,2014
|
被引
1
次
|
|
|
|
|
8.
Schulz K J.
Critical Mineral Resources of the United States-Economic and Environmental Geology and Prospects for Future Supply. USGS professional paper,2017
|
被引
1
次
|
|
|
|
|
9.
Werner T T. The world's by-product and critical metal resources part III: A global assessment of indium.
Ore Geology Reviews,2017,86:939-956
|
被引
24
次
|
|
|
|
|
10.
Watari T. Review of critical metal dynamics to 2050 for 48 elements.
Resources Conservation and Recycling,2020,155:104669
|
被引
6
次
|
|
|
|
|
11.
戴自希. 世界铅锌资源的分布、类型和勘查准则.
世界有色金属,2005(3):15-23,6
|
被引
12
次
|
|
|
|
|
12.
Leach D L. Sedement-hosted lead-zinc deposits: A global perspective.
Econ Geol,2005,100:561-607
|
被引
97
次
|
|
|
|
|
13.
叶霖. 锗的地球化学及资源储备展望.
矿床地质,2019,38(4):711-728
|
被引
17
次
|
|
|
|
|
14.
李珍立. 贵州天桥铅锌矿床闪锌矿微量元素组成初探.
矿物学报,2016,36(2):183-188
|
被引
11
次
|
|
|
|
|
15.
李珍立. 云南富乐铅锌矿床黄铁矿微量(稀散)元素组成及成因信息: LA-ICPMS研究.
岩石学报,2019,35(11):3370-3384
|
被引
14
次
|
|
|
|
|
16.
胡宇思. 滇东北麻栗坪铅锌矿床微量元素分布与赋存状态:LA-ICPMS研究.
岩石学报,2019,35(11):3477-3495
|
被引
23
次
|
|
|
|
|
17.
叶霖. 四川天宝山铅锌矿床硫化物微量元素组成:LA-ICPMS研究.
岩石学报,2016,32(11):3377-3393
|
被引
50
次
|
|
|
|
|
18.
Yuan Bo. Element enrichment characteristics: Insights from element geochemistry of sphalerite in Daliangzi Pb-Zn deposit, Sichuan, Southwest China.
Journal of Geochemical Exploration,2018,186:187-201
|
被引
24
次
|
|
|
|
|
19.
Wei Chen. Distribution and occurrence of Ge and related trace elements in sphalerite from the Lehong carbonate-hosted Zn-Pb deposit, northeastern Yunnan, China: Insights from SEM and LA-ICP-MS studies.
Ore Geology Review,2019,115:103175
|
被引
7
次
|
|
|
|
|
20.
Li Zhenli. Trace elements in sulfides from the Maozu Pb-Zn deposit, Yunnan Province, China: Implications for trace element incorporation mechanisms and ore genesis.
American Mineralogist,2020,105(11):1734-1751
|
被引
6
次
|
|
|
|
|
了解气象卫星更多信息，请访问