贵州水银洞卡林型金矿床方解石稀土元素地球化学特征与找矿意义
Characteristics of race earth elements of calcites from the Shuiyindong Carlin-type gold deposit, Guizhou, China and their exploration implication
查看参考文献37篇
|
文摘
|
水银洞是滇黔桂地区最大的、隐伏的、层控型卡林型金矿床。本文以水银洞金矿床为例,采集矿体裂隙、无矿围岩、断层破碎带、中上二叠统之间构造蚀变体和远离水银洞金矿床无矿区域地表裂隙等5种空间部位中的方解石,分析其稀土(REE)和As、Sb、Tl、Y等微量元素组成,以期能揭示成矿流体地球化学信息,并挖掘方解石用于滇黔桂地区隐伏矿找矿的地球化学指标。矿体裂隙中充填的与成矿作用相关的方解石具有中稀土(MREE)富集的配分模式和正Eu异常(δEu=1.01~1.51)的显著特征,显示了成矿流体是一种MREE相对富集,超常富Eu的还原性流体。其它空间部位方解石的REE配分模式和Eu异常特征(δEu=0.60~1.58)复杂多样,显示了这些方解石的多来源性、多期性和复杂性。不同空间部位方解石的As、Sb、Tl含量没有明显的区别,无法根据成矿相关元素(如As、Sb、Tl等)含量的高低,识别其与成矿作用的关系。在ΔMREE-δEu和Y/Ho-La/Ho图解中,矿体裂隙中的方解石可与其它空间部位的方解石区分,可大致判断方解石与成矿作用的相关性。成矿流体在经历Au沉淀成矿作用后,可能沿着各种断裂和微裂隙继续运移,甚至直达地表。方解石REE组成,为滇黔桂地区金矿隐伏矿找矿提供了一种新的指标。 |
|
其他语种文摘
|
The Shuiyindong deposit is the largest, concealed, strata-bound Carlin-type gold deposit in the Yunnan-Guizhou- Guangxi region in southwestern China. In this paper, calcites located in five different spatial positions (e.g. fissures of ores, wall rocks, fault zones, altered structural zone of the unconformity between Middle and Upper Permian strata at the Shuiyindong gold deposit, and fissures of surficial unmineralized rocks far away from the Shuiyindong deposit) were collected to analyze their contents of race earth elements (REE), As, Sb, Tl, and Y, in order to reveal the geochemical information of ore-forming fluids, and to explore applicable geochemical indicators of clacites for prospecting concealed gold ore bodies in the Dian-Qian-Gui area. Calcites associated with gold mineralization in fissures/fractures of ore bodies have obviously MREE-enriched distribution patterns with positive Eu anomalies (δEu=1.01-1.51), indicating that the ore-forming fluid could be a relatively MREE enriched and Eu superabundant reductive fluid. The REE patterns and Eu anomalies (δEu=0.60~1.58) of the calcites from other four spatial positions are complex and diverse, showing multi-source, multi-phase, and complexity of those calcites. There is no obvious difference among contents of As, Sb, and Tl of calcites from different spatial locations. It is hard to identify if there is relationship between the gold mineralization and the contents of ore-related elements (such as As, Sb, Tl, etc.) of calcites. In the ΔMREE-δEu and Y/Ho-La/Ho diagrams, the calcites in fissures of ores can be distinguished from the calcites occurred in other spatial positions. Thus, these two diagrams can be used to discriminate if the calcites are related to the gold mineralization. It is believed that after the gold precipitation from the ore-forming fluid , the evolved fluid could further continuously migrate along various faults and micro-cracks to the relatively shallow level, and even to the surface of the crust. Therefore, REE characteristics of calcites can be used as a new indicator for prospecting concealed Carlin-type gold deposits in the Yunnan-Guizhou-Guangxi region, southwestern China. |
|
来源
|
矿物学报
,2020,40(6):685-694 【核心库】
|
|
DOI
|
10.16461/j.cnki.1000-4734.2020.40.136
|
|
关键词
|
水银洞
;
卡林型金矿
;
方解石
;
稀土元素
|
|
地址
|
1.
贵州紫金矿业股份有限公司, 贵州, 贞丰, 562200
2.
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
3.
贵州省地质矿产勘查开发局一○五地质大队, 贵阳, 550018
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
1000-4734 |
|
学科
|
地质学 |
|
基金
|
国家重点研发计划
;
国家自然科学基金项目
;
贵州省教育厅青年科技人才成长项目
;
贵州省项目
|
|
文献收藏号
|
CSCD:6839042
|
参考文献 共
37
共2页
|
|
1.
刘建中. 贵州省贞丰县水银洞金矿床地质研究.
中国地质调查,2017,4(2):32-41
|
CSCD被引
10
次
|
|
|
|
|
2.
刘建中. 贵州贞丰-普安金矿整装勘查区找矿与研究新进展.
贵州地质,2017,34(4):244-254
|
CSCD被引
14
次
|
|
|
|
|
3.
Tan Q P. Carbon-oxygen isotopes and rare earth elements as an exploration vector for Carlin-type gold deposits: a case study of the Shuiyindong gold deposit, Guizhou Province, SW China.
Journal of Asian Earth Sciences,2017,148:1-12
|
CSCD被引
16
次
|
|
|
|
|
4.
佘海东. 稀土元素在热液中的迁移与沉淀.
岩石学报,2018,34(12):3567-3581
|
CSCD被引
26
次
|
|
|
|
|
5.
黄智龙. 云南会泽铅锌矿床脉石矿物方解石REE地球化学.
矿物学报,2001,21(4):659-666
|
CSCD被引
37
次
|
|
|
|
|
6.
Peng J T. Samarium-neodymium isotope systematics of hydrothermal calcites from the Xikuangshan antimony deposit (Hunan, China): the potential of calcite as a geochronometer.
Chemical Geology,2003,200:129-136
|
CSCD被引
72
次
|
|
|
|
|
7.
Su W C. Calcite Sm-Nd isochron age of the Shuiyindong Carlin-type gold deposit, Guizhou, China.
Chemical Geology,2009,258(3):269-274
|
CSCD被引
104
次
|
|
|
|
|
8.
张瑜. 贵州簸箕田金矿单矿物稀土元素和同位素地球化学特征.
地学前缘,2010,17(2):385-395
|
CSCD被引
29
次
|
|
|
|
|
9.
王加昇. 黔西南板其卡林型金矿床方解石REE、Fe、Mn元素特征及其对找矿的指示意义.
大地构造与成矿学,2018,42(3):494-504
|
CSCD被引
13
次
|
|
|
|
|
10.
孙国涛. 贵州苗龙金锑矿床方解石微量元素、Sr-Nd同位素地球化学特征及其意义.
矿物学报,2016,36(3):404-412
|
CSCD被引
8
次
|
|
|
|
|
11.
邓红. 贵州半坡锑矿床方解石稀土元素地球化学研究.
矿物学报,2014,34(2):208-216
|
CSCD被引
10
次
|
|
|
|
|
12.
代鸿章. 云南省富宁县者桑金矿床成矿流体特征.
现代地质,2014,28(5):893-904
|
CSCD被引
5
次
|
|
|
|
|
13.
Wang J S. Sm-Nd geochronology, REE geochemistry and C and O isotope characteristics of calcites and stibnites from the Banian antimony deposit, Guizhou Province, China.
Geochemical Journal,2012,46(5):393-407
|
CSCD被引
13
次
|
|
|
|
|
14.
冯彩霞. 滇西北白秧坪多金属矿集区东矿带方解石REE地球化学特征及意义.
吉林大学学报(地球科学版),2011,41(5):1397-1406
|
CSCD被引
4
次
|
|
|
|
|
15.
王加昇. 湘黔汞矿带脉石矿物方解石稀土元素、碳氧同位素特征及其指示意义.
矿物学报,2010,30(2):185-193
|
CSCD被引
7
次
|
|
|
|
|
16.
王国芝. 黔西南晴隆锑矿区萤石的稀土元素地球化学特征.
矿物岩石,2003,23(2):62-65
|
CSCD被引
36
次
|
|
|
|
|
17.
谢卓君. 贵州省三都—丹寨成矿带中卡林型金矿地球化学特征及成矿物质来源初探.
矿物岩石地球化学通报,2014,33(3):326-333
|
CSCD被引
6
次
|
|
|
|
|
18.
Su W C. Mineralogy and geochemistry of gold-bearing arsenian pyrite from the Shuiyindong Carlin-type gold deposit, Guizhou, China: implications for gold depositional processes.
Mineralium Deposita,2012,47(6):653-662
|
CSCD被引
63
次
|
|
|
|
|
19.
Su W C. Sediment-hosted gold deposits in Guizhou, China: Products of wall-rock sulfidation by deep crustal fluids.
Economic Geology,2009,104(1):73-93
|
CSCD被引
88
次
|
|
|
|
|
20.
Su W C. Visible gold in arsenian pyrite at the Shuiyindong Carlin-type gold deposit, Guizhou, China: Implications for the environment and processes of ore formation.
Ore Geology Reviews,2008,33(3):667-679
|
CSCD被引
72
次
|
|
|
|
|
了解气象卫星更多信息，请访问