新疆霍什布拉克铅锌矿床地质、地球化学特征研究
GEOLOGICAL AND GEOCHEMICAL CHARACTERISTICS OF HUOSHIBULAKE PB-ZN DEPOSIT IN XINJIANG
查看参考文献54篇
|
文摘
|
新疆霍什布拉克铅锌矿床的矿体和含矿地层的产状一致,主矿体的矿石具有条带状、纹层状构造,矿石中大量发育霉球状、管状和环带状生物结构,显示出层控、热水沉积成因的特点。含矿地层和矿石样品的主量元素PER图解显示含矿碳酸盐岩以含石膏的灰岩为主,围岩的白云岩化微弱,矿化与硅化关系密切。矿石、含矿碳酸盐岩和页岩、粉砂质灰岩和泥质粉砂岩等碎屑岩具有各自鲜明的微量元素分布特征,上层矿体矿石中较强的富集过渡族元素Ti、V、Cr、Mn、Co、Ni、非活动性元素Zr、Hf及大离子亲石元素Sr和Pb,亏损活动性元素Na、K、Rb、Ba和非活动性元素Nb、Th。其围岩重结晶泥晶灰岩富集Ti、Mn、Ni、Sr和Pb,亏损Na、K、V、Fe、Rb、Ba、Zr、Hf、Nb和Th。下层矿体的围岩页岩和泥质、粉砂质灰岩样品的微量元素分布在平均上地壳线附近,部分样品较明显的富集Ti、V、Cr、Mn、Co、Ni、Rb、Y、Zr和Hf,亏损Na、Fe、Sr、Nb。上层矿体矿石和下层矿体围岩中的部分碎屑岩富集强亲岩浆元素Cr、Co、Ni,且上层矿体矿石的稀土元素分布模式具有强的正Eu异常,部分下层矿体围岩具有较明显的正Eu异常。地质和地球化学特征显示该矿床属于热水沉积矿床中的SEDEX型矿床。 |
|
其他语种文摘
|
The ore bodies and their hosting strata of Huoshibulake Pb-Zn deposit show consistent occurrence, and the ores of the main orebody are characterized by striped and laminar structures, in addition to well-developed organic textures such as framboidal spherules, tubular and zonal textures. All of these show that the ore deposit is strata-bound and of hydrothermal origin. The major elemental PER diagrams for samples of ores and ore-hosting rocks reveal that the ore-hosting carbonate rocks are mainly gypsiferous limestones with development of weak dolomitization, and that mineralization is intimately correlated to silicification. The ores, ore-hosting carbonate rocks and clastic rocks including shale, silt limestone and pelitic siltstone all show distinct trace elemental distribution patterns. Ore samples of the upper ore-body are enriched in transitional elements like Ti, V, Cr, Mn, Co and Ni, immobile elements like Zr and Hf, as well as large ion lithophile elements like Sr and Pb, but are depleted in mobile elements such as Na, K, Rb, Ba and immobile elements such as Nb, Th. Samples of recrystallized micritic limestones are enriched in transitional elements like Ti, Mn, Ni, large ion lithophile elements like Sr, Pb, depleted Zr, Hf, Nb, Th, and trace elements of the surrounding rocks for the lower ore-body. Samples of shales, silt limestones and pelitic sihstones distributed near the average upper crust line are obviously enriched in transitional elements like Ti, V, Cr, Mn, Co and Ni, large ion lithophile element Rb and immobile elements like Y, Zr, Hf, but are depleted in Na, Fe, Sr, Nb. All ore samples from the upper ore-body and part of the samples from the lower ore-body and its surrounding rocks are enriched in strong magmaphile elements like Cr, Co and Ni. The rare earth elemental distribution patterns for ore samples from the upper ore-body are characterized by strong positive europium anomaly, while samples from the wall rocks for the lower ore-body show clearly positive europium anomaly, which is lower than that for the upper ore-body. These geological and geochemical evidences support the conclusion that this deposit is a SEDEX-type hydrothermal deposit. |
|
来源
|
大地构造与成矿学
,2007,31(2):205-217 【核心库】
|
|
关键词
|
西南天山
;
霍什布拉克铅锌矿床
;
热水沉积矿床
;
矿床地质
;
矿床地球化学
|
|
地址
|
1.
中国科学院广州地球化学研究所, 广东, 广州, 510640
2.
中国科学院地球化学研究所, 贵州, 贵阳, 550002
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
1001-1552 |
|
学科
|
地质学 |
|
基金
|
国家973计划
;
中国科学院知识创新工程重要方向项目
|
|
文献收藏号
|
CSCD:2856929
|
参考文献 共
54
共3页
|
|
1.
别风雷. 川西呷村超大黑矿型矿床成矿流体稀土元素组成.
岩石学报,2000,16(4):575-580
|
被引
20
次
|
|
|
|
|
2.
曹荣龙. 新疆北部板块与地体构造格局.
新疆北部固体地球科学新进展,1993:11-26
|
被引
12
次
|
|
|
|
|
3.
陈哲夫. 新疆开合构造与成矿特征的有关问题.
地质通报,2004,23(3):214-221
|
被引
20
次
|
|
|
|
|
4.
何国琦. 新疆主要造山带地壳发展的五阶段模式及成矿系列.
新疆地质,1995,13(2):99-193
|
被引
64
次
|
|
|
|
|
5.
胡霭琴.
新疆北部地质演化及成岩成矿规律,1997:210-223
|
被引
3
次
|
|
|
|
|
6.
贾承造.
塔里木盆地及周边地层(下册),2004:2-77
|
被引
1
次
|
|
|
|
|
7.
刘德权.
中国新疆矿床成矿系列,1996:1-101
|
被引
9
次
|
|
|
|
|
8.
Lottermoser B G. Rare earth element study of exhalites within the Willyama Supergroup, Broken Hill Block, Australia.
Mineral Deposita,1989,24:92-99
|
被引
17
次
|
|
|
|
|
9.
Lydon J H. Ore deposit model-14, Volcanogenic massive sulfide deposits, part 2:genetic models.
Geoscience Canada,1988,15:43-66
|
被引
2
次
|
|
|
|
|
10.
Parkes R J. Recent studies on bacterial populations and processes in subsea floor sediments:A review.
Hydrogeological Journal,2000,8:11-28
|
被引
33
次
|
|
|
|
|
11.
Whitbread M A.
Geochemistry:Exploration,Environment,Analysis,2004,4:129-141
|
被引
15
次
|
|
|
|
|
12.
Trueman C N. A geochemical method to trace the taphonomic history of reworked bones in sedimentary settings.
Geology,1997,25(3):263-266
|
被引
1
次
|
|
|
|
|
13.
Taylor S R. The continental crust:Its composition and evolution.
An examination of the geochemical record preserved in sedimentary rocks,1985:1-30
|
被引
17
次
|
|
|
|
|
14.
Taylor S R. The composition and evolution of the continental-crust-rare-earth element evidence from sedimentary-rocks.
Philosophical Transactions of the Royal Society of London,1981,301(1461):381-399
|
被引
17
次
|
|
|
|
|
15.
Sun S S. Chemical and isotopic systematics of oceanic basalts:Implications for mantle composition and processes.
Journal of the Geological Society Special publications,1989,42:313-345
|
被引
3212
次
|
|
|
|
|
16.
Stix J. Caldera-forming processes and the origin of submarine volcanogenic massive sulfide deposits.
Geology,2003,31(4):375-378
|
被引
3
次
|
|
|
|
|
17.
Stanley C R. Petrologic hypothesis testing with Pearce element ratio diagrams, derivation of diagram axes.
Contributions to Mineralogy and Petrology,1989,103(1):78-89
|
被引
25
次
|
|
|
|
|
18.
Slack J F. Multistage hydrothermal silicification and Fe-Tl-As-Sb-Ge-REE enrichment in the Red Dog Zn-Pb-Ag district, northern Alaska:Geochemistry, origin and exploration applications.
Economic Geology,2004,99:1481-1508
|
被引
2
次
|
|
|
|
|
19.
Pearce T H. The identification and assessment of spurious trends in Pearce-type ratio variation diagrams:a discussion of some statistical arguments.
Contributions to Mineralogy and Petrology,1987,97:529-534
|
被引
1
次
|
|
|
|
|
20.
Pearce T H. The validity of Pearce element ratio analysis in petrology:an example from the Uwekahuna laccolith, Hawaii.
Contributions to Mineralogy and Petrology,1991,108:212-218
|
被引
1
次
|
|
|
|
|
了解气象卫星更多信息，请访问