Characteristics of Ore-Forming Fluid in the Zhenyuan Gold Orefield, Yunnan Province, China
查看参考文献29篇
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文摘
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The Zhenyuan (镇沅) gold orefield is located in the Ailaoshan (哀牢山) gold belt, Sanjiang (三江) metallogenic region, China. The fluid inclusions (FIs) in mineralized quartz samples, collected from four deposits, i.e., Laowangzhai (老王寨), Donggualin (冬瓜林), Kudumu (库独木), and Daqiaoqing (搭桥箐), in the orefield, were studied to reveal ore-forming process. Only aqueous-type and H2O-NaCl-type FIs were observed in the samples. Two generations of FIs are identified due to the spatial occurrences of FIs in host minerals. The early generation is located in the internal zone of quartz crystal, and it has higher homogenization temperatures varying from 180 to 255 ℃ and salinities ranging from 8.7% to 11%; the late generation, often with beating bubbles under room temperature, is developed in the quartz margin, its homogenization temperatures is lower within 95 to 160 ℃. After elimination of the late generation of FIs, early generation FIs compositions were tested. Gaseous phases in the FIs were H_2O and CO_2, with low contents of N_2, CH_4, and C_2H_6, and the liquids mainly contains N_a~+, K~+, Ca~(2+), Mg~(2+), Cl~-, and SO_4~(2-). The reappraisal of the previously published hydrogen and oxygen isotope results suggested that the early generation of ore-forming fluid was mainly primary magma hydrothermal, while the late generation fluid contains large amounts of meteoric water. Thus, the result showed that Zhenyuan gold orefield may differ from typical orogenic deposits, which contains abundant CO_2-dominated FIs. The two generations FIs developed as quartz grew displaying a continuous evolution of the ore-forming fluids. |
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来源
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Journal of Earth Science
,2013,24(2):203-211 【核心库】
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DOI
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10.1007/s12583-013-0323-4
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关键词
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fluid inclusion (FI)
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ore-forming fluid
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Ailaoshan orogenic belt
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Zhenyuan gold orefield
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地址
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China University of Geosciences (Beijing), State Key Laboratory of Geological Processes and Mineral Resources, Beijing, 100083
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语种
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英文 |
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文献类型
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研究性论文 |
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ISSN
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1674-487X |
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基金
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supported by the National Key Basic Research Development Program
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the Century Training Program Foundation for the Talents of Humanities and Social Science by the State Education Commission
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国家教育部高等学校学科创新引智计划项目
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文献收藏号
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CSCD:4793505
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参考文献 共
29
共2页
|
|
1.
Bi X W. Characteristics of Ore-Forming Fluid of Three Gold Deposits in Ailaoshan Gold Mineralization Belt.
Acta Mineralogica Sinica,1997,17(4):435-441
|
CSCD被引
1
次
|
|
|
|
|
2.
Bian Q T. Preliminary Study on the Relationship between the Crust-Mantle Structure and the Formation of Laowangzhai Superlarge Gold Deposit.
Science in China Series D: Earth Sciences,1998,41(6):561-569
|
CSCD被引
3
次
|
|
|
|
|
3.
Bodnar R J. Revised Equation and Stable for Determining the Freezing Point Depression of H2O-NaCl Solutions.
Geochimica et Cosmochimica Acta,1993,57:683-684
|
CSCD被引
470
次
|
|
|
|
|
4.
Burnard P G. Mantle Crustal and Atmospheric Noble Gases in Ailaoshan Gold Deposits, Yunnan Province, China.
Geochimica et Cosmochimica Acta,1999,63(10):1595-1604
|
CSCD被引
118
次
|
|
|
|
|
5.
Deng J. Evidence of Mantle-Rooted Fluids and Multi-Level Circulation Ore-Forming Dynamics: A Case Study from the Xiadian Gold Deposit, Shandong Province, China.
Science in China Series D: Earth Sciences,2003,46(Suppl):123-134
|
CSCD被引
20
次
|
|
|
|
|
6.
Deng J. Origin of Gold-Bearing Fluid and Its Initiative Localization Mechanism in Xiadian Gold Deposit, Shandong Province.
Chinese Journal of Geochemistry,2002,21(3):282-288
|
CSCD被引
4
次
|
|
|
|
|
7.
Deng J. Character and Post-Ore Changes, Modifications and Preservation of Cenozoic Alkali-Rich Porphyry Gold Metallogenic System in Western Yunnan, China.
Acta Petrologica Sinica,2010,26(6):1633-1645
|
CSCD被引
4
次
|
|
|
|
|
8.
Deng J. Superimposed Orogenesis and Metallogenesis in Sanjiang Tethys.
Mineral Deposits,2010,29(1):37-42
|
CSCD被引
2
次
|
|
|
|
|
9.
Deng J. Research Advances of Superimposed Orogenesis and Metallogenesis in the Sanjiang Tethys.
Acta Petrologica Sinica,2011,27(9):2501-2509
|
CSCD被引
5
次
|
|
|
|
|
10.
Field C W. Light Stable-Isotopes Systematics in the Epithermal Environment.
Reviews in Economic Geology,1985,2:99-128
|
CSCD被引
8
次
|
|
|
|
|
11.
Goldfarb R J. The Late Cretaceous Donlin Greek Gold Deposit, Southwestern Alaska: Controls on Epizonal Ore Formation.
Economic Geology,2004,99:643-671
|
CSCD被引
35
次
|
|
|
|
|
12.
Guo C Y. Characteristics and Their Geological Significance of Rare Earth Elements in Chang'an Gold Deposit, Yunnan Province.
Gold,2009,30(1):7-11
|
CSCD被引
2
次
|
|
|
|
|
13.
Hou Z Q. Sanjiang Tethyan Metallogenesis in S.W. China: Tectonic Setting, Metallogenic Epochs and Deposit Types.
Ore Geology Reviews,2007,31(1/4):48-87
|
CSCD被引
203
次
|
|
|
|
|
14.
Hu R Z. Mineralizer Constraintion Gold Mineralization of Ailaoshan Gold Belt.
Science in China Series D: Earth Sciences,1998,41(Suppl):74-82
|
CSCD被引
7
次
|
|
|
|
|
15.
Hu Y Z.
Geology of Gold Deposits in Ailaoshan,1995:154-219
|
CSCD被引
1
次
|
|
|
|
|
16.
Huang Z L. The Geochemistry of Lamprophyres in the Laowangzhai Gold Deposits, Yunnan Province, China: Implications for Its Characteristics of Source Region.
Geochemical Journal,2002,36:91-112
|
CSCD被引
14
次
|
|
|
|
|
17.
Huang Z L. The Petrochemistry of Lamprophyres in Laowangzhai Gold Orefeild, Yunnan.
Journal of Guilin Institute of Technology,1997,17(4):324-332
|
CSCD被引
1
次
|
|
|
|
|
18.
Li D M.
Gold Deposits in Ailaoshan Ophiolitic Melange Zone,1998:1-17
|
CSCD被引
1
次
|
|
|
|
|
19.
Li Y. Isotope Geochemistry and Genesis of Mojiang Gold Deposit, Yunnan.
Geology Geochemistry,1998,26(4):15-20
|
CSCD被引
1
次
|
|
|
|
|
20.
Sun X M. Crust and Mantle Contributions to Gold-Froming Process at the Daping Deposit, Ailaoshan Gold Belt, Yunnan, China.
Ore Geology Reviews,2009,36:235-249
|
CSCD被引
59
次
|
|
|
|
|
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