|Table of Contents|

Space-time Relationship of Gold Deposit to Lead-Zinc Deposit in Fengtai Ore Field in South Qinling(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2007年第01期
Page:
15-21
Research Field:
Publishing date:

Info

Title:
Space-time Relationship of Gold Deposit to Lead-Zinc Deposit in Fengtai Ore Field in South Qinling
Author(s):
LI Qiang 1; WANG Bing-qi2; MA Zhi-guo3; WANG Xiao-hu1
1. School of Earth Sciences and Resourses Management, Chang’ an University, Xi’an 710054, Shaanxi, China; 2. Ba fangshan Lead-Zinc Mine of Baoji City, Feng County 721703, Shaanxi, China; 3. Baguamiao Gold Mine of Shaanxi, Feng County 721705, Shaanxi, China
Keywords:
Fengtai basin;  Gold deposit;  Lead-Zinc deposit;  fluid characteristic;  minerogenetic model;  South Qinling
PACS:
P618.51;P618.4
DOI:
-
Abstract:
Geological and geochemical fluid geochemistry study of Baguamiao Gold deposit and Bafangshan-Erlihe Lead-Zinc deposit in Fengtai basin show that the range ofδ(30Si)values of Gold deposits and Lead-Zinc deposit are close to the values of submarine exhalation, indicating its hydrothermal sedimentary origin. The value ofδ(34 S)are also close to each other, but the Sulphur source of Lead-Zinc deposit is more complicated and broadly. Carbon and Oxygen isotope of carbonate have the characteristic of the hydrothermal sedimentary while that of Gold deposit are more close to igneous rock, which indicates that deuterism have more effect. The study of fluid inclusions shows that the range of homogenizations temperatures of Gold deposit are more widely and have the characteristic of polyphase. All evidence indicates that Gold deposit and Lead-Zinc deposit are similarity in mineralization resource, fluid, isotope. which reflect that there is a certain genetic relation between the hydrothermal exhalation and Gold, Lead-Zinc mineralization. At the same time Gold mineralization are different from Lead-Zinc mineralization. Considering the metallogenic environment, it is pointed that the Zinc mineralization and location is controlled by the thermal altered metamorphism and dynamometamcrphism and the Gold deposit is controlled by the late-magmatic hydrothermalism. A minerogenetic model of Gold and Lead-Zinc deposit in Fengtai basin is set up.

References:

[1] 祁思敬,李 英. 秦岭 泥盆纪铅 锌成矿带[M] . 北京 :地 质出 版社,1991.
[2] 王俊发,张复新,炎金才,等. 秦岭泥盆 系层控金属矿床[M] . 西安 :陕西科学技术出版社,1991.
[3] 王集磊,何 伯墀,李健 中,等. 中国秦 岭型 铅锌 矿床[M] . 北 京 :地质出版社,1996.
[4] 方维萱. 陕西铅硐山大型铅锌矿床热水沉 积岩相特征[J] . 沉 积学报,1999,17(1):44-50.
[5] 刘方杰,贾润幸,郭 健. 陕西八卦庙特大型金矿 床成矿机理 20 地球科学与环境学报 第 29 卷 [J] . 西北地质科学,2000,21(1):27-36.
[6] 张复新. 陕西双王金矿成矿作用及金的赋存状态研 究[J] . 西 北地质,1997,18(2):28-32.
[7] 方维萱,黄转莹,刘方杰. 八卦庙超大型金矿床构造 矿物 地 球化学[J] . 矿物学报,2000,20(2):121-127.
[8] 李文 亢,方永 安,石 准立,等. 秦岭 东部 微 细金 矿 成矿 条件 [M] . 北京 :地质出版社,1993.
[9] 王学明,汪东 波,邵世才,等. 陕西八卦庙金矿 钠长石的成因 [J] . 矿床地质,2001,20(3):223-228.
[10] 吴 烈善,韦龙 明. 八 卦庙 超 大型 金矿 地球 化学 特 征及 物源 [J] . 地质找矿论丛,1999,14(4):62-68.
[11] 薛春纪. 秦岭泥 盆纪热水 沉积[M] . 西安 :西 安地图 出版社, 1997.
[12] 王 涛,刘淑 文,隗合明,等. 热水沉积矿床研 究的现状与趋 势[J] . 长安大学学报 :地球科学版,2004,26(4):6-9.
[13] 刘方杰,方维萱,赫 英,等. 秦岭造山带热水 沉积矿石建造 特征及意义[J] . 有色金属矿产与勘查,1999,8(6):343-347.
[14] 张复新,宗 静婷,马 建秦. 秦岭 卡林型 金矿 及相 关问 题探讨 [J] . 矿床地质,1998,17(2):172-184.
[15] 刘 方杰,孙 勇,裴先治. 八卦 庙金矿床脆 韧 性剪切构造及 其控矿特征[J] . 西北 大学 学报 :自然 科学 版,1999,29(6): 569-574.
[16] 韦龙明. 陕西八卦 庙金矿 床地质 特征及 其成因 分析[C] //刘 东升. 中国 卡林型(微细 浸染型)金矿. 南京 :南京大 学出版 社,1994.
[17] 朱宏州,郭 健,安峥嵘. 陕西八卦庙金矿床硅同位素组成及 地质意义[J] . 有色金属矿产与勘查,1998,7(6):326-329.
[18] 丁悌平,蒋少涌,万 德芳,等. 硅同 位素地 球化学[M] . 北京 : 地质出版社,1994.
[19] 冯建忠,汪东坡,王学明, 等. 陕西八卦庙金矿脆 韧性剪切带 控矿特征 及成 矿 构造 动力 学 机制[J] . 中 国 地 质,2002,29 (1):58-66.
[20] 邵世才,汪东坡. 南秦岭三个典型金矿床的 Ar A r 年代及其 地质意义[J] . 地质学报,2001,75(1):106-110.
[21] 郑作平. 八卦庙金矿 地质及稳 定同位素 研究[J] . 陕西 地质, 1994,12(2):22-30.
[22] 祁思敬,李 英. 秦 岭热水沉 积型铅锌(铜)矿床[M] . 北京 : 地质出版社,1993.
[23] 赵鹏大,陈永清. 地质 异常矿体 定位的基 本途径[J] . 地 球科 学 ———中国地质大学学报,1998,23(2):111-114.
[24] Sew ard T M. 金的热液 地球化学[J] . 地质 地球化学,1993, 21(1):37-47.
[25] S henb erger D M,Bames H L. S olubili ty of Gold in Aqueous Su lfide S olut ions f rom 150 to 350 ℃[J] . Geochimi ca et Cosmochimica Acta,1989,53 :269-278.
[26] Gammons C H,Williams-Jones A E. The Solubility of Au-Ag alloy + AgCl in HC l /NaCl s oluti on at 300 ℃:New Dat a on the S tabili ty of Au(Ⅰ) Ch loride Com plexes in Hyd rothermal f luids[J] . Geochimica et Cosmochimica Acta,1995,59(17): 3 453-3 468.
[27] 吴厚泽,苏惠娴. 高温高 压气液相 中金迁移 形式的实 验研究 [J] . 矿产与地质,1997,11(5):330-335.

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Last Update: 1900-01-01