Geologcal-Geochemcal Features and Genesis of Dugou Gold Deposit of Li County, Gansu Province

YANG Gen-sheng; CHEN Yan-wen; HU Xiao-long; WANG Jian-xun; YIN Gang; TANG Yong-gang

Northwestern Geology > 2007 > 40(3): 75-84.

YANG Gen-sheng, CHEN Yan-wen, HU Xiao-long, et al. Geologcal-Geochemcal Features and Genesis of Dugou Gold Deposit of Li County, Gansu Province[J]. Northwestern Geology, 2007, 40(3): 75-84.

Citation:

YANG Gen-sheng, CHEN Yan-wen, HU Xiao-long, et al. Geologcal-Geochemcal Features and Genesis of Dugou Gold Deposit of Li County, Gansu Province[J]. Northwestern Geology, 2007, 40(3): 75-84.

Citation:

YANG Gen-sheng, CHEN Yan-wen, HU Xiao-long, et al. Geologcal-Geochemcal Features and Genesis of Dugou Gold Deposit of Li County, Gansu Province[J]. Northwestern Geology, 2007, 40(3): 75-84.

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Geologcal-Geochemcal Features and Genesis of Dugou Gold Deposit of Li County, Gansu Province

No.1 Geology and Mineral Exploration Team, Gansu Provincial Bureau of Geolgy and Mineral Exploration and Development, Tianshui 741020, China

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Received Date: February 09, 2007
Revised Date: April 08, 2007
Published Date: September 04, 2007

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Abstract

Abstract

Controlled by plutons and faults, the Dugou gold deposit is located in the western portion of the Hercynian fold belt in the Qinling Mts., and occurs in the Liba group of the outer contact zone of the Zhongchuan pluton. The natural type of the ore deposit belongs to the structure-alteration rock type. The deposit has already reaches largesize. The paper studies geological characteristics of the deposit from orebearing strata, ore-control structures, relationship of vein rock and mineralization, ore features and alteration of country rocks. Geochemistry of the Dugou gold deposit has been studied in terms of stableiso-topes, ore-forming fluids and REE. The isotopic geochemistry indicates that 34S changes in a small range and shows strong homo geneity, which is related to the emplacement of the Zhongchuan pluton. Hand O isotopes fall in between magmatic water and atmosphere water in the δD-δ¹⁸O diagram, reflecting that the ore-forming fluid is mixed ther malf luid. Lead isotopes are anom alous lead derived from mixture between U and Pb. This could be genetically in relation with the Zhongchuan pluton rich in U. From the Pb-Sriso-topic analy tical results, the main metallogenic period is inferred to be in the early Yanshan orogeny (171.6 Ma～173.4 Ma) close to that of the Zhongchuan pluton (181.5 Ma～219 Ma). The middle Devonian Liba group has Auinitial enrichment duringits deposit and diagenesis. Faults basically controlled spatial distribution and location of gold ore, while magma is anim portant thermal dynamic source and a major factor necessary for the deposit. Finally it formed the ore deposit by thermal brine rich in ore-forming materials along the faults. The genetic type for the deposit is the lixiviation composit type of post-magmatic hydrothermal and underground thermal brine. Tectono-dynamics superposed ore layers in 1～5 km range around the plut on are targets for prospecting.
- geological characteristics,
- geochemical characteristics,
- oregenesis,
- Dugou gold deposit

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References (44)

References

甘肃省地质矿产局.甘肃省岩石地层[M].武汉:中国地质大学出版社,1997.

蔡蕴华,李万花.西秦岭泥盆系岩石中斑点构造与金矿化[J].黄金:1991,12(5).

陈源.西秦岭北带中川花岗杂岩体与微细粒侵染型金矿关系探讨[J].有色金属矿产与勘查,1993,2(2):72-78.

陈源.西秦岭李坝金矿成矿物质来源探讨[J].西北地质,1994,15(2):5-9.

陈源.西秦岭北带与金矿有关的脉岩[J].黄金,1993,14(8):1-6.

程或,张旺定.西秦岭中川地区构造-岩浆活动及微细粒侵染型金矿成矿作用分析[J].地质找矿论丛,2001,16(2):94-98.

何世平,宋忠宝,冯益民.中川与柴家庄岩体周边金矿显微特征及找矿意义[J].河南地质,1995,13(2).

高珍权.李坝金矿床地球化学特征成因探讨[J].甘肃地质学报,1999,(增刊):49-53.

霍福臣,李永军.西秦岭造山带的建造与地质演化[M].西安:西北大学出版社,1998.

栾世伟,陈尚迪,曹殿春.金矿床地质及找矿方法[M].成都:四川科学技术出版社,1987.

李永琴,赵建群,赵彦庆.西秦岭成矿系统分析[J].甘肃地质,2006,15(1):47-52.

李锁成,陈永彬,赵彦庆.西秦岭北部蛇绿混杂岩带成矿作用与区域构造演化的关系[J].矿床地质,2005,24(6):656-662.

柳淼.李坝金矿地质特征[A].刘东升等.中国卡林型(微细粒型)金矿[C].南京:南京大学出版社,1994:160-202.

柳淼.李坝金矿的找矿标志及找矿方法[J].甘肃地质学报,1994,3(1):79-89.

裴荣富,熊群尧,沈保丰.难识别隐伏大矿,富矿资源潜力的地质评价[M].北京:地质出版社,2001.

宋忠宝,冯益民,何世平.中川花岗岩构造岩浆活动特征与成矿作用[J].西安地质学院学报,1997,19(4):48-52.

王中刚,于学元,赵运步,等.稀土元素地球化学[M].北京:科学出版社,1989.

许亚玲,毛永忠,王刚刚.甘肃省岷县-礼县一带柏家庄岩体群成岩成矿特点及成矿机制探讨[J].甘肃地质,2006,15(2):36-41.

殷先明,任丰寿,徐家乐,等.甘肃岩金矿床地质[M].兰州:甘肃科学技术出版社,2000.

殷勇,赵彦庆.甘肃西秦岭金矿富集区花岗岩与金成矿作用的关系[J].甘肃地质,2006,15(1):36-41.

张承中.秦岭泥盆系北带金矿成矿条件及寻找大型超大型金矿初探[J].甘肃地质学报,1999(增刊):36-40.

赵彦庆,李永琴,陈国忠.西秦岭金属成矿的准对称特征及找矿意义[J].甘肃地质学报,2004,13(2):85-88.

Bureau of Geology and Mineral Resources of Gansu Province.Stratiqraphy(Lithosratic) of Gansu Provinc[M].China University of Geosciences Press,Wuhan,1997.

CAI Wenhua,LI Wanhua.Spot structure and gold in West Qinling Devonian system[J].Gold,1991,12 (5).

CHEN Yuan.Discussion on the relationship between the Zhongchuan granitic complex and micro-disseminated gold deposits,north zone of western Qinling[J].Geological Exploration for Nonferrous Metals,1993,2 (2):72-78.

CHEN Yuan.Discussion on the source of ore-forming materials of Liba gold deposit,Western Qinling[J].Northwestem Geology,1994,15 (2):5-9.

CHEN Yuan.The vein rock related gold ore in northern zone of West Qinling[J].Gold,1993,14(8):1-6.

CHENG Huo,ZHANG Wangding.Tectonic-magmatic event and ore-forming of micro-dissminated gold deposit in Zhong chuan region,Western Qinling[J].Contributions to Geology and Mineral Resources Research,2001,16 (2):94-98.

HE Shiping,SONG Zhongbao,FENG Yimin.Zhongchuan and Caijazhuang rock mass peripheral gold ore micro characteristic and prospecting significance[J].Henan Geology,1995,13 (2).

GAO Zhenquan.Geochemical charactristics and genesis discussion of Liba gold deposit[J].Acta Geologica Gansu (supplement),1999,49-53.

HUO Fuchen,LI Yongjun.The formation and geological evolvement of orogenic belt in West Qinling[M].Northwest Univ.Pub.House,Xi'an,1998:123-129.

LUAN Shiwei,CHEN Shangdi,CAO Dianc??敮漮汔潨来椠捧慥??慯湧獹甠???????獳異灥灣汴敩浮敧渠瑯?????????扰牯??孴??嵍?娮??佣?奵慡湮焠楐湵杢????奩潮湧朠煈楯湵????书??畣潩穥桮潣湥朠?健慣牨慮?獬祯浧浹攬瑃牨祥?捧桤慵爬愱挹琸攷爮椼獢瑲椾挊獛″愳湝搠?楉琠獙?灮牧潱獩灮攬捚瑈楁湏朠?獩楡杮湱極普椬捚慈湁敏挠?潡普?浩敮瑧愮汁汮楡穬慹瑳楩潳渠?楦渠?坯敬獤琠敭浥?兡楬湬汯楧湥杮孥?嵩??捳瑹慳??敭漠汩潮朠楗捥慳??慲湮猠畑??ぬど?????金?????????扬牯?y.15(1):47-52.

LI Yongqin, ZHAO Jianqun, ZHAO Yanqing. Analysis of gold metallogenetic system in Western Qinling [J]. Gansu Geology. 15 (1): 47-52.

LI Suocheng,CHEN Yongbin,ZHAO Yanqing.Relationship between ore-forming process and regional tectonic evolution of ophiolitic mixtite belt in northern west Qinling region[J].Mineral Deposits,2005,24(6):656-662.

LIU Miao.Geological characteri stics of Liba gold deposit[A].LIU Dongsheng,et al.Chinese Carlin-type gold deposits[C].Universiy of Nanjing Press,Nanjing,1994,160-202(in Chinese).

LIU Miao.The ore-hunting indicators and prospecting methods of "Liba-type" gold deposit[J].Acta Geologica Gansu,1994,3 (1) 79-89 (in Chinese).

PEI Rongfu,XIONG Qunyao,SHEN Baofeng.Geological assessment on mineral resources potential for hard-identifed concealed large and rich-ore deposits[M].Geological Publishing House,Beijing,2001.

SONG Zhongbao,FENG Yimin,HE Shiping.Tectonic magmatic characteristics and metallogenesis of Zhongchuan granite[J].Bulletin of Xi'an Geology College,1997,19(4):48-52 (in Chinese).

WANG Zhonggang,YU Xueyuan,ZHAO Yunbu,et al.REE geochemistry[M].Scientific Publishing House,Beijing,1989.

XU Yanling,MAO Yongzhong,WANG Ganggang.Discuss on diagenetic and metallogenic features and metallogenic mechanism of Baijiazhuang rock mass in Minxian-Lixian Area of Gansu Province[J].Gansu Geollgy,2006,15(2):36-41.

YIN Xianming,REN Fenshou,XU Jiale,et al.Geology of gold deposits in Gansu Province[M].Gansu Publishing House of Science Technology,Lanzhou,2000.

YIN Yong,ZHAO Yanqing.Relationship between granite and gold mineralization in the gold enrichment area of Western Qinling,Gansu Province[J].Gansu Geology,2006,15(1):36-41.

ZHANG Chengzhong. Preliminary study on gold metallogenic factors and on prospecting for large super large scale gold deposits in the north zone of Devonian in Qinling area [J]. Acta Geologica Gansu, 1999, (supplement): 36-40.

ZHAO Yanqing, LI Yongqin, CHEN Guozhong . Para-symmetry characteristics and its prospecting significanec of metallization in Westem Qinling [J] . Acta Geologica Gansu, 2004, 13 (2): 85-88.

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Geologcal-Geochemcal Features and Genesis of Dugou Gold Deposit of Li County, Gansu Province

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