西秦岭小沟里金矿、三洋坝金矿成矿环境演化与成矿模式探讨

丁高明; 卢树东; 祁小军; 张永强; 闫常魁; 李帅

西秦岭小沟里金矿、三洋坝金矿成矿环境演化与成矿模式探讨

1.
中国黄金集团地质有限公司, 北京 100012;中国地质大学(北京), 北京 100083
2.
中国黄金集团地质有限公司, 北京 100012
3.
中国黄金集团成县矿业有限公司, 甘肃陇南 742500

计量
- 文章访问数: 2480
- HTML全文浏览量: 0
- PDF下载量: 2466
出版历程
- 收稿日期: 2015-03-31
- 修回日期: 2015-06-28
- 发布日期: 2015-12-04

Mineralization Environment Evolution and Metallogentic Model of Xiaogouli and Sanyangba Gold Deposits in Western Qinling

1.
Geological Corporation of China Gold Group, Beijing 100012, China;China University of Geosciences, Beijing 100083, China
2.
Geological Corporation of China Gold Group, Beijing 100012, China
3.
Chengxian ore CO., LTD of China Gold Group, Longnan 742500, Gansu, China

摘要

摘要: 西秦岭小沟里金矿、三洋坝金矿位于徽成盆地西成铅锌矿田中西部。在前人研究资料的基础上,对这2个矿区的地层、构造、岩浆岩的成矿环境、演化过程进行了系统整理和分析,总结出矿床的成矿模式。矿区金矿体赋存于以绿泥绢云千枚岩为主的中泥盆统西汉水组上段(D₂x^2-3)第三岩性层中,为燕山早期的沉积变质-岩浆期后热液叠加改造的变质热液矿床,成矿期经历了徽成盆地闭合、隆升、造山期,对应于秦岭造山带碰撞造山、陆内推覆剪切构造演化阶段。矿体整体上顺地层产出,并受一套中酸性、钙碱性层状花岗斑岩脉及其上下盘北西西向挤压韧性构造带的复合控制。在陆内推覆剪切、压扭作用的大构造环境下,赋矿地层及矿体在走向和倾向上呈舒缓波状。受后期张、剪性构造的改造,矿体增厚,Au品位增高。本次研究为西成盆地成矿规律研究提供基础研究资料,为矿山企业下一步找矿方向以及外围资源整合提供理论参考和依据。
- 成矿环境 /
- 成矿模式 /
- 小沟里金矿 /
- 三洋坝金矿 /
- 西秦岭
Abstract: Xiaogouli and Sanyangba gold deposits of western Qinling are located at the mid-western of XichengPb-Zn ore-field, Huicheng Basin. Based on the previous research data, the mineralization environment evolution of these two deposits has been analyzed and studied inthis paper systematically, including stratum, structure and granitic magma. And then, the metallogenetic model has been summarized. For these two gold deposits, the ore bodies are occurred in the upper section of the Xihanshui Formation in the middle Devonian that dominate by chlorite sericitephyllite. And these two deposits are metamorphic hydrothermal deposits caused by early sedimentary metamorphism and magmatic hydrothermal superimposed transformation inearly Yanshan period. The mineralization period had experienced the closure, uplift and orogenic stages of the Huicheng basin, which are consistent with the tectonic evolution stages of collisional orogeny and continental thrust in the Qinling Mountains orogenic belt.On the whole, the ore bodies are distributed along the stratum,and are controlled jointly by a set of intermediate-acid and calcium-alkalinestratiform granite porphyry, as well as the NW-trending ductile structure zone. In the tectonic environment of intra-continental thrust and pressure torsion, the ore-bearing strata and ore bodies show slightly wavelikein strike and dip. By the reconstruction of the late extensional and shear structures, the ore bodiesare thickening and the gold grade is increased.This paper provide geological basis for studying the mineralization regularity of Huicheng basin, and the resource integration of mine periphery for mine enterprise.
- mineralization environment /
- metallogenetic model /
- Xiaogouli and Sanyangba gold deposits /
- Western Qinling

HTML全文

参考文献(6)

甘肃省地质矿产局.甘肃省区域地质志[M].北京:地质出版社,1989. Gansu provincial bureau of geology and resources.Regional geology annals of Gansu province[M]. Beijing:Geological Publishing House, 1989. 吴烈善,金安详.甘肃西成地区层状的花岗质岩脉地质地球化学特征及其与金矿关系[J].矿产与地质, 1997,11(5):303-308.

WU Lieshan, JIN Anxiang. Geochemical characers of the stratiform granitic veins and their relations to the gold deposits in xicheng region, ganshu[J]. Mineral Resources and Geology, 1997, 11(5):303-308.

张旺定.甘肃西成地区金铅锌矿床成矿系列与时空分布规律[D].西安,西北大学,2001. ZHANG Wangding. Gold deposits and Lead-Zinc deposits metallogenic series and Regularity of its time-space distribution of Xihe-Chengxian area, Gansu[D]. Xi'an, Northwest University, 2001. 何军.甘肃小沟里类卡林型金矿床地质地球化学特征[J].矿床地质,2002,21:602-605. HE Jun. Geological and Geochemical Characteristics of Xiaogouli Carlin-Like Gold Deposits, Gansu Province[J]. Mineral deposit, 2002, 21:602-605. 康亚龙,刘继顺,张旺定,等.甘肃西成盆地小沟里、三羊坝金矿床地球化学特征[J].地质找矿论丛,26(2):188-194. KANG Yalong, LIU Jishun, ZHANG Wangding,et al. Geochemcal characteristics of Xiaogoulr Sanyangba gold deposit of Xihe-Chengxian basin in Gansu province[J]. Contributions to Geology and Mineral Resources Research,26(2):188-194. 邵世才,汪东波.南秦岭三个典型金矿床的Ar-Ar年代及其地质意义[J].地质学报,75(1):106-110. SHAO Shicai, WANG Dongbo. Ar-Ar Dating of the Three Typical Gold Deposits and Its Geological Signif icance in the Southern Qinling Region[J]. Acta Geologica Sinica, 75(1):106-110. 杜子图,吴金国.西秦岭地区构造体系及金成矿构造动力学[M]. 北京:地质出版社,1998. DU Zitu, Wu Jinguo. Study on tectonic systems and gold metallogenictectono-dynamics in the region of west QinLing[M]. Beijing:Geological Publishing House, 1998. 范效仁.西秦岭构造演化与喷流成矿研究[D]. 长沙:中南大学,2001. FAN Xiaoren. The study of tectonic evolution and sedimentary-exhalative metallization of the western Qinling orogenic belt[D]. Chang sha,Central South University, 2001. 王学明,邵世才,汪东波.西秦岭金矿床包裹体、氢氧同位素特征及其地质意义[J].贵金属地质,9(1):44-48. WANG Xueming, SHAO Shicai, WANG Dongbo. The features and geological significance of inclusion and hydrogen and oxygen isotopes in western qinling area[J]. Geology and Resources, 9(1):44-48. 冯益民,曹宜铎,张二朋,等.西秦岭造山带的演化、构造格局和性质[J]. 西北地质,2003,36(1):1-10. FENG Yimin, CAO Yiduo, ZHANG Erming, et al. Tectonic evoluti on framework and nature of thewest Qinlingorogenic belt[J]. Northwestern Geology, 2003, 36(1):1-10. 国阿千,丁振举,文成雄.甘肃西成矿田花岗岩锆石U-Pb定年及地质意义[J].矿物学报(增刊):581-582.

GUO Aqian, DING Zhenju, WEN Chengxiong.Geological significance of Granite Zircon U-Pb dating in Xihe-Chengxian ore field, Gansu[J]. Acta Mineralogica Sinica(Supp):581-582.

林兵,程海生,苏文明,等.甘肃西成矿田铅锌矿床的成矿物质来源探讨[J]. 地质科学,1992(2):149-159. LIN Bing, CHENG Haisheng, SU Wenming. Source of ore-forming metals for lead-zinc de-posits in the xicheng orefield,gansu[J]. Scientice Geologica Sinica, 1992(2):149-159. 彭璇.西秦岭二长花岗岩岩体群同源性研究[J].西北地质, 2013, 46(1):83-90. PENG Xuan. Reserch on Homology for the Rock Group of Monzonite Granite in the Western Qinling[J]. Northwestern Geology, 2013, 46(1):83-90. 肖力,张继武,崔龙,等.西秦岭地区金矿控矿因素和资源潜力分析[J].黄金,2008,29(7):12-17. XIAO Li, ZHANG Jiwu, CUI Long, et al. An analysis of gold ore-controlling regularity and resource potential of western Qinling region[J]. The Gold, 2008, 29(7):12-17. 张传林,杨志华,朱立华,等.甘肃西和、成县地区区域构造演化[J].中国区域地质,1998,17(2):208-212. ZHANG Chuanlin, YANG Zhihua, ZHU Lihua, et al. Metallogenetic information on the lead isotopic geochemistry of the xicheng lead-zincorefield, Gansu province[J]. Geological Bulletin of China, 1998, 17(2):208-212. 徐东,刘建宏,赵彦庆.甘肃西秦岭地区金矿控矿因素及找矿方向[J]. 西北地质,2014,47(3):83-90. XU Dong,LIU Jianhong,ZHAO Yanqing. The Ore Control Factors of Gold Deposits and Prospecting Direction in West Qinling of Gansu Province[J]. Northwestern Geology,2014,47(3):83-90. 姚书振,周宗桂,吕新彪,等.秦岭成矿带成矿特征和找矿方向[J]. 西北地质,2006,39(2):156-178. YAO Shuzhen,ZHOU Zonggui, LU Xinbiao, et, al. Mineralization Characteristics and Prospecting Potential in the Qinling Metallogenic Belt[J]. Northwestern Geology, 2006,39(2):156-178. 徐学义,李婷,陈隽璐.西秦岭西段花岗岩浆作用与成矿[J]. 西北地质,2012,45(4):76-81. XU Xueyi, LI Ting, CHEN Juanlu. The Granitoids Magmatism and Mineralization in West Section of the Western Qinling,NW China[J]. Northwestern Geology, 2012, 45(4):76-81. Burchfiel,B C. Tectonostratigraphic map of the Cordilleran orogenic belt conterminous United States[M].Published by the Geolog ical Society of America,Inc,1993. Robertson,A H F. Role of the tectonic facies concept in orogenic analysis and its application to Tethys in the Eastern Mediterranean region[J]. Earth Science Rev iews,1994,37:1392-2131.

ZHANGQi,YIN Xianming,YIN Yong, et, al. Issuesonmetal-logenesis and prospecting of gold and copper deposits related to adakite and Himalayan type granite in west Qinling[J]. Acta Petrologica Sinica, 2009b, 25(12):3103-3122. Defant M J, Xu J F,Kepezhinskas P, et al. Adakites:Some variations on a theme[J]. Acta Petrologica Sinica, 2002, 18:129-142.

施引文献

资源附件(0)

计量

文章访问数: 2480
HTML全文浏览量: 0
PDF下载量: 2466
被引次数: 0

西秦岭小沟里金矿、三洋坝金矿成矿环境演化与成矿模式探讨

计量

出版历程

Mineralization Environment Evolution and Metallogentic Model of Xiaogouli and Sanyangba Gold Deposits in Western Qinling

计量

出版历程

目录