|
|
Gravity three-dimensional (3D) inversion and deep ore prospecting potential in Qinglong-Dachang ore concentration area in Guizhou Province |
QU Niannian1,2,3, LI Jiabin1,2,3 |
1. Engineering Technology Inovation Center of Mineral Resources Explorations in Bedrock Zones, Ministry of Natural Resources, Guiyang 550081, China; 2. Guizhou Geological Survey, Guiyang 550081, China; 3. Guizhou Engineering Research Center for Geological Geophysical Exploitation and Application, Guiyang 550081, China |
|
|
Abstract Qinglong-Dacalhang ore concentration area is one of the important antimony deposit areas in Guizhou Province, and the fault structures and magnetic activities have great influence on the antimony mineralization. Based on gravity data, geology, mineral and geochemical data, the authors analyzed the fault structures and 3D morphology of granite body synthetically, by processing and inverting the gravity data in this paper. Combined with the condition the fault structures, shape of the rock body and geology, mineral and Sb-Au element anomalies, the authors also deduced that the deep faults and shallow faults provided a migration pathway for the magmatic hydrothermal fluids and controlled the top surface of the rock body. The limestone of Maokou Formation, Emeishan Basalt and fault structures were well developed in Dachang-Bihen area of the clamping area between fault F8 and F11, along with fault F11. The Sb-Au element anomalies were high, with large scale, which were a favorable region for deep ore prospecting. This research would provide the geophysical basis for deep ore prospecting.
|
Received: 01 July 2019
|
|
|
|
|
[1] 陈娴,苏文超,黄勇.贵州晴隆锑矿床成矿流体He-Ar同位素地球化学[J].岩石学报,2016,32(11):3312-3320. [2] 胡瑞忠,付山岭,肖加飞.华南大规模低温成矿的主要科学问题[J].岩石学报,2016,32(11):3239-3251. [3] 熊灿娟,刘建中,刘帅,等.晴隆大厂锑矿流体包裹体研究[J].贵州大学学报:自然科学版,2013,30(6):47-52. [4] 王亮,张应文,刘盛光.区域重磁资料圈定贵州境内侵入岩体及局部地质构造[J].物探与化探,2009,33(3):245-249,255. [5] 黄金明,张明华,杨海翔,等.华南地区深部岩体圈定成果报告[R].北京:中国地质调查局发展研究中心,2015. [6] Wang W Y,Pan Y,Qiu Z Y.A new edge recognition technology based on the normalized vertical derivative of the total horizontal derivative for potential field data[J].Appl Geophys,2009,6(3):226-233. [7] 贵州省地质调查院.中国区域地质志·贵州志[M].北京:地质出版社,2018. [8] 戴传固,秦守荣,陈建书,等.试论贵州深部隐伏断裂特征[J].地质科技情报,2013,32(6):1-6,13. [9] 李家斌,屈念念.综合地球物理方法在黔西页岩气勘探中的应用[J].中国地质调查,2018,5(6):97-105. [10] 范祥发. 从1:50万重力异常探讨贵州省区域地质构造格架[J].贵州地质,1999,16(3):195-198. [11] 王亮,龙秀洪,张应文,等.贵州1:20万重力异常分布特征与透露的区域地质构造新信息[J].贵州地质,2007,24(1):64-69. [12] 王亮,张应文,刘盛光.贵州重磁异常分区特征与区域成矿区(带)分布特色[J].物探与化探,2009,33(5):487-492. |
[1] |
FU Shengyun, SHEN Changming. Geological characteristics of Banxi antimony deposit in Taojiang County of Hunan Province[J]. , 2020, 7(1): 30-37. |
[2] |
GE Zhihua, HAN Li, HAN Longmei. Geological characteristics and ore-controlling factors of Yindongliang antimony deposit in Gansu Province[J]. , 2018, 5(5): 29-34. |
[3] |
ZHANG Xijun, LI Jiabin, MENG Yinghua, QU Niannian. Application of induced polarization method in antimony ore exploration of Dachang in Guizhou[J]. , 2018, 5(1): 16-22. |
[4] |
ZHANG Kun, HE Yu-xian, YAN Jia-yong. 3D Inversion System of Magnetotelluric Sounding and its Application[J]. , 2015, 2(1): 25-30. |
|
|
|
|