全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

九江—瑞昌矿集区的3D结构及对区域找矿的启示

DOI: 10.6038/j.issn.0001-5733.2012.12.029, PP. 4169-4180

Keywords: 九瑞矿集区,重磁多尺度边缘检测,重磁三维物性反演

Full-Text   Cite this paper   Add to My Lib

Abstract:

本文分析了九瑞地区重、磁场的分布特征.运用最新的方法技术对已有的重磁资料重新进行处理:采用重磁多尺度边缘检测方法,对九瑞矿集区区域重力和航磁数据进行了边缘检测,并根据检测结果重新厘定了断裂系统的展布位置.在整理、分析九瑞地区地质、地层物性资料的基础上,对实测的1∶5万重磁数据进行较细致的准三维反演.同时将重磁三维物性反演应用到岩浆岩空间结构研究中,获得了矿集区地层结构及岩浆岩三维空间形态特征.根据反演所得磁化率强弱,分析了岩体的基性程度,为寻找与火山岩、侵入岩体有关的金属矿产提供了指示信息.最终建立的模型给出了地下地层的分布特征、控矿构造的展布规律、与成矿相关岩体的三维形态以及已知矿点的空间分布特征,为在九瑞矿集区的深部寻找隐伏矿体提供了新的信息.

References

[1]  常印佛, 刘湘培, 吴言昌. 长江中下游铜铁成矿带. 北京: 地质出版社, 1991: 1-147. Chang Y F, Liu X P, Wu Y C. Iron-Copper Mineralization Belt of Middle-Lower Yangtze Valley (in Chinese). Beijing: Geological Publishing House, 1991: 1-147.
[2]  Pan Y M, Dong P. The Lower Changjiang (Yangzi / Yangtze River) metallogenic belt, east central China: intrusion- and wall rock-hosted Cu-Fe-Au, Mo, Zn, Pb, Ag deposits. Ore Geology Reviews, 1999, 15(4): 177-242.
[3]  赵文津. 长江中下游金属矿找矿前景与找矿方法. 中国地质, 2008, 35(5): 771-802. Zhao W J. Ore prospects and ore exploration methods for metal deposits in the middle and lower Yangtze River valley. Geology in China (in Chinese), 2008, 35(5): 771-802.
[4]  Dong S W, Xiang H S, Gao R, et al. Deep structure and ore formation within Lujiang-Zongyang volcanic ore concentrated area in Middle to Lower Reaches of Yangtze River. Acta Petrologica Sinica, 2000, 26(9): 2529-2542.
[5]  滕吉文.强化开展地壳内部第二深度空间金属矿产资源地球物理找矿、勘探和开发. 地质通报, 2006, 25(7): 767-771. Teng J W. Strengthening geophysical exploration and exploitation of metallic minerals in the second deep space of the crustal interior. Geological Bulletin of China (in Chinese), 2006, 25(7): 767-771.
[6]  Li Y G, Oldenburg D W. 3-D inversion of magnetic data. Geophysics, 1996, 61(2): 394-408.
[7]  Archibald N, Gow P, Boschetti F. Multiscale edge analysis of potential field data. Exploration Geophysics, 1999, 30(2): 38-44.
[8]  Austin J R, Blenkinsop T G. The Cloncurry Lineament: Geophysical and geological evidence for a deep crustal structure in the Eastern Succession of the Mount Isa Inlier. Precambrian Research, 2008, 163(1-2): 50-68.
[9]  管烨. 云南三江地区地壳三维构造格架与矿集区关系研究. 北京: 中国地质科学院, 2005. Guan Y. Relationship between 3D tectonic frame and metallogenic district: Theory and implications in the Three Rivers Region, Yunnan (in Chinese). Beijing: Chinese Academy of Geological Sciences, 2005.
[10]  严加永. 长江中下游成矿带深部背景综合地球物理研究. 北京: 中国科学院地质与地球物理研究所, 2010. Yan J Y. Integrated geophysical study for deep background of the Middle and Lower Reach of the Yangtze River metallogenic Belt(in Chinese). Beijing: Institute of Geology and Geophysics, CAS, 2010.
[11]  Li Y G, Oldenburg D W. 3-D inversion of gravity data. Geophysics, 1998, 63(1): 109-119.
[12]  姚长利, 郑元满, 张聿文. 重磁异常三维物性反演随机子域法方法技术. 地球物理学报, 2007, 50(5): 1576-1583. Yao C L, Zheng Y M, Zhang Y W. 3-D gravity and magnetic inversion for physical properties using stochastic subspaces. Chinese J. Geophys. (in Chinese), 2007, 50(5): 1576-1583.
[13]  Hornby P, Boschetti F, Horowitz F G. Analysis of potential field data in the wavelet domain. Geophys. J. Int., 1999, 137(1): 175-196.
[14]  Horowitz F, Hornby P, Boschetti F. Developments in the analysis of potential field data via multiscale edge representation (in Exploration beyond 2000; conference handbook) Preview 2000, 84, 77.
[15]  Holden D J, Archibald N J, Boschetti F, et al. Inferring geological structures using wavelet-based multiscale edge analysis and forward models. Exploration Geophysics, 2000, 31(4): 617-621.
[16]  王大勇. 长江中下游矿集区综合地质地球物理研究—以九瑞、铜陵矿集区为例. 长春: 吉林大学, 2010. Wang D Y. The integrated geophysical and geological study in the ore belt of the Middle and Lower Reach of the Yangtze River—The cases study of Tongling and Jiurui ore district(in Chinese). Changchun: Jilin University, 2010.
[17]  Keating P, Pinet N. Use of non-linear filtering for the regional-residual separation of potential field data. Journal of Applied Geophysics, 2011, 73(4): 315-322.
[18]  Enmark T. A versatile interactive computer program for computation and automatic optimization of gravity models. Geoexploration, 1981, 19(1): 47-66.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133