Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Chinese Journal of Geophysics》 2017-12
Add to Favorite Get Latest Update

Magnetic fields reduction to pseudo-gravity anomalies using multi-scale windows in the condition of non-uniform property and its application to searching for DSO

YAN Ting-Jie;GAN Wen-Long;GUAN Yan-Wu;College of Geo-exploration Science and Technology,Jilin University;Development and Research Center of China Geological Survey;Century Iron Mines Corporation;  
The Direct-Shipping Ore(DSO)is a kind of high-grade iron-rich ore.The Sokoman iron formation with low iron content is of high density and strong magnetism,causing high gravity and magnetic anomalies in the Schefferville mining district,central Labrador Trough in Canada.While the leached enrichment of hematite and goethite(also called DSO)with high ironcontent is featured by high density and weak magnetism,causing only high gravity anomalies.Conventional filter algorithms cannot extract the magnetic and gravity anomalies arising from DSO.Based on the Poisson equation,we propose a magnetic reduction to the pseudo-gravity anomaly.It transforms magnetic fields into gravity anomalies,then compares the results with gravity observations.The residual gravity anomalies arising from only high-density and non-magnetic DSO are derived.The residual anomalies are interpreted by density inversion and 2.5 Dinteractive inversion.Although the Poisson formula was proposed for a long time,it is used only in qualitative analysis of gravity and magnetic data so far.This paper derives classical Poisson formula in the condition of non-uniform density and magnetic properties,then realizes its process,and presents magnetic field reduction to the gravity field using multi-scale linear regression analysis by moving-windows.The principles of mathematics in this formula can quantify the magnetic and gravity inversion and interpretation.Finally,the pseudo-gravity reduction using multi-scale linear regression analysis by moving-windows is adopted to successfully delineate the DSO with high-density and low magnetism from the Sokoman iron formation in the Schefferville mining district,central Labrador Trough in Canada.
【Fund】: 国家自然科学基金重点项目(40930314)资助
【CateGory Index】: P618.31;P631
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
Chinese Journal Full-text Database 9 Hits
1 JI Xiao-Lin;WANG Wan-Yin;QIU Zhi-Yun;Gravity & Magnetic Institute of Chang′an University,College of Geology Engineering and Geomatics,Chang′an University,Key Laboratory of Western China′s Mineral Resources and Geological Engineering,Ministry of Education,Chang′an University;;The research to the minimum curvature technique for potential field data separation[J];地球物理学报;2015-03
2 WANG Jionghui;YU Yuxing;School of Earth Sciences and Resources,China University of Geosciences(Beijing);Minmetals Exploration and Development Co.,Ltd;;Ore-forming processes and exploration methods of DSO iron deposits in Labrador Trough,Canada[J];地学前缘;2015-02
3 WU Xing;LIU Chun-cheng;LI Jun;College of Geophysics,Chengdu University of Technology;CNOOC Research Institute;;Pseudo-gravity technology and its application[J];物探化探计算技术;2014-04
4 ZHAO Ru-min,ZHU Guang-hui,BAI Guan-jun(CNOOC Research Institute.Beijing 100027,China);The application of correspondence analysis technique of gravitational and magnetic anomalies in the process of factual data,in Myanmar region[J];地球物理学进展;2013-02
5 Zeng Qin-qin1,2 and Liu Tian-you1,2.1.Institute of Geophysics and Geomatics,China University of Geosciences(Wuhan),Wuhan City,Hubei Province,430074,China2.Ministry of Education Key Lab of Tectonics and Petroleum Resources,China University of Geosciences(Wuhan),Wuhan City,Hubei Province,430074,China;A potential field separation method based on Empirical Mode Decomposition[J];石油地球物理勘探;2010-06
6 LIU Yan-hua1,CHEN Zong-gang2,OU YANG Chang-liang3(1.Central South University,Changsha 410083,China;2.Northwest Exploration and Designing Institute,CHECC,Lanzhou 730050,China;3.Chengdu Exploration and Designing Institute,CHECC,Chengdu 610072,China);THE APPLICATION OF CORRESPONDENCE ANALYSIS OF GRAVITY AND MAGNETIC ANOMALIES IN XIANGSHAN AREA[J];物探与化探;2008-06
7 ZENG Zhao-fa,WU Yan-gang,HAO Li-bo,WANG Zhe-jiang,HUANG HangCollege of GeoExploration Science and Technology,Jilin University,Changchun130026,China;The Poisson's Theorem Based Analysis Method and Application of Magnetic and Gravity Anomalies[J];吉林大学学报(地球科学版);2006-02
8 Yin Xiuhua Li Yishi Liu Zhanpo (Institute of Geology, China Seisinological Bureau, Beijing 100029);INTERNAL CORRESPONDENCE ANALYSIS OF GRAVIMETRIC AND MAGNETIC DATA FOR THE NORTHERN PART OF SOUTH-NORTH TECTONIC ZONE[J];地震地质;1999-04
Chinese Journal Full-text Database 10 Hits
1 LI Lu;ZHANG Shuang;College of Geo-Exploration Science and Technology,Jilin University;;Combined analysis of gravity and magnetic anomalies using normalized source strength[J];Global Geology;2018-02
2 XU Gang;Anhui geological and mineral exploration bureau 322 geological team;;Application and analysis of induced polarization method in copper veins of Yang Village in Anhui,Mount Huangshan[J];世界有色金属;2017-23
3 YAN Ting-Jie;GAN Wen-Long;GUAN Yan-Wu;College of Geo-exploration Science and Technology,Jilin University;Development and Research Center of China Geological Survey;Century Iron Mines Corporation;;Magnetic fields reduction to pseudo-gravity anomalies using multi-scale windows in the condition of non-uniform property and its application to searching for DSO[J];地球物理学报;2017-12
4 Ji Songda;;Application of Gravity and Magnetic Method in the Exploration of Goaf in Iron Producing Area on Mudanjiang-Jiamusi Passenger Line[J];铁道勘察;2017-05
5 GUO Fu-Sheng;LIN Zi-Yu;LI Guang-Rong;DENG Ju-Zhi;XIE Cai-Fu;YANG Hai-Yan;WU Zhi-Chun;ZHOU Wan-Peng;JIANG Yong-Biao;LI Hong-Xing;FANG Gen-Xian;State Key Laboratory Breeding Base of Nuclear Resources and Environment,East China University of Technology;School of Earth Sciences,East China University of Technology;School of Geophysics and Measurement-control Technology,East China University of Technology;;Study on the geological structure of Xiangshan uranium-bearing volcanic basin:evidences from magnetotelluric sounding and GOCAD modeling[J];地球物理学报;2017-04
6 ZHOU Hao-wei;China National Offshore Oil Corporation;;STRATIGRAPHY IN CENTRAL ISLAND ARC OF MYANMAR[J];地层学杂志;2017-01
7 YANG Hong-ming;Anhui Institute of exploration technology;;Gravity magnetic characteristics and metallogenic prognosis of typical deposits in the region of the saddle[J];世界有色金属;2016-22
8 QU Jin-Hong;GUO Su-Ran;ZHOU Xi-Hua;JIANG Zuo-Xi;LIU Qian-Kun;China Aero Geophysical Survey and Remote Sensing Center for Land and Resources;Key Laboratory of Airborne Geophysics and Remote Sensing Geology,Ministry of Land and Resources;Psychological and Educational Research Center,University of International Relations;;The correlation analytical method and its application to GT aerogravimeter drift correction[J];物探与化探;2016-04
9 ZHAO XiaoChen;LIU ChiYang;WANG JianQiang;ZHAO Yan;ZHANG DongDong;WANG Lei;DENG Yu;GUO Pei;State Key Laboratory of Continental Dynamics,Department of Geology,Northwest University;;Mesozoic-Cenozoic tectonic uplift events of Xiangshan Mountain in northern North-South Tectonic Belt,China[J];岩石学报;2016-07
10 Zhang Xin;Wang Li;Du Xuebin;Lanzhou Institute of Seismology,China Earthquake Administration;Nanjing Seismic Station of Earthquake Administration of Jiangsu Province;;A Review of Studies on the Telluric Currents[J];地球科学进展;2016-07
【Secondary Citations】
Chinese Journal Full-text Database 10 Hits
1 ZHANG Zhi-hou,XU Shi-zhe,YU Hai-long,WU Le-yuan(Department of Earth SciencesZhejiang,University,Hangzhou 310027,china);Study of extending methods of iteration of downward continuation in potential field[J];浙江大学学报(工学版);2013-05
2 LIU Bing1,2,3,WU Shi-min1,4,LONG Gen-yuan1,2,GUO Xiang-yan1,2(1.Key Laboratory of Marginal Sea Geology,Chinese Academy of Sciences/South China Sea Institute of Oceanology,Chinese Academy of Sciences,Guangzhou510301,China; 2.Graduate University of Chinese Academy of Sciences,Beijing100039,China; 3.Hainan Institute of Geological Survery,Haikou570206,China; 4.Department of earth sciences,Sun Yat-Sen University,Guangzhou510275 China);Basement characteristics and tectonic evolution in Qiongdongnan basin[J];地球物理学进展;2012-04
3 SHI Lei1,GUO Liang-hui2,3,MENG Xiao-hong2,3(1.Institute of Geophysics,China Earthquake Administration,Beijing 100081,China; 2.School of Geophysics and Information Technology,China University of Geosciences,Beijing 100083,China; 3.Key Laboratory of Geo-detection(China University of Geosciences,Beijing),Ministry of Education,Beijing 100083,China);3D correlation imaging of the vertical gradient of magnetic total field anomaly[J];地球物理学进展;2012-04
4 YAO Shao-ping,XU Rong-hua,YAN Jun-ling,LEI Liang-cheng (Jiangxi Institute of Geological Survey,Nanchang 330030,China);The application of gravitational method of exploration in analyzing construction of transmissive mine[J];地球物理学进展;2012-04
5 ZHANG Chun-guan1,2,WANG Fei-fei3,BAI Yu-bin1,GUO Qiang3(1.School of Petroleum Resources,Xi'an Shiyou University,Xi'an 710065,China; 2.Department of Geology,Northwest University,Xi'an 710069,China; 3.Research Institute,Shaanxi Yanchang Petroleum(Group) Co.Ltd.,Xi'an 710069,China);Studies of magnetic method for hydrocarbon reservoir and its application in northern Shaanxi,China[J];地球物理学进展;2012-04
6 LIU Jianbao1,SUN Zhen1,LIU Yanbin2,ZHAO Zhongxian1,WANG Zhangwen1(1 CAS Key Laboratory of Marginal Sea Geology,South China Sea Institute of Oceanology,Chinese Academy of Sciences,Guangzhou 510301,China;2 Rock and Mineral Test Center in Henan Province,Zhengzhou 450003,China);PROGRESS OF CENOZOIC TECTONIC STUDIES IN QIONGDONGNAN BASIN[J];海洋地质前沿;2012-04
7 CHEN Zhao-xi1,2,MENG Xiao-hong1,2,GUO Liang-hui1,2(1.State key laboratory of Geological Processes and Mineral Resources,China University of Geosciences,Beijin,100083,China; 2.School of Geophysics and Information Technology,China University of Geosciences,Beijing 100083,China);Review of 3D property inversion of gravity and magnetic data[J];地球物理学进展;2012-02
8 WANG Wan-yin,QIU Zhi-yun (Institute of Gravity and Magnetic Technology,Chang'an University,College of Geology Engineering and Geomatics, Chang'an University,Key Laboratory of Western China's Mineral Resources and Geological Engineering, Ministry of Education,Chang'an University,Xi'an 710054,China);The research to a stable minimum curvature gridding method in potential data processing[J];地球物理学进展;2011-06
9 REN Jian-Ye~(1,2),LEI Chao~3 1 Key Laboratory of Tectonics and Petroleum Resources of Ministry of Education,China University of Geosciences, Wuhan 430074,China 2 Structural Research Center of Oil & Gas Bearing Basin,Ministry of Education,Wuhan 430074,China 3 Faculty of Earth Resources,China University of Geosciences,Wuhan 430074,China;Tectonic stratigraphic framework of Yinggehai-Qiongdongnan Basins and its implication for tectonic province division in South China Sea[J];地球物理学报;2011-12
10 TAI Zhen-hua,ZHANG Feng-xu,WU Yan-gang(College of GeoExploration Science and Technology,Jilin University,Changchun 130026,China);GRAVITY AND MAGNETIC FIELD CHARACTERISTICS AND ORE-SEARCH PROSPECT DISTRICTS IN DAOLANG AND DUGE AREA[J];物探与化探;2011-06
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved