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Application of the Gravity Method to the Iron Ore Exploration in Eastern Hebei Province 被引量:5
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作者 ZHANG Guoli ZHAO Gengxin +3 位作者 HE Fuqing SU Yongjun TENG Fei KUANG Haiyang 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2015年第6期2097-2098,共2页
The nation-wide iron ore exploration is primarily based on aeromagnetic survey,based upon which a series of ground follow-up and drilling examination were carried out,and then reconnaissance and detailed investigation... The nation-wide iron ore exploration is primarily based on aeromagnetic survey,based upon which a series of ground follow-up and drilling examination were carried out,and then reconnaissance and detailed investigation and exploration were fulfilled.However,for some large. 展开更多
关键词 Application of the Gravity Method to the Iron ore exploration in Eastern Hebei Province
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Application of Tectono Geochemical Study in Deep Concealed Ore Body Exploration--As the Huize Super-Large Lead-Zinc Deposit an exemple 被引量:1
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作者 ZHANG Quan GUO Yuxinyue +1 位作者 PU Chuanjie WANG Feng 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2017年第S1期247-248,共2页
1 Geological Background of Minerlization or Geologic Setting The northeast of Yunnan1 Pb-Zn-Ag-Ge polymetallic ore district is an important part of the southwestern margin of the Yangtze block Sichuan-Yunnan-Guizhou
关键词 Application of Tectono Geochemical Study in Deep Concealed ore Body exploration NE As the Huize Super-Large Lead-Zinc Deposit an exemple MVT
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Interpretation of residual gravity anomaly caused by simple shaped bodies using very fast simulated annealing global optimization 被引量:3
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作者 Arkoprovo Biswas 《Geoscience Frontiers》 SCIE CAS CSCD 2015年第6期875-893,共19页
A very fast simulated annealing(VFSA) global optimization is used to interpret residual gravity anomaly.Since,VFSA optimization yields a large number of best-fitted models in a vast model space;the nature of uncerta... A very fast simulated annealing(VFSA) global optimization is used to interpret residual gravity anomaly.Since,VFSA optimization yields a large number of best-fitted models in a vast model space;the nature of uncertainty in the interpretation is also examined simultaneously in the present study.The results of VFSA optimization reveal that various parameters show a number of equivalent solutions when shape of the target body is not known and shape factor 'q' is also optimized together with other model parameters.The study reveals that amplitude coefficient k is strongly dependent on shape factor.This shows that there is a multi-model type uncertainty between these two model parameters derived from the analysis of cross-plots.However,the appraised values of shape factor from various VFSA runs clearly indicate whether the subsurface structure is sphere,horizontal or vertical cylinder type structure.Accordingly,the exact shape factor(1.5 for sphere,1.0 for horizontal cylinder and 0.5 for vertical cylinder)is fixed and optimization process is repeated.After fixing the shape factor,analysis of uncertainty and cross-plots shows a well-defined uni-model characteristic.The mean model computed after fixing the shape factor gives the utmost consistent results.Inversion of noise-free and noisy synthetic data as well as field data demonstrates the efficacy of the approach. 展开更多
关键词 Gravity anomaly Idealized body Uncertainty VFSA Subsurface structure ore exploration
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Deep Structural Framework and Genetic Analysis of Gold Concentration Areas in the Northwestern Jiaodong Peninsula, China: A New Understanding based on High-Resolution Reflective Seismic Survey 被引量:23
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作者 YU Xuefeng SHAN Wei +8 位作者 XIONG Yuxin GENG Ke SUN Yuqin CHI Naijie GUO Baokui LI Dapeng LI Hongkui SONG Yingxin YANG Deping 《Acta Geologica Sinica(English Edition)》 CAS CSCD 2018年第5期1823-1840,共18页
The gold concentration areas in the northwestern Jiaodong Peninsula constituted an important gold metallogenetic region in Eastern China during the Mesozoic. The deep geological bodies' texture characteristic is impo... The gold concentration areas in the northwestern Jiaodong Peninsula constituted an important gold metallogenetic region in Eastern China during the Mesozoic. The deep geological bodies' texture characteristic is important for exploring the resources thoroughly and understanding the metallogenic process. The detailed textures were revealed using high-resolution seismic profiles through the three major ore-controlling structures-Sanshandao fault zone, Jiaojia fault zone and Zhaoping fault zone. This study aims to establish a deep structural framework of this area. Based on their formation mechanism, the fault structures developed in the area can be divided into regional and local fault structures. The structural styles are characterised by superimposing their compressional, strike-slip and extensional multi-stage activities. The crust is cut by vertical structures corresponding to a left-lateral strike-slip fault system on the surface. Nearby these structures are the arc-shape structures formed by multi-stage magma intrusions into the upper crust. Bounded by the Tancheng–Lujiang and Muping–Jimo fault zones, the current Jiaodong block, developed a series of NE-trending strike-slip fault systems, was probably formed by the assemblage of several obliquely aligned blocks. The intensive magmatism and hydrothermal activity between the blocks induced large-scale mineralisation. It provides a new angle of view for understanding the cratonic destruction and large ore-concentration formed during the Mesozoic. 展开更多
关键词 ore concentration area deep exploration strike-slip faults Sanshandao fault zone cratonic destruction Shandong
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Digital Mine Research and Practice Based on Mining and Metallurgy System Engineering
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作者 An-lin Shao 《Frontiers of Engineering Management》 2016年第1期67-73,共7页
Iron ore is necessarily basic raw material for industrialization and urbanization and related to the industrial distribution and development programming.The lean iron ore resource in our country is high-cost and low-e... Iron ore is necessarily basic raw material for industrialization and urbanization and related to the industrial distribution and development programming.The lean iron ore resource in our country is high-cost and low-efficiency,which cannot meet the demand of iron and steel industry,and even endanger the safety of industrial economy.Ansteel mining has created "grade decisionbased multi-system integration" mode of mining and metallurgy system engineering and realized scale and efficient development of lean iron ore on basis of the construction of digital mines.Moreover,the "wisdom mines" was proposed and had led to the transformation and upgrading of iron developments. 展开更多
关键词 exploration of lean iron ore mining and metallurgy system engineering digital mine wisdom mine
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