{"title":"Gravity inversion based on polynomial density-contrast functions","authors":"Jie Liu, Jianzhong Zhang, Z. Zou","doi":"10.1190/gem2019-112.1","DOIUrl":"https://doi.org/10.1190/gem2019-112.1","url":null,"abstract":"","PeriodicalId":422414,"journal":{"name":"International Workshop on Gravity, Electrical & Magnetic Methods and Their Applications, Xi'an, China, 19–22 May 2019","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126879521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Model-based layer stripping FWI of Ground Penetrating Radar data","authors":"N. Huai, Z. Zeng, Jing Li, Zhipeng Hu","doi":"10.1190/gem2019-103.1","DOIUrl":"https://doi.org/10.1190/gem2019-103.1","url":null,"abstract":"","PeriodicalId":422414,"journal":{"name":"International Workshop on Gravity, Electrical & Magnetic Methods and Their Applications, Xi'an, China, 19–22 May 2019","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126889946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yong Liu, N. Yu, Xuben Wang, Xuelin Cai, Xiating Chen
{"title":"Preliminary study on electrical structure of crust-mantle in Lianghe-Luxi SW Yunnan","authors":"Yong Liu, N. Yu, Xuben Wang, Xuelin Cai, Xiating Chen","doi":"10.1190/gem2019-102.1","DOIUrl":"https://doi.org/10.1190/gem2019-102.1","url":null,"abstract":"","PeriodicalId":422414,"journal":{"name":"International Workshop on Gravity, Electrical & Magnetic Methods and Their Applications, Xi'an, China, 19–22 May 2019","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121593502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yan Liangjun, Fengjiao Xu, Xie Xingbing, Wenbao Hu, Lei Zhou
{"title":"Exploration for Devonian reef in southern China with 3D MT inversion result","authors":"Yan Liangjun, Fengjiao Xu, Xie Xingbing, Wenbao Hu, Lei Zhou","doi":"10.1190/gem2019-007.1","DOIUrl":"https://doi.org/10.1190/gem2019-007.1","url":null,"abstract":"","PeriodicalId":422414,"journal":{"name":"International Workshop on Gravity, Electrical & Magnetic Methods and Their Applications, Xi'an, China, 19–22 May 2019","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123890258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Summary Multiple geophysical methods are often employed to improve subsurface understanding, especially in areas with little a priori geological information. Therefore, quantitative methods for integrating multiple physical property models are fundamental to taking the interpretation further into geology di ff erentiation of distinct units. Hence, applications of machine learning are growing in geosciences due to its potential to integrate various sources of information. We evaluate the performance of density-, distribution-, centroid-, and correlation-based clustering methods in the identification of the three geologic units in density, susceptibility and conductivity models derived from a synthetic model, and show that correlation-based clustering gives the best results for geology di ff erentiation. We apply the method to physical property models recovered from field data over a copper deposit and the results show a good spatial correspondence with the known geology from drilling information, allowing the construction of a quasi-geology model.
{"title":"Geology differentiation of geophysical inversions using machine learning","authors":"A. Melo, Yaoguo Li","doi":"10.1190/gem2019-076.1","DOIUrl":"https://doi.org/10.1190/gem2019-076.1","url":null,"abstract":"Summary Multiple geophysical methods are often employed to improve subsurface understanding, especially in areas with little a priori geological information. Therefore, quantitative methods for integrating multiple physical property models are fundamental to taking the interpretation further into geology di ff erentiation of distinct units. Hence, applications of machine learning are growing in geosciences due to its potential to integrate various sources of information. We evaluate the performance of density-, distribution-, centroid-, and correlation-based clustering methods in the identification of the three geologic units in density, susceptibility and conductivity models derived from a synthetic model, and show that correlation-based clustering gives the best results for geology di ff erentiation. We apply the method to physical property models recovered from field data over a copper deposit and the results show a good spatial correspondence with the known geology from drilling information, allowing the construction of a quasi-geology model.","PeriodicalId":422414,"journal":{"name":"International Workshop on Gravity, Electrical & Magnetic Methods and Their Applications, Xi'an, China, 19–22 May 2019","volume":"3 21","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131838837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zhipeng Hu, Z. Zeng, W. Feng, Xiaoqian Kang, Ling Zhang, Kun Wang
{"title":"2D imaging by SFCW based MIMO array radar system with Vivaldi antenna","authors":"Zhipeng Hu, Z. Zeng, W. Feng, Xiaoqian Kang, Ling Zhang, Kun Wang","doi":"10.1190/gem2019-028.1","DOIUrl":"https://doi.org/10.1190/gem2019-028.1","url":null,"abstract":"","PeriodicalId":422414,"journal":{"name":"International Workshop on Gravity, Electrical & Magnetic Methods and Their Applications, Xi'an, China, 19–22 May 2019","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134378826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"3D Boundary Conditions in 3D Finite-Element Electromagnetic Forward Modelling","authors":"Laura Schmidt, Z. Ren, T. Kalscheuer, G. Kreiss","doi":"10.1190/gem2019-034.1","DOIUrl":"https://doi.org/10.1190/gem2019-034.1","url":null,"abstract":"","PeriodicalId":422414,"journal":{"name":"International Workshop on Gravity, Electrical & Magnetic Methods and Their Applications, Xi'an, China, 19–22 May 2019","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115224764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
F. Sousa, A. Silva, Catarina Labouré Bemfica Toledo, T. Aisengart, Julia M. S. Sampaio
{"title":"Inversion of Magnetic Data applied to the characterization of the IOCG prospect in Aurora, Ceará State - NE / Brazil","authors":"F. Sousa, A. Silva, Catarina Labouré Bemfica Toledo, T. Aisengart, Julia M. S. Sampaio","doi":"10.1190/gem2019-048.1","DOIUrl":"https://doi.org/10.1190/gem2019-048.1","url":null,"abstract":"","PeriodicalId":422414,"journal":{"name":"International Workshop on Gravity, Electrical & Magnetic Methods and Their Applications, Xi'an, China, 19–22 May 2019","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117290033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zuzhi Hu, Liu Yunxiang, Zhanxiang He, Xuejun Liu, Juan Liu, Sun Weibin
{"title":"Nonlinear constrained joint inversion of magnetotelluric and gravity data","authors":"Zuzhi Hu, Liu Yunxiang, Zhanxiang He, Xuejun Liu, Juan Liu, Sun Weibin","doi":"10.1190/gem2019-055.1","DOIUrl":"https://doi.org/10.1190/gem2019-055.1","url":null,"abstract":"","PeriodicalId":422414,"journal":{"name":"International Workshop on Gravity, Electrical & Magnetic Methods and Their Applications, Xi'an, China, 19–22 May 2019","volume":"519 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123125387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Shijing Zheng, Xiaohong Meng, Jun Wang, Zhaoxi Chen
{"title":"Potential field data discrete smooth interpolation using conjugate gradient","authors":"Shijing Zheng, Xiaohong Meng, Jun Wang, Zhaoxi Chen","doi":"10.1190/gem2019-022.1","DOIUrl":"https://doi.org/10.1190/gem2019-022.1","url":null,"abstract":"","PeriodicalId":422414,"journal":{"name":"International Workshop on Gravity, Electrical & Magnetic Methods and Their Applications, Xi'an, China, 19–22 May 2019","volume":"27 16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122756658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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