A Fossil Paleozoic Subduction-Dominated Trench-Arc-Basin System Revealed by Airborne Magnetic-Gravity Imaging in West Junggar, NW China
A Carboniferous trench-arc-basin system related to oceanic slab subduction has been thoroughly imaged by various geophysical probing approaches and proposed for the formation of West Junggar, Northwest China, located in the southwest of the Central Asian Orogenic Belt. However, debate on the origin...
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creator | Zheng, Qifang Xu, Xi Zhang, Wan Zheng, Yuzhou Liu, Yinghui Kuang, Xingtao Zhou, Daoqing Yu, Xuezhong Wang, Baodi |
description | A Carboniferous trench-arc-basin system related to oceanic slab subduction has been thoroughly imaged by various geophysical probing approaches and proposed for the formation of West Junggar, Northwest China, located in the southwest of the Central Asian Orogenic Belt. However, debate on the origin of West Junggar still continues. Here, we present an integrated aeronautic magnetic-gravity observation to further identify the trench-arc-basin system and constrain the subduction mode. By deploying an integrated aerial magnetic-gravity survey consisting of 66,000 survey-line kilometers from August 3, 2015 to April 22, 2016, we determine the magnetic and gravitational anomaly across the study region by using geophysical potential-field processing. Our results reveal curial crust-scale variations in magnetic and gravitational structures beneath West Junggar and that a prominent Bouguer gravity high is located between the Darbut and Karamay-Urho faults, likely corresponding to a trapped oceanic slab. Notably, the Tacheng Basin is characterized by high-frequency magnetic signal and gravity highs, as well as the Carboniferous rifting-related sedimentary cover, which could be reasonably interpreted to be a back-arc basin. Integrated with these comprehensive geological and geophysical observations across West Junggar, the previous model of West Junggar trench-arc-basin system related to a fossil intra-oceanic subduction during the Late Paleozoic is further renewed. |
doi_str_mv | 10.3389/feart.2021.760305 |
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However, debate on the origin of West Junggar still continues. Here, we present an integrated aeronautic magnetic-gravity observation to further identify the trench-arc-basin system and constrain the subduction mode. By deploying an integrated aerial magnetic-gravity survey consisting of 66,000 survey-line kilometers from August 3, 2015 to April 22, 2016, we determine the magnetic and gravitational anomaly across the study region by using geophysical potential-field processing. Our results reveal curial crust-scale variations in magnetic and gravitational structures beneath West Junggar and that a prominent Bouguer gravity high is located between the Darbut and Karamay-Urho faults, likely corresponding to a trapped oceanic slab. Notably, the Tacheng Basin is characterized by high-frequency magnetic signal and gravity highs, as well as the Carboniferous rifting-related sedimentary cover, which could be reasonably interpreted to be a back-arc basin. 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However, debate on the origin of West Junggar still continues. Here, we present an integrated aeronautic magnetic-gravity observation to further identify the trench-arc-basin system and constrain the subduction mode. By deploying an integrated aerial magnetic-gravity survey consisting of 66,000 survey-line kilometers from August 3, 2015 to April 22, 2016, we determine the magnetic and gravitational anomaly across the study region by using geophysical potential-field processing. Our results reveal curial crust-scale variations in magnetic and gravitational structures beneath West Junggar and that a prominent Bouguer gravity high is located between the Darbut and Karamay-Urho faults, likely corresponding to a trapped oceanic slab. Notably, the Tacheng Basin is characterized by high-frequency magnetic signal and gravity highs, as well as the Carboniferous rifting-related sedimentary cover, which could be reasonably interpreted to be a back-arc basin. Integrated with these comprehensive geological and geophysical observations across West Junggar, the previous model of West Junggar trench-arc-basin system related to a fossil intra-oceanic subduction during the Late Paleozoic is further renewed.</description><subject>Geology</subject><subject>geophysical potential field processing</subject><subject>Geosciences, Multidisciplinary</subject><subject>Late Paleozoic</subject><subject>magnetic and gravity structure</subject><subject>Physical Sciences</subject><subject>Science & Technology</subject><subject>subduction-dominated trench-arc-basin system</subject><subject>Tacheng Basin</subject><subject>West Junggar basin</subject><issn>2296-6463</issn><issn>2296-6463</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>HGBXW</sourceid><sourceid>DOA</sourceid><recordid>eNqNkctuEzEUhkcIJKrSB2DnPUzwbcYzyzDQNqjQihZ1aflyPHWV2Mh2itIX4LVxGlSxZOUj-3y_pf9rmrcELxgbxg8OVCoLiilZiB4z3L1ojigd-7bnPXv5z_y6Ocn5HmNMGO04Ho-a30t0GnP2a3Sl1hAfozfoeqvt1hQfQ_spbnxQBSy6SRDMXbtMpv2osg_oepcLbNB3eIBKWqR3aOmTjikA-qrmAMWb9iypB192aLVRsw8zqtwt5IK-bMM8q_QefbtF01394k3zyql1hpO_53Hz4_TzzXTeXlyerablRWsYIaUdHCNCM8OBONFrC3YgloxM9M6MmIwac2u54h3p6is1gvGBurqhTafsqNlxszrk2qju5c_kNyrtZFRePl3ENMvapTdrkEKMClNqh84xTrHWZmBCUMGoE5zqrmaRQ5ZJtcIE7jmPYLkXI5_EyL0YeRBTmeHA_AIdXTa-tgrPXDUjmKB46PFe0uSL2muY4jaUir77f5T9AQktotk</recordid><startdate>20211213</startdate><enddate>20211213</enddate><creator>Zheng, Qifang</creator><creator>Xu, Xi</creator><creator>Zhang, Wan</creator><creator>Zheng, Yuzhou</creator><creator>Liu, Yinghui</creator><creator>Kuang, Xingtao</creator><creator>Zhou, Daoqing</creator><creator>Yu, Xuezhong</creator><creator>Wang, Baodi</creator><general>Frontiers Media Sa</general><general>Frontiers Media S.A</general><scope>BLEPL</scope><scope>DTL</scope><scope>HGBXW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>DOA</scope></search><sort><creationdate>20211213</creationdate><title>A Fossil Paleozoic Subduction-Dominated Trench-Arc-Basin System Revealed by Airborne Magnetic-Gravity Imaging in West Junggar, NW China</title><author>Zheng, Qifang ; Xu, Xi ; Zhang, Wan ; Zheng, Yuzhou ; Liu, Yinghui ; Kuang, Xingtao ; Zhou, Daoqing ; Yu, Xuezhong ; Wang, Baodi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c311t-8f317b3c4e1f76bded81d19376fc9019b04dd4a45156bd2c73482fd19bc5ad9b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Geology</topic><topic>geophysical potential field processing</topic><topic>Geosciences, Multidisciplinary</topic><topic>Late Paleozoic</topic><topic>magnetic and gravity structure</topic><topic>Physical Sciences</topic><topic>Science & Technology</topic><topic>subduction-dominated trench-arc-basin system</topic><topic>Tacheng Basin</topic><topic>West Junggar basin</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zheng, Qifang</creatorcontrib><creatorcontrib>Xu, Xi</creatorcontrib><creatorcontrib>Zhang, Wan</creatorcontrib><creatorcontrib>Zheng, Yuzhou</creatorcontrib><creatorcontrib>Liu, Yinghui</creatorcontrib><creatorcontrib>Kuang, Xingtao</creatorcontrib><creatorcontrib>Zhou, Daoqing</creatorcontrib><creatorcontrib>Yu, Xuezhong</creatorcontrib><creatorcontrib>Wang, Baodi</creatorcontrib><collection>Web of Science Core Collection</collection><collection>Science Citation Index Expanded</collection><collection>Web of Science - Science Citation Index Expanded - 2021</collection><collection>CrossRef</collection><collection>DOAJ Directory of Open Access Journals</collection><jtitle>Frontiers in earth science (Lausanne)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zheng, Qifang</au><au>Xu, Xi</au><au>Zhang, Wan</au><au>Zheng, Yuzhou</au><au>Liu, Yinghui</au><au>Kuang, Xingtao</au><au>Zhou, Daoqing</au><au>Yu, Xuezhong</au><au>Wang, Baodi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A Fossil Paleozoic Subduction-Dominated Trench-Arc-Basin System Revealed by Airborne Magnetic-Gravity Imaging in West Junggar, NW China</atitle><jtitle>Frontiers in earth science (Lausanne)</jtitle><stitle>FRONT EARTH SC-SWITZ</stitle><date>2021-12-13</date><risdate>2021</risdate><volume>9</volume><artnum>760305</artnum><issn>2296-6463</issn><eissn>2296-6463</eissn><abstract>A Carboniferous trench-arc-basin system related to oceanic slab subduction has been thoroughly imaged by various geophysical probing approaches and proposed for the formation of West Junggar, Northwest China, located in the southwest of the Central Asian Orogenic Belt. However, debate on the origin of West Junggar still continues. Here, we present an integrated aeronautic magnetic-gravity observation to further identify the trench-arc-basin system and constrain the subduction mode. By deploying an integrated aerial magnetic-gravity survey consisting of 66,000 survey-line kilometers from August 3, 2015 to April 22, 2016, we determine the magnetic and gravitational anomaly across the study region by using geophysical potential-field processing. Our results reveal curial crust-scale variations in magnetic and gravitational structures beneath West Junggar and that a prominent Bouguer gravity high is located between the Darbut and Karamay-Urho faults, likely corresponding to a trapped oceanic slab. Notably, the Tacheng Basin is characterized by high-frequency magnetic signal and gravity highs, as well as the Carboniferous rifting-related sedimentary cover, which could be reasonably interpreted to be a back-arc basin. Integrated with these comprehensive geological and geophysical observations across West Junggar, the previous model of West Junggar trench-arc-basin system related to a fossil intra-oceanic subduction during the Late Paleozoic is further renewed.</abstract><cop>LAUSANNE</cop><pub>Frontiers Media Sa</pub><doi>10.3389/feart.2021.760305</doi><tpages>15</tpages><oa>free_for_read</oa></addata></record> |
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subjects | Geology geophysical potential field processing Geosciences, Multidisciplinary Late Paleozoic magnetic and gravity structure Physical Sciences Science & Technology subduction-dominated trench-arc-basin system Tacheng Basin West Junggar basin |
title | A Fossil Paleozoic Subduction-Dominated Trench-Arc-Basin System Revealed by Airborne Magnetic-Gravity Imaging in West Junggar, NW China |
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