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Identification of active faults and tectonic features through heat flow distribution in the Nankai Trough, Japan, based on high-resolution velocity-estimated bottom-simulating reflector depths
Estimates of heat flow can contribute to our understanding of geological structures in plate convergent zones that produce great earthquakes. We applied automated velocity analysis to obtain the accurate seismic profiles needed for precise heat flow estimates using six new seismic profiles acquired...
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| Published in: | Earth, planets, and space planets, and space, 2023-12, Vol.75 (1), p.147-16, Article 147 |
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| creator | Takenouchi, Shuto Tsuji, Takeshi Shiraishi, Kazuya Nakamura, Yasuyuki Kodaira, Shuichi Fujie, Gou Mukumoto, Kota |
| description | Estimates of heat flow can contribute to our understanding of geological structures in plate convergent zones that produce great earthquakes. We applied automated velocity analysis to obtain the accurate seismic profiles needed for precise heat flow estimates using six new seismic profiles acquired during R/V
Kaimei
KM18-10 voyage in 2018. We calculated heat flow values in the accretionary wedge of the Nankai Trough off the Kii Peninsula, Japan, from the positions of widespread bottom-simulating reflectors (BSRs) in seismic reflection profiles. Calculated conductive heat flow values from the depth of the BSR agree with previous studies where a regional trend is observed from ~ 50 mW/m
2
to |
| doi_str_mv | 10.1186/s40623-023-01890-9 |
| format | article |
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Kaimei
KM18-10 voyage in 2018. We calculated heat flow values in the accretionary wedge of the Nankai Trough off the Kii Peninsula, Japan, from the positions of widespread bottom-simulating reflectors (BSRs) in seismic reflection profiles. Calculated conductive heat flow values from the depth of the BSR agree with previous studies where a regional trend is observed from ~ 50 mW/m
2
to < 40 mW/m
2
60 km landward from the deformation front. This trend is caused by thickening of accretionary sediments and the subduction of the Philippines Sea plate. Segments of profiles are marked by anomalous high heat flow values. Such anomalies represent alterations of the shallow crustal thermal structure caused either by a combination of topographic affects, surface erosion of the seafloor, or by fluid flow that transports heat by advection. We interpret heat flow anomalies (~ 100 mW/m
2
) as indicators of active faulting, which correspond to low seismic velocity zones along faults. Our results also showed relatively high heat flow at the landward end of several survey lines close to the Kii Peninsula, which we interpret to the possible presence of plutonic rocks that underlie the Kii Peninsula and extend offshore and may be the cause of geothermal springs, steep geothermal gradients, and high heat flow.
Graphical abstract</description><identifier>ISSN: 1880-5981</identifier><identifier>ISSN: 1343-8832</identifier><identifier>EISSN: 1880-5981</identifier><identifier>DOI: 10.1186/s40623-023-01890-9</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>4. Seismology ; Active faults ; Advection ; Anomalies ; Automated velocity analysis ; Bottom-simulating reflector (BSR) ; Earth and Environmental Science ; Earth Sciences ; Earthquakes ; Environmental aspects ; Estimates ; Fault detection ; Fault lines ; Faults (Geology) ; Flow distribution ; Flow estimation ; Fluid flow ; Geological faults ; Geological structures ; Geology ; Geophysics/Geodesy ; Heat flow ; Heat transfer ; Heat transmission ; Japan ; Mathematical analysis ; Ocean floor ; Plates (tectonics) ; Plutonic rock ; Reflectors ; Sediments ; Sediments (Geology) ; Seismic activity ; Seismic analysis ; Seismic reflection data ; Seismic reflection method ; Seismic surveys ; Seismic waves ; Seismology ; Subduction (geology) ; Subduction zones (Geology) ; Tectonics ; Tectonics (Geology) ; Velocity</subject><ispartof>Earth, planets, and space, 2023-12, Vol.75 (1), p.147-16, Article 147</ispartof><rights>The Author(s) 2023</rights><rights>COPYRIGHT 2023 Springer</rights><rights>The Author(s) 2023. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c453t-87337b82dfed89e67b2898105894947f8c5d23b6c22ef7edb69f6ec5f8b3438a3</cites><orcidid>0000-0003-0951-4596 ; 0000-0003-1656-249X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.proquest.com/docview/2868490777/fulltextPDF?pq-origsite=primo$$EPDF$$P50$$Gproquest$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.proquest.com/docview/2868490777?pq-origsite=primo$$EHTML$$P50$$Gproquest$$Hfree_for_read</linktohtml><link.rule.ids>314,776,780,25731,27901,27902,36989,44566,74869</link.rule.ids></links><search><creatorcontrib>Takenouchi, Shuto</creatorcontrib><creatorcontrib>Tsuji, Takeshi</creatorcontrib><creatorcontrib>Shiraishi, Kazuya</creatorcontrib><creatorcontrib>Nakamura, Yasuyuki</creatorcontrib><creatorcontrib>Kodaira, Shuichi</creatorcontrib><creatorcontrib>Fujie, Gou</creatorcontrib><creatorcontrib>Mukumoto, Kota</creatorcontrib><title>Identification of active faults and tectonic features through heat flow distribution in the Nankai Trough, Japan, based on high-resolution velocity-estimated bottom-simulating reflector depths</title><title>Earth, planets, and space</title><addtitle>Earth Planets Space</addtitle><description>Estimates of heat flow can contribute to our understanding of geological structures in plate convergent zones that produce great earthquakes. We applied automated velocity analysis to obtain the accurate seismic profiles needed for precise heat flow estimates using six new seismic profiles acquired during R/V
Kaimei
KM18-10 voyage in 2018. We calculated heat flow values in the accretionary wedge of the Nankai Trough off the Kii Peninsula, Japan, from the positions of widespread bottom-simulating reflectors (BSRs) in seismic reflection profiles. Calculated conductive heat flow values from the depth of the BSR agree with previous studies where a regional trend is observed from ~ 50 mW/m
2
to < 40 mW/m
2
60 km landward from the deformation front. This trend is caused by thickening of accretionary sediments and the subduction of the Philippines Sea plate. Segments of profiles are marked by anomalous high heat flow values. Such anomalies represent alterations of the shallow crustal thermal structure caused either by a combination of topographic affects, surface erosion of the seafloor, or by fluid flow that transports heat by advection. We interpret heat flow anomalies (~ 100 mW/m
2
) as indicators of active faulting, which correspond to low seismic velocity zones along faults. Our results also showed relatively high heat flow at the landward end of several survey lines close to the Kii Peninsula, which we interpret to the possible presence of plutonic rocks that underlie the Kii Peninsula and extend offshore and may be the cause of geothermal springs, steep geothermal gradients, and high heat flow.
Graphical abstract</description><subject>4. Seismology</subject><subject>Active faults</subject><subject>Advection</subject><subject>Anomalies</subject><subject>Automated velocity analysis</subject><subject>Bottom-simulating reflector (BSR)</subject><subject>Earth and Environmental Science</subject><subject>Earth Sciences</subject><subject>Earthquakes</subject><subject>Environmental aspects</subject><subject>Estimates</subject><subject>Fault detection</subject><subject>Fault lines</subject><subject>Faults (Geology)</subject><subject>Flow distribution</subject><subject>Flow estimation</subject><subject>Fluid flow</subject><subject>Geological faults</subject><subject>Geological structures</subject><subject>Geology</subject><subject>Geophysics/Geodesy</subject><subject>Heat flow</subject><subject>Heat transfer</subject><subject>Heat transmission</subject><subject>Japan</subject><subject>Mathematical analysis</subject><subject>Ocean floor</subject><subject>Plates (tectonics)</subject><subject>Plutonic rock</subject><subject>Reflectors</subject><subject>Sediments</subject><subject>Sediments (Geology)</subject><subject>Seismic activity</subject><subject>Seismic analysis</subject><subject>Seismic reflection data</subject><subject>Seismic reflection method</subject><subject>Seismic surveys</subject><subject>Seismic waves</subject><subject>Seismology</subject><subject>Subduction (geology)</subject><subject>Subduction zones (Geology)</subject><subject>Tectonics</subject><subject>Tectonics (Geology)</subject><subject>Velocity</subject><issn>1880-5981</issn><issn>1343-8832</issn><issn>1880-5981</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><sourceid>PIMPY</sourceid><sourceid>DOA</sourceid><recordid>eNp9kt2K1TAUhYsoOI6-gFcBr4TpmDZpmlwOgz9HBgUdr0Oa7LQZe5Jjko7O2_lopqeizo2ETcLmW4u1w66q5w0-bxrOXiWKWUtqvFbDBa7Fg-qk4RzXneDNw3_ej6snKd1gTDBl5KT6uTPgs7NOq-yCR8EipbO7BWTVMueElDcog87BO40sqLxESChPMSzjhKbSQHYO35FxKUc3LEcX5wsB6IPyX5VD10f2DL1XB-XP0KASGFSoyY1TXdzCvKluYQ7a5bsaUnZ7lQs1hJzDvk5uv8wloB9RBDuvcSIycMhTelo9smpO8Oz3fVp9efP6-vJdffXx7e7y4qrWtCO55j0h_cBbY8FwAawfWl5-A3dcUEF7y3VnWjIw3bZgezADE5aB7iwfCCVckdNqt_maoG7kIZaA8U4G5eSxEeIoVcxOzyBp02EmAGtGLVWU8UGwHreiM8RSrVavF5vXIYZvS5lW3oQl-hJftpxxKnDf94U636hRFVPnbchR6XIM7J0OHqwr_YueMUZ529AieHlPUJgMP_KolpTk7vOn-2y7sTqGlMqn_hmpwXJdKbmtlMRrrSslRRGRTZQK7EeIf3P_R_ULTsHSFw</recordid><startdate>20231201</startdate><enddate>20231201</enddate><creator>Takenouchi, Shuto</creator><creator>Tsuji, Takeshi</creator><creator>Shiraishi, Kazuya</creator><creator>Nakamura, Yasuyuki</creator><creator>Kodaira, Shuichi</creator><creator>Fujie, Gou</creator><creator>Mukumoto, Kota</creator><general>Springer Berlin Heidelberg</general><general>Springer</general><general>Springer Nature B.V</general><general>SpringerOpen</general><scope>C6C</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>ISR</scope><scope>7TG</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>H8D</scope><scope>HCIFZ</scope><scope>KL.</scope><scope>L7M</scope><scope>P5Z</scope><scope>P62</scope><scope>PCBAR</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>DOA</scope><orcidid>https://orcid.org/0000-0003-0951-4596</orcidid><orcidid>https://orcid.org/0000-0003-1656-249X</orcidid></search><sort><creationdate>20231201</creationdate><title>Identification of active faults and tectonic features through heat flow distribution in the Nankai Trough, Japan, based on high-resolution velocity-estimated bottom-simulating reflector depths</title><author>Takenouchi, Shuto ; Tsuji, Takeshi ; Shiraishi, Kazuya ; Nakamura, Yasuyuki ; Kodaira, Shuichi ; Fujie, Gou ; Mukumoto, Kota</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c453t-87337b82dfed89e67b2898105894947f8c5d23b6c22ef7edb69f6ec5f8b3438a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>4. Seismology</topic><topic>Active faults</topic><topic>Advection</topic><topic>Anomalies</topic><topic>Automated velocity analysis</topic><topic>Bottom-simulating reflector (BSR)</topic><topic>Earth and Environmental Science</topic><topic>Earth Sciences</topic><topic>Earthquakes</topic><topic>Environmental aspects</topic><topic>Estimates</topic><topic>Fault detection</topic><topic>Fault lines</topic><topic>Faults (Geology)</topic><topic>Flow distribution</topic><topic>Flow estimation</topic><topic>Fluid flow</topic><topic>Geological faults</topic><topic>Geological structures</topic><topic>Geology</topic><topic>Geophysics/Geodesy</topic><topic>Heat flow</topic><topic>Heat transfer</topic><topic>Heat transmission</topic><topic>Japan</topic><topic>Mathematical analysis</topic><topic>Ocean floor</topic><topic>Plates (tectonics)</topic><topic>Plutonic rock</topic><topic>Reflectors</topic><topic>Sediments</topic><topic>Sediments (Geology)</topic><topic>Seismic activity</topic><topic>Seismic analysis</topic><topic>Seismic reflection data</topic><topic>Seismic reflection method</topic><topic>Seismic surveys</topic><topic>Seismic waves</topic><topic>Seismology</topic><topic>Subduction (geology)</topic><topic>Subduction zones (Geology)</topic><topic>Tectonics</topic><topic>Tectonics (Geology)</topic><topic>Velocity</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Takenouchi, Shuto</creatorcontrib><creatorcontrib>Tsuji, Takeshi</creatorcontrib><creatorcontrib>Shiraishi, Kazuya</creatorcontrib><creatorcontrib>Nakamura, Yasuyuki</creatorcontrib><creatorcontrib>Kodaira, Shuichi</creatorcontrib><creatorcontrib>Fujie, Gou</creatorcontrib><creatorcontrib>Mukumoto, Kota</creatorcontrib><collection>SpringerOpen(OpenAccess)</collection><collection>CrossRef</collection><collection>Gale In Context: Science</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Central (Alumni)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central</collection><collection>Advanced Technologies & Aerospace Collection</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>Natural Science Collection</collection><collection>Earth, Atmospheric & Aquatic Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central</collection><collection>Aerospace Database</collection><collection>SciTech Premium Collection</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Advanced Technologies & Aerospace Database</collection><collection>ProQuest Advanced Technologies & Aerospace Collection</collection><collection>Earth, Atmospheric & Aquatic Science Database</collection><collection>Publicly Available Content (ProQuest)</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>DOAJ Directory of Open Access Journals</collection><jtitle>Earth, planets, and space</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Takenouchi, Shuto</au><au>Tsuji, Takeshi</au><au>Shiraishi, Kazuya</au><au>Nakamura, Yasuyuki</au><au>Kodaira, Shuichi</au><au>Fujie, Gou</au><au>Mukumoto, Kota</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Identification of active faults and tectonic features through heat flow distribution in the Nankai Trough, Japan, based on high-resolution velocity-estimated bottom-simulating reflector depths</atitle><jtitle>Earth, planets, and space</jtitle><stitle>Earth Planets Space</stitle><date>2023-12-01</date><risdate>2023</risdate><volume>75</volume><issue>1</issue><spage>147</spage><epage>16</epage><pages>147-16</pages><artnum>147</artnum><issn>1880-5981</issn><issn>1343-8832</issn><eissn>1880-5981</eissn><abstract>Estimates of heat flow can contribute to our understanding of geological structures in plate convergent zones that produce great earthquakes. We applied automated velocity analysis to obtain the accurate seismic profiles needed for precise heat flow estimates using six new seismic profiles acquired during R/V
Kaimei
KM18-10 voyage in 2018. We calculated heat flow values in the accretionary wedge of the Nankai Trough off the Kii Peninsula, Japan, from the positions of widespread bottom-simulating reflectors (BSRs) in seismic reflection profiles. Calculated conductive heat flow values from the depth of the BSR agree with previous studies where a regional trend is observed from ~ 50 mW/m
2
to < 40 mW/m
2
60 km landward from the deformation front. This trend is caused by thickening of accretionary sediments and the subduction of the Philippines Sea plate. Segments of profiles are marked by anomalous high heat flow values. Such anomalies represent alterations of the shallow crustal thermal structure caused either by a combination of topographic affects, surface erosion of the seafloor, or by fluid flow that transports heat by advection. We interpret heat flow anomalies (~ 100 mW/m
2
) as indicators of active faulting, which correspond to low seismic velocity zones along faults. Our results also showed relatively high heat flow at the landward end of several survey lines close to the Kii Peninsula, which we interpret to the possible presence of plutonic rocks that underlie the Kii Peninsula and extend offshore and may be the cause of geothermal springs, steep geothermal gradients, and high heat flow.
Graphical abstract</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><doi>10.1186/s40623-023-01890-9</doi><tpages>16</tpages><orcidid>https://orcid.org/0000-0003-0951-4596</orcidid><orcidid>https://orcid.org/0000-0003-1656-249X</orcidid><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1880-5981 |
| ispartof | Earth, planets, and space, 2023-12, Vol.75 (1), p.147-16, Article 147 |
| issn | 1880-5981 1343-8832 1880-5981 |
| language | eng |
| recordid | cdi_doaj_primary_oai_doaj_org_article_415069e0c64f4a468b9670295d3f4caa |
| source | Springer Nature - SpringerLink Journals - Fully Open Access ; Publicly Available Content (ProQuest) |
| subjects | 4. Seismology Active faults Advection Anomalies Automated velocity analysis Bottom-simulating reflector (BSR) Earth and Environmental Science Earth Sciences Earthquakes Environmental aspects Estimates Fault detection Fault lines Faults (Geology) Flow distribution Flow estimation Fluid flow Geological faults Geological structures Geology Geophysics/Geodesy Heat flow Heat transfer Heat transmission Japan Mathematical analysis Ocean floor Plates (tectonics) Plutonic rock Reflectors Sediments Sediments (Geology) Seismic activity Seismic analysis Seismic reflection data Seismic reflection method Seismic surveys Seismic waves Seismology Subduction (geology) Subduction zones (Geology) Tectonics Tectonics (Geology) Velocity |
| title | Identification of active faults and tectonic features through heat flow distribution in the Nankai Trough, Japan, based on high-resolution velocity-estimated bottom-simulating reflector depths |
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