Exploring subsurface fluid flow and active dewatering along the oceanic plate boundary between Africa and Eurasia (Gloria Fault)
R/V Meteor cruise M162 was conducted as a systematic continuation of ongoing work dedicated to understand if and howfluid flow through crust and sedimentscontinues along transform-type plate boundaries and fracture zones away from mid-ocean ridges and continental margins. Central target was the Glor...
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ftunivevora:oai:dspace.uevora.pt:10174/31665 2023-09-05T13:21:54+02:00 Exploring subsurface fluid flow and active dewatering along the oceanic plate boundary between Africa and Eurasia (Gloria Fault) Hensen, Christian Adao, Helena Batista, L Belosa, L Bodenbinder, A Cherednichenko, S Domeyer, B Duarte, J Glombitza, C Kaul, N Koppe, M Li, J Liebetrau, V Müller, T Nogueira, P Nuzzo, M Petersen, A Schmidt, M Schmidt, T Sroczynska, K Stelzner, M Terrinha, P Warnken, N Weber, U 2020 http://hdl.handle.net/10174/31665 https://doi.org/10.48433/cr_m162 por por doi:10.48433/cr_m162 http://hdl.handle.net/10174/31665 nd openAccess report 2020 ftunivevora https://doi.org/10.48433/cr_m162 2023-08-14T17:48:58Z R/V Meteor cruise M162 was conducted as a systematic continuation of ongoing work dedicated to understand if and howfluid flow through crust and sedimentscontinues along transform-type plate boundaries and fracture zones away from mid-ocean ridges and continental margins. Central target was the Gloria Fault in the central Northeast Atlantic. Previous findings along the eastern continuation of the Gloria Fault revealed fault-controlled fluid advection and mud volcanism along strike-slip faults in the Horseshoe Abyssal Plain and the Gulf of Cadiz, where fluid geochemistry revealed the admixture of fluids from deeply buried oceanic crust and oldest sediments on top of it. TheGloria Fault itselfis an old, reactivated, and seismically active oceanic fracture zone. During M162 a systematic survey along the main trace of the Gloria Fault between the Azores Plateau and the Madeira-Tore Rise was carried out, including sub-bottom profiler surveys, heat flow transects, gravity corer sampling, as well as video-guided CTD and multicorer deployments. In accordance to recently recorded seismic activity along the fault, there isevidence for tectonic motion both in sub-bottom profiler records and sediment cores. Heat flow measurements revealed values significantly elevated above the background in many places, predominantly along the main fault trace and other active faults.Ina number of placesfluid geochemistry revealed enhanced diagenetic processes in the sediments, implying the potential relation to upward-directed fluid flow. In summary, cruise M162revealed the first complementary data set on heat flow and fluid geochemistry along an oceanic fault zone, which will further our understanding on themes like the alteration of oceanic lithosphere and crust-ocean element exchange. Report Northeast Atlantic Repositório Científico da Universidade de Évora |
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Open Polar |
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Repositório Científico da Universidade de Évora |
op_collection_id |
ftunivevora |
language |
Portuguese |
description |
R/V Meteor cruise M162 was conducted as a systematic continuation of ongoing work dedicated to understand if and howfluid flow through crust and sedimentscontinues along transform-type plate boundaries and fracture zones away from mid-ocean ridges and continental margins. Central target was the Gloria Fault in the central Northeast Atlantic. Previous findings along the eastern continuation of the Gloria Fault revealed fault-controlled fluid advection and mud volcanism along strike-slip faults in the Horseshoe Abyssal Plain and the Gulf of Cadiz, where fluid geochemistry revealed the admixture of fluids from deeply buried oceanic crust and oldest sediments on top of it. TheGloria Fault itselfis an old, reactivated, and seismically active oceanic fracture zone. During M162 a systematic survey along the main trace of the Gloria Fault between the Azores Plateau and the Madeira-Tore Rise was carried out, including sub-bottom profiler surveys, heat flow transects, gravity corer sampling, as well as video-guided CTD and multicorer deployments. In accordance to recently recorded seismic activity along the fault, there isevidence for tectonic motion both in sub-bottom profiler records and sediment cores. Heat flow measurements revealed values significantly elevated above the background in many places, predominantly along the main fault trace and other active faults.Ina number of placesfluid geochemistry revealed enhanced diagenetic processes in the sediments, implying the potential relation to upward-directed fluid flow. In summary, cruise M162revealed the first complementary data set on heat flow and fluid geochemistry along an oceanic fault zone, which will further our understanding on themes like the alteration of oceanic lithosphere and crust-ocean element exchange. |
format |
Report |
author |
Hensen, Christian Adao, Helena Batista, L Belosa, L Bodenbinder, A Cherednichenko, S Domeyer, B Duarte, J Glombitza, C Kaul, N Koppe, M Li, J Liebetrau, V Müller, T Nogueira, P Nuzzo, M Petersen, A Schmidt, M Schmidt, T Sroczynska, K Stelzner, M Terrinha, P Warnken, N Weber, U |
spellingShingle |
Hensen, Christian Adao, Helena Batista, L Belosa, L Bodenbinder, A Cherednichenko, S Domeyer, B Duarte, J Glombitza, C Kaul, N Koppe, M Li, J Liebetrau, V Müller, T Nogueira, P Nuzzo, M Petersen, A Schmidt, M Schmidt, T Sroczynska, K Stelzner, M Terrinha, P Warnken, N Weber, U Exploring subsurface fluid flow and active dewatering along the oceanic plate boundary between Africa and Eurasia (Gloria Fault) |
author_facet |
Hensen, Christian Adao, Helena Batista, L Belosa, L Bodenbinder, A Cherednichenko, S Domeyer, B Duarte, J Glombitza, C Kaul, N Koppe, M Li, J Liebetrau, V Müller, T Nogueira, P Nuzzo, M Petersen, A Schmidt, M Schmidt, T Sroczynska, K Stelzner, M Terrinha, P Warnken, N Weber, U |
author_sort |
Hensen, Christian |
title |
Exploring subsurface fluid flow and active dewatering along the oceanic plate boundary between Africa and Eurasia (Gloria Fault) |
title_short |
Exploring subsurface fluid flow and active dewatering along the oceanic plate boundary between Africa and Eurasia (Gloria Fault) |
title_full |
Exploring subsurface fluid flow and active dewatering along the oceanic plate boundary between Africa and Eurasia (Gloria Fault) |
title_fullStr |
Exploring subsurface fluid flow and active dewatering along the oceanic plate boundary between Africa and Eurasia (Gloria Fault) |
title_full_unstemmed |
Exploring subsurface fluid flow and active dewatering along the oceanic plate boundary between Africa and Eurasia (Gloria Fault) |
title_sort |
exploring subsurface fluid flow and active dewatering along the oceanic plate boundary between africa and eurasia (gloria fault) |
publishDate |
2020 |
url |
http://hdl.handle.net/10174/31665 https://doi.org/10.48433/cr_m162 |
genre |
Northeast Atlantic |
genre_facet |
Northeast Atlantic |
op_relation |
doi:10.48433/cr_m162 http://hdl.handle.net/10174/31665 nd |
op_rights |
openAccess |
op_doi |
https://doi.org/10.48433/cr_m162 |
_version_ |
1776202460177629184 |