| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
Marine Transform Faults and Fracture Zones: A Joint Perspective Integrating Seismicity, Fluid Flow and Life
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| Autores: |
Hensen, Christian
Duarte, Joao C.
Vannucchi, Paola
Mazzini, Adriano
Lever, Mark A.
Terrinha, Pedro
Géli, Louis
Henry, Pierre
Villinger, Heinrich
Morgan, Jason
Schmidt, Mark
Gutscher, Marc-andre
Bartolome, Rafael
Tomonaga, Yama
Polonia, Alina
Gràcia, Eulàlia
Tinivella, Umberta
Lupi, Matteo
Çağatay, M. Namık
Elvert, Marcus
Sakellariou, Dimitris
Matias, Luis
Kipfer, Rolf
Karageorgis, Aristomenis P.
Ruffine, Livio
Liebetrau, Volker
Pierre, Catherine
Schmidt, Christopher
Batista, Luis
Gasperini, Luca
Burwicz, Ewa
Neres, Marta
Nuzzo, Marianne
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| Data: |
2019-03
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| Ano: |
2019
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| Palavras-chave: |
Transform faults
Fractures zones
Coupling of seismicity and fluid flow
Microbial life
Heat flow
Fluid geochemistry
Seafloor observation systems
Seismic precursors
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| Resumo: |
Marine transform faults and associated fracture zones (MTFFZs) cover vast stretches of the ocean floor, where they play a key role in plate tectonics, accommodating the lateral movement of tectonic plates and allowing connections between ridges and trenches. Together with the continental counterparts of MTFFZs, these structures also pose a risk to human societies as they can generate high magnitude earthquakes and trigger tsunamis. Historical examples are the Sumatra-Wharton Basin Earthquake in 2012 (M8.6) and the Atlantic Gloria Fault Earthquake in 1941 (M8.4). Earthquakes at MTFFZs furthermore open and sustain pathways for fluid flow triggering reactions with the host rocks that may permanently change the rheological properties of the oceanic lithosphere. In fact, they may act as conduits mediating vertical fluid flow and leading to elemental exchanges between Earth’s mantle and overlying sediments. Chemicals transported upward in MTFFZs include energy substrates, such as H2 and volatile hydrocarbons, which then sustain chemosynthetic, microbial ecosystems at and below the seafloor. Moreover, up- or downwelling of fluids within the complex system of fractures and seismogenic faults along MTFFZs could modify earthquake cycles and/or serve as “detectors” for changes in the stress state during interseismic phases. Despite their likely global importance, the large areas where transform faults and fracture zones occur are still underexplored, as are the coupling mechanisms between seismic activity, fluid flow, and life. This manuscript provides an interdisciplinary review and synthesis of scientific progress at or related to MTFFZs and specifies approaches and strategies to deepen the understanding of processes that trigger, maintain, and control fluid flow at MTFFZs.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
https://archimer.ifremer.fr/doc/00489/60085/63422.pdf
DOI:10.3389/feart.2019.00039
https://archimer.ifremer.fr/doc/00489/60085/
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| Editor: |
Frontiers Media SA
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| Relação: |
info:eu-repo/grantAgreement/EC/FP7/308417/EU//MARSITE
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| Formato: |
application/pdf
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| Fonte: |
Frontiers In Earth Science (2296-6463) (Frontiers Media SA), 2019-03 , Vol. 7 , N. 39 , P. 29p.
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| Direitos: |
info:eu-repo/semantics/openAccess
restricted use
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