Laboratory earthquakes triggered during eclogitization of lawsonite-bearing blueschist

Laboratory earthquakes triggered during eclogitization of lawsonite-bearing blueschist

The origin of intermediate-depth seismicity has been debated for decades. A substantial fraction of these events occurs within the upper plane of Wadati–Benioff double seismic zones believed to represent subducting oceanic crust. We deformed natural lawsonite-rich blueschist samples under eclogite-f...

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Veröffentlicht in:Earth and planetary science letters 2017-02, Vol.459 (C), p.320-331
Hauptverfasser: Incel, Sarah, Hilairet, Nadège, Labrousse, Loïc, John, Timm, Deldicque, Damien, Ferrand, Thomas, Wang, Yanbin, Renner, Jörg, Morales, Luiz, Schubnel, Alexandre
Format: Artikel
Sprache:eng
Schlagworte:
dehydration embrittlement
Earth Sciences
eclogitization
GEOSCIENCES
intermediate-depth seismicity
lawsonite–blueschist
Sciences of the Universe
shear heating
transformational faulting
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Zusammenfassung:The origin of intermediate-depth seismicity has been debated for decades. A substantial fraction of these events occurs within the upper plane of Wadati–Benioff double seismic zones believed to represent subducting oceanic crust. We deformed natural lawsonite-rich blueschist samples under eclogite-facies conditions (1.5
ISSN:0012-821X
1385-013X
DOI:10.1016/j.epsl.2016.11.047