The Monviso ophiolitic Massif (Western Alps), a section through a serpentinite subduction channel
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چکیده
منابع مشابه
Prograde P–T evolution of a lawsonite eclogite from the Monviso metaophiolite (Western Alps): dehydration and redox reactions during subduction of oceanic FeTi-oxide gabbro
Lawsonite eclogites represent fossil records of processes occurring during subduction of cold and fast-subducting slabs, and provide the opportunity to investigate the thermal and metamorphic evolution of palaeosubduction zones. Occurrences of lawsonite eclogites are rare because lawsonite is often replaced during exhumation. We report here, for the first time, the occurrence of a lawsonite ecl...
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[1] We studied the back azimuth dependence of Ps converted phases at GSN station COR (Corvallis, Oregon) using broadband P receiver functions computed from 602 teleseismic earthquakes. The amplitudes and polarities of the transverse Ps phases are largely two-lobed, which indicates anisotropy with a tilted symmetry axis. A double-peaked Ps conversion at 4.5–6.5 s delay has the moveout of a dippi...
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The production of hydrogen and methane by geochemical reactions associated with the serpentinization of ultramafic rocks can potentially support subsurface microbial ecosystems independent of the photosynthetic biosphere. Methanogenic and methanotrophic microorganisms are abundant in marine hydrothermal systems heavily influenced by serpentinization, but evidence for methane-cycling archaea and...
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ژورنال
عنوان ژورنال: Journal of the Virtual Explorer
سال: 2004
ISSN: 1441-8142
DOI: 10.3809/jvirtex.2004.00099