Lithologic control of frictional strength variations in subduction zone sediment inputs
نویسندگان
چکیده
منابع مشابه
Frictional and hydrologic properties of a major splay fault system, Nankai subduction zone
[1] We report on laboratory experiments examining the frictional and hydrologic properties of fault gouge and wall rock along a borehole transect that crosses a major out-of-sequence thrust splay fault within the Nankai accretionary complex. At 25 MPa effective normal stress, the fault zone material is frictionally weak (m 0.44) and exhibits low permeability after shearing (k < 5.5 10 20 m). Fa...
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The composition of continental subduction-zone fluids varies dramatically from dilute aqueous solutions at subsolidus conditions to hydrous silicate melts at supersolidus conditions, with variable concentrations of fluid-mobile incompatible trace elements. At ultrahigh-pressure (UHP) metamorphic conditions, supercritical fluids may occur with variable compositions. The water component of these ...
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ژورنال
عنوان ژورنال: Geosphere
سال: 2018
ISSN: 1553-040X
DOI: 10.1130/ges01546.1