Results 201 to 210 of about 141,652 (249)

Continental margin tectonics: Submarine accretionary prisms

Reviews of Geophysics, 1987
Submarine accretionary prisms are sites of incipient mountain building where sediments and rocks of the deep ocean are uplifted, deformed, and ultimately transformed to continental crust. Accretionary prisms develop at sites of lithospheric convergence, that is, subduction zones.
J. Casey Moore, Eli A. Silver
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Plumbing accretionary prisms: effects of permeability variations

Philosophical Transactions of the Royal Society of London. Series A: Physical and Engineering Sciences, 1991
Abstract Fault zones focus fluid expulsion in the muddy northern Barbados Ridge accretionary prism with fault-parallel permeabilities about 1000 times greater than intergranular permeabilities in the adjacent sediment. In the Oregon prism the low bedding-perpendicular permeability (due to mudstones) inhibits intergranular dewatering ...
Kevin M. Brown, J. Casey Moore, Frank Horath, Guy Cochrane, Mary McKay, Greg Moore   +5 more
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Seismicity of the forearc marginal wedge (accretionary prism)

Journal of Geophysical Research: Solid Earth, 1982
Three different types of seismic data have been examined for seismic events occurring within the zone called the accreted wedge or forearc marginal wedge that underlies the inner trench wall of some arcs. These types of data are (1) teleseismically recorded earthquakes that have been reported in the literature as occurring in major arc‐trench regions ...
Allen T. Chen, Cliff Frohlich, Gary V. Latham   +2 more
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Is the Southern Uplands of Scotland really an accretionary prism?

Geology, 1986
We argue that there is little which demands the accretionary prism model for the widespread Silurian rocks of the Southern Uplands of Scotland (and Ireland). With new data from Ireland, we reinterpret these rocks as the turbidite fill of a successor basin that formed after the subduction of Iapetus oceanic crust finally stopped at the end of the ...
F. C. Murphy, D.H.W. Hutton
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Kinematic models of dewatering accretionary prisms

Journal of Geophysical Research: Solid Earth, 1994
Steady state two‐dimensional analytical solutions are derived for sediment velocity and rate of fluid expulsion in a thickening accretionary prism with smooth upper and lower surfaces. Two different kinematic assumptions lead to two similar sets of solutions. In one case, the sediment flow lines are assumed to diverge uniformly landward.
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A geodynamic model of the Southern Apennines accretionary prism

Terra Nova, 1996
ABSTRACTThe Apennines comprise a Neogen—Quaternary accretionary prism that shows several anomalies with respect to classic alpine‐type mountain belts, namely (i) low elevation, (ii) a shallow new Moho below the core of the belt, (iii) high heat flow in the internal parts, (iv) mainly sedimentary cover involved in the prism, (v) a deep foredeep and (vi)
C. Doglioni, P. Harabaglia, G. Martinelli, F. Mongelli, G. Zito   +4 more
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Strain decoupling across the decollement of the Barbados accretionary prism [PDF]

, 1996
The interrelation between deformation styles and behavior of fluids in accretionary prisms is under debate, particularly the possibility that overpressuring within the basal decollement may enable mechanical decoupling of the prism from the subducting
Brueckmann, Warner, Peacock, S., Yin, H., Labaume, Pierre, Henry, P., Steiger, T., Underwood, M., Ashi, J., Housen, Bernard A., Maltman, Alex J., Felice, F., Zwart, G., Shipley, T., Meyer, A., Goldberg, D., Kastner, M., Moore, J. C., Xu, Y., Laier, T., Zheng, Y., Fisher, A., Moore, G., Tobin, Harold J., Jurado, M.-J., Rabaute, A., Leitch, Evan C., Ogawa, Y., Blum, P.   +27 more
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A preliminary study on geomorphological characteristics and genetic mechanism of pockmarks in the Makran accretionary prism, northern Arabian Sea

Geo-Marine Letters, 2021
Zhen Zhang, Xiguang Deng, H. Yao, Miao Yu, Haifeng Wang, G. He, Bin Liu, Tingting Wu, Sanober Kahkashan, S. W. Haider, Naimatullah Sohoo, N. Kalhoro   +11 more
semanticscholar   +1 more source

Hydrogeological modeling of porous flow in the Oregon accretionary prism

Geology, 1989
Venting of pore fluid was recently reported near the front of the Oregon accretionary prism and was directly measured at one of the venting sites during Alvin dives. In this study, the authors model the flow of pore fluid in the Oregon accretionaly prism.
Yaolin Shi, Chi-Yuen Wang, Win-tsuang Hwang, Roland von Huene   +3 more
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Geochemistry of mud volcano fluids in the Taiwan accretionary prism

Applied Geochemistry, 2004
Abstract Taiwan is located at the collision boundary between the Philippine Sea Plate and the Asian Continental Plate and is one of the most active orogenic belts in the world. Fluids sampled from 9 sub-aerial mud volcanoes distributed along two major geological structures in southwestern Taiwan, the Chishan fault and the Gutingkeng anticline, were ...
Chen-Feng You, Joris.M. Gieskes, Typhoon Lee, Tzen-Fu Yui, Hsin-Wen Chen   +4 more
openaire   +1 more source