Zobrazeno 1 - 10
of 12
pro vyhledávání: '"J. Kopf"'
Publikováno v:
Geophysical Research Letters. 44:8749-8756
Slow slip phenomena, including earthquake afterslip and discrete slow slip events (SSE), may have a major effect on megathrust earthquakes in subduction zones, however the nature of this effect is still incompletely understood. Here, we report that i
Publikováno v:
Tectonophysics. 665:177-185
Previous work suggests that in subduction zones, the onset of large earthquake nucleation at depths > ~ 5–10 km is likely driven by a combination of factors associated with the process of lithification. At these depths, lithification processes affe
Autor:
Achim J Kopf, Matt J. Ikari
Publikováno v:
Science Advances
Experimental shearing at plate rate speeds reveals slow slip events and earthquake potential on weak, shallow faults.
The near-surface areas of major faults commonly contain weak, phyllosilicate minerals, which, based on laboratory friction meas
The near-surface areas of major faults commonly contain weak, phyllosilicate minerals, which, based on laboratory friction meas
Autor:
Achim J Kopf
Publikováno v:
Tectonophysics. 608:958-969
The location of the seaward tip of a subduction thrust controls material transfer at convergent plate margins, and hence global mass balances. At approximately half of those margins, the material of the subducting plate is completely underthrust so t
Publikováno v:
Geochemistry, Geophysics, Geosystems. 14:2716-2730
[1] The mechanical behavior of the plate boundary fault zone is of paramount importance in subduction zones, because it controls megathrust earthquake nucleation and propagation as well as the structural style of the forearc. In the Nankai area along
Publikováno v:
Journal of the Geological Society. 167:539-553
Sedimentology, petrography and the provenance of Holocene sediments from the Southern Chile Trench (36–47°S) were investigated in an integrated approach combining description of a collection of gravity cores, measurements of physical properties, q
Autor:
Andre Hüpers, Achim J Kopf
Publikováno v:
Earth and Planetary Science Letters. 286:324-332
The Nankai Trough convergent margin has been the focus of many multi-methodological surveys including half a dozen scientific deep-sea drilling expeditions. The boreholes focused on the smectite-dominated area off Cape Ashizuri and the thermally alte
Autor:
Achim J Kopf, Kevin M. Brown
Publikováno v:
Marine Geology. 202:193-210
The Nankai and Barbados forearcs have low-stress subduction thrusts. The sediments entering the subduction zone, and namely the material in the decollement zones, have been well characterized by numerous deep-sea drilling legs and studies of the reco
Publikováno v:
Earth and Planetary Science Letters. 214:589-603
We show that both fault mineralogy and regional excess fluid pressure contribute to low resolved shear stresses on the Nankai subduction plate boundary off southwest Japan. Ring and direct shear tests indicate that saturated clay minerals in the faul
Publikováno v:
Tectonophysics. 329:157-170
Multichannel seismic profiles from cruise 5 of the R/V Akademik Nikolaj Strakhov provide the first deep seismic reflection images and extensive coverage south and east of Cyprus. Five NW–SE-trending seismic lines cross an area of active continental