Results 11 to 20 of about 159,743 (252)

Stagnation and Tearing of the Subducting Northwest Pacific Slab [PDF]

Geology, 2022
Despite numerous observational and geodynamic modeling studies, the presence of the northwest Pacific slab tear and its influence on mantle dynamics remain controversial.
Yu, Youqiang, Gao, Stephen S., Sun, Muchen, Liu, Kelly H.   +3 more
core   +4 more sources

Kinematics of slab tear faults during subduction segementation and implications for Italian magmatism [PDF]

Tectonics, 2007
Tectonic activity in convergent plate boundaries commonly involves backward migration (rollback) of narrow subducting slabs and segmentation of subduction zones through slab tearing.
Lucente, F. P., Gasparon, M., Meghan S. Miller, Angelo Peccerillo, Lucente, Francesco P., Gideon Rosenbaum, Gasparon, Massimo, Rosenbaum, Gideon, Peccerillo, Angelo, Rosenbaum, G., Massimo Gasparon, Peccerillo, A., Francesco P. Lucente, Miller, Meghan S., Miller, M. S.   +14 more
core   +7 more sources

Slab tear and tensional fault systems in the Sunda–Andaman Benioff zone: implications on tectonics and potential seismic hazard

Geomatics, Natural Hazards & Risk, 2016
Transverse slab tear faults and longitudinal trench parallel extensional faults present on the top part of Benioff zone in Sunda–Andaman arc between latitude 6°–15°N and longitude 90°–98°E are marked by seismotectonic analysis using contemporary data ...
Basab Mukhopadhyay, Sujit Dasgupta, Pralay Mukherjee   +2 more
doaj   +2 more sources

Surface and mantle records reveal an ancient slab tear beneath Gondwana. [PDF]

Sci Rep, 2019
AbstractVertical slab-tearing has been widely reported in modern convergent settings profoundly influencing subduction and mantle dynamics. However, evaluating a similar impact in ancient convergent settings, where oceanic plates have been subducted and the geological record is limited, remains challenging.
Gianni GM, Navarrete C, Spagnotto S.
europepmc   +5 more sources

Slab tearing and segmented subduction termination driven by transform tectonics. [PDF]

Sci Adv
Subduction may terminate when a mid-ocean ridge approaches a trench, introducing buoyant lithosphere that resists subduction, leading to slab detachment and plate boundary reconfiguration. Yet, the spatial and temporal dynamics of slab tearing remain enigmatic due to a lack of modern examples.
Shuck B, Boston B, Carbotte SM, Han S, Bécel A, Miller NC, Canales JP, Hutchinson J, Merrill R, Beeson J, Gurun P, Littel G, Nedimović MR, Savard G, Tobin H.   +14 more
europepmc   +3 more sources

Slab Horizontal Subduction and Slab Tearing Beneath East Asia [PDF]

Geophysical Research Letters, 2019
AbstractThe present‐day architecture of subducted slabs in the mantle as inferred from seismic tomography is a record of plate tectonics through geological time. The unusually large slab that lies nearly horizontally above the 660‐km mantle discontinuity beneath East Asia is presumably from subduction of the Pacific plate.
Pengfei Ma, Shaofeng Liu, Michael Gurnis, Bo Zhang   +3 more
openaire   +2 more sources

Slab tears and intermediate‐depth seismicity [PDF]

Geophysical Research Letters, 2013
Active tectonic regions where plate boundaries transition from subduction to strike slip can take several forms, such as triple junctions, acute, and obtuse corners. Well‐documented slab tears that are associated with high rates of intermediate‐depth seismicity are considered here: Gibraltar arc, the southern and northern ends of the Lesser Antilles ...
Meighan, Hallie E., ten Brink, Uri S., Pulliam, Jay   +2 more
openaire   +2 more sources

Slab length and slab tearing control asymmetric exhumation of the Calabrian Arc [PDF]

Earth-Science Reviews
Slab dynamics play a fundamental role in shaping landscapes through subduction, tearing, and rollback. The Calabrian Arc, situated along the convergent margin of the Eurasian and African plates, offers a natural laboratory to investigate the interplay between slab rollback, geometry, and tearing.
Villamizar-Escalante N., von Hagke C., Muto F., Caracciolo L., Dremel F., Friedrichs B., Robl J., Gallen S. F.   +7 more
openaire   +4 more sources

Effects of line tying on resistive tearing instability in slab geometry [PDF]

Physics of Plasmas, 2009
The effects of line tying on resistive tearing instability in slab geometry are studied within the framework of reduced magnetohydrodynamics [B. B. Kadomtsev and O. P. Pogutse, Sov. Phys. JETP 38, 283 (1974); H. R. Strauss, Phys. Fluids 19, 134 (1976)]. It is found that line tying has a stabilizing effect. The tearing mode is stabilized when the system
Huang, Yi-Min, Zweibel, Ellen G.
openaire   +2 more sources

Slab pull, slab weakening, and their relation to deep intra-slab seismicity [PDF]

, 2005
Subduction zone seismicity is highly variable. Great earthquakes occur at few subduction zones around the world, with significant variation in size and frequency of deep events. Interactions between overriding and subducting plates and slab pull strength
Lithgow‐bertelloni, Carolina, Carolina Lithgow-bertelloni, Bilek, Susan L., Bilek, SL, Conrad, CP, Susan L. Bilek, Clinton P. Conrad, Lithgow-Bertelloni, C, Conrad, Clinton P.   +8 more
core   +1 more source