The figure is a schematic diagram depicting a subduction zone. The subduction slab on the right enters the mantle with a varying temperature gradient while importing water in a downward motion.
Subduction slabs drive plate tectonics by pulling along the lithosphere to which they attach in a process known as slab pull and by inducing currents in the mantle via slab suction.[2] The slab affects the convection and evolution of the Earth's mantle due to the insertion of the hydrous oceanic lithosphere.[3] Dense oceanic lithosphere retreats into the Earth's mantle, while lightweight continental lithospheric material produces active continental margins and volcanic arcs, generating volcanism.[4] Recycling the subducted slab presents volcanism by flux melting from the mantle wedge.[5] The slab motion can cause dynamic uplift and subsidence of the Earth's surface, forming shallow seaways[2] and potentially rearranging drainage patterns.[6]
Geologic features of the subsurface can infer subducted slabs by seismic imaging.[7][8] Subduction slabs are dynamic; slab characteristics such as slab temperature evolution, flat-slab, deep-slab, and slab detachment can be expressed globally near subduction zones.[9] Temperature gradients of subducted slabs depend on the oceanic plate's time and thermal structures.[10] Slabs experiencing low angle (less than 30 degrees) subduction is considered flat-slab, primarily in southern China and the western United States.[11][12]Marianas Trench is an example of a deep slab, thereby creating the deepest trench in the world established by a steep slab angle.[13]Slab breakoff occurs during a collision between oceanic and continental lithosphere,[14] allowing for a slab tear; an example of slab breakoff occurs within the Himalayan subduction zone.[4]
See also
Slab window – Type of gap in a subducted oceanic plate
References
^Conrad, C. P. . Archived from the original on June 13, 2011. Retrieved 24 April 2011.
^ abMitrovica, J. X.; Beaumont, C.; Jarvis, G. T. (1989). "Tilting of continental interiors by the dynamical effects of subduction". Tectonics. 8 (5): 1079. Bibcode:1989Tecto...8.1079M. doi:10.1029/TC008i005p01079.
^Wada, Ikuko; Behn, Mark D.; Shaw, Alison M. (2012-11-01). "Effects of heterogeneous hydration in the incoming plate, slab rehydration, and mantle wedge hydration on slab-derived H2O flux in subduction zones". Earth and Planetary Science Letters. 353–354: 60–71. Bibcode:2012E&PSL.353...60W. doi:10.1016/j.epsl.2012.07.025. ISSN 0012-821X.
^ abFrisch, Wolfgang; Meschede, Martin; Blakey, Ronald (2011), "Subduction zones, island arcs and active continental margins", Plate Tectonics, Berlin, Heidelberg: Springer Berlin Heidelberg, pp. 91–122, doi:10.1007/978-3-540-76504-2_7, ISBN978-3-540-76503-5, retrieved 2021-12-10
^Iwamori, Hikaru (1998-07-01). "Transportation of H2O and melting in subduction zones". Earth and Planetary Science Letters. 160 (1): 65–80. Bibcode:1998E&PSL.160...65I. doi:10.1016/S0012-821X(98)00080-6. ISSN 0012-821X.
^ Shephard, G. E.; Müller, R. D.; Liu, L.; Gurnis, M. (2010). "Miocene drainage reversal of the Amazon River driven by plate–mantle interaction". Nature Geoscience. 3 (12): 870–75. Bibcode:2010NatGe...3..870S. CiteSeerX10.1.1.653.4596. doi:10.1038/ngeo1017.
^Rondenay, Stéphane; Abers, Geoffrey A.; van Keken, Peter E. (2008). "Seismic imaging of subduction zone metamorphism". Geology. 36 (4): 275. Bibcode:2008Geo....36..275R. doi:10.1130/G24112A.1. ISSN 0091-7613.
^Zhao, Dapeng; Ohtani, Eiji (2009-12-01). "Deep slab subduction and dehydration and their geodynamic consequences: Evidence from seismology and mineral physics". Gondwana Research. 16 (3): 401–413. Bibcode:2009GondR..16..401Z. doi:10.1016/j.gr.2009.01.005. ISSN 1342-937X.
^Holt, A. F.; Condit, C. B. (June 2021). "Slab Temperature Evolution Over the Lifetime of a Subduction Zone". Geochemistry, Geophysics, Geosystems. 22 (6). Bibcode:2021GGG....2209476H. doi:10.1029/2020GC009476. ISSN 1525-2027. S2CID 232378621.
^Schellart, Wouter Pieter (2020). "Control of Subduction Zone Age and Size on Flat Slab Subduction". Frontiers in Earth Science. 8: 26. Bibcode:2020FrEaS...8...26S. doi:10.3389/feart.2020.00026. ISSN 2296-6463.
^Liu, Xiaowen; Currie, Claire A. (2019). "Influence of Upper Plate Structure on Flat-Slab Depth: Numerical Modeling of Subduction Dynamics". Journal of Geophysical Research: Solid Earth. 124 (12): 13150–13167. Bibcode:2019JGRB..12413150L. doi:10.1029/2019JB018653. ISSN 2169-9356. S2CID 210254422.
^Gvirtzman, Zohar; Stern, Robert J. (April 2004). "Bathymetry of Mariana trench-arc system and formation of the Challenger Deep as a consequence of weak plate coupling". Tectonics. 23 (2): n/a. Bibcode:2004Tecto..23.2011G. doi:10.1029/2003tc001581. ISSN 0278-7407. S2CID 21354196.
^Huw Davies, J.; von Blanckenburg, Friedhelm (1995-01-01). "Slab breakoff: A model of lithosphere detachment and its test in the magmatism and deformation of collisional orogens". Earth and Planetary Science Letters. 129 (1): 85–102. Bibcode:1995E&PSL.129...85D. doi:10.1016/0012-821X(94)00237-S. ISSN 0012-821X.
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slab, geology, rock, layers, containing, fossils, counter, slab, geology, slab, significant, constituent, subduction, zones, figure, schematic, diagram, depicting, subduction, zone, subduction, slab, right, enters, mantle, with, varying, temperature, gradient,. For rock layers containing fossils see Counter slab In geology the slab is a significant constituent of subduction zones 1 The figure is a schematic diagram depicting a subduction zone The subduction slab on the right enters the mantle with a varying temperature gradient while importing water in a downward motion A model of the subducting Farallon Slab under North America Subduction slabs drive plate tectonics by pulling along the lithosphere to which they attach in a process known as slab pull and by inducing currents in the mantle via slab suction 2 The slab affects the convection and evolution of the Earth s mantle due to the insertion of the hydrous oceanic lithosphere 3 Dense oceanic lithosphere retreats into the Earth s mantle while lightweight continental lithospheric material produces active continental margins and volcanic arcs generating volcanism 4 Recycling the subducted slab presents volcanism by flux melting from the mantle wedge 5 The slab motion can cause dynamic uplift and subsidence of the Earth s surface forming shallow seaways 2 and potentially rearranging drainage patterns 6 Geologic features of the subsurface can infer subducted slabs by seismic imaging 7 8 Subduction slabs are dynamic slab characteristics such as slab temperature evolution flat slab deep slab and slab detachment can be expressed globally near subduction zones 9 Temperature gradients of subducted slabs depend on the oceanic plate s time and thermal structures 10 Slabs experiencing low angle less than 30 degrees subduction is considered flat slab primarily in southern China and the western United States 11 12 Marianas Trench is an example of a deep slab thereby creating the deepest trench in the world established by a steep slab angle 13 Slab breakoff occurs during a collision between oceanic and continental lithosphere 14 allowing for a slab tear an example of slab breakoff occurs within the Himalayan subduction zone 4 See also EditSlab window Type of gap in a subducted oceanic plateReferences Edit Conrad C P How Mantle Slabs Drive Plate Motions Archived from the original on June 13 2011 Retrieved 24 April 2011 a b Mitrovica J X Beaumont C Jarvis G T 1989 Tilting of continental interiors by the dynamical effects of subduction Tectonics 8 5 1079 Bibcode 1989Tecto 8 1079M doi 10 1029 TC008i005p01079 Wada Ikuko Behn Mark D Shaw Alison M 2012 11 01 Effects of heterogeneous hydration in the incoming plate slab rehydration and mantle wedge hydration on slab derived H2O flux in subduction zones Earth and Planetary Science Letters 353 354 60 71 Bibcode 2012E amp PSL 353 60W doi 10 1016 j epsl 2012 07 025 ISSN 0012 821X a b Frisch Wolfgang Meschede Martin Blakey Ronald 2011 Subduction zones island arcs and active continental margins Plate Tectonics Berlin Heidelberg Springer Berlin Heidelberg pp 91 122 doi 10 1007 978 3 540 76504 2 7 ISBN 978 3 540 76503 5 retrieved 2021 12 10 Iwamori Hikaru 1998 07 01 Transportation of H2O and melting in subduction zones Earth and Planetary Science Letters 160 1 65 80 Bibcode 1998E amp PSL 160 65I doi 10 1016 S0012 821X 98 00080 6 ISSN 0012 821X Shephard G E Muller R D Liu L Gurnis M 2010 Miocene drainage reversal of the Amazon River driven by plate mantle interaction Nature Geoscience 3 12 870 75 Bibcode 2010NatGe 3 870S CiteSeerX 10 1 1 653 4596 doi 10 1038 ngeo1017 Rondenay Stephane Abers Geoffrey A van Keken Peter E 2008 Seismic imaging of subduction zone metamorphism Geology 36 4 275 Bibcode 2008Geo 36 275R doi 10 1130 G24112A 1 ISSN 0091 7613 Zhao Dapeng Ohtani Eiji 2009 12 01 Deep slab subduction and dehydration and their geodynamic consequences Evidence from seismology and mineral physics Gondwana Research 16 3 401 413 Bibcode 2009GondR 16 401Z doi 10 1016 j gr 2009 01 005 ISSN 1342 937X Hu Jiashun Gurnis Michael April 2020 Subduction Duration and Slab Dip Geochemistry Geophysics Geosystems 21 4 Bibcode 2020GGG 2108862H doi 10 1029 2019GC008862 ISSN 1525 2027 S2CID 216305697 Holt A F Condit C B June 2021 Slab Temperature Evolution Over the Lifetime of a Subduction Zone Geochemistry Geophysics Geosystems 22 6 Bibcode 2021GGG 2209476H doi 10 1029 2020GC009476 ISSN 1525 2027 S2CID 232378621 Schellart Wouter Pieter 2020 Control of Subduction Zone Age and Size on Flat Slab Subduction Frontiers in Earth Science 8 26 Bibcode 2020FrEaS 8 26S doi 10 3389 feart 2020 00026 ISSN 2296 6463 Liu Xiaowen Currie Claire A 2019 Influence of Upper Plate Structure on Flat Slab Depth Numerical Modeling of Subduction Dynamics Journal of Geophysical Research Solid Earth 124 12 13150 13167 Bibcode 2019JGRB 12413150L doi 10 1029 2019JB018653 ISSN 2169 9356 S2CID 210254422 Gvirtzman Zohar Stern Robert J April 2004 Bathymetry of Mariana trench arc system and formation of the Challenger Deep as a consequence of weak plate coupling Tectonics 23 2 n a Bibcode 2004Tecto 23 2011G doi 10 1029 2003tc001581 ISSN 0278 7407 S2CID 21354196 Huw Davies J von Blanckenburg Friedhelm 1995 01 01 Slab breakoff A model of lithosphere detachment and its test in the magmatism and deformation of collisional orogens Earth and Planetary Science Letters 129 1 85 102 Bibcode 1995E amp PSL 129 85D doi 10 1016 0012 821X 94 00237 S ISSN 0012 821X This tectonics article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Slab geology amp oldid 1097453460, wikipedia, wiki, book, books, library,
