Crustal structure and mantle transition zone thickness beneath a hydrothermal vent at the ultra-slow spreading Southwest Indian Ridge (49°39′E): a supplementary study based on passive seismic receiver functions

2016 ◽  
Vol 38 (1-2) ◽  
pp. 39-46 ◽  
Author(s):  
Aiguo Ruan ◽  
Hao Hu ◽  
Jiabiao Li ◽  
Xiongwei Niu ◽  
Xiaodong Wei ◽  
...  
Keyword(s):  
Transition Zone ◽  
Crustal Structure ◽  
Hydrothermal Vent ◽  
Receiver Functions ◽  
Southwest Indian Ridge ◽  
Mantle Transition Zone ◽  
Seismic Receiver ◽  
Passive Seismic ◽  
Slow Spreading ◽  
Indian Ridge

scholarly journals Crustal Structure Along Sunda-Banda Arc Transition Zone from Teleseismic Receiver Functions

2016 ◽  
Vol 64 (6) ◽  
pp. 2020-2049 ◽  
Author(s):  
Syuhada Syuhada ◽  
Nugroho Dwi Hananto ◽  
Chalid I. Abdullah ◽  
Nanang T. Puspito ◽  
Titi Anggono ◽  
...  
Keyword(s):  
Transition Zone ◽  
Crustal Structure ◽  
Receiver Functions ◽  
Banda Arc

Ocean Subduction Dynamics in the Alps

Elements ◽  
2021 ◽  
Vol 17 (1) ◽  
pp. 9-16
Author(s):  
Philippe Agard ◽  
Mark R. Handy
Keyword(s):  
Transition Zone ◽  
Continental Margin ◽  
North Atlantic ◽  
Subduction Zones ◽  
Mantle Transition Zone ◽  
Continental Subduction ◽  
The Alps ◽  
Slow Spreading ◽  
Selective Preservation

The Alps preserve abundant oceanic blueschists and eclogites that exemplify the selective preservation of fragments of relatively short-lived, small, slow-spreading North Atlantic–type ocean basins whose subducting slabs reach down to the Mantle Transition Zone at most. Whereas no subducted fragments were returned during the first half of the subduction history, those exhumed afterwards experienced conditions typical of mature subduction zones worldwide. Sedimentary-dominated units were under-plated intermittently, mostly at ~30–40 km depth. Some mafic–ultramafic-dominated units formed close to the continent were subducted to ~80 km and offscraped from the slab only a few million years before continental subduction. Spatiotemporal contrasts in burial and preservation of the fragments reveal how along-strike segmentation of the continental margin affects ocean subduction dynamics.

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