scholarly journals Thickness of the oceanic crust, the lithosphere, and the mantle transition zone in the vicinity of the Tristan da Cunha hot spot estimated from ocean-bottom and ocean-island seismometer receiver functions

2017 ◽  
Vol 716 ◽  
pp. 33-51 ◽  
Author(s):  
Wolfram H. Geissler ◽  
Wilfried Jokat ◽  
Marion Jegen ◽  
Kiyoshi Baba
Keyword(s):  
Transition Zone ◽  
Oceanic Crust ◽  
Hot Spot ◽  
Receiver Functions ◽  
Ocean Bottom ◽  
Mantle Transition Zone ◽  
Ocean Island ◽  
Tristan Da Cunha

scholarly journals Sulfide enrichment at an oceanic crust-mantle transition zone: Kane Megamullion (23°N, MAR)

2018 ◽  
Vol 230 ◽  
pp. 155-189 ◽  
Author(s):  
Jakub Ciazela ◽  
Juergen Koepke ◽  
Henry J.B. Dick ◽  
Roman Botcharnikov ◽  
Andrzej Muszynski ◽  
...  
Keyword(s):  
Transition Zone ◽  
Oceanic Crust ◽  
Mantle Transition Zone

Seismic images of the mantle transition zone beneath Northeast China and the Sino-Korean craton from P-wave receiver functions

2016 ◽  
Vol 675 ◽  
pp. 159-167 ◽  
Author(s):  
Ruiqing Zhang ◽  
Zhanyong Gao ◽  
Qingju Wu ◽  
Zhenxing Xie ◽  
Guangcheng Zhang
Keyword(s):  
Transition Zone ◽  
Northeast China ◽  
Receiver Functions ◽  
P Wave ◽  
Mantle Transition Zone ◽  
Seismic Images

scholarly journals Mapping the mantle transition zone beneath Hawaii from Ps receiver functions: Evidence for a hot plume and cold mantle downwellings

2017 ◽  
Vol 474 ◽  
pp. 226-236 ◽  
Author(s):  
Matthew R. Agius ◽  
Catherine A. Rychert ◽  
Nicholas Harmon ◽  
Gabi Laske
Keyword(s):  
Transition Zone ◽  
Receiver Functions ◽  
Mantle Transition Zone

Alpine mantle transition zone imaged by receiver functions

2009 ◽  
Vol 278 (3-4) ◽  
pp. 163-174 ◽  
Author(s):  
Denis Lombardi ◽  
Jochen Braunmiller ◽  
Edi Kissling ◽  
Domenico Giardini
Keyword(s):  
Transition Zone ◽  
Receiver Functions ◽  
Mantle Transition Zone

Subduction of the Indian slab into the mantle transition zone revealed by receiver functions

2017 ◽  
Vol 702 ◽  
pp. 61-69 ◽  
Author(s):  
Yaohui Duan ◽  
Xiaobo Tian ◽  
Xiaofeng Liang ◽  
Wei Li ◽  
Chenglong Wu ◽  
...  
Keyword(s):  
Transition Zone ◽  
Receiver Functions ◽  
Mantle Transition Zone

scholarly journals Seismic structure of the lithosphere and upper mantle beneath the ocean islands near mid-oceanic ridges

Solid Earth ◽  
2014 ◽  
Vol 5 (1) ◽  
pp. 327-337 ◽  
Author(s):  
C. Haldar ◽  
P. Kumar ◽  
M. Ravi Kumar
Keyword(s):  
Transition Zone ◽  
Upper Mantle ◽  
Hot Spot ◽  
Quality Data ◽  
Moho Depth ◽  
Seismic Structure ◽  
Low Velocity ◽  
Mantle Transition Zone ◽  
Lithospheric Thickness ◽  
Ocean Islands

Abstract. Deciphering the seismic character of the young lithosphere near mid-oceanic ridges (MORs) is a challenging endeavor. In this study, we determine the seismic structure of the oceanic plate near the MORs using the P-to-S conversions isolated from quality data recorded at five broadband seismological stations situated on ocean islands in their vicinity. Estimates of the crustal and lithospheric thickness values from waveform inversion of the P-receiver function stacks at individual stations reveal that the Moho depth varies between ~ 10 ± 1 km and ~ 20 ± 1 km with the depths of the lithosphere–asthenosphere boundary (LAB) varying between ~ 40 ± 4 and ~ 65 ± 7 km. We found evidence for an additional low-velocity layer below the expected LAB depths at stations on Ascension, São Jorge and Easter islands. The layer probably relates to the presence of a hot spot corresponding to a magma chamber. Further, thinning of the upper mantle transition zone suggests a hotter mantle transition zone due to the possible presence of plumes in the mantle beneath the stations.

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