scholarly journals Upper mantle shear wave velocity structure of the east Anatolian-Caucasus region||Upper mantle shear wave velocity structure of the east Anatolian-Caucasus region

2014 ◽  
Author(s):  
Gleb Anatolyevich Skobeltsyn
Keyword(s):  
Shear Wave ◽  
Wave Velocity ◽  
Shear Wave Velocity ◽  
Upper Mantle ◽  
Velocity Structure ◽  
Caucasus Region ◽  
Shear Wave Velocity Structure

Shear-wave velocity structure of the crust and upper mantle beneath the Kola Peninsula

1996 ◽  
Vol 23 (23) ◽  
pp. 3389-3392 ◽  
Author(s):  
I. G. Dricker ◽  
S. W. Roecker ◽  
G. L. Kosarev ◽  
L. P. Vinnik
Keyword(s):  
Kola Peninsula ◽  
Shear Wave ◽  
Wave Velocity ◽  
Shear Wave Velocity ◽  
Upper Mantle ◽  
Velocity Structure ◽  
Crust And Upper Mantle ◽  
Shear Wave Velocity Structure

Shear Wave Velocity Structure of the Crust and Upper Mantle in Western China and Its Adjacent Area

2007 ◽  
Vol 50 (1) ◽  
pp. 192-209 ◽  
Author(s):  
Guo-Ming XU ◽  
Hua-Jian YAO ◽  
Liang-Bao ZHU ◽  
Yu-Song SHEN
Keyword(s):  
Shear Wave ◽  
Wave Velocity ◽  
Shear Wave Velocity ◽  
Upper Mantle ◽  
Velocity Structure ◽  
Western China ◽  
Adjacent Area ◽  
Crust And Upper Mantle ◽  
Shear Wave Velocity Structure

Upper mantle shear-wave velocity structure in the Japan region

1974 ◽  
Vol 64 (2) ◽  
pp. 355-374
Author(s):  
K. L. Kaila ◽  
V. G. Krishna ◽  
Hari Narain
Keyword(s):  
Shear Wave ◽  
Wave Velocity ◽  
Shear Wave Velocity ◽  
Upper Mantle ◽  
Inflection Point ◽  
Velocity Structure ◽  
Epicentral Distance ◽  
S Wave ◽  
Transition Depth ◽  
Shear Wave Velocity Structure

abstract The upper mantle shear-wave velocity structure in the Japan region has been determined from S travel times of 101 earthquakes with focal depths varying from 40 to 600 km, using a new analytical method given by Kaila (1969). In southwestern Japan, the S velocity obtained as 4.35 km/sec at a 40-km depth remains almost constant to a depth of about 170 km. The shear velocity in northeastern Japan increases linearly from 4.42 km/sec at a depth of 45 km to 4.62 km/sec at a depth of 145-km. For central Japan, the S velocity determined as 4.41 km/sec at a 40-km depth increases linearly to 4.55 km/sec at a 170-km depth, followed by a slight decrease in the velocity gradient, with velocity still increasing linearly to 4.68 km/sec at a depth of 345 km. At this transition depth, there is a first-order velocity discontinuity, the velocity increasing from 4.68 to 4.92 km/sec. Below this depth, velocity again increases linearly from 4.92 to 5.04 km/sec at a depth of 600 km. The shear velocities at depths between 440 to 640 km in Japan are found to be extremely low in comparison to those of Jeffreys (1939), Gutenberg (1959), and Arnold (1967). These low S velocities can explain satisfactorily the late S arrivals from shallow earthquakes between Δ = 20° to 30° as observed in the Japanese region. Graphs have been drawn to show the variation with depth of Δ*, the epicentral distance to the inflection point, Δ1, Δ2, (Δ2 − Δ1), ptrue =∂T/∂Δ, and αS = (T − pΔ) at the inflection point as obtained from the S-wave travel-time analysis.

scholarly journals The shear-wave velocity structure in the upper mantle beneath Eurasia

2008 ◽  
Vol 174 (3) ◽  
pp. 978-992 ◽  
Author(s):  
B. Kustowski ◽  
G. Ekström ◽  
A. M. Dziewoński
Keyword(s):  
Shear Wave ◽  
Wave Velocity ◽  
Shear Wave Velocity ◽  
Upper Mantle ◽  
Velocity Structure ◽  
Shear Wave Velocity Structure

scholarly journals Shear‐wave velocity structure of the southern African upper mantle: Implications for craton structure and plateau uplift

2021 ◽  
Author(s):  
A. L. White‐Gaynor ◽  
A. A. Nyblade ◽  
R.J. Durrheim ◽  
R. Raveloson ◽  
Meijde van der ◽  
...  
Keyword(s):  
Shear Wave ◽  
Wave Velocity ◽  
Shear Wave Velocity ◽  
Upper Mantle ◽  
Velocity Structure ◽  
Plateau Uplift ◽  
Shear Wave Velocity Structure

scholarly journals Upper mantle shear wave velocity structure beneath northern Victoria Land, Antarctica: Volcanism and uplift in the northern Transantarctic Mountains

2016 ◽  
Vol 449 ◽  
pp. 48-60 ◽  
Author(s):  
Jordan H. Graw ◽  
Aubreya N. Adams ◽  
Samantha E. Hansen ◽  
Douglas A. Wiens ◽  
Lauren Hackworth ◽  
...  
Keyword(s):  
Shear Wave ◽  
Wave Velocity ◽  
Shear Wave Velocity ◽  
Upper Mantle ◽  
Velocity Structure ◽  
Victoria Land ◽  
Transantarctic Mountains ◽  
Shear Wave Velocity Structure

scholarly journals Crustal and Upper Mantle Shear Wave Velocity Structure of Botswana: The 3 April 2017 Central Botswana Earthquake Linked to the East African Rift System

2020 ◽  
Vol 47 (4) ◽  
Author(s):  
Islam Fadel ◽  
Hanneke Paulssen ◽  
Mark van der Meijde ◽  
Motsamai Kwadiba ◽  
Onkgopotse Ntibinyane ◽  
...  
Keyword(s):  
Shear Wave ◽  
Wave Velocity ◽  
Shear Wave Velocity ◽  
Upper Mantle ◽  
Velocity Structure ◽  
Rift System ◽  
East African Rift System ◽  
East African ◽  
African Rift ◽  
Shear Wave Velocity Structure
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