Geochemical variation of volcanic rocks from the South China Sea and neighboring land: Implication for magmatic process and mantle structure

2015 ◽  
Vol 34 (12) ◽  
pp. 112-124 ◽  
Author(s):  
Shuying Yang ◽  
Nianqiao Fang
2020 ◽  
Author(s):  
V. Corchete

Figure S1: Geographical distribution of the 1-sigma errors arisen in computation of the S-velocities shown in Figure 3. The interval between isolines is 0.01 km/s; Figure S2. Resolution maps of the inversion process performed to calculate the S-velocities shown in Figure 3, plotted from 0 (not resolved) to 1 (perfect resolution). The interval between isolines is 0.1.


2011 ◽  
Vol 57 (24) ◽  
pp. 3150-3164 ◽  
Author(s):  
YiGang Xu ◽  
JingXian Wei ◽  
HuaNing Qiu ◽  
HuiHuang Zhang ◽  
XiaoLong Huang

2020 ◽  
Vol 133 (1-2) ◽  
pp. 177-184
Author(s):  
V. Corchete

Abstract A three-dimensional (3-D) S-velocity model for the crust and upper mantle beneath the South China Sea and Indonesia is presented, determined by means of Rayleigh wave analysis, in the depth range from 0 km to 400 km. The crustal and lithospheric mantle structure of this study area was previously investigated using several methods and databases. Due to their low resolution, a 3-D structure for this area has not been previously determined. The determination of such a 3-D S-velocity model is the goal of the present study. The most conspicuous features of the crust and upper mantle structure include the S-velocity difference between the Java Sea and the Banda Sea regions and a transitional boundary between these two regions. This model confirms the principal structural features revealed in previous studies: an oceanic crust structure in the center of the South China Sea, crustal thinning from the northern continental margin of the South China Sea to this oceanic crust, and the existence of a high-velocity layer in the lower crust of the northern continental margin. This study concludes that the north of the South China Sea is a nonvolcanic-type continental margin, solving the open question of whether the continental margin of the northern South China Sea is volcanic or nonvolcanic. A new map of the asthenosphere’s base is also presented.


2020 ◽  
Author(s):  
V. Corchete

Figure S1: Geographical distribution of the 1-sigma errors arisen in computation of the S-velocities shown in Figure 3. The interval between isolines is 0.01 km/s; Figure S2. Resolution maps of the inversion process performed to calculate the S-velocities shown in Figure 3, plotted from 0 (not resolved) to 1 (perfect resolution). The interval between isolines is 0.1.


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