[PDF] Top 20 Seismic body wave attenuation in the upper mantle beneath the Australian continent
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Seismic body wave attenuation in the upper mantle beneath the Australian continent
... Q Models in the Upper Mantle on Global and Regional Scales 2.3.2 25 1-D Q Models in the Earth Early studies of Q models were based primarily on normal mode and surface wave data which id[r] ... See full document
207
Seismic attenuation beneath Kanto, Japan: evidence for high attenuation in the serpentinized subducting mantle
... model obtained in this study along latitude of 35.6 °N. Stations and earthquakes located in the gray band in (a) are shown by colored squares and gray circles, respectively. Black lines denote ray paths from the M3.9 ... See full document
11
S wave attenuation structure beneath the northern Izu–Bonin arc
... S-wave attenuation tomography of the northern Izu–Bonin arc to elucidate the seismic structure of the crust and uppermost ...mantle. Seismic wave attenuation in this arc ... See full document
13
POLENET/LAPNET teleseismic wave travel time tomography model of the upper mantle beneath northern Fennoscandia
... low seismic velocities in the central part of the network separates Norrbotten, Kola and Karelian cratons from each other and is spatially correlating with the northern part of the ...the upper man- tle ... See full document
15
Seismic structure of the lithosphere and upper mantle beneath the ocean islands near mid-oceanic ridges
... locations beneath the Pacific Ocean (Ga- herty, 1999; Tan and Helmberger, 2007; Kawakatsu, 2009; Kumar and Kawakatsu, 2011; Kumar et ...hampers body- wave observations from the oceanic data is the ... See full document
11
A new model of the upper mantle structure beneath the western rim of the East European Craton
... distribution beneath the western rim of the EEC (MP1-SUW model, Table 3) re- sulting from the forward ray-tracing modelling and fitting of the calculated traveltimes to the observed mantle arrivals ...deep ... See full document
13
Surface-wave imaging of the weakly-extended Malawi Rift from ambient-noise and teleseismic Rayleigh waves from onshore and lake-bottom seismometers
... source seismic, geochemical and magnetotelluric data across the Malawi Rift (Shillington et ...constrained seismic tomographic maps of surface wave phase velocity of the Malawi Rift with the aim of ... See full document
14
Seismic body wave attenuation tomography beneath the Australasian region
... the upper mantle are divided into 10 layers with layer thickness ranging from 35km to 100km in the uppermost zone and from 100km to 200km in the deeper mantle (Table ...lithosphere, upper ... See full document
172
Mapping the upper mantle discontinuities beneath China with teleseismic receiver functions
... teleseismic body waves recorded at stations of the Chinese Center of Digital Seismic Network to map the upper mantle discontinuities beneath continental ...model beneath each ... See full document
7
Shear wave splitting analysis of the upper mantle at the Niigata Kobe Tectonic Zone with the data of the Joint Seismic Observations at NKTZ
... shear wave splitting in this re- gion to another anisotropic zone, corresponding to a low velocity zone (Hirahara et ...1989), beneath the subduct- ing Philippine Sea slab in the mantle ...of ... See full document
9
Upper mantle imaging beneath the Japan Islands by Hi net tiltmeter recordings
... In the Japan subduction zone, the Pacific slab extends from the surface to around or below the 660, as suggested by a recent tomographic study (Fukao et al., 2001). Our RF image suggests that the oceanic Moho within the ... See full document
6
Evidence for partial melt in the crust beneath Mt Paektu (Changbaishan), Democratic People's Republic of Korea and China
... To investigate the lateral variations in the data, we performed a com- mon conversion point migration of the data. We used the method of Angus et al. ( 25 ) with slight modifications ( 26 ) to incorporate the H - k ... See full document
8
A seismic refraction and reflection study of continent ocean transition beneath the north Biscay margin
... DISCUSSION AND CONCLUSIONS The results from the seismic refraction study, multichannel seismic reflection profiles and gravity modelling have been combined in the true scale section acro[r] ... See full document
44
Evidence of magma activation beneath the Harrat Lunayyir basaltic field (Saudi Arabia) from attenuation tomography
... The attenuation tomographic inversion algorithm was gen- erally identical to the first iteration step of the LOTOS code (Koulakov, 2009), which was initially designed for travel time passive source ...the ... See full document
10
Seismic structure beneath the Gulf of Aqaba and adjacent areas based on the tomographic inversion of regional earthquake data
... expanded for the case of large areas. This algorithm ac- counts for the curvature of the Earth when computing the travel times of seismic rays. This is especially important for rays with long offsets displaying ... See full document
14
Adjoint tomography of the crust and upper mantle structure beneath the Kanto region using broadband seismograms
... shear wave speed at anomaly A was approximately 10% lower than the average speed beneath the Boso ...pressional wave speed ...the upper part of the subducting PHS plate ... See full document
20
High resolution receiver function imaging of the seismic velocity discontinuities in the crust and the uppermost mantle beneath southwest Japan
... the seismic velocity discontinuities in the crust and the uppermost man- tle beneath southwest Japan with RF ...imaging beneath the Japan islands has been already executed by Li et ...per ... See full document
6
The seismic signature of Upper‐Mantle Plumes: application to the Northern East African Rift
... Figure 8. (a, b) Input P- (a) and S-wave (b) velocity anomalies (%) along a vertical cross-section through the model N10 oriented such that the two plumes are positioned approximately under Afar and MER. The lo- ... See full document
36
Seismic tomography of the uppermost mantle beneath southwestern Japan: Seismological constraints on modelling subduction and magmatism for the Philippine Sea slab
... Fig. 13. Vertical cross sections of slowness perturbations ((a) P-wave and (b) S-wave), (c) Poisson’s ratio, and checkerboard resolutions ((d) P-wave and (e) S-wave) obtained for the profile ... See full document
20
Attenuation in the mantle, from spectral analysis of short-period seismic waves
... Thus far, the methods of determining t* values from power spectral estimates have been discussed. The least squares procedure used in this research is outlined in Subsection 7.1.1 along with a means of estimating the ... See full document
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