Results 21 to 30 of about 2,090 (259)

Crustal structure and the seismogenic environment in Yunnan imaged by double-difference tomography

open access: yesFrontiers in Earth Science, 2023
The large-scale faulting and earthquake activities that developed extensively in the Yunnan area are associated with the collision of India and Eurasia. The fine crustal structure can provide a better understanding of the crustal deformation, seismogenic
Ya Sun   +5 more
doaj   +1 more source

A seismic model for crustal structure in North China Craton

open access: yesEarth and Planetary Physics, 2017
We present a digital crustal model in North China Craton (NCC). The construction of crustal model is based on digitization of original seismic sounding profiles, and new results of three-dimensional structure images of receiver functions.
TianYu Zheng   +3 more
doaj   +1 more source

Evidence for crustal magma chamber associated with metallogeny based on P-wave velocities, South China

open access: yesGeosystems and Geoenvironment, 2022
Recent seismic studies presented evidence for mantle upwelling and magmatic intrusions in the Cathaysia Block in South China. However, the key evidence or crustal velocity structure to understand crustal magma chambers that contributed to ore ...
Jiawei Li, Chuansong He, M. Santosh
doaj   +1 more source

Seismic traveltime inversion for 2-D crustal velocity structure [PDF]

open access: yesGeophysical Journal International, 1992
SUMMARY A method of seismic traveltime inversion for simultaneous determination of 2-D velocity and interface structure is presented that is applicable to any type of body-wave seismic data. The advantage of inversion, as opposed to trial-and-error forward modelling, is that it provides estimates of model parameter resolution, uncertainty and non ...
C. A. Zelt, R. B. Smith
openaire   +1 more source

Crustal velocity structure north of the Mendocino Triple Junction

open access: yesGeophysical Research Letters, 1994
A 140‐km‐long refraction/wide‐angle reflection profile recently recorded by Stanford University and the U. S. Geological Survey imaged the subducting Gorda slab beneath northern California. The profile, which is subparallel to the coast from Cape Mendocino northward, indicates that the North American plate is 13‐ to 14‐km‐thick along the coast north of
Bruce C. Beaudoin   +2 more
openaire   +1 more source

Crustal velocity structure of the Deccan Volcanic Province, Indian Peninsula, from observed surface wave dispersion

open access: yesAnnals of Geophysics, 2014
Through inversion of fundamental mode group velocities of Love and Rayleigh waves, we study the crustal and subcrustal structure across the central Deccan Volcanic Province (DVP), which is one of the world’s largest terrestrial flood basalts.
Gaddale Suresh   +2 more
doaj   +1 more source

Structural Characteristics of Moho Surface Based on Time Series Function of Natural Earthquakes

open access: yesRemote Sensing, 2021
Remote sensing is a non-contact, long-distance detection technology. The reflection characteristics of a seismic wave can be used to detect remote and non-contact targets.
Xuelei Li   +4 more
doaj   +1 more source

Structure Along the Martian Dichotomy Constrained by Rayleigh and Love Waves and Their Overtones

open access: yesGeophysical Research Letters, 2023
Using seismic recordings of event S1222a, we measure dispersion curves of Rayleigh and Love waves, including their first overtones, and invert these for shear velocity (VS) and radial anisotropic structure of the Martian crust.
D. Kim   +14 more
doaj   +1 more source

Regional characteristics of the lithospheric structure in the southeast of North China revealed by explosion seismology

open access: yesGeodesy and Geodynamics, 2021
Based on the blasting seismic detection data obtained in the southeast of North China in recent years, this paper comprehensively analyzes and studies the crust-mantle lithospheric structure and seismological characteristics of different tectonic regions,
Zhenyu Fan   +6 more
doaj   +1 more source

3D crustal velocity and VP/VS structures beneath Southeast Anatolia and their geodynamic implications

open access: yesГеофизический журнал, 2019
We applied a seismic tomography method to arrival time data generated by local crustal earthquakes in Southeast Anatolia to study the shallow, three-dimensional, velocity and VP/VS structures beneath the area.
M. K. Salah, Ş. Şahin
doaj   +1 more source

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