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Article
Fault-controlled regional magmatism and mineral deposition in central Cathaysia—Evidence from ambient noise tomography
Guangdong Province in the central Cathaysian Block has two world-class metallogenic belts, namely, the Nanling and Southeastern Coastal Metallogenic Belts (NLMB and SCMB), which are spatially coincide with the...
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Article
Crustal velocity structure of the Northwest Sub-basin of the South China Sea based on seismic data reprocessing
The deep crustal structure of the Northwest Sub-basin (NWSB) of the South China Sea (SCS) is of great importance for understanding the tectonic nature of the continent-ocean transition (COT) and magmatism in t...
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Article
Relocation of two earthquakes in the Southwest Indian Ridge area combining land seismic stations’ with OBSs’ data
Two earthquakes were recorded by 20 ocean bottom seismometers (OBS) deployed in the Southwest Indian Ridge (SWIR) area during a three-dimensional seismic survey in 2010. Their magnitudes (both M ...
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Article
The role of rifting in the development of the continental margins of the southwest subbasin, South China Sea: Insights from an OBS experiment
The continental margins of the southwest subbasin in the South China Sea mark a unique transition from multi-stages magma-poor continental rifting to seafloor spreading. We used reflection and refraction profi...
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Article
Segmentation of the Manila subduction system from migrated multichannel seismics and wedge taper analysis
Based on bathymetric data and multichannel seismic data, the Manila subduction system is divided into three segments, the North Luzon segment, the seamount chain segment and the West Luzon segment starts in So...
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Article
Open AccessPassive seismic experiment and ScS wave splitting in the southwestern subbasin of South China Sea
The seismic experiment of 3D array of OBS in the southwestern sub-basin of the South China Sea (SCS) is briefly introduced in this paper. The data analysis of broadband OBS shows that totally 93 earthquakes wi...
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Article
Characteristics of PmP phases from earthquakes and their role in crustal tomography: An active volcanic area example, northeastern Japan
Later earthquake-sourced PmP phases have the potential to significantly improve ray coverage and resolution of crustal tomography methods, as their trajectories are quite different from those of shallower P ph...
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Article
A new way to generate seismic waves for continental crustal exploration
An airgun experiment was conducted in a reservoir, with the total volume of the airgun array being 6000 cubic inch. The energy released by one excitation was estimated to be 6.68×106 J, which corresponded to a 3....
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Article
The application of large volume airgun sources to the onshore-offshore seismic surveys: implication of the experimental results in northern South China Sea
Onshore-offshore seismic experiments were carried out for the first time in northern South China Sea using large volume airgun sources at sea and seismic stations on land. The experimental results indicate tha...
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Article
Characteristics of the crustal structure and hypocentral tectonics in the epicentral area of Nan’ao earthquake (M7.5), the northeastern South China Sea
1918 Nan’ao earthquake (M7.5) occurred in the northeast coastal areas of Guangdong Province. With the seismogeological survey of the epicentral area and history materials analyses, the earthquake epicenter was...
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Article
Research on the dynamics of the South China Sea opening: Evidence from analogue modeling
Independent of Indochina extrusion, the South China Sea experienced a process from passive continental rifting to marginal sea drifting. According to the fault patterns in the Beibu Gulf basin and the Pearl Ri...
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Article
Characteristics of the mantle source region of sodium lamprophyres and petrogenetic tectonic setting in northeastern Hunan, China
A set of unique sodium lamprophyres is developed in the Cenozoic intraconti-nental extensional zone of northeastern Hunan. These lamprophyres are significantly different in major and trace elements and Sr, Nd ...