Results 21 to 30 of about 134,088 (166)

Seismic evidence for tearing in the subducting Indian slab beneath the Andaman arc

open access: yesGeophysical Research Letters, 2016
Segmentation of a subduction zone through tearing is envisaged as an inevitable consequence of the differential rate of slab rollback along the strike of convergent plate boundaries.
Prakash Kumar   +2 more
doaj   +1 more source

Receiver Function Analysis Reveals Lateral Variations in Temperature and Water Content in the Mantle Transition Zone Beneath Eastern North America

open access: yesGeophysical Research Letters, 2023
Using recently collected high‐resolution seismic data along a dense linear transect across Ohio, West Virginia, and Virginia (called Mid‐Atlantic Geophysical Integrative Collaboration (MAGIC) profile), we analyze P‐to‐S receiver functions to investigate ...
Shangxin Liu   +4 more
doaj   +1 more source

Multiple layers of seismic anisotropy and a low‐velocity region in the mantle wedge beneath Japan: Evidence from teleseismic receiver functions

open access: yesGeochemistry, Geophysics, Geosystems, 2012
A complete characterization of seismic anisotropy can yield powerful constraints on mantle flow and deformation. This is particularly important for the mantle wedge above subducting slabs, where the geometry of mantle flow remains poorly understood.
Erin A. Wirth, Maureen D. Long
doaj   +1 more source

Basis Pursuit Receiver Function [PDF]

open access: yesBulletin of the Seismological Society of America, 2014
Abstract Receiver functions (RFs) are derived by deconvolution of the horizontal (radial or transverse) component of ground motion from the vertical component, which segregates the PS phases. Many methods have been proposed to employ deconvolution in frequency as well as in time domain. These methods vary in their approaches to impose regularization
Sen, Mrinal K.   +3 more
openaire   +2 more sources

Crustal structure of southeast Australia from teleseismic receiver functions [PDF]

open access: yesSolid Earth, 2021
In an effort to improve our understanding of the seismic character of the crust beneath southeast Australia and how it relates to the tectonic evolution of the region, we analyse teleseismic earthquakes recorded by 24 temporary and 8 permanent broadband ...
M. Bello   +5 more
doaj   +1 more source

Seismological reference earth model in South China (SREM-SC): Crust and uppermost mantle

open access: yesFrontiers in Earth Science, 2023
The South China Block is located on the eastern margin of the Eurasian Plate and the western margin of the Pacific Plate. The South China Block is currently in a tectonically compressed environment, while the Tibetan Plateau is moving eastward and the ...
Jiamin Hu   +7 more
doaj   +1 more source

Insights Into Deep Mantle Thermochemical Contributions to African Magmatism From Converted Seismic Phases

open access: yesGeochemistry, Geophysics, Geosystems, 2021
The contribution of mantle upwellings of varying spatial extent to Cenozoic magmatism across Africa is debated because geochemical and seismological tools used to interrogate them are primarily sensitive to either composition or temperature ...
A. Boyce, S. Cottaar
doaj   +1 more source

Seismic evidence of the Hainan mantle plume by receiver function analysis in southern China

open access: yesGeophysical Research Letters, 2016
The Lei‐Qiong region is the largest igneous province in southern China and may be a surface expression of a mantle plume beneath the region (the Hainan mantle plume).
S. Shawn Wei, Y. John Chen
doaj   +1 more source

Crustal thicknesses and Poisson's ratios beneath the Chuxiong-Simao Basin in the Southeast Margin of the Tibetan Plateau

open access: yesEarth and Planetary Physics, 2019
In the Southeast Margin of the Tibetan Plateau, low-velocity sedimentary layers that would significantly affect the accuracy of the H-κ stacking of receiver functions are widely distributed.
ZiQi Zhang, Yuan Gao
doaj   +1 more source

Seismic Discontinuities Across the North American Caribbean Plate Boundary From S‐to‐P Receiver Functions

open access: yesGeochemistry, Geophysics, Geosystems, 2021
The evolution of the Caribbean plate has resulted in the formation of volcanic arcs, the Caribbean Large Igneous Province (CLIP) and micro‐plates across the plate boundary zones.
Daniel Possee   +3 more
doaj   +1 more source

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