Results 111 to 120 of about 187,483 (224)

High‐Resolution Tomography for the Upper‐Mantle Structure in North China by Full‐Waveform Inversion of Teleseismic P Wave and Its Codas

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract We investigate the structure and tectonic environment in the crust and upper mantle beneath the North China Craton (NCC) by conducting a full‐waveform inversion of teleseismic P and its coda waves from densely distributed broadband seismic stations. A high‐resolution model involving P‐ and S‐wave velocities as well as density is constructed by
Xuan Zhao, Yi Wang, Jia Yi, Qiwen Zhu, Li Zhao   +4 more
wiley   +1 more source

Pristine helium from the Karoo mantle plume within the shallow asthenosphere beneath Patagonia

Nature Communications
Mantle xenoliths usually represent fragments derived from the depleted and degassed lithospheric mantle with 3He/4He isotope ratios (6 ± 1 RA) lower than those of mid-ocean ridge basalts (8 ± 1 RA).
Tiago Jalowitzki, Hirochika Sumino, Rommulo V. Conceição, Manuel E. Schilling, Gustavo W. Bertotto, Andrés Tassara, Fernanda Gervasoni, Yuji Orihashi, Keisuke Nagao, Marcelo Peres Rocha, Rodrigo Antonio de Freitas Rodrigues   +10 more
doaj   +1 more source

The Significance of Inherited Crustal Thickening in Surface Uplift of Hangai Dome in Central Mongolia

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract The Hangai Dome in central Mongolia represents one of the most prominent intracontinental uplifts, yet the relative contributions of crustal and mantle dynamics in sustaining its high topography remain unresolved. Here we jointly invert Rayleigh wave dispersion and receiver function data to constrain crustal and uppermost mantle structures ...
Yingkai Wu, Xuewei Bao, Mengfan Jiang, Bingfeng Zhang, Wenjia Song   +4 more
wiley   +1 more source

Carbonate- and silicate-metasomatized mantle beneath Himalayan-Tibetan orogenic belt

Communications Earth & Environment
The extreme geochemical enrichment of post-collisional potassium-rich lava in the Alpine-Himalayan orogenic belt has led researchers to hypothesize that enrichment is inherited from a metasomatized mantle source potentially incorporating crustal ...
Weikai Li, Zhiming Yang, Zoltán Zajacz, Limin Zhou, Zengqian Hou   +4 more
doaj   +1 more source

Thick Underplating and Buoyancy of the Bermuda Swell

Geophysical Research Letters
Bermuda is an intraplate ocean swell that does not conform to traditional mantle plume theory. Unlike other prominent bathymetric swells, such as Hawaii, it lacks age‐progressive volcanism, a deeply rooted mantle plume, and modern volcanism.
William D. Frazer, Jeffrey Park
doaj   +1 more source

Magnetization of the lithosphere and the upper mantle based on magnetic-mineralogical data

Геофизический журнал
According to numerous studies, sources of magnetic anomalies in the lithosphere and mantle can have a magnetic-mineralogical nature due to magnetic minerals at mantle depths.
O.Ye. Shestopalova, V.V. Drukarenko
doaj   +1 more source

Plate‐Scale Imaging of Eastern US Reveals Ancient and Ongoing Continental Deformation

Geophysical Research Letters
Eastern North America was constructed over several Wilson cycles, culminating in the breakup of Pangea. Previous seismological imaging lacked the resolution to depict precisely how ancient tectonic boundaries manifest throughout the lithosphere, how ...
Brennan Brunsvik, Zachary Eilon, Colton Lynner   +2 more
doaj   +1 more source

Mantle lithosphere rheology

Experimental flow law for olivine at moderate T and PA first draft report on this subproject will be presented in the Draf Periodic report on month ...
openaire   +1 more source

LITHOSPHERE MANTLE DENSITY BENEATH THE SIBERIAN CRATON [PDF]

Geological Society of America Abstracts with Programs, 2016
Cherepanova, Yulia, Artemieva, Irina
openaire   +2 more sources

Nanoscale solid-fluid interaction and amphibole formation in the lithospheric mantle. [PDF]

Sci Rep
Lange TP, Pósfai M, Berkesi M, Pekker P, Pálos Z, Molnár G, Szabó C, Kovács IJ.   +7 more
europepmc   +1 more source