Results 51 to 60 of about 187,304 (228)

Multiphase Tectonic Process With Slab Dynamics in the Northern East China Sea Shelf Basin

Geological Journal, EarlyView.
Megasequence 1 characterised by Palaeocene extension and differential subsidence driven by the rollback of the subducting Izanagi Plate. Megasequence 2 records a kinematic reorganisation of the East Asian margin, transition from a rifting to a compressional regime.
Juhwan Woo, Won‐Ki Kim, Chul Woo Rhee, Seungyeol Lee   +3 more
wiley   +1 more source

A Reassessment of Petrochemistry of ~1.2 Ga Tonalitic Rocks of the Northern Tugela Terrane, Natal Metamorphic Belt, South Africa: Further Constraints on the Evolution of This Belt

Geological Journal, EarlyView.
Our petrochemical studies on ~1.2 Ga granitoids of the Natal Metamorphic Belt, South Africa, do not suggest any property similar to Phanerozoic‐style subduction‐related granitoids. Plot of Kotongweni Tonalite in Y versus Sr diagram (after Moyen 2011), note that most samples have Sr/Y < 50.
Palesa Leuta, Saumitra Misra, Thembiso O. Basupi   +2 more
wiley   +1 more source

Lithospheric Mantle Heterogeneity Drives Delayed Magmatism and Wide Continent‐Ocean Transitions in Rifted Margins

Geophysical Research Letters
The formation of wide, magma‐starved continent–ocean transition (COT) zones remains incompletely understood. We use 2‐D thermo‐mechanical numerical experiments, coupling hydrous mantle melting with parameterized crustal accretion, to explore controls on ...
Yuan Wang, Zhonglan Liu
doaj   +1 more source

Thermal State and Thickness of the Lithospheric Mantle Beneath the Northern East-European Platform: Evidence from Clinopyroxene Xenocrysts in Kimberlite Pipes from the Arkhangelsk Region (NW Russia) and Its Applications in Diamond Exploration

Geosciences
This paper presents the reconstruction of the architecture of the lithospheric mantle, including its thermal state and thickness, as well as the scale and efficiency of its sampling by four kimberlites from the Arkhangelsk diamondiferous province ...
Elena Agasheva, Alyona Gudimova, Elena Malygina, Alexey Agashev, Alexey Ragozin, Elena Murav’eva, Anna Dymshits   +6 more
doaj   +1 more source

Lithospheric heating by mantle plumes [PDF]

Geophysical Journal International, 1987
Summary. A broad topographic swell is associated with the Hawaiian hotspot. A kinematic model is developed assuming that downstream of the hotspot this swell is produced by lithospheric heating by a mantle plume. Material from the model plume flows radially in the asthenosphere and eventually heats the lower lithosphere.
openaire   +1 more source

Unraveling the Connection Between Subsurface Stress and Geomorphic Features

Geophysical Research Letters
The tectonic stress field induces surface deformation. At long wavelengths, both lithospheric heterogeneity (changes in the thickness and density of crust and lithospheric mantle) and basal tractions from mantle convection contribute to the stress field.
B. Kuhasubpasin, S. Moon, C. Lithgow‐Bertelloni   +2 more
doaj   +1 more source

Heat Generation in Cratonic Mantle Roots—New Trace Element Constraints From Mantle Xenoliths and Implications for Cratonic Geotherms

Geochemistry, Geophysics, Geosystems, 2021
Heat generation within the cratonic lithospheric mantle (CLM) is an important but poorly determined parameter for constructing cratonic geotherms. Direct measurement of heat producing element (HPE: K, U, and Th) concentrations in bulk‐rock samples of ...
T. McIntyre, K. Kublik, C. Currie, D. G. Pearson   +3 more
doaj   +1 more source

Imaging the lithospheric structure and plumbing system below the Mayotte volcanic zone

Comptes Rendus. Géoscience, 2022
Teleseismic receiver-functions and Rayleigh-wave dispersion curves are jointly inverted for quantifying $S$-wave velocity profiles beneath the active volcanic zone off Mayotte.
Dofal, Anthony, Michon, Laurent, Fontaine, Fabrice R., Rindraharisaona, Elisa, Barruol, Guilhem, Tkalčić, Hrvoje   +5 more
doaj   +1 more source

Mineralogy of the HSE in the subcontinental lithospheric mantle —An interpretive review

Lithos, 2020
We thank Laurie Reisberg, Hannah Hughes and an anonymous referee for their criticism, which greatly improved the quality of our manuscript. We also are indebted to Prof. Sisir K. Mondal for Editorial handling of this work and their constructive edits.
González-Jiménez, J.M., Tassara, S., Schettino, E., Roqué-Rosell, J., Farré-de-Pablo, J., Saunders, J.E., Deditius, A.P., Colás, V., Rovira-Medina, J. J., Dávalos, M.G., Schilling, M., Jiménez-Franco, A., Marchesi, C., Nieto, F., Proenza, J.A., Gervilla, F.   +15 more
openaire   +4 more sources

Influence of the Hainan Plume on the Deep Thermal Structure and Shallow Geothermal Field of Southeastern Coastal China

Journal of Marine Science and Engineering
Thermal anomalies within the lithosphere are an important manifestation of mantle plume–lithosphere interaction. Early studies primarily concentrated on the presence of the Hainan plume and its surface responses, with comparatively little research ...
Huihui Zhang, Lijuan He, Yaqi Wang
doaj   +1 more source