Results 61 to 70 of about 14,415 (244)

Quantifying Vein Network Permeability in Dehydrated Serpentinites Using Thermodynamics and Generative AI

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 2, February 2026.
Abstract Fluids released from subducting hydrated rocks influence volcanism, tectonics, and geochemical cycling, but the mechanisms of fluid escape in subduction zones remain poorly understood. We address this issue by investigating the Erro‐Tobbio meta‐serpentinites (ET‐MS), Italy, exhumed serpentinite rocks that preserve extensive dehydration vein ...
Austin Arias, Lisa Eberhard, Andreas Beinlich, Timm John, Alissa Kotowski, Oliver Plümper   +5 more
wiley   +1 more source

East Meets West: The Trace of the Mesoproterozoic Kibaran Event in the Mantle Lithosphere Beneath Eastern Tanzania

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 1, January 2026.
Abstract We present elemental geochemistry and multiple isotopic systematics (Re‐Os, Lu‐Hf, Sm‐Nd and Sr) for mantle peridotite xenoliths from Lashaine in northern Tanzania. We use the data to examine how the major Proterozoic tectono‐thermal events that affected the crust of the western Tanzanian craton are imprinted on the lithospheric mantle in the ...
Sheng‐Hua Zhou, Qiao Shu, Sally A. Gibson, Hong‐Fu Zhang, Jing‐Jing Zhu, Hélène Legros, D. Graham Pearson   +6 more
wiley   +1 more source

Specific features of clay minerals in ancient crusts of weathering of various rocks in diamondiferous regions

Мінеральні ресурси України, 2019
Results of complex research of different age ancient weathering crusts in various rocks (terrigenous-carbonate rocks of Lower Paleozoic, dolerites, tuffs and tufogene formations, kimberlites) within the main diamondiferous regions of the Siberian ...
M. M. Zinchuk
doaj   +1 more source

Electrical Conductivity of Carbonatite Melts to 20 GPa: Constraints on Partial Melting Atop the 410‐km Discontinuity and in the Lower Mantle Transition Zone

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 1, January 2026.
Abstract Deep‐origin carbonatite melts are considered to be the products of partial‐melting of the oceanic crust in the subduction zones. In this study, we conducted electrical conductivity (EC) measurements on two samples, the composition of which resemble the partial‐melting products atop the 410‐km discontinuity and in the lower part of the ...
Bin Zhao, Jintao Zhu, Qi Chen, Takashi Yoshino   +3 more
wiley   +1 more source

Geochemistry and petrology of two kimberlites at Krishtipadu from Gooty cluster, Andhra Pradesh, southern India - evidence of kimberlite magmatism and a possible carbonatite association within Palaeoproterozoic lower Cuddapah basin

Russian Journal of Earth Sciences, 2020
This paper addresses geochemical and petrological aspects of two outcropping kimberlites (5023 and 5119) of the Gooty cluster, emplaced in carbonate sediments of Vempalli Formation of lower Cuddapah basin at Krishtipadu, Anantapur district, Andhra ...
Phani P Ramesh Chandra, Sengupta Prabir, Basu Sudeshna   +2 more
doaj   +1 more source

The Buoyancy of Cratonic Lithospheric Mantle

Geophysical Research Letters, Volume 52, Issue 24, 28 December 2025.
Abstract Cratons are generally thought to be characterized by stable, long‐lived mantle roots. However, recent studies have suggested that the lithospheric mantle may be prone to removal, implying that it may be denser than the asthenosphere. To address these suggestions, we use a global data set of mantle xenoliths to estimate the density structure of
Z. J. Sudholz, A. Copley, K. Priestley
wiley   +1 more source

Material aspects of kimberlite rocks productivity

Мінеральні ресурси України, 2017
Most of investigated kimberlite diatremes of the Siberian platform represent multiphase pipes. Each magmatic phase of intrusion, formed inside diatremes, is composed by kimberlites with specific petrographic and petrochemical type possessing a number of ...
M. M. Zinchuk
doaj  

Current trends of improving the efficiency of froth separation of diamond-bearing kimberlites

Горные науки и технологии
Along with the introduction of new froth separation sections at new and existing enterprises, the basis for increasing the output of small diamonds is the reduction of their losses at the existing froth separation sections.
Valery V. Morozov, Evgeny G. Kovalenko, Galina P. Dvoichenkova, Irina V. Pestryak, Svetlana P. Lezova   +4 more
doaj   +1 more source

Review of South African research on volcanic and related rocks and mantle-derived materials : 1999-2002 [PDF]

, 2003
This report reviews South African research relating to the scientific interests of the International Association of Volcanology and Chemistry of the Earth's Interior (IAVCEI) and which was published between 1999 and 2002.
Marsh, J S
core   +1 more source

Toward Reconstructing Mantle Convection Using a Minimum‐Continent‐Motion Reference Frame

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 12, December 2025.
Abstract Studying geodynamic processes at the plate‐mantle interface requires knowledge of how plates move over and subduct into the mantle. The absolute motion of plates relative to the mantle since ∼120 Ma is classically estimated using hotspot tracks.
S. D. M. Wagenaar, B. Vaes, D. J. J. van Hinsbergen   +2 more
wiley   +1 more source