Results 51 to 60 of about 3,348 (162)
DISTRIBUTION OF TRACE ELEMENTS IN PEROVSKITE FROM SKARNS AND CALCITE VEINS OF THE CHERNAYA RECHKA AND NAZYAM RIDGES (SOUTH URALS) [PDF]
Минералогия, 2017 Trace element distribution and crystal morphology of perovskite from garnet-vesuvianite skarn of the Akhmatovskaya mine and chlorite-perovskite-calcite veins of the Perovskitovaya mine (South Urals) were studied using LA-ICP-MS.
S.Yu. Stepanov +3 more
doaj
Earth and Space Science, Volume 13, Issue 8, August 2026.Abstract An audiomagnetotelluric (AMT) survey was conducted within the Alto Paranaíba Igneous Province, southeastern Brazil, to delineate shallow occurrences of kamafugite, a rare ultrapotassic volcanic rock worldwide. A dense grid of AMT stations was deployed, allowing the construction of a high‐resolution 3D electrical resistivity model ...
Lucca M. Franco +6 more
wiley +1 more source
Diamonds, kimberlites, lamproites and related rocks in the United States
, 1994 Diamonds, kimberlites, lamproites and related rocks in the United ...
W.D. Hausel (10069834)
core +1 more source
Geochemistry, Geophysics, Geosystems, 2011 The crystallization ages and the Sr and Nd isotopic compositions of groundmass perovskite from a well‐established, SE trending, Triassic‐Jurassic corridor of kimberlite magmatism in central and eastern North America were determined to investigate the ...
S. E. Zurevinski +2 more
doaj +1 more source
Известия высших учебных заведений: Геология и разведка, 2019 The main source of mined diamonds in Russia is the Yakutia diamond-bearing province (YAP). To date, all open areas within the prospective Vilyuy-Markha deep fault zone (VMZ) of the YAP, which is a mineragenetic and which hosted diamond deposits of Mir ...
M. V. Maltsev +2 more
doaj +1 more source
The Complexity of Deep Aqueous Fluids in Planetary Ultramafic Mantles
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 7, July 2026.Abstract Planetary volatiles cycle through a planet's crust, mantle, and atmosphere, playing a crucial role in surface processes and habitability. Discussions of planetary volatiles traditionally focus on water, carbon, nitrogen, and sulfur, but fluids in contact with silicate rocks and ultramafic mantles can contain significant amounts of magnesium ...
Sophia E. Economon +1 more
wiley +1 more source
Petrology and geochemistry of peridotite xenoliths from the Letlhakane kimberlites, Botswana
, 1997 The diamondiferous Letlhakane kimberlites are intruded into the Proterozoic Magondi Belt of Botswana. Given the general correlation of diamondiferous kimberlites with Archaean cratons, the apparent tectonic setting of these kimberlites is somewhat ...
Viljoen, K S +2 more
core +1 more source
Kimberlites in a karoo graben of northern Mozambique : tectonic setting, mineralogy and RB-Sr geochronology [PDF]
, 2007 Kimberlites in northern Mozambique are aligned with the northeastern extremity of a trans-continental northeast to southwest trending kimberlite corridor that stretches from southern Namibia across Botswana into central Zimbabwe.
Key, R.M. +6 more
core +1 more source
Tectonics, Volume 45, Issue 7, July 2026.Abstract The accretion of allochthonous provinces, derived from oceanic plates, has traditionally been considered an important contributor to continental growth. However, increasing evidence shows that some oceanic terranes (e.g., island arcs) are not “exotic,” as suggested by the presence of continental‐derived sedimentary provenance.
Igor V. Gomes +4 more
wiley +1 more source
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 +2 more
doaj +1 more source