Results 51 to 60 of about 2,766 (215)
Preliminary report on exploration for diamondiferous kimberlites, Colorado – Wyoming
, 1979 Preliminary report on exploration for diamondiferous kimberlites, Colorado ...
W.D. Hausel (10069834) +2 more
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Geochemistry, Geophysics, Geosystems, 2014 Both silicate melts and aqueous fluids are thought to play critical roles in the chemical differentiation of the Earth's crust and mantle. Yet their relative effects are poorly constrained. We have addressed this issue by measuring partition coefficients
John Adam +4 more
doaj +1 more source
THE FEATURES OF THE INDICATOR MINERALS OF KIMBERLITES IN A NEW PIPE YANVARSKAJA (WESTERN YAKUTIA)
Известия высших учебных заведений: Геология и разведка, 2017 The first results of the mineral-petrographic studies of microclastes of kimberlites from the basal horizon of the Upper Paleozoic deposits of the Alakit-Markhinsky kimberlite field (Western Yakutia) have been presented.
D. V. Ivanov +2 more
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Kimberlites I: Kimberlites and Related Rocks. Kimberlites II: The Mantle and Crust‐Mantle Relationships [PDF]
Eos, Transactions American Geophysical Union, 1985 These volumes open with a tribute to academician Vladimir Stepanovich Sobolev, who died several days before the opening of the Third International Kimberlite Conference at Clermont Ferrand, France. V.S. Sobolev made major contributions to the field of kimberlite and upper mantle petrology throughout his lifetime and did much to spark the renaissance in
openaire +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
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Hf isotope systematics of Kimberlites and their megacrysts: new constraints on their source regions
, 2004 Kimberlites from Southern Africa, along with their low-Cr mega-crysts, have unusual Hf–Nd isotopic characteristics. Group I and Transitional kimberlites define arrays trending oblique to, and well below, the Nd–Hf isotope ‘mantle array’, defined by ...
D. R. Bell +13 more
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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
Руды и металлыPossibilities of the infrared microscopy technique as applied to the express diagnostics of diamond crystals and of grains of most of its satellite minerals, extracted from heavy mineral concentrate (HMC) samples, are considered. An original technique of
Khachatryan G. K., Anashkina N. E.
doaj +1 more source
Geosystems and Geoenvironment, 2022 We have re-visited the ‘diamondiferous kimberlite’ from the Jamnidih area of Mahasamund, Bastar Craton, Central India. This study presents detailed field observations, petrographic and geochemical studies of Jamnidih rocks in view of the reported ...
Mahendra Kumar Singh +3 more
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Diamonds, dunites, and metasomatic rocks formed by melt/rock reaction in craton roots
Communications Earth & Environment, 2022 Reactions of depleted, reduced peridotite with oxidised volatile-rich melts can explain several contentious rock assemblages sampled by kimberlites from the metasomatised zone at the base of the lithosphere, according to high pressure laboratory ...
Zsanett Pintér +2 more
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