Results 1 to 10 of about 3,348 (162)

MIKHAIL M. ODINTSOV’S CONTRIBUTION TO DEVELOPMENT OF THE MINERAL AND RAW MATERIALS COMPLEX OF THE EASTERN SIBERIA

Геодинамика и тектонофизика, 2015
The publication is devoted to the role of Mikhail M. Odintsov, Corresponding Member of the USSR Academy of Sciences, and his scientific school in solution of fundamental problems related to regularities of occurrence of endogenic mineral resources at ...
Konstantin N. Egorov
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Comparative Study of the Kimberlites of Bakwanga (North Group) and Bakwa-Kalonji (South Group) In East Kasai, Democratic Republic of Congo.

Analecta
The presence of kimberlites in the Democratic Republic of Congo has been known since buttgenbach reported a typical ‘yellow ground’ in Katanga as early as 1908, and prospecting work before and after 1914 had already identified twenty-four pipes in ...
Onya Ngila Arnold, Kampata Mbwelele Dona, Koy Kasongo Ruben, Cibumba Cibumba Alain, Fwani Pambu Chamira, Kisambu Thigana Déogracias, Djonive Munene   +6 more
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GENESIS OF EXTREMELY MAGNESIAN DAUGHTER OLIVINE OF SECONDARY MELT INCLUSIONS FROM OLIVINE MACROCRYSTS IN KIMBERLITE FROM THE UDACHNAYA-EAST PIPE (SIBERIAN CRATON)

Геодинамика и тектонофизика
The paper presents the results of studies of daughter olivine within secondary melt inclusions marking healed cracks in olivine macrocrysts from unserpentinized kimberlite from the Udachnaya-East pipe.
A. A. Tarasov, A. V. Golovin
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PREDICTION OF THE PRIMARY SOURCES OF GIANT CLIPPIR DIAMONDS IN THE NORTH OF YAKUTIA BY THE METHOD OF MINERALOGICAL AND GEOCHEMICAL ANALOGY (METHOD 5E DIAGRAMS)

Геодинамика и тектонофизика
The finds of giant CLIPPIR-type diamonds in the placers hosted by the Ebelyakh River basin in the north of Yakutia suggest that similar diamonds can be found in the kimberlites of the Anabar region and the nearest northern deposits located within the ...
A. S. Ivanov, V. N. Zinchenko, I. V. Ashchepkov, S. A. Babushkina, O. B. Oleinikov, P. N. Shelkov   +5 more
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Tracking the Late Jurassic apparent (or true) polar shift in U‐Pb‐dated kimberlites from cratonic North America (Superior Province of Canada)

Geochemistry, Geophysics, Geosystems, 2015
Different versions of a composite apparent polar wander (APW) path of variably selected global poles assembled and averaged in North American coordinates using plate reconstructions show either a smooth progression or a large (∼30°) gap in mean ...
Dennis V. Kent, Bruce A. Kjarsgaard, Jeffrey S. Gee, Giovanni Muttoni, Larry M. Heaman   +4 more
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The principal morphogenetic characteristics of kimberlite indicator minerals

Руды и металлы
The article provides information on the morphology and morphogenesis of minerals from kimberlites and their scattering halos. The principal morphogenetic characteristics of the main kimberlite indicator minerals are discussed in detail.
Khmelkov A. M., Chuguevskaya E. A.
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The capacity of hydrous fluids to transport and fractionate incompatible elements and metals within the Earth's mantle

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, Marek Locmelis, Juan Carlos Afonso, Tracy Rushmer, Marco L. Fiorentini   +4 more
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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, V. V. Ivanov, A. V. Tolstov   +2 more
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On the problem of transportability of kimberlite minerals relative to their source: The case of pyrope and picroilmenite

Руды и металлы
Data on transportability of kimberlite minerals with increasing distance from their primary source are presented. It is argued that the degree of mechanical processing of kimberlite indicator mineral grains is the most reliable criterion for determining ...
Aleksandr Mikhailovich Khmelkov, Elvira Aleksandrovna Chuguevskaya   +1 more
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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
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