Results 81 to 90 of about 6,833 (203)

The principal morphogenetic characteristics of kimberlite indicator minerals

open access: yesРуды 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.
doaj   +1 more source

Experimental modeling of diamond dissolution in kimberlite within crustal cumulative centers

open access: yesЗаписки Горного института
The main stages within the chemically active history of diamond genesis are proposed, from the upper-mantle chambers to the explosive ejections of diamonds and kimberlite material from cumulative centers to the surface. The paper focuses on the pre-final
Anastasiya V. Kuzyura   +2 more
doaj  

Kimberlite weathering : mineralogy and mechanism [PDF]

open access: yes, 2007
Thesis (PhD (Metallurgical Engineering))--University of Pretoria, 2006.The aim of this study was to arrive at a fundamental understanding of kimberlite weathering and of factors which affect the rate and extent of weathering.

core   +1 more source

Features of apatite in kimberlite from Ekati Diamond Mine and Snap Lake: modelling kimberlite composition

open access: yes, 2017
Magmatic volatiles (H2O, CO2, F, Cl) and the timing of fluid exsolution have implications for kimberlite melt composition, eruption and preservation of diamonds.
Milligan, Rachel S.
core   +1 more source

Harmonization of hypothesis of an electric discharge formation of kimberlite pipes with an electric discharge diamond synthesis

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов, 2019
Relevance and purpose of the study. For the first time the geological literature on diamond provides a comparison of the latest data on diamond synthesis and hypothesis of kimberlite pipe formation.
Konstantin Khazanovitch-Wulff
doaj   +2 more sources

Volatiles drive kimberlite volcanism

open access: yes
International audienceKimberlite melts are primary carriers of mantle-derived carbon and hydrogen, playing an important role in the Earth's deep carbon cycle and diamond transport.
Davis, Anne, H   +3 more
core   +1 more source

Kimberlite ash: Fact or fiction

open access: yes, 2012
Kimberlite pipes represent the conduits and vents of eroded volcanoes and are commonly filled with both coherent and volcaniclastic kimberlite including pyroclastic deposits, resulting from explosive volcanic eruptions.
Porritt, L. A.   +3 more
core   +1 more source

Regulation of the oil receptivity of the surface of diamonds and kimberlite minerals using various classes of regulating agents

open access: yesГорные науки и технологии
The purpose of the research is to select appropriate agents for regulating the oil receptivity of diamond and kimberlite mineral surfaces in the conditioning of diamond-kimberlite products prior to their beneficiation by froth flotation and X-ray ...
V. A. Chanturiya   +3 more
doaj   +1 more source

Kimberlite Crystallization and Emplacement Through the Lens of Mantle-Derived Ilmenite and Chromite

open access: yes
Kimberlites, the primary hosts of diamond deposits, are enigmatic igneous rocks derived from the mantle and emplaced into cratons. There is still limited understanding of their origin and formation.
Fairhurst, Lydia
core  

New identity of the kimberlite melt: Constraints from unaltered diamondiferous Udachnaya-East pipe kimberlite, Russia

open access: yes, 2011
Kimberlite magmas are in many aspects unusual compared to other terrestrial magmatic liquids. They are very rare and occur in small volumes, but their intimate relationships with diamonds make them invaluable to the scientific and exploration communities.
Vadim Kamenetsky (14740705)   +2 more
core  

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