Results 21 to 30 of about 657 (209)

Plume genesis of non-kimberlite diamonds

open access: yesЛитосфера, 2015
Calculations shown that a relatively low-temperature kimberlite magmas consolidated with decompression exploded on significant depth and formed pipes.
V. S. Shkodzinskiy
doaj   +3 more sources

Geochemistry of forty‐one eclogitic and pyroxenitic mantle xenoliths from the Central Slave Craton, Canada (Ekati Diamond Mine)

open access: yesGeoscience Data Journal
This article describes a novel dataset on non‐diamondiferous eclogite and garnet pyroxenite xenoliths from four kimberlite pipes of the Ekati Diamond Mine (Central Slave Craton, Canada). Xenoliths brought to the surface by kimberlite eruptions are direct
D. E. Jacob, A. Fung
doaj   +2 more sources

Processing gravity gradients to detect kimberlite pipes [PDF]

open access: yesASEG Extended Abstracts, 2015
A modelling and pattern recognition-based approach is applied to processing airborne gravity gradient data for kimberlite exploration.
exaly   +2 more sources

Petrophysical characteristics of geological-geophysical models of kimberlite pipes of the Archangelsk' kimberlite province

open access: yesRUDN Journal of Engineering Research, 2008
The results on physical properties of naturally hosting rocks and kimberlites of Arkhangel'sk diamondiferous province are considered. Geologic-geophysical model of diamond deposits of the considered field has been constructed.
V YU Abramov
doaj   +1 more source

Restoring the past glory of Diamond Mining in south India- A plausible case of diamondiferous Wajrakarur kimberlite pipe clusters with geochemical evidences [PDF]

open access: yesInternational Journal of Mining and Geo-Engineering, 2019
A plausible case of collective and economical mining of diamondiferous kimberlite deposits of Wajrakarur and adjoining places in Andhra Pradesh, southern India along with the whole-rock geochemical evidences in support of their diamond potentiality are ...
Rameshchandra Phani Pothuri
doaj   +1 more source

THE “CLINOPYROXENE” PALEOGEOTHERM BENEATH THE OBNAZHENNAYA KIMBERLITE PIPE AND THIСKNESS OF LITHOSPHERE UNDER THE KUOYKA FIELD (SIBERIAN CRATON, YAKUTIA)

open access: yesГеодинамика и тектонофизика, 2022
The mantle paleogeotherm under the Obnazhennaya kimberlite pipe (Kuoika field, Siberian craton) was reconstructed using the chemical composition of clinopyroxene xenocrystals and the FITPLOT program.
E. A. Muravjeva   +5 more
doaj   +1 more source

Geotechnical Modelling for Kimberlite Pipes [PDF]

open access: yesProceedings of the First Southern Hemisphere International Rock Mechanics Symposium, 2008
EKATI Diamond Mine is located some 200 km south of the Arctic Circle and 300 km northeast of Yellowknife in the Northwest Territories of Canada. It is a remote fly-in-fly-out site with road access limited to the winter ice road season. The operation currently consists of two active open pits and two underground operations.
Duncan Tyler, S Godden
openaire   +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

open access: yesRussian 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

Diamonds in old sedimentary rocks and their source (on the basis of Yakutia kimberlite province)

open access: yesРуды и металлы, 2022
This study provides the results of a complex investigation of a number of kimberlite bodies with half-industrial diamond content in several regions of the Siberian platform. This allowed us to establish the typomorphic features of the mineral.
Leonid D. Barduchinov   +1 more
doaj   +1 more source

On the presence of the postmagmatic stage of diamond formation in kimberlites

open access: yesЗаписки Горного института, 2022
On nowadays multiphase and the facies heterogeneity of the formations are distinguished at the study of kimberlite pipes. Most researchers associate the formation of diamonds only with the mantle source.
Sergey K. Simakov, Yuri B. Stegnitskiy
doaj   +1 more source

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