Results 11 to 20 of about 208 (182)
On the presence of the postmagmatic stage of diamond formation in kimberlites
Записки 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
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Geotechnical Modelling for Kimberlite Pipes [PDF]
Proceedings 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
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A mantle origin for sulfates in the unusual “salty” Udachnaya-East kimberlite from sulfur abundances, speciation and their relationship with groundmass carbonates [PDF]
BSGF - Earth Sciences Bulletin, 2017 The Udachnaya-East pipe in Yakutia in Siberia hosts a unique dry (serpentine-free) body of hypabyssal kimberlite (
D’Eyrames Elisabeth +5 more
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Geosciences, 2022 Тhe task of searching for kimberlite pipes in covered areas of the Yakutia kimberlite province is very difficult due to the significant heterogeneity of the rocks overlying kimberlite pipes.
Alexander K. Saraev +2 more
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Геодинамика и тектонофизика, 2016 The paper presents the results of comprehensive study of the primary diamond deposit of the Nyurbinskaya pipe in the Yakutian diamondiferous province. It is established, that the pipe is confined to the fault junction of four directions and is composed ...
A. S. Gladkov +6 more
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Геодинамика и тектонофизика, 2022 This paper reports the results on the composition of lithosphere mantle under the Mirny kimberlite field. The authors investigated 57 samples of the mantle xenoliths collected from the Mir pipe.
T. V. Kalashnikova +3 more
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Oxide minerals of Kaavi kimberlites (Finland)
Известия высших учебных заведений: Геология и разведка, 2019 The mineralogical and petrogeochemical features of the Neoproterozoic kimberlite rocks of the Lahtojoki and Niilonsuo pipes of the Kaavi cluster (Kaavi-Kuopio, Finland) have been studied, differences in their petrogeochemical composition, quantitative ...
N. S. Azarova +4 more
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Diamonds in old sedimentary rocks and their source (on the basis of Yakutia kimberlite province)
Руды 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
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Ecological Risk Assessment of PTEs in Topsoils Impacted by Diamond Mining (Yakutia, Russia) [PDF]
E3S Web of Conferences, 2023 The concentrations of potentially toxic elements (PTEs) in the topsoils of Udachny mining area were determined. The soil samples were taken from the 42 topsoil samples at a depth of 0-20 cm.
Gololobova Anna
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An ion microprobe U-Th-Pb study of zircon xenocrysts from the Lahtojoki kimberlite pipe, eastern Finland [PDF]
Bulletin of the Geological Society of Finland, 2001 Eleven relatively large (diameter 1–2 mm) zircon grains extracted from the Lahtojoki kimberlite pipe (Eastern Finland Kimberlite Province) have been analysed by the ion microprobe NORDSIM for their U- and Pb- isotopic composition.
P. Peltonen, I. Mänttäri
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