Results 1 to 10 of about 2,508 (202)

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

Геодинамика 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, A. M. Dymshits, I. S. Sharygin, A. V. Golovin, A. M. Logvinova, O. B. Oleinikov   +5 more
doaj   +2 more sources

Abiotic polycyclic aromatic hydrocarbons originating from the sub-oceanic mantle [PDF]

Scientific Reports
Experimental studies have demonstrated that petroleum may form from abiotic organic compounds synthesised in the Earth’s upper mantle. However, the most direct evidence of mantle-derived organics, as obtained from whole-rock analyses, indicates ambiguous
Itaru Mitsukawa, Akira Miyake, Yohei Igami, Tetsu Kogiso, Norikatsu Akizawa, Junya Matsuno, Megumi Matsumoto, Akira Tsuchiyama, Kentaro Uesugi, Masahiro Yasutake, Tomoki Taguchi, Yoshio Takahashi, Shohei Yamashita, Shota Okumura   +13 more
doaj   +2 more sources

Application of the Controlled Source Radiomagnetotellurics (CSRMT) in the Study of Rocks Overlying Kimberlite Pipes in Yakutia/Siberia

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, Arseny A. Shlykov, Buelent Tezkan   +2 more
doaj   +1 more source

Diamonds from low-grade kimberlite

Руды и металлы, 2022
Based on exploration and sampling work on the Siberian platform (SP) the uneven diamond content of various diatremes was established. During the exploration apart from the pipes with high or medium content of a useful component also the diatremes with ...
Nikolay N. Zinchuk, Leonid D. Bardukhinov   +1 more
doaj   +1 more source

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
openaire   +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]

International 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

Radon over Kimberlite Pipes: Surface Field Experiments and Calculations of Vertical Diffusion (Arkhangelsk Diamondiferous Province, NW Russia)

Applied Sciences, 2021
We present the results of field and experimental studies to assess the influence on the formation of the radon field over the kimberlite pipes of the Arkhangelsk diamondiferous province.
Evgeny Yakovlev, Andrey Puchkov
doaj   +1 more source

Radon over Kimberlite Pipes: Estimation of the Emanation Properties of Rocks (Lomonosov Diamond Deposit, NW Russia)

Applied Sciences, 2021
In this paper, using the example of the Lomonosov diamond deposit, experimental studies of rocks were carried out to assess the main radiation and physical factors affecting the formation of the radon field over the kimberlite pipes of the Arkhangelsk ...
Evgeny Yakovlev, Andrey Puchkov
doaj   +1 more source

Syn-eruptive agglutination of kimberlite volcanic ash

Volcanica, 2020
Pyroclastic deposits of the Holocene Igwisi Hills kimberlite volcanoes, Tanzania, preserve unequivocal evidence for rapid, syn-eruptive agglutination.
David Haddock, Shukrani Manya, Richard James Brown, Thomas Jones, Fabian Wadsworth, Kate Dobson, Thomas Gernon   +6 more
doaj   +1 more source

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, Nikolai N. Zinchuk   +1 more
doaj   +1 more source