Results 71 to 80 of about 2,508 (202)

The effect of temperature and pressure on the distribution of iron group elements between metal and olivine phases in the process of differentiation of protoplanetary material [PDF]

The distribution patterns of Ni, Co, Mn, and Cr were studied in olivines of various origins: from meteorites (chondrites, achondrites, pallasites), which are likely analogs of the protoplanetary material, to peridotite inclusions in kimberlite pipes ...
Ilyin, N. P., Kolomeytsava, L. N., Vinogradov, A. P.   +2 more
core   +1 more source

Theoretical petrology [PDF]

, 1979
The central issues in petrology have remained remarkably unchanged in the last 50 years. In igneous petrology, the focus is on understanding the nature and cause of diversity in igneous rocks: on identifying primary magma types and constraints on the ...
Stolper, Edward
core   +1 more source

The Deep Structure of the Kimberlite Pipe Volchya in the Arkhangelsk Diamond Province and Controlling Faults Based on Passive Seismic and Radiological Methods (Northwest Russia)

Applied Sciences
The successful prospecting of kimberlite pipes is dependent upon a comprehensive understanding of the deep structures of the pipes and the host geological formation. This is a challenging task, given the complex nature of diamond deposits, the small size
Konstantin Danilov, Evgeny Yakovlev, Andrey Puchkov, Vladimir Bykov, Alexander Katorin   +4 more
doaj   +1 more source

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
doaj   +1 more source

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

RUDN 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  

A REE-in-garnet–clinopyroxene thermobarometer for eclogites, granulites and garnet peridotites [PDF]

, 2014
Author Posting. © The Author(s), 2014. This is the author's version of the work. It is posted here by permission of Elsevier for personal use, not for redistribution.
Liang, Yan, Sun, Chenguang
core   +1 more source

MANTLE TERRANES OF THE SIBERIAN CRATON: THEIR INTERACTION WITH PLUME MELTS BASED ON THERMOBAROMETRY AND GEOCHEMISTRY OF MANTLE XENOCRYSTS

Геодинамика и тектонофизика, 2019
We have studied variations in the structure and composition of minerals from the pipes of the Yakutian kimberlite province (YKP) in different mantle terranes of the Siberian craton.
I. V. Ashchepkov, A. S. Ivanov, S. I. Kostrovitsky, M. A. Vavilov, S. A. Babushkina, N. V. Vladykin, N. S. Tychkov, N. S. Medvedev   +7 more
doaj   +1 more source

DNA sequencing, microbial indicators, and the discovery of buried kimberlites. [PDF]

Commun Earth Environ, 2023
Simister RL, Iulianella Phillips BP, Wickham AP, Cayer EM, Hart CJR, Winterburn PA, Crowe SA.   +6 more
europepmc   +1 more source

Hetero-ore-bearing regional permeable zones in the plate complex of the East Siberian platform

Руды и металлы
The article considers hetero-ore-bearing regional permeable zones identified by the author in rocks of the plate complex of the East Siberian Platform. A geological and genetic model of these ore-bearing zones is proposed.
Molchanov A. V
doaj   +1 more source

Thermal State and Thickness of the Lithospheric Mantle Beneath the Northern East-European Platform: Evidence from Clinopyroxene Xenocrysts in Kimberlite Pipes from the Arkhangelsk Region (NW Russia) and Its Applications in Diamond Exploration

Geosciences
This paper presents the reconstruction of the architecture of the lithospheric mantle, including its thermal state and thickness, as well as the scale and efficiency of its sampling by four kimberlites from the Arkhangelsk diamondiferous province ...
Elena Agasheva, Alyona Gudimova, Elena Malygina, Alexey Agashev, Alexey Ragozin, Elena Murav’eva, Anna Dymshits   +6 more
doaj   +1 more source