Results 41 to 50 of about 5,988 (208)
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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Kimberlite Volcanology: Transport, Ascent, and Eruption [PDF]
, 2019 Kimberlite rocks and deposits are the eruption products of volatile-rich, silica-poor ultrabasic magmas that originate as small-degree mantle melts at depths in excess of 200 km.
Kavanagh, Janine +2 more
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Известия высших учебных заведений: Геология и разведка, 2019 The new data on the composition of kimberlite indicator minerals (KIM) — pyropes and picroilmenites — of the first kimberlite body T-54-14, opened in 2015 in the Syuldyukar kimberlite field by the geologists of ALROSA PJSC, during the verification of the
T. S. Starkova +2 more
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XENOLITHS OF POLYMICTIC BRECCIAS FROM KIMBERLITES OF THE YAKUTIAN DIAMONDIFEROUS PROVINCE
Геодинамика и тектонофизика, 2022 The polymictic breccias, extremely rare mantle conglomerates being the fragments of rocks and large mantle minerals cemented with fine-grained mass have been long provoking interest of petrologists worldwide.
L. N. Pokhilenko +2 more
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Meteoritics &Planetary Science, EarlyView.Abstract The framework of the Impact Cratering Committee (ICC) of the Meteoritical Society was approved in 2020, with the first committee members appointed in 2023. The ICC has a mandate to (1) approve, maintain, and update a database of confirmed terrestrial meteorite impact structures, (2) define and regularly update the criteria used for ...
A. J. Cavosie +11 more
wiley +1 more source
, 2008 The paper presents data on petrology, bulk rock and mineral compositions, and textural classification of the Middle Jurassic Jericho kimberlite (Slave craton, Canada). The kimberlite was emplaced as three steep-sided pipes in granite that was overlain by
Hayman, Patrick, Kopylova, Maya G.
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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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, 2011 The Jurassic Muskox and Jericho kimberlites (Northern Slave Province, Nunavut, Canada) contain a variety of facies exhibiting different geometries, contact relationships, internal organisation, country rock abundance and olivine shapes, although many ...
Cas, R.A.F. +3 more
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Mathematical methods of search for diamond-bearing areas and kimberlite fields in closed territories
Мінеральні ресурси України, 2018 Based on the analysis of the interrelationships between real kimberlite fields and the location of kimberlite tubes of the world, a structural and mathematical method for the search for diamond-bearing regions and kimberlite fields is proposed.
Sh. K. Magazov
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Kimberlites Identification by Classification Methods [PDF]
, 2007 Kimberlites identification is a very important task for diamond mining. In traditional way, geologists draw upon past experience to do this work. Whether the bedrock should be drilled depends on their analysis of rock samples. This method has two disadvantages.
Yaohui Chai +4 more
openaire +3 more sources