Results 1 to 10 of about 86 (81)

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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IDENTIFICATION OF POTENTIAL ZONES FOR KIMBERLITE EXPLORATION – AN EARTH OBSERVATION APPROACH [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
In the present study, we have prepared the thematic evidence layers for identifying the potential zones of kimberlite emplacement in parts of Chhatarpur district, Madhya Pradesh.
A. Guha, K. Rani, C. B. Varma, N. K. Sarwate, N. Sharma, A. Mukherjee, K. V. Kumar, S. K. Pal, A. K. Saw, S. K. Jha   +9 more
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Petrology and geochemistry of the diamondiferous Jamnidih occurrence, Bastar Craton, Central India: Metabasalt and not a kimberlite

Geosystems and Geoenvironment, 2022
We have re-visited the ‘diamondiferous kimberlite’ from the Jamnidih area of Mahasamund, Bastar Craton, Central India. This study presents detailed field observations, petrographic and geochemical studies of Jamnidih rocks in view of the reported ...
Mahendra Kumar Singh, Rohit Pandey, Abhinay Sharma, N.V. Chalapathi Rao   +3 more
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THE FEATURES OF THE INDICATOR MINERALS OF KIMBERLITES IN A NEW PIPE YANVARSKAJA (WESTERN YAKUTIA)

Известия высших учебных заведений: Геология и разведка, 2017
The first results of the mineral-petrographic studies of microclastes of kimberlites from the basal horizon of the Upper Paleozoic deposits of the Alakit-Markhinsky kimberlite field (Western Yakutia) have been presented.
D. V. Ivanov, V. V. Ivanov, A. V. Tolstov   +2 more
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Comparative characteristics of indicator minerals of kimberlites and new perspectives diamond of the Ygyatta diamondiferous region (Western Yakutia)

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, M. V. Maltsev, A. V. Tolstov   +2 more
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Diamonds from the Santo Antônio River (Delfinópolis, Minas Gerais): probable relationship with the Canastra-3 Kimberlite

REM: International Engineering Journal, 2019
The study identifies the Canastra-3 Kimberlite magnetic anomaly as the likely primary source of the alluvial diamonds recovered by "garimpeiros" in the Santo Antônio River basin (Delfinópolis, southwestern Minas Gerais).
Mario Luiz de Sá C. Chaves, João Paulo de Paula Caldas, Kerley Wanderson Andrade, Maria Sílvia Carvalho Barbosa   +3 more
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On the problem of transportability of kimberlite minerals relative to their source: The case of pyrope and picroilmenite

Руды и металлы
Data on transportability of kimberlite minerals with increasing distance from their primary source are presented. It is argued that the degree of mechanical processing of kimberlite indicator mineral grains is the most reliable criterion for determining ...
Aleksandr Mikhailovich Khmelkov, Elvira Aleksandrovna Chuguevskaya   +1 more
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The principal morphogenetic characteristics of kimberlite indicator minerals

Руды и металлы
The article provides information on the morphology and morphogenesis of minerals from kimberlites and their scattering halos. The principal morphogenetic characteristics of the main kimberlite indicator minerals are discussed in detail.
Khmelkov A. M., Chuguevskaya E. A.
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Estimation of fractionation of minerals using geoinformation systems in engineering and geological prospecting

Технічна інженерія
The article discusses the use of geographic information systems in the study of kimberlite deposits in order to establish diamondiferous content based on indicator minerals, in particular olivine.
N.V. Zuievska, T.V. Kosenko, E. Shukurlu, V.V. Korobiichuk   +3 more
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Mineralogy of garnets from the Jubileinaya kimberlite pipe and Ottorzhenets kimberlite body

Руды и металлы
The article presents results of a study of the chemical composition of garnet xenocrystals from a concentrate of the heavy fraction of kimberlites from the Yubileinaya pipe and Ottorzhenets kimberlite body.
Milaushkin M. V., Mal’kovets V. G., Gibsher A. A., Yakovlev I. V., Tychkov N. S.   +4 more
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