Results 71 to 80 of about 3,348 (162)

The Renard 65 kimberlites : emplacement-related processes in Kimberley-type pyroclastic kimberlites

, 2017
The Renard 65 pipe is located in the Otish Mountains, Quebec, Canada. It is one of nine diamondiferous kimberlite pipes in the ~ 640 Ma Renard cluster and is the largest of four pipes in the Renard Mine reserve.
Gaudet, Matthew A.
core   +1 more source

The Characteristics and Species Identification of Garnets Hosted in the Kimberlites from Wafangdian, Liaoning Province

Yankuang ceshi, 2013
The garnets in the kimberlites of the Wafangdian diamond mining area from Liaoning province have previously been identified as pyrope. In order to define the types of the complicated color garnets in Wafangdian, a systematic sampling and analysis of the ...
CHI Guang-cheng, LI Guo-wu, XIAO Gang, CHEN Ying-fei, WU Yue, WANG Yin-fu, HU Jian-fei   +6 more
doaj  

Geochemistry of selected South African group I, group II and transitional kimberlites located on and off the Kaapvaal craton

, 2004
Includes bibliographical references.Eighteen Jurassic to Cretaceous South African kimberlites representative of group 1, group 11 and transitional varieties that have been emplaced through both the Archean Kaapvall craton (on-craton) and Proterozoic ...
Coetzee, Megan
core   +1 more source

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
doaj   +1 more source

Density inhomogeneity of the earth's crust along the latitudinal zones of the faults of the Ukrainian shield and the Dnieper-Donets basin

Геофизический журнал, 2012
Characteristic of density distribution along latitudinal fault zones and estimated profiles has been given. Possibility has been found of north-south inclination of each of latitudinal fault zones.
V. I. Starostenko, P. Ya. Kuprienko, I. B. Makarenko, O.V. Legostaeva, A.S. Savchenko   +4 more
doaj   +1 more source

Investigating the relationship between kimberlites and large low shear velocity provinces over the African continent [PDF]

Master of ScienceDepartment of GeologyClaudia AdamKimberlites are relatively rare ultramafic igneous rocks commonly emplaced on Archean cratons. They are widely distributed, and several hypotheses have been proposed to explain their emplacement.
Nechi, Vivian Onyinye
core  

A contribution to the petrology of kimberlites [PDF]

, 2013
The petrogenetic relationships of the different varieties of kimberlite in the De Beers Mine and Letseng-Ia-terai composite diatremes have been investigated using petrographic and chemical methods.
Kruger, Floris Johan
core  

The origin and evolution of North American kimberlites

, 2009
Recent discoveries of kimberlites in North America have revealed that different processes are involved in the generation of kimberlite magma. A multi-disciplinary approach combining mineralogical, petrological, geochemical, and geochronological methods ...
Zurevinski, Shannon
core   +1 more source

About primary diamondiferousness of ancient platforms

Мінеральні ресурси України, 2016
As a result of carried out research and summary of the materials on specific features of diamonds, on the example of the Siberian platform, conclusions were made that indications exist at all levels of their location: from kimberlite – provinces, sub ...
M. M. Zinchuk, V. I. Koptil
doaj  

Petrophysical characteristics of diatreme-facies kimberlites from Kirkland Lake, Ontario

, 1996
Electrical resistivity (rho-r), effective porosity (phi-E) and bulk density (delta-B) have been measured on nine diatreme-facies kimberlite samples and six limestone samples from the Kirkland Lake area.
N Scromeda, M B McClenaghan, T J Katsube
core   +1 more source