Results 111 to 120 of about 657 (209)
Мінеральні ресурси України, 2015 Carried out analysis of the material on diamondiferousness of the Siberian platform allows affirming that in spite of the large volume of the obtained for more than half a century period actual material there is a number of problem issues decision of ...
M. M. Zinchuk
doaj
On the welding of pyroclasts from very low-viscosity magmas: Examples from kimberlite volcanoes
, 2008 Lithofacies in kimberlite pipes in southern Africa exhibit features consistent with welded pyroclastic rocks. These include flared conduit-filling geometries, abundant lithic clasts, lithic clast layers, subhorizontal clast fabrics, gradational contacts ...
Sparks, RSJ +3 more
core +1 more source
, 2020 The Du Toitspan kimberlite pipe located on the outskirts of Kimberley South Africa, is one four Cretaceous aged major kimberlite pipes from the well-known Kimberley cluster, the type locality for archetypal group I kimberlites.
Ramokgaba, Lesego
core
The emplacement of class 1 kimberlites: part 2, petrographic evidence
, 2006 This paper has been prepared specifically for the September 2006, Kimberlite Emplacement Workshop, Saskatoon, Canada. To this end, emphasis is placed on a big bang/ bottom-up model for the emplacement of Class 1 kimberlite pipes first presented by ...
Marsh, Julian S, Skinner, E M W
core
Diamondiferous kimberlite in Saskatchewan, Canada - a biogeochemical study
, 1993 Kimberlite was first reported in Saskatchewan in 1988. Subsequently, more kimberlite pipes have been discovered and the total diamond yield is now 160, of which some are macro-diamonds of gem quality.
Dunn, Colin E.
core +1 more source
The emplacement of class 1 kimberlites: part 1, evidence of geological features
, 2006 This paper has been prepared specifically for the September 2006, Kimberlite Emplacement Workshop, Saskatoon, Canada. To this end, emphasis is placed on a big bang/ bottom-up model for the emplacement of Class 1 kimbertite pipes first presented by ...
Marsh, Julian S, Skinner, E M W
core +1 more source
Kimberlite ash: Fact or fiction
, 2012 Kimberlite pipes represent the conduits and vents of eroded volcanoes and are commonly filled with both coherent and volcaniclastic kimberlite including pyroclastic deposits, resulting from explosive volcanic eruptions.
Porritt, L. A. +3 more
core +1 more source
A XENOLITH-BASED LITHOSPHERIC TRANSECT OF THE SLAVE CRATON, N.W.T., CANADA [PDF]
, 2012 During the last decade, the Canadian Slave craton has emerged as an important global diamond resource. Recent work on the sub-continental lithospheric mantle (SCLM) beneath this craton has yielded tantalising suggestions about its structure and ...
MATHER, KATHLEEN,ANN
core
Kimberlite metasomatism at Murowa and Sese pipes, Zimbabwe
The Cambrian-aged Murowa and Sese kimberlites are located within the Archean Zimbabwe Craton just N of the boundary with the Limpopo Mobile Zone. The root zones of pipes are exposed at the current erosion level.
Chimuka, L. +4 more
core
Three Dimensional Inversion of Magnetic Survey Data Collected Over Kimberlite Pipes in Presence of Remanent Magnetization [PDF]
, 2012 RÉSUMÉ: La méthode magnétique est une technique géophysique couramment utilisée pour explorer les kimberlites. L'analyse et l'interprétation des données magnétiques fournissent les informations des propriétés magnétiques et géométriques des cheminées de ...
Zhao, Pengzhi
core