Results 31 to 40 of about 657 (209)
Геодинамика и тектонофизика, 2021 The article deals with the fundamental concepts of a new method of interpretation of regional gravimetry (scale 1:1000000) based on the idea of the deformational nature of low-frequency gravity anomalies.
S. M. Makeev
doaj +1 more source
Picroilmenites in Yakutian kimberlites: variations and genetic models [PDF]
Solid Earth, 2014 Major and trace element variations in picroilmenites from Late Devonian kimberlite pipes in Siberia reveal similarities within the region in general, but show individual features for ilmenites from different fields and pipes.
I. V. Ashchepkov +11 more
doaj +1 more source
Thermal history of diamond from Arkhangelskaya and Karpinsky-I kimberlite pipes
Записки Горного института, 2022 This work studies and compares the main morphological, structural, and mineralogical features of 350 diamond crystals from the Karpinsky-I and 300 crystals of the Arkhangelskaya kimberlite pipes.
Evgeny A. Vasilev +2 more
doaj +1 more source
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
doaj +1 more source
Review of the spatial distribution of kimberlite pipes in the tectonic structures of the world
Geo&BioKimberlite pipes are vertical or inclined cylindrical or cone-shaped bodies filled with kimberlite, an ultramafic igneous rock. The diameter of kimberlite pipes can vary from a few metres to 1.5 km, and their depth reaches several kilometres.
Andrii Luniachek
doaj +1 more source
Геодинамика и тектонофизика, 2016 The paper presents the results of comprehensive study of the primary diamond deposit of the Nyurbinskaya pipe in the Yakutian diamondiferous province. It is established, that the pipe is confined to the fault junction of four directions and is composed ...
A. S. Gladkov +6 more
doaj +1 more source
, 2021 Kimberlites are the deepest mantle magmas to reach the surface of the Earth and the hosts of the major primary diamond deposits. The enigmatic nature of kimberlites owing to poorly constrained triggers of kimberlite magmatism, melt composition, and ...
Chow, Richard
core
Comparative characteristics of diamonds from areas with a high density of kimberlite bodies
Известия высших учебных заведений: Геология и разведка, 2023 Background. This paper presents a comparative study into diamonds from kimberlite bodies of the Verkhnemunsky field (Zapolyarnaya, Novinka, Komsomolskaya-Magnitnaya and Poiskovaya), the results of which allow these minerals to be distinguished from those
N. N. Zinchuk, V. I. Koptil
doaj +1 more source
Typomorphic features of diamonds from ancient sedimentary thick layers of platforms’ central parts
Мінеральні ресурси України, 2020 Basing on generalization of large actual material on complex investigation of diamond its characteristic in Upper Paleozoic and Mesozoic sedimentary thick layers of the Siberian platform is provided.
M. M. Zinchuk
doaj +1 more source
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
doaj +1 more source