Results 11 to 20 of about 518 (163)

PHOSPHATE-FLUORIDE-CARBONATE MINERALIZATION IN LAMPROITE ROCKS OF THE RYABINOVY PLUTON (CENTRAL ALDAN): MINERALOGICAL AND GEOCHEMICAL FEATURES AND ORIGIN [PDF]

open access: yesМинералогия, 2017
Carbonate and apatite-fluorite mineral assemblages are studied in lamproite rocks from high-K Ryabinovy intrusive (Central Aldan, Russia). It is concluded that these assemblages are genetically related and belong to the same apatite-fluorite-carbonate ...
I.F. Chayka, A.E. Izokh
doaj   +1 more source

Plume genesis of non-kimberlite diamonds

open access: yesЛитосфера, 2015
Calculations shown that a relatively low-temperature kimberlite magmas consolidated with decompression exploded on significant depth and formed pipes.
V. S. Shkodzinskiy
doaj   +3 more sources

Composition of spherules and lower mantle minerals, isotopic and geochemical characteristics of zircon from volcaniclastic facies of the Mriya lamproite pipe

open access: yesЗаписки Горного института, 2020
The article presents the results of studying the rocks of the pyroclastic facies of the Mriya lamproite pipe, located on the Priazovsky block of the Ukrainian shield.
Ivan G. YATSENKO   +4 more
doaj   +3 more sources

Criteries and prospects of diamonds of the Vitebsk granulite massif

open access: yesЖурнал Белорусского государственного университета: География, геология, 2021
The article describes the history of studying the diamond content of tectonic structures of the territory of Belarus. Based on the results of magnetometric, mineralogical, tectonic studies carried out by industrial geologists and scientists over the past
Victor S. Konishchev   +1 more
doaj   +1 more source

Phanerozoic Large Igneous Province, Petroleum System, and Source Rock Links

open access: yesGeophysical Monograph Series, Page 191-228., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Steven C. Bergman   +2 more
wiley  

+1 more source

Prospecting models of primary diamond deposits of the north of the East European Platform

open access: yesЗаписки Горного института, 2022
As a result of a comprehensive study of the geological structure and diamond presense of the northern part of the East European Platform, generalization of the data accumulated by various organizations in the USSR, the Russian Federation, and other ...
Victor N. Ustinov   +2 more
doaj   +1 more source

Lamproite

open access: yes, 2006
R. T. Prider
openaire   +2 more sources

Isotopic ages of Lentiira - Kuhmo - Kostomuksha olivine lamproite - Group II kimberlites [PDF]

open access: yesBulletin of the Geological Society of Finland, 2007
The Lentiira-Kuhmo-Kostomuksha triangle, along the Finland – Russian border and within the central part of the Archean Karelian craton, contains numerous examples of phlogopite-rich, ultramafic, mantle-xenocryst-bearing and, in some cases, diamond ...
H. O'Brien, D. Phillips, R. Spencer
doaj   +1 more source

Phase Diagrams of Carbonate Materials at High Pressures, with Implications for Melting and Carbon Cycling in the Deep Earth

open access: yesGeophysical Monograph Series, Page 137-165., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Konstantin Litasov   +3 more
wiley  

+1 more source

Лампроїт [Lamproit]

open access: yes, 2016
ЛАМПРОЇ́Т – багата калієм і магнієм лапрофірова гірська порода вулканічного або гіпабісального походження. Термін увів 1923 швейцар. мінералог П. Ніґґлі. Зазвичай порода пред­ставлена одним або декількома мінералами: олівіном, клінопіроксеном , титановміс. флогопітом, лейцитом, а... ⚠️ Цей запис містить лише бібліографічні метадані.
Білецький, Володимир Стефанович   +1 more
  +5 more sources

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