Results 61 to 70 of about 382 (174)

Melts and fluids evolution in the process of crust and mantle formation in Paleo-Proterozoic (2,2—1,75 Ga ago). Stratigraphy and magnetic activity

Геофизический журнал, 2017
Stratigraphy of metamorphic Precambrian complexes related to Paleo-Proterozoic is controversial. An additional sign permitting to correlate strata may be their material composition because in the Precambrian composition of deep fluids changed regularly.
O. V. Usenko
doaj   +1 more source

MINERALOGY AND ZIRCON AGE OF CARBONATITES OF THE SREDNYAYA ZIMA COMPLEX (EASTERN SAYAN)

Геодинамика и тектонофизика
The Srednyaya Zima alkaline-ultramafic carbonatite complex is located in the Eastern Sayan and is a part of the area of manifestation of Neoproterozoic rare-metal alkaline-carbonatite magmatism along the southern and southeastern margins of the Siberian ...
I. R. Prokopyev, A. G. Doroshkevich, M. D. Varchenko, D. V. Semenova, I. A. Izbrodin, M. N. Kruk   +5 more
doaj   +1 more source

MAGMATIC SOURCES OF THE EVOLVING CONTINENTAL TECTONOSPHERE IN INDIA: GENERATION OF ALKALINE IGNEOUS COMPLEXES WITH CARBONATITES IN THE SAMALPATTI (SOUTHERN INDIA) AND AMBA DONGAR (WESTERN INDIA) MASSIFS

Геодинамика и тектонофизика
Neoproterozoic Samalpatti and Cretaceous-Paleogene Amba Dongar massifs are considered to evaluate the change of sources of carbonatite magmatism in evolving tectonosphere of India. The inherited character of Ba and Sr distribution components is traced in
S. V. Rasskazov, T. A. Yasnygina, K. R. Hari, I. S. Chuvashova, E. V. Saranina   +4 more
doaj   +1 more source

Oxygen–Carbon and Strontium Isotope Composition in Primary Carbonatites of the World: The Data Summary and Linear Trends

Руды и металлы
A statistical regression analysis was performed of a summary of borrowed literary iso- topic data on 176 carbonatite occurrences worldwide (a total of 1829 paired δ18О-δ13С values in primary carbonatites).
Bolonin A. V.
doaj   +1 more source

Carbonatites in skarn objects of the Urals

Литосфера, 2017
The temperature range of the formation of skarns suggests the melting of limestones in the heat-and-mass transfer columns of the Earth’s crust. The ontogenic analysis of structures of the carbonate rocks in some Ural skarn objects indicates the presence ...
V. A. Popov
doaj   +2 more sources

Calcium isotope compositions as a means to trace carbonate recycling. [PDF]

Natl Sci Rev, 2022
Huang S, Jacobsen SB.
europepmc   +1 more source

Assessment of ancylite ore dressability by flotation method

Записки Горного института
For more than 50 years, most rare earth elements were extracted from carbonatite deposits, which can contain different rare earth phases, but the main extracted minerals are bastnaesite, monazite and xenotime.
Galina V. Mitrofanova, Evgenii N. Kozlov, Ekaterina N. Fomina, Elena V. Chernousenko, Aleksei V. Chernyavskii, Natalya O. Dorozhanova   +5 more
doaj  

Petrogenesis of juvenile pelletal lapilli in ultramafic lamprophyres. [PDF]

Sci Rep, 2023
Prokopyev I, Doroshkevich A, Starikova A, Kovalev S, Nugumanova Y, Izokh A.   +5 more
europepmc   +1 more source

Evolution and Involution of Carbonatite Thoughts [PDF]

Elements, 2021
openaire   +2 more sources

Linking deep CO₂ outgassing to cratonic destruction. [PDF]

Natl Sci Rev, 2022
Wang ZX, Liu SA, Li S, Liu D, Liu J.
europepmc   +1 more source