Browsing by Author "Vetrin V.R."

AGE OF MANTLE METASOMATISM AND FORMATION OF THE KOLA PALEOZOIC ALKALINE PROVINCE

Vetrin V.R.; Kamensky I.L.; Ikorsky S.V. (2003)

GEOCHEMISTRY AND RECONSTRUCTION OF THE PROTOLITH COMPOSITION OF THE BASEMENT OF THE PECHENGA PALEORIFT

Vetrin V.R.; Delenitsyn A.A.; Turkina O.M.; Ludden J. (2003)

The basement of the Early Proterozoic Pechenga paleorift was penetrated by the Kola Superdeep Borehole at depths from 6842-12261 m. The main types of basement rocks are gneisses of dacite-plagiorhyodacite (tonalite-trondhjemite) ...

JUVENILE HELIUM IN ANCIENT ROCKS: I. THE EXCESS IN AMPHIBOLES FROM 2.8 GA CHARNOCKITE SERIES-CRUST-MANTLE FLUID IN INTRACRUSTAL MAGMATIC PROCESSES

Kamensky I.L.; Tolstikhin I.N.; Vetrin V.R. (1990)

The 3He/4He in materials derived from the mantle is decreasing in the course of time and approaches the radiogenic value during {approx equal} 1 Ga. Some minerals, however, trapped volatiles, including He, and preserve ...

JUVENILE HELIUM IN ARCHEAN ENDERBITES AND ALKALINE GRANITES OF THE KOLA PENINSULA

Vetrin V.R.; Kamenskii I.L.; Ikorskii S.V.; Gannibal M.A. (2003)

The He isotopic composition was studied in Archean enderbites, aluminous gneisses, and alkaline granites of the Kola Peninsula. It was shown that enderbites formed after intrusive protoliths during their granalite metamorphism ...

MANTLE COMPONENT IN PROTEROZOIC GRANITOIDS: EVIDENCE FROM HE ISOTOPES IN ROCKS AND MINERALS

Vetrin V.R.; Kamensky I.L.; Ikorsky S.V. (2001)

MANTLE FLUID IN PROTEROZOIC GRANITOIDS: HE AND AR ISOTOPES IN ROCKS AND MINERALS OF THE LITZA-ARAGUBA DIORITE-GRANITE COMPLEX, KOLA PENINSULA

Vetrin V.R.; Kamensky I.L.; Ikorsky S.V. (2002)

The isotopic composition of He and Ar was analyzed in rocks and minerals from the Early Protero-zoic Litza-Araguba diorite-granite complex in the northwestern part of the Kola Peninsula. The initial 4He/3He ratio of the ...

MINERALOGY AND GEOCHEMISTRY OF DEVONIAN ULTRAMAFIC MINOR INTRUSIONS OF THE SOUTHERN KOLA PENINSULA, RUSSIA: IMPLICATIONS FOR THE PETROGENESIS OF KIMBERLITES AND MELILITITES

Beard A.D.; Downes H.; Hegner E.; Sablukov S.M.; Vetrin V.R.; Balogh K. (1998)

Minor magmatic intrusions of kimberlite, melilitite and cpx-melilitite occur in the southern part of the Kola Peninsula, Russia, on the Terskii Coast and near the town of Kandalaksha. They yield K-Ar ages of 382 ± 14 Ma ...

ND, SM, AND HE ISOTOPES IN GRAY GNEISSES: CONSTRAINTS ON THE FORMATION OF PRIMARY MELTS

Vetrin V.R.; Kamenskiǐ I.L.; Delenitsin A.A.; Ikorskiǐ S.V. (2004)

PETROLOGY AND GEOCHEMISTRY OF ROCKS FROM THE BASEMENT OF THE PECHENGA PALEORIFT

Vetrin V.R.; Turkina O.M.; Ludden J. (2002)

The basement of the Early Proterozoic Pechenga paleorift was penetrated by the Kola Superdeep Borehole over a depth interval of 6842-12,261 m. The principal types of basement rocks are gneisses of trondhjemite-tonalite ...

PROTEROZOIC MANTLE-CRUST INTERACTION IN THE ARCHEAN BASEMENT OF THE PECHENGA PALEORIFT

Vetrin V.R.; Delenitsin A.A. (2003)

RARE GAS ISOTOPES AND PARENT TRACE ELEMENTS IN ULTRABASIC-ALKALINE-CARBONATITE COMPLEXES, KOLA PENINSULA: IDENTIFICATION OF LOWER MANTLE PLUME COMPONENT

Tolstikhin I.N.; Kamensky I.L.; Nivin V.A.; Vetrin V.R.; Balaganskaya E.G.; Ikorsky S.V.; Gannibal M.A.; Marty B.; Weiss D.; Verhulst A.; Demaiffe D. (2002)

During the Devonian magmatism (370 Ma ago) ∼20 ultrabasic-alkaline-carbonatite complexes (UACC) were formed in the Kola Peninsula (north-east of the Baltic Shield). In order to understand mantle and crust sources and ...

TWO TYPES OF LOWER CONTINENTAL CRUST IN THE NORTHERN BALTIC SHIELD

Vetrin V.R. (2001)

Browsing by Author "Vetrin V.R."

Browsing by Author "Vetrin V.R."

Search DSpace

Browse

All of DSpace

My Account