Browsing ELibrary by Author "Fedorenko V.A."

Now showing items 1-9 of 9

A RECONNAISSANCE 40AR 39AR GEOCHRONOLOGIC STUDY OF ORE-BEARING AND RELATED ROCKS, SIBERIAN RUSSIA

Brent Dalrymple G.; Czamanske G.K.; Lanphere M.A.; Fedorenko V.A.; Likhachev A.P.; Simonov O.N. (1995)

age spectra of biotite from a mineralized vein in the ore-bearing, Noril'sk I intrusion and from picritic-like gabbrodolerite from the weakly mineralized, Lower Talnakh intrusion show that these bodies were emplaced at 249 ...
GEOCHEMISTRY OF CARBONATITES OF THE TOMTOR MASSIF

Kravchenko S.M.; Czamanske G.; Fedorenko V.A. (2003)

Carbonatites compose sheet bodies in a 300-m sequence of volcanic lamproites, as well as separate large bodies at depths of >250-300 m. An analysis of new high-precision data on concentrations of major, rare, and rare earth ...
GEOCHEMISTRY OF THE SIBERIAN TRAP OF THE NORILSK AREA, USSR, WITH IMPLICATIONS FOR THE RELATIVE CONTRIBUTIONS OF CRUST AND MANTLE TO FLOOD BASALT MAGMATISM

Lightfoot P.C.; Doherty W.; Naldrett A.J.; Gorbachev N.S.; Fedorenko V.A. (1990)

The sequence investigated of the Siberian Trap at Noril'sk, USSR, consists of at least 45 flows that have been divided into six lava suites. The lower three suites consist of alkalic to subalkalic basalts (the Ivakinsky ...
ISOTOPIC AND TRACE-ELEMENT CONSTRAINTS ON MANTLE AND CRUSTAL CONTRIBUTIONS TO SIBERIAN CONTINENTAL FLOOD BASALTS, NORILSK AREA, SIBERIA

Wooden J.L.; Czamanske G.K.; Bouse R.M.; King B.S.W.; Fedorenko V.A.; Arndt N.T.; Chauvel C.; Knight R.J.; Siems D.F. (1993)

We present a tightly controlled and comprehensive set of analytical data for the 250-Ma Siberian flood-basalt province. Consideration of major- and trace-element compositions, along with strontium, lead and neodymium ...
OSMIUM AND NEODYMIUM ISOTOPIC CONSTRAINTS ON THE TEMPORAL AND SPATIAL EVOLUTION OF SIBERIAN FLOOD BASALT SOURCES

Horan M.F.; Walker R.J.; Fedorenko V.A.; Czamanske G.K. (1995)

High-Mg volcanic rocks from the ca. 250 Ma old Siberian Flood Basalt Province (SFBP) were analyzed for their osmium and neodymium isotopic compositions in order to help to constrain source characteristics as the system ...
RAPID ERUPTION OF SIBERIAN FLOOD-VOLCANIC ROCKS AND EVIDENCE FOR COINCIDENCE WITH THE PERMIAN-TRIASSIC BOUNDARY AND MASS EXTINCTION AT 251 MA

Kamo S.L.; Amelin Y.; Davis D.W.; Czamanske G.K.; Fedorenko V.A.; Trofimov V.R. (2003)

The Siberian flood-volcanic event is the most voluminous and explosive, continental, volcanic event known in the Phanerozoic record. U–Pb perovskite and zircon ages were obtained for lavas of the lowermost unit (251.7±0.4 ...
RE-OS ISOTOPIC EVIDENCE FOR AN ENRICHED-MANTLE SOURCE FOR THE NORILSK-TYPE, ORE-BEARING INTRUSIONS, SIBERIA

Walker R.J.; Krogstad E.J.; Morgan J.W.; Horan M.F.; Czamanske G.K.; Fedorenko V.A.; Kunilov V.E. (1994)

Magmatic Cu-Ni sulfide ores and spatially associated ultramafic and mafic rocks from the Noril'sk I, Talnakh, and Kharaelakh intrusions are examined for Re-Os isotopic systematics. Neodymium and lead isotopic data also are ...
REMOBILISATION OF THE CONTINENTAL LITHOSPHERE BY A MANTLE PLUME: MAJOR-, TRACE-ELEMENT, AND SR-, ND-, AND PB-ISOTOPE EVIDENCE FROM PICRITIC AND THOLEIITIC LAVAS OF THE NORILSK DISTRICT, SIBERIAN TRAP, RUSSIA

Lightfoot P.C.; Hawkesworth C.J.; Hergt J.; Naldrett A.J.; Gorbachev N.S.; Fedorenko V.A.; Doherty W. (1993)

The Late Permian to Early Triassic Siberian Traps have been sampled by drill core (core SG-9) and from surface exposure (section 1F) in the Noril'sk region of the Siberian Platform, Russia. Combined major, trace element, ...
SIDEROPHILE AND CHALCOPHILE METALS AS TRACERS OF THE EVOLUTION OF THE SIBERIAN TRAP IN THE NORILSK REGION, RUSSIA

Brügmann G.E.; Naldrett A.J.; Asif M.; Lightfoot P.C.; Gorbachev N.S.; Fedorenko V.A. (1993)

In this study Cu, Ni, and platinum-group elements (PGE) were determined in a sequence of basaltic and picritic lavas from the Siberian Trap in the Noril'sk area of Russia to constrain genetic relationships between the ...

Browsing ELibrary by Author "Fedorenko V.A."

Browsing ELibrary by Author "Fedorenko V.A."

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