Геология России: Recent submissions

Now showing items 241-260 of 41010

PHYSICOCHEMICAL MODEL FOR THE GENESIS OF SVECOFENNIAN PLAGIOMIGMATITES OF THE BELOMORIAN COMPLEX, NORTHERN KARELIA

Kozlovskii V.M. (2006)

A mechanism is proposed to explain the genesis of biotite-quartz-feldspar plagiomigmatite leucosomes as a consequence of the reaction of an amphibolite protolith with ascending fluid. The model is based on the analysis of ...
PETROGENESIS OF AUTOLITHS FROM KIMBERLITIC BRECCIAS IN THE V. GRIB PIPE (ARKHANGELSK DISTRICT)

Golubeva Yu.Yu.; Pervov V.A.; Kononova V.A. (2006)

Kimberlitic diatremes are primarily composed of autolithic kimberlitic breccia. The name of this variety of kimberlitic rocks is related to the specific distribution of autoliths in the matrix. Autoliths are prominent ...
LATE RIPHEAN PLAGIOGRANITES OF KUZNETSKII ALATAU: COMPOSITION, AGE, AND SOURCES

Rudnev S.N.; Matukov D.I.; Sergeev S.A.; Serov P.A. (2006)

The geological–petrographic, petrogeochemical, geochronological, and isotopic–geochemical data obtained during recent decades in Kuznetskii Alatau and Gornaya Shoria on igneous rocks confined to Early Caledonian structures ...
COLLISIONAL METAMORPHISM AS A RESULT OF THRUSTING IN THE TRANSANGARA REGION OF THE YENISEI RIDGE

Likhanov I.I.; Popov N.V.; Reverdatto V.V.; Vershinin A.E.; Kozlov P.S. (2006)

The Yenisei Ridge is one of the most interesting regions in the southwestern folded framework of the Siberian Craton with respect to geodynamics. The regional structure of the Transangara sector of the Yenisei Ridge is ...
STRUCTURAL FEATURES OF THE EARTH'S CRUST AND PETROLEUM POTENTIAL: FIRST RESULTS OF CMP DEEP SEISMIC SURVEY ALONG THE GEOTRAVERSE ACROSS THE VOLGA-URAL PETROLIFEROUS PROVINCE

Trofimov V.A. (2006)

Deep CMP seismic surveys carried out in petroliferous regions of Tatarstan (since 1993) and other regions of the Volga–Ural petroliferous province in the later period revealed that time sections of large oil fields are ...
PARAMETERS OF NATIVE SILVER FORMATION IN THE AG-FE-S SYSTEM BASED ON THE EMF DETERMINATION AT 518-728 K AND 1-5000 BAR TOTAL PRESSURE

Chareev D.A.; Bortnikov N.S.; Osadchii E.G.; Shapovalov Yu.B.; Zhdanov N.N. (2006)

The phase relations in the Ag–Fe–S system have been studied with the method of solid-phase annealing at the pressure of natural vapor. The metallic silver–pyrite assemblage is stable below 521 ± 8 K. At a higher temperature, ...
MAGMATISM OF THE KHAMBIN GRABEN AND EARLY HISTORY OF THE LATE MESOZOIC RIFT SYSTEM FORMATION IN THE WESTERN TRANSBAIKAL REGION

Vorontsov A.A.; Andryushchenko S.V.; Dril S.I.; Kuz'min M.I.; Yarmolyuk V.V. (2006)

The western Transbaikal region was repeatedly subjected to rifting during the Mesozoic. The Early Mesozoic was marked by the formation of a system of grabens filled in with Late Triassic–Early Jurassic bimodal volcanic ...
HIGH DEGREE OF CATIONIC ORDERING IN THE STRUCTURE OF A NEW MINERAL OF THE LABUNTSOVITE GROUP

Zolotarev Jr.A.A.; Krivovichev S.V.; Yakovenchuk V.N.; Pakhomovsky Ya.A.; Organova N.I.; Armbruster T. (2006)

In recent years, minerals of the labuntsovite group (hereafter, LG) have become objects of many detailed mineralogical and crystallochemical studies stimulated by numerous findings of these minerals and the diversity of ...
ELECTRIC CURRENTS OF SALTATION IN WINDSAND FLUX

Gorchakov G.I.; Kopeikin V.M.; Isakov A.A.; Karpov A.V.; Ul'yanenko A.V.; Ermakov V.I. (2006)

Electric currents in the surface atmospheric layer in desertized areas were measured for the first time. At wind velocities equal to 5–7 m/s, the density of electric current due to saltation of sand grains at a height of ...
RECENT VOLCANISM OF NORTHERN EURASIA: REGIONALIZATION AND FORMATION SETTINGS

Laverov N.P.; Kovalenko V.I.; Yarmolyuk V.V.; Bogatikov O.A.; Sakhno V.G.; Gurbanov A.G.; Kudryashova E.A.; Akinin V.V.; Evdokimov A.N.; Pevzner M.M.; Ponomareva V.V. (2006)

In the framework of studies under the “Variations of Environment and Climate: Natural Disasters” program of the Presidium of the Russian Academy of Sciences, we compiled the map of recent volcanism of northern Eurasia on ...
THERMOBAROMETRY OF ORDINARY CHONDRITES

Zinovieva N.G.; Pletchov P.Yu.; Latyshev N.P.; Granovsky L.B. (2006)

Ordinary chondrites are the most abundant type of meteorites. However, their genetic interpretation, accepted in modern literature and based on independent investigations of the formation of droplike silicate chondrules ...
CHALCOPHILE ELEMENTS (HG, CD, PB, AND AS) IN BOTTOM SEDIMENTS OF WATER BODIES OF THE WHITE SEA CATCHMENT AREA ON THE KOLA PENINSULA

Dauvalter V.A. (2006)

The north of European Russia including the Murmansk Region contains unique mineral resources. Many mining, processing, and smelting enterprises, the largest in Russia, are situated in the Murmansk Region, recovering annually ...
ENDOGENIC CLASTITES AND THEIR ROLE IN THE FORMATION OF PETROLEUM POOLS IN THE SOUTHERN SIBERIAN CRATON

Sizykh V.I. (2006)

We studied endogenic clastites in the course of documentation of deep oil- and gas-prospecting boreholes during tunneling in the Baikal, Kodar, Northern Muya areas and in basal members of the sedimentary cover of the ...
FIRST EVIDENCE FOR CONCENTRATIONS OF TRANSURANIUM CURIUM IN THE YENISEI FLOODPLAIN ECOSYSTEM

Bolsunovsky A.Ya.; Ermakov A.I.; Sobolev A.I.; Degermendzhi A.G. (2006)

The long-term activity of the Mining–Chemical Plant (MCP) of the Federal Agency for the Atomic Energy of the Russian Federation (Rosatom) in Zheleznogorsk, Krasnoyarsk region resulted in pollution of the Yenisei River. The ...
NOBLE METALS IN RECENT AND ANCIENT PHOSPHORITES

Baturin G.N.; Asavin A.M.; Kolesov G.M. (2006)

Noble metals (except Ag) in phosphorites are less studied than many other rare and trace elements. High Ag contents (4 g/t) were first reported from Missourian (Carboniferous) phosphorites in Alaska. Subsequently, different ...
POLYFACIES MODE OF IGNEOUS ROCKS AND METEORITES

Marakushev A.A.; Zinovieva N.G.; Granovsky L.B. (2006)

The polyfacies mode of rocks and meteorites is related to their formation in several stages, which strongly differ in PT conditions. The polyfacies mode appears in igneous rocks during crystallization of magma owing to ...
NEW DATA ON INVISIBLE GOLD IN DISSEMINATED SULFIDE ORES OF THE NATALKA DEPOSIT

Volkov A.V.; Genkin A.D.; Goncharov V.I. (2006)

The issue of invisible gold in deposits has a great scientific and applied significance. The study of the nature and occurrence mode of gold makes it possible to elucidate ore formation conditions. The majority of large ...
SENSITIVITY OF THE IFA RAN GLOBAL CLIMATIC MODEL WITH AN INTERACTIVE CARBON CYCLE TO ANTHROPOGENIC INFLUENCE

Mokhov I.I.; Eliseev A.V.; Karpenko A.A. (2006)

The estimates of the sensitivity of the IFA RAN Global Climatic Model with an interactive carbon cycle to anthropogenic influence were obtained. In the numerical calculations using the IFA RAN model, anthropogenic emission ...
NEW AGE DATA ON PRECAMBRIAN VOLCANIC ROCKS OF THE KHAKDON GROUP, EASTERN KOLYMA REGION

Khudoley A.K.; Tkachenko V.I.; Matukov D.I.; Berezhnaya N.G.; Sergeev S.A. (2006)

The Riphean sections of the Kolyma terrane have been studied by different authors for many years. However, the absence of reliable geochronological dates, complex pattern of tectonic setting, and low degree of exposure led ...
DEGREE OF THERMAL IMPACT ON THE PERIPHERY OF THE SIBERIAN CRATON IN THE PHANEROZOIC

Letnikov F.A.; Krasil'nikova E.E.; Kostitsyn Yu.A.; Mishina E.I. (2006)

The crystalline basement of the Siberian Craton is exposed as fragments in the Sharyzhalgai inlier, which is separated by the Main Sayan fault from Paleozoic rocks of the Slyudyanka crystalline complex and is bounded by ...

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