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CARBON, OXYGEN, STRONTIUM, AND SULFUR ISOTOPIC COMPOSITIONS IN LATE PRECAMBRIAN ROCKS OF THE PATOM COMPLEX, CENTRAL SIBERIA: COMMUNICATION 1. RESULTS, ISOTOPE STRATIGRAPHY, AND DATING PROBLEMS

Pokrovskii B.G.; Bujakaite M.I.; Melezhik V.A. (2006)

Results of the study of isotopic compositions of C, O, S, and Sr in late Precambrian sections of the Patom Complex and its analogues are presented. Total scatter in δ13C values is more than 21% (from -13.5 to 8.1). The ...
SUBMARINE HYDROTHERMAL ACTIVITY AND MINERALIZATION ON THE KURILE AND WESTERN ALEUTIAN ISLAND ARCS, N.W. PACIFIC

Glasby G.P.; Cherkashov G.A.; Slovtsov I.B.; Gavrilenko G.M.; Rashidov V.A. (2006)

The Kurile Arc consists of at least 100 submarine volcanoes and 5 submarine caldera located mainly in the rear arc. The arc is seismically very active, particularly in the south, and is characterized by extensive volcanism ...
MINERALOGICAL AND CHEMICAL TRANSFORMATION OF OLDOINYO LENGAI NATROCARBONATITES, TANZANIA

Zaitsev A.N.; Keller J. (2006)

The minerals of Oldoinyo Lengai natrocarbonatite lavas are unstable under atmospheric conditions. Subsolidus mineral assemblages in natrocarbonatites were studied in 105 samples from contemporary eruptions ranging from ...
THE RATE OF SMALL IMPACTS ON EARTH

Bland P.A.; Artemieva N.A. (2006)

Asteroids tens to hundreds of meters in diameter constitute the most immediate impact hazard to human populations, yet the rate at which they arrive at Earth's surface is poorly known. Astronomic observations are still ...
MOHO DEPTH AND THREE-DIMENSIONAL P AND S STRUCTURE OF THE CRUST AND UPPERMOST MANTLE IN THE EASTERN MEDITERRANEAN AND MIDDLE EAST DERIVED FROM TOMOGRAPHIC INVERSION OF LOCAL ISC DATA

Koulakov I.; Sobolev S.V. (2006)

~82 000 P and S arrival times from ~3000 sources recorded by ~250 seismic stations from the revised ISC catalogue are employed to study a circular area of 6. radius centred on the Dead Sea.We use the linearized tomographic ...
COUNTER-CLOCKWISE ROTATION OF THE EASTERN PART OF THE MONGOLIA BLOCK: EARLY CRETACEOUS PALAEOMAGNETIC RESULTS FROM BIKIN, FAR EASTERN RUSSIA

Otofuji Y.-I.; Takaba K.; Takemoto K.; Narumoto K.; Zaman H.; Miura D.; Inokuchi H.; Kulinich R.G.; Zimin P.S.; Sakhno V.G. (2006)

We present palaeomagnetic results from Lower Cretaceous rocks in Bikin area of the Alchan basin (46.5°N, 134.7°E), Sikhote Alin orogenic belt, Far Eastern Russia. A high-temperature magnetization component with maximum ...
EFFECT OF SELENIUM ON SILVER TRANSPORT AND PRECIPITATION BY HYDROTHERMAL SOLUTIONS: THERMODYNAMIC DESCRIPTION OF THE AG-SE-S-CL-O-H SYSTEM

Akinfiev N.N.; Tagirov B.R. (2006)

An internally consistent thermodynamic database has been compiled for the Ag-Se (-II, 0, +IV)-S (-II, +VI)-Cl-O-H system on the basis of published experimental data. This database is fit for predicting the chemical properties ...
LATE MIOCENE FISH OTOLITHS FROM THE COLOMBACCI FORMATION (NORTHERN APENNINES, ITALY): IMPLICATIONS FOR THE MESSINIAN 'LAGO-MARE' EVENT

Carnevale G.; Landini W.; Caputo D. (2006)

A fish otolith assemblage from the Messinian 'Lago-mare' deposits of the Colombacci Formation cropping out in the Montecalvo in Foglia Syncline, Marche, central Italy, is described. The assemblage displays a low diversity ...
TWO DISTINCT PRECAMBRIAN TERRANES IN THE SOUTHERN PRINCE CHARLES MOUNTAINS, EAST ANTARCTICA: SHRIMP DATING AND GEOCHEMICAL CONSTRAINTS

Mikhalsky E.V.; Beliatsky B.V.; Sheraton J.W.; Roland N.W. (2006)

The Southern Prince Charles Mountains (SPCM) are mostly occupied by the Archaean Ruker Terrane. The Lambert Terrane crops out in the northeastern part of the SPCM. New geochemical and zircon U-Pb SHRIMP ages for felsic ...
PHYLLOSILICATES (GLAUCONITE, ILLITE, AND CHLORITE) IN TERRIGENOUS SEDIMENTS OF THE ARYMAS FORMATION (OLENEK HIGH)

Ivanovskaya T.A.; Gor'kova N.V.; Karpova G.V.; Pokrovskaya E.V. (2006)

It is shown that globular phyllosilicates subjected to deep categenesis are abundant in Middle Riphean sandstones and siltstones (lower subformation of the Arymas Formation) of the Olenek High. Their detailed structural- ...
THE ALSHAR EPITHERMAL AU-AS-SB-TL DEPOSIT, SOUTHERN MACEDONIA

Volkov A.V.; Kochneva N.T.; Tomson I.N.; Serafimovski T.; Tasev G. (2006)

The results of tectono-metallogenic, geological-structural, mineralogical, isotopic, and thermobarogeochemical studies at the Alshar deposit and in the adjacent area are discussed. The data obtained show that the gold ...
SOURCES OF MANGANESE DEPOSITED AS OCEANIC FE-MN ORE

Bazilevskaya E.S. (2006)

The current concepts of two competing sources of manganese deposited as oceanic Fe-Mn ore are reviewed and assessed critically. A new solution of this problem proposed in this paper is a further development of fundamental ...
SR-ND-PB ISOTOPIC COMPOSITIONS OF THE KOVDOR PHOSCORITE-CARBONATITE COMPLEX, KOLA PENINSULA, NW RUSSIA

Lee M.J.; Lee J.I.; Hur S.D.; Kim Y.; Moutte J.; Balaganskaya E. (2006)

The Sr, Nd and Pb isotopic compositions for the Kovdor phoscorite-carbonatite complex (PCC), Kola Peninsula, NW Russia, have been determined to characterize the mantle sources involved and to evaluate the relative contributions ...
ACOUSTIC INVESTIGATION OF COLD SEEPS OFFSHORE GEORGIA, EASTERN BLACK SEA

Klaucke I.; Weinrebe W.; Bürk D.; Sahling H.; Bohrmann G.; Blinova V.; Lursmanashvili N. (2006)

Several gas seeps and near-surface gas hydrate deposits have been identified in 850-900-m water depth on the continental slope offshore Batumi, Georgia (eastern Black Sea) using deep-towed high-resolution sidescan sonar ...
HISTORICAL VOLCANOES OF ARMENIA AND ADJACENT AREAS: WHAT IS REVISITED?

Karakhanian A.; Arakelian S.; Avagyan A.; Baghdassaryan H.; Davtian V.; Jrbashyan R.; Trifonov V.; Philip H. (2006)

The validity of some data in Karakhanian et al. [Karakhanian, A., Djrbashian, R., Trifonov V., Philip H., Arakelian S., Avagian, A., 2002. Holocene-historical volcanism and active faults as natural risk factor for Armenia ...
HISTORY OF THE METEORITE COLLECTION OF THE RUSSIAN ACADEMY OF SCIENCES

Ivanova M.A.; Nazarov M.A. (2006)

The meteorite collection of the Russian Academy of Sciences is the largest and most unique collection of meteorites in Russia, and one of the famous meteorite collections in the world. The collection contains more than ...
HYDROTHERMALLY ALTERED CLAYEY SEDIMENTS IN THE RIFT ZONE OF ICELAND (INFLUENCE OF MICROBIOTA ON ACCUMULATION OF MINOR ELEMENTS)

Geptner A.R.; Ivanovskaya T.A.; Pokrovskaya E.V. (2006)

Results of the first detailed study of mineral and chemical compositions in the rift zone of Iceland near the town of Hveragerdi are presented. The major clayey components represented by dioctahedral smectites (mainly, ...
RADIATIVE TRANSFER THEORY FOR ESTIMATION OF THE SEISMIC MOMENT

Sens-Schönfelder C.; Wegler U. (2006)

We propose a new technique to obtain source spectra and seismic moments of regional earthquakes from envelopes of seismic coda. As compared to existing methods, our approach is based on a physical model of the scattering ...
ISOTOPIC SIGNATURES OF DEPOSITION AND TRANSFORMATION OF LOWER CAMBRIAN SALIFEROUS ROCKS IN THE IRKUTSK AMPHITHEATER: COMMUNICATION 1. SULFUR ISOTOPIC COMPOSITION

Vinogradov V.I.; Bujakaite M.I.; Kuleshov V.N.; Pokrovskii B.G.; Belenitskaya G.A.; Minaeva M.A. (2006)

New isotope data on Lower Cambrian rocks of the Irkutsk amphitheater are reported in three communications. The first communication is devoted to the sulfur isotopic composition, which is most sensitive to ostsedimentary ...
GOLD-BEARING REEFS OF THE WITWATERSRAND BASIN: A MODEL OF SYNSEDIMENTATION HYDROTHERMAL FORMATION

Safonov Yu.G.; Prokof'ev V.Yu. (2006)

The current concepts concerning the genesis of the unique ore-bearing reefs of the Witwatersrand Basin and its gold resource potential are considered. The results of microscopic examination of ore from the Black, Ventersdorp ...

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