ELibrary: Recent submissions

Now showing items 21-40 of 26131

GEOCHEMICAL AND PETROLOGICAL EVIDENCE FOR TERTIARY TERRESTRIAL AND CRETACEOUS MARINE POTENTIAL PETROLEUM SOURCE ROCKS IN THE WESTERN KAMCHATKA COASTAL MARGIN, RUSSIA

Li M.; Stasiuk L.; Maxwell R.; Monnier F.; Bazhenova O. (2006)

Rock-Eval pyrolysis and microscopic analyses of Palaeogene terrestrial strata from the western Kamchatka coastal margin, Russia, indicate that good oil-prone source rocks are present in both coals and shales. Hydrogen ...
EARLY PROTEROZOIC CENTRAL-TYPE VOLCANO IN THE PECHENGA STRUCTURE AND ITS RELATION TO THE ORE-BEARING GABBRO-WEHRLITE COMPLEX OF THE KOLA PENINSULA

Skuf'in P.K.; Bayanova T.B. (2006)

The Zapolyarnyi volcanic center is confined to the boundary between the oldest volcanic formations (I and II) of the Pechenga complex. Its structure and rock association are significantly different from those of numerous ...
SYSTEMATICS AND SHELL MICROSTRUCTURE OF THE SPIRIFERID GENERA ECHINOSPIRIFER AND KOMISPIRIFER FROM THE UPPER DEVONIAN OF SOUTHERN TIMAN

Oleneva N.V. (2006)

The type species of the genera Echinospirifer Ljaschenko, 1973 Komispirifer Ljaschenko, 1973 and Mennespirifer Ljaschenko, 1973 were revised based on material from the memorial collection of A.I. Ljaschenko. Mennespirifer ...
ON THE FINDING OF ORNITHOMIMID DINOSAURS (SAURISCHIA, ORNITHOMIMOSAURIA) IN THE UPPER CRETACEOUS BEDS OF TAJIKISTAN

Alifanov V.R.; Averianov A.O. (2006)

Fragmentary remains of ornithomimids (Ornithomimidae indet.) from the Lower Santonian (Upper Cretaceous) Kansai locality in northwestern Fergana (Tajikistan) are described, and the composition of its dinosaurian assemblage ...
EXPERIMENTAL STUDY OF THE EFFECT OF SIO2 ON NI SOLUBILITY IN SILICATE MELTS

Borisov A.A. (2006)

The solubility of Ni in silicate melts with variable SiO2 content was studied at a total pressure of 1 atm within a wide range of temperature and oxygen fugacity. The maximum solubility of Ni (minimum activity coefficient ...
PARTITIONING OF TRACE ELEMENTS BETWEEN CARBONATE-SILICATE MELTS AND MANTLE MINERALS: EXPERIMENT AND PETROLOGICAL CONSEQUENCES

Girnis A.V.; Bulatov V.K.; Lahaye Y.; Brey G.P. (2006)

The partitioning of a number of trace elements (Ba, Nb, Zr, Y, REE, etc.) between orthopyroxene, garnet, and carbonate-silicate melt was experimentally studied using a belt apparatus at pressures of 3.5-4.2 GPa and ...
RADIOLARIAN SKELETONS: FORMATION AND MORPHOLOGY OF SKELETAL SHELLS

Afanasieva M.S. (2006)

A new scheme of successive stages in the formation of radiolarian skeletons is proposed. Successive complication of symmetry patterns is considered. The morphology and evolutionary changes of five types of skeletal shells, ...
GLOBAL TIME SCALE AND REGIONAL STRATIGRAPHIC REFERENCE SCALES OF CENTRAL AND WEST EUROPE, EAST EUROPE, TETHYS, SOUTH CHINA, AND NORTH AMERICA AS USED IN THE DEVONIAN-CARBONIFEROUS-PERMIAN CORRELATION CHART 2003 (DCP 2003)

Menning M.; Alekseev A.S.; Chuvashov B.I.; Davydov V.I.; Devuyst F.-X.; Forke H.C.; Grunt T.A.; Hance L.; Heckel P.H.; Izokh N.G.; Jin Y.-G.; Jones P.J.; Kotlyar G.V.; Kozur H.W.; Nemyrovska T.I.; Schneider J.W.; Wang X.-D.; Weddige K.; Weyer D.; Work D.M.et al. (2006)

The boundaries of the Devonian, Carboniferous, and Permian stages of the Global Stratigraphic Reference Scale (abbreviated to Global Stratigraphic Scale-GSS) are described in relation to the biostratigraphic and/or ...
SPECIES OF THE GENUS GLOMITES AS PLANT MYCOBIONTS IN EARLY DEVONIAN ECOSYSTEMS

Karatygin I.V.; Snigirevskaya N.S.; Demchenko K.N. (2006)

Members of the genus Glomites played a prominent role as plant mycobionts in the Early Devonian paleoecosystems. Remains of fossil fungi are studied from silicified tissues of the axial organs of several specimens of the ...
TAXONOMY OF THE FOSSIL GRYLLOBLATTID NYMPHS (INSECTA: GRYLLOBLATTIDA)

Aristov D.S.; Pan'kov N.N.; Novokshonov V.G. (2006)

Nymphs of fossil grylloblattid insects are revised. Newly described taxa are Lemmatonympha gracilissima gen. et sp. nov. and Kaltanympha vorcutensis sp. nov. from the Verkhne-Syr'yaginsk locality (Ufimian, Lek-Vorkuta ...
COORDINATION AND VALENT STATE OF NICKEL IONS IN BERYL AND CHRYSOBERYL CRYSTALS

Solntsev V.P.; Tsvetkov E.G.; Alimpiev A.I.; Mashkovtsev R.I. (2006)

We have studied the polarized optical absorption and the EPR spectra of Ni-doped beryls grown by hydrothermal, flux and gas-transport methods, and chrysoberyl grown by the Czochralski and flux methods. In beryls, three ...
THE BEHAVIOR OF RARE-EARTH AND LITHOPHILE TRACE ELEMENTS IN RARE-METAL GRANITES: A STUDY OF FLOURITE, MELT INCLUSIONS AND HOST ROCKS FROM THE KHANGILAY COMPLEX, TRANSBAIKALIA, RUSSIA

Badanina E.V.; Trumbull R.B.; Dulski P.; Wiedenbeck M.; Veksler I.V.; Syritso L.F. (2006)

We have determined trace-element concentrations in fluorite mineral separates, host granites and residual melts trapped in quartz from a well-documented sequence of differentiated Li-F-rich granites in the Khangilay complex, ...
TRIASSIC BIOCHRONOLOGY: STATE OF THE ART AND MAIN PROBLEMS

Shevyrev A.A. (2006)

According to known resolution of the IUGS, the International Stratigraphic Commission entrusted its subcommissions with a task to prepare proposals for the official approval of boundaries between Phanerozoic stages. Specially ...
PROTOLITHS OF THE METAMORPHIC ROCKS OF THE FEDOROV COMPLEX, ALDAN SHIELD: CHARACTER, AGE, AND GEODYNAMIC ENVIRONMENTS OF ORIGIN

Velikoslavinsky S.D.; Kotov A.B.; Sal'nikova E.B.; Kovach V.P.; Glebovitsky V.A.; Zagornaya N.Yu.; Yakovleva S.Z.; Anisimova I.V.; Fedoseenko A.M.; Tolmacheva E.V. (2006)

Geochemical data indicate that the protoliths of the overwhelming majority of the metamorphic rocks composing the Fedorov Complex in the Aldan granulite megacomplex were volcanic rocks of three groups, which occur in ...
NEUTRON IRRADIATION AND POST-IRRADIATION ANNEALING OF RUTILE (TIO2-X): EFFECT ON HYDROGEN INCORPORATION AND OPTICAL ABSORPTION

Bromiley G.D.; Shiryaev A.A. (2006)

Neutron irradiation and post-irradiation annealing under oxidising and reducing conditions have been used to investigate H incorporation in, and the optical properties of, reduced (TiO2-x) rutile. Optical absorption in ...
ON THE BRAIN OF A PRIMITIVE BIRD FROM THE UPPER CRETACEOUS OF EUROPEAN RUSSIA

Kurochkin E.N.; Saveliev S.V.; Postnov A.A.; Pervushov E.M.; Popov E.V. (2006)

Cerebavis cenomanica gen. et sp. nov. from the Middle Cenomanian of the Volgograd Region (Russia) is described based on a brain mold. The brain of Cerebavis is characterized by a mosaic combination of primitive and advanced ...
PALYNOLOGICAL CHARACTERISTICS OF THE BOTTOM SEDIMENTS OF THE SOUTHERN BARENTS SEA

Sharapova A.Yu. (2006)

The distribution of spores and pollen grains was studied in nine sections of bottom sediments up to 50 m thick, in the southern Barents Sea. The Early Cretaceous, Pleistocene, and Holocene ages of the enclosing sediments ...
ON AN ORNITHOMIMID DINOSAUR (SAURISCHIA, ORNITHOMIMOSAURIA) FROM THE CENOMANIAN OF FERGANA

Averianov A.O. (2006)

A fragmentary coracoid of Ornithomimidae indet. from the Lower Cenomanian of the Abshir River (Kyrgyzstan) is described. This is the first record of this group in a Cenomanian locality of Fergana. The coracoid from the ...
SIGNIFICANCE OF BACTERIA IN NATURAL AND EXPERIMENTAL SEDIMENTATION OF CARBONATES, PHOSPHATES, AND SILICATES

Ushatinskaya G.T.; Zhegallo E.A.; Gerasimenko L.M.; Zaitseva L.V.; Orleanskii V.K. (2006)

The role of bacteria in sedimentation of phosphorites, siliceous and carbonate rocks is discussed. Preservation of bacterial bodies in fossil condition, even in very ancient deposits, is connected with their very early ...
GROWTH AND DEVELOPMENT OF AGNOSTIDS PENTAGNOSTUS PROANABARENSIS FEDOSEEV, 1999

Naimark E.B. (2006)

Juvenile development of the Middle Cambrian agnostid trilobite Pentagnostus proanabarensis Fedoseev, 1999 is studied. A sequence of eight juvenile stages is defined based on changes in morphology and measurements. Three ...

Recently added

ELibrary: Recent submissions

Search DSpace

Browse

All of DSpace

This Collection

My Account