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C- И Sr-ИЗОТОПНАЯ ХЕМОСТРАТИГРАФИЯ И Pb–Pb ВОЗРАСТ КАРБОНАТНЫХ ОТЛОЖЕНИЙ ВОРОГОВСКОЙ СЕРИИ (НЕОПРОТЕРОЗОЙ), СЕВЕРО-ЗАПАД ЕНИСЕЙСКОГО КРЯЖА

Кочнев Б.Б.; Кузнецов А.Б.; Покровский Б.Г.; Ситкина Д.Р.; Смирнова З.Б. (2019)

Получена С- и Sr-изотопная характеристика и определен Pb–Pb возраст карбонатных пород вороговской серии в ее типовом разрезе по р. Вороговка на северо-западе Енисейского кряжа. Отложения серии в составе северореченской, ...

C-HE-AR VARIATIONS WITHIN A DUNITE NODULE AS A FUNCTION OF FLUID INCLUSION MORPHOLOGY

Burnard P.G.; Turner G.; Stuart F. (1994)

Combined laser extraction and manometric-quadrupole-mass spectroscopic measurements permit the simultaneous analysis of CO2, He and Ar in selected fluid inclusion generations trapped in a dunite nodule from Reunion Island. ...

C-ISOTOPE CHEMOSTRATIGRAPHIC CORRELATION OF THE UPPER RIPHEAN IN THE URALS AND ARCTIC REGION

Raaben M.E. (2001)

Two secular variation curves of C-isotope composition in the Late Riphean carbonates are discussed. The curve approximating data on the Upper Riphean deposits of Spitsbergen, Greenland, northwestern Canada, and southwestern ...

C/N ratio, stable isotope (d13C, d15N), and n-alkane patterns of bryophytes along hydrological gradients of low-centred polygon of the Siberian Arctic.

Zibulski, Romy; Wesener, Felix; Wilkes, Heinz; Plessen, Birgit; Pestryakova, Ludmila A; Herzschuh, Ulrike (PANGAEA, 2017-03-22)

C1-C11 HYDROCARBONS OF HOT SPRINGS. QUANTITATIVE VARIATIONS AND MODES OF GENERATION

Porshnev N.V.; Bondarev V.D. (1989)

Geothermal oil, found in rift zones, is an indicator of vigorous geochemical, geological and biological alteration of matter. Appearances of petroleum hydrocarbons have been detected in areas of hot (315°C) brines springs ...

C25 HIGHLY BRANCHED ISOPRENOID ALKENES IN PLANKTONIC DIATOMS OF THE PLEUROSIGMA GENUS

Belt S.T.; Masse G.; Allard W.G.; Robert J.M.; Rowland S.J. (2001)

The C25 highly branched alkenes which have been widely reported in coastal and deep sea marine sediments and sedimenting particles have to date only been detected in benthic diatoms. Logically, a planktonic organism would ...

C32-C36 POLYMETHYL ALKENES IN BLACK SEA SEDIMENTS

Damste J.S.S.; Erkes A.M.W.E.P.; Rijpstra W.I.C.; De Leeuw J.W.; Wakeham S.G. (1995)

A series of novel C32-C36 polymethylhentriacontenes has been identified in near-surface sediments of the Black Sea. Hydrogenation of these components indicated that they possess the 5,8,14,24,27-pentamethyl-, 8,14,24,27- ...

CA AND NA ENVIRONMENTS IN NA2O-CAO-AL2O3-SIO2 GLASSES: INFLUENCE OF CATION MIXING AND CATION-NETWORK INTERACTIONS

Cormier L.; Neuville D.R. (2004)

X-ray absorption spectroscopy at Ca and Na K-edges and Molecular Dynamics (MD) simulations are used to investigate the Ca and Na environment in soda lime aluminosilicate glasses. Both X-ray Absorption Near Edge Structure ...

CA,AL-RICH INCLUSIONS, AMOEBOID OLIVINE AGGREGATES, AND AL-RICH CHONDRULES FROM THE UNIQUE CARBONACEOUS CHONDRITE ACFER 094: I. MINERALOGY AND PETROLOGY

Krot A.N.; Keil K.; Fagan T.J.; Yurimoto H.; McKeegan K.D.; Sahijpal S.; Hutcheon I.D.; Petaev M.I. (2004)

Based on their mineralogy and petrography, ~200 refractory inclusions studied in the unique carbonaceous chondrite, Acfer 094, can be divided into corundum-rich (0.5%), hibonite-rich (1.1%), grossite-rich (8.5%), compact ...

CA-AL-RICH INCLUSIONS FROM THE NINGQIANG METEORITE: CONTINUOUS ASSEMBLAGES OF NEBULAR CONDENSATES AND GENETIC LINK TO TYPE B INCLUSIONS

Lin Y.; Kimura M. (2003)

The petrography and mineral chemistry of 110 Ca-, Al-rich inclusions (CAIs) and 9 Ca- and/or Al-rich amoeboid olivine aggregates (AOAs) from the Ningqiang carbonaceous chondrite are reported. These CAIs are referred to as ...

Ca-содержащий стронцианит, барит, доломит и кальцит в метакимберлитах трубки Зарница, Якутия

Соколова Е.Л.; Спиридонов Э.М. (Минералогический музей им. А.Е. Ферсмана РАН (Москва), 2007)

Изучен стронцианит из метакимберлитов трубки Зарница. По минеральным ассоциациям и изотопному составу углерода и кислорода Са-содержащий стронцианит и ассоциирующие минералы имеют метаморфогенно-гидротермальный генезис и ...

CADMIUM ADSORPTION ON HEMATITE

Pivovarov S.A.; Lakshtanov L.Z. (2003)

Cadmium sorption on the hematite-electrolyte solution interface was studied in a wide range of pH and Cd2+ concentration by means of potentiometric titration and measurement of cadmium content in the solution. Computer ...

CADMIUM AND ZINC IN NAMIBIAN SHELF PHOSPHORITES

Baturin G.N. (2006)

We studied recent phosphorite nodules and micronodules of different grades of lithification, phosphatized coprolites of sea lions, and enclosing diatom oozes. Pliocene–Pleistocene phosphate samples include phosphorite ...

CADMIUM DEPOSITION AND MOBILITY IN THE SEDIMENTS OF AN ACIDIC OLIGOTROPHIC LAKE

Catalina Alfaro-De la Torre M.; Tessier A. (2002)

A dated core from the profoundal zone in a pristine oligotrophic acidic lake was analyzed for Cd as well as for Al, Ca, Fe, Mg, Mn, Pb, Ti and total carbon and nitrogen. Overlying water and porewater samples were also ...

CADMIUM ISOTOPIC COMPOSITION IN THE OCEAN

Lacan F.; Francois R.; Ji Y.; Sherrell R.M. (2006)

The oceanic cycle of cadmium is still poorly understood, despite its importance for phytoplankton growth and paleoceanographic applications. As for other elements that are biologically recycled, variations in isotopic ...

CADMIUM-BEARING WURTZITE AND ESKOLAITE: NEW ORE MINERALS IN THE LUNA 24 REGOLITH

Bogatikov O.A.; Gorshkov A.I.; Mokhov A.V.; Ashikhmina N.A.; Sivtsov A.V. (2001)

CAFETITE, CA[TI2O5](H2O): CRYSTAL STRUCTURE AND REVISION OF CHEMICAL FORMULA

Krivovichev S.V.; Yakovenchuk V.N.; Pakhomovsky Y.A.; Menshikov Y.P.; Burns P.C. (2003)

The crystal structure of cafetite, ideally Ca[Ti2O5](H2O), (monoclinic, P21/n, a = 4.9436(15), b = 12.109(4), c = 15.911(5) Å, β = 98.937(5)°, V = 940.9(5) Å3, Z = 8) has been solved by direct methods and refined to R1 = ...

Calc-alkaline magmatism of the Omgon Range: Evidence for Early Paleogene extension in the Western Kamchatka segment of the Eurasian continental margin.

Ledneva, G V; Nosova, A A; Soloviev, A V (PANGAEA, 2006-08-13)

CALCAREOUS NANNOFOSSILS FROM LATE JURASSIC SEDIMENTS OF THE VOLGA BASIN (RUSSIAN PLATFORM): EVIDENCE FOR PRODUCTIVITY-CONTROLLED BLACK SHALE DEPOSITION

Kessels K.; Mutterlose J.; Ruffell A. (2003)

The Jurassic/Cretaceous boundary interval in the northern hemisphere is characterized by the widespread occurrence of black shales. About 60% of all petroleum source rocks comprise sediments of late Jurassic and early ...

CALCIC AMPHIBOLE GROWTH AND COMPOSITIONS IN CALC-ALKALINE MAGMAS: EVIDENCE FROM THE MOTRU DIKE SWARM (SOUTHERN CARPATHIANS, ROMANIA)

Féménias O.; Nkono C.; Demaiffe D.; Mercier J.-C.C.; Diot H.; Berza T.; Tatu M. (2006)

A Late Pan-African calc-alkaline dike swarm (basalt-andesite-dacite-rhyolite) has been investigated in a region of over 2000 km2 in the Alpine Danubian window, South Carpathians (Romania). Amphibole phenocrysts and ...

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