17 Result(s)

Article

Mineralogy of PGE in the mafic-ultramafic massifs of the Kola region

During the last few years nearly 50 minerals and unnamed platinum-group element (PGE) phases have been identified by the authors in nickel-bearing mafic-ultramafic massifs of the Kola region. About 20 establis...

Yu. N. Yakovlev, F. P. Mitrofanov, S. A. Razhev… in Mineralogy and Petrology (1991)

Chapter

Fluidized Bed Retorting of Oil Shale

Atmospheric pressure fluidized bed technology offers many processing advantages for retorting oil shale. The one advantage which has been most studied and emphasized is that oil yield, as compared to Fischer a...

S. D. Carter, U. M. Graham, A. M. Rubel… in Composition, Geochemistry and Conversion o… (1995)

Article

Variation of the oxygen content and point defects in olivines, (Fe _x Mg _1−x )₂SiO₄, 0.2 ≤ x ≤ 1.0

 The variation of the oxygen content in olivines, (Fe _x Mg_{1− x} )₂SiO₄, with 0.2 ≤ x ≤ 1.0, was investigated by thermogravimetric measurements. ...

T.-L. Tsai, R. Dieckmann in Physics and Chemistry of Minerals (2002)

Article

Prediction of the phase state of hydrocarbon accumulations in the Mesozoic deposits of northwestern Siberia

The phase state of hydrocarbon accumulations was predicted using recent drilling data for three oil and gas complexes of the northern regions of the West Siberian petroliferous basin: Lower and Middle Jurassic...

S. A. Punanova, T. L. Vinogradova in Geochemistry International (2006)

Article

Hydrocarbon systems of early generation

T. L. Vinogradova, S. A. Punanova in Geochemistry International (2009)

Article

Satellite-derived direct radiative effect of aerosols dependent on cloud cover

Aerosols from biomass burning can alter the radiative energy balance of the Earth by reflecting or absorbing solar radiation. Satellite measurements indicate that the amount of energy absorbed by aerosols at t...

D. Chand, R. Wood, T. L. Anderson, S. K. Satheesh, R. J. Charlson in Nature Geoscience (2009)

Article

Intense localized rock uplift and erosion in the St Elias orogen of Alaska

The St Elias orogen in Alaska is one of the world’s highest coastal mountain ranges. An age analysis of detrital material in active sediment systems in the inaccessible ice-covered valley bottoms reveals local...

E. Enkelmann, P. K. Zeitler, T. L. Pavlis, J. I. Garver, K. D. Ridgway in Nature Geoscience (2009)

Article

Immature oils of deep-water facies: Physicochemical properties and hydrocarbon and trace-element composition

S. A. Punanova, T. L. Vinogradova in Geochemistry International (2010)

Article

REE and fluid inclusions in zoned fluorites from Eastern Transbaikalia: Distribution and geochemical significance

Special methodology was used to study the distribution of REE and some other elements in zoned fluorites from the different deposits of Eastern Transbaikalia. Fluorites from the uranium and polymetallic ore fi...

S. F. Vinokurov, V. N. Golubev, T. L. Krylova… in Geochemistry International (2014)

Article

Rock comminution as a source of hydrogen for subglacial ecosystems

Microbes live under glaciers that have persisted for millions of years, without a clear energy supply. Analyses of crushed rocks suggest that interactions of glaciers with the rocks beneath can produce enough H₂ ...

J. Telling, E. S. Boyd, N. Bone, E. L. Jones, M. Tranter… in Nature Geoscience (2015)

Article

Geochemical features of mature hydrocarbon systems and indicators of their recognition

S. A. Punanova, T. L. Vinogradova in Geochemistry International (2016)

Article

The biomass and biodiversity of the continental subsurface

Despite accounting for a significant portion of the Earth’s prokaryotic biomass, controls on the abundance and biodiversity of microorganisms residing in the continental subsurface are poorly understood. To re...

C. Magnabosco, L.-H. Lin, H. Dong, M. Bomberg, W. Ghiorse… in Nature Geoscience (2018)

Article

Biotransformation of Neptunium in Model Groundwaters

Abstract—The kinetics of Np(VI and V) reduction was studied in model underground water in the presence of bacteria, isolated from from deep-injection disposal of liquid radioactive wastes of Siberian Chemical Pla...

A. P. Novikov, A. V. Safonov, T. L. Babich, K. A. Boldyrev… in Geochemistry International (2020)

Chapter and Conference Paper

New Data on the Crystal Chemistry of Technogenic Minerals from the Burned Dumps of Chelyabinsk Coal Basin

Herein we report a crystal chemical and spectroscopic study of two anthropogenic ferrites: aciculite and srebrodolskite from the burnt dumps of the Chelyabinsk coal basin (South Urals, Russia).

A. A. Zolotarev Jr., S. V. Krivovichev… in XIII General Meeting of the Russian Minera… (2023)

Article

Sensitivity of Santorini eruption model predictions to input conditions

R. J. Walker, S. P. A. Gill, C. Greenfield, K. J. W. McCaffrey… in Nature Geoscience (2023)

Article

Assessment of a small island’s groundwater resilience under the pressure of anthropogenic and natural stresses on Tunda Island, Indonesia

Groundwater resilience on small islands, especially low-lying carbonate islands like Tunda, is vulnerable to an expanding population, demand exceeding supply, contamination from human and animal waste, and cli...

T. Solihuddin, J. Prihantono, A. Daulat, R. Bramawanto… in Environmental Earth Sciences (2024)