Results 11 to 20 of about 911 (151)

ORGANIC GEOCHEMICAL CHARACTERISTICS OF ŞIRNAK ASPHALTITES IN SOUTHEAST ANATOLIA, TURKEY; pp. 58–83 [PDF]

open access: yesOil Shale, 2010
In this study, the organic geochemical properties of asphaltites in Şırnak region in Southeast Anatolia are given in detail. Total organic carbon, Rock-Eval pyrolysis, gas chromatography of saturated fractions, gas chromato­graphy-mass spectrometry ...
O. KAVAK   +3 more
doaj   +1 more source

Geochemical research of asphaltite formation in the Orenburg region [PDF]

open access: yesE3S Web of Conferences, 2019
The results of the studies of the physicochemical properties and genesis of asphaltites from the deposits of the Orenburg region are considered. Based on the data of a study on the distribution of hydrocarbon biomarkers (n-alkanes, isoprenanes, steranes,
Zakharchenko Maria   +2 more
doaj   +1 more source

Research into the process of preparation of Ukrainian coal by the oil aggregation method [PDF]

open access: yes, 2017
We conducted a study into concentration of Donetsk coal with varying degrees of coalification – anthracite and grade G – by the method of oil aggregation. We determined the character of impact of the following factors on the results of oil aggregation of
Biletskyi, V. S.   +8 more
core   +2 more sources

Collisions, Cosmic Radiation and the Colors of the Trojan Asteroids [PDF]

open access: yes, 2009
The Trojan asteroids orbit about the Lagrangian points of Jupiter and the residence times about their present location are very long for most of them. If these bodies originated in the outer Solar System, they should be mainly composed of water ice, but,
A. Bar-Nun   +37 more
core   +2 more sources

Characterization of the fishing asphaltites in Boyacá-Cantera Santa Teresa

open access: yesRevista Ingenio, 2013
The purpose of this research article is to show the characterization and design of MDC-2-INVIAS 2007 type bituminous mixtures with stone aggregates and asphaltite conglomerates from the Santa Teresa de Pesca mine - Boyacá, following the MODIFIED MARSHALL
Carlos Hernando Higuera Sandoval   +2 more
doaj   +1 more source

Fuel supply chain analysis of Turkey [PDF]

open access: yes, 2007
In spite of its natural sources, Turkey depends on other countries in terms of energy production, and a transfer from conventional fossil sources to sustainable energy sources is strongly necessary.
Dumanli, Ahu Gumrah   +5 more
core   +1 more source

Geochemistry and origin of organic-rich sediment veins in fractured granitic basement, Helmsdale, Sutherlandshire, UK [PDF]

open access: yes, 2017
Acknowledgements MB is in receipt of a PhD studentship from the Petroleum Technology Development Fund of Nigeria. LB is supported by NERC grant NE/M010953/1. C. Taylor, W. Ritchie and J. Johnston provided skilled technical support.
Baba, Mas'Ud   +3 more
core   +1 more source

Asphaltite Pyrolysis in Fluidized Bed Reactor

open access: yesGazi University Journal of Science Part A: Engineering and Innovation, 2023
In this study, the pyrolysis properties of asphaltite samples taken from Şırnak and Hakkari regions in a fluidized bed reactor under catalyst and non-catalyst conditions were determined by rapid and batch pyrolysis. Basic analysis, FTIR and XRF analyses were performed for the raw material.
Samad MOGHANIRAHIMI, Hüseyin TOPAL
openaire   +3 more sources

Unprecedented 34S‐enrichment of pyrite formed following microbial sulfate reduction in fractured crystalline rocks

open access: yesGeobiology, Volume 16, Issue 5, Page 556-574, September 2018., 2018
Abstract In the deep biosphere, microbial sulfate reduction (MSR) is exploited for energy. Here, we show that, in fractured continental crystalline bedrock in three areas in Sweden, this process produced sulfide that reacted with iron to form pyrite extremely enriched in 34S relative to 32S.
Henrik Drake   +8 more
wiley   +1 more source

Near-Infrared Mapping and Physical Properties of the Dwarf-Planet Ceres [PDF]

open access: yes, 2007
We study the physical characteristics (shape, dimensions, spin axis direction, albedo maps, mineralogy) of the dwarf-planet Ceres based on high-angular resolution near-infrared observations.
A'Hearn   +50 more
core   +4 more sources

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