Results 31 to 40 of about 15,904 (206)

Multimedia fate of petroleum hydrocarbons in the soil: Oil matrix of constructed biopiles [PDF]

, 2010
A dynamic multimedia fugacity model was used to evaluate the partitioning and fate of petroleum hydrocarbon fractions and aromatic indicator compounds within the soil: oil matrix of three biopiles.
Coulon, Frederic, Paton, Graeme I., Pollard, Simon J. T., Semple, Kirk T., Villa, Raffaella, Whelan, M.J.   +5 more
core   +1 more source

Redox preconditioning deep cratonic lithosphere for kimberlite genesis – evidence from the central Slave Craton

Scientific Reports, 2017
We present the first oxygen fugacity (fO2) profile through the cratonic lithospheric mantle under the Panda kimberlite (Ekati Diamond Mine) in the Lac de Gras kimberlite field, central Slave Craton, northern Canada.
G. M. Yaxley, A. J. Berry, A. Rosenthal, A. B. Woodland, D. Paterson   +4 more
doaj   +1 more source

The evaluation of physico-chemical parameters of the Nasrand Plutonic complex by using mineral composition

Journal of Economic Geology, 2017
Introduction Mineral composition is sensitive to variations in the composition of the magma and can be used to characterize the physical conditions of crystallization such as temperature, pressure, oxygen fugacity and water content.
Fatemeh Sarjoughian
doaj   +1 more source

Mineral chemistry and geothermobarometry of gabbroic dykes ‎of the Garmab Ophiolite sequence ‎‎(Northeast of Kamyaran)‎ [PDF]

پترولوژی, 2018
The Garmab ophiolite complex, a part of the Ophiolite-Radiolithic zone of Kermanshah, is located in the northeast of Kamyaran. In view of the Iranian geo-structural zones, this complex is situated between the Sanandaj-Sirjan Zone and the Zagros thrust ...
shahryar Mahmoudi, Ayob Vaisy Nya, Mir Ali Asghar Mokhtari   +2 more
doaj   +1 more source

The habitability of a stagnant-lid Earth

, 2017
Plate tectonics is a fundamental component for the habitability of the Earth. Yet whether it is a recurrent feature of terrestrial bodies orbiting other stars or unique to the Earth is unknown.
Breuer, D., Godolt, M., Grenfell, J. L., Höning, D., Nikolaou, A., Plesa, A. -C., Ruedas, T., Spohn, T., Stracke, B., Tosi, N.   +9 more
core   +1 more source

Covariation of Slab Tracers, Volatiles, and Oxidation During Subduction Initiation

Geochemistry, Geophysics, Geosystems, 2021
Subduction‐related lavas have higher Fe3+/∑Fe than midocean ridge basalts (MORB). Hypotheses for this offset include imprint from subducting slabs and differentiation in thickened crust.
Maryjo Brounce, Mark K. Reagan, Katherine A. Kelley, Elizabeth Cottrell, Kenji Shimizu, Renat Almeev   +5 more
doaj   +1 more source

Crystallization conditions of two adjacent epidote + diopside-bearing granitic stocks, northeastern Brazil

Anais da Academia Brasileira de Ciências, 2021
The Tamboril and Olho d’Água granitic stocks are part of the abundant calc-alkalic magmatic epidote-bearing granitic rocks in the Cachoeirinha–Salgueiro Terrane (CST) in the Transversal Zone Domain, northeastern Brazil. The equigranular Olho d’Água stock
RENAN SIQUEIRA, ALCIDES N. SIAL, VALDEREZ P. FERREIRA   +2 more
doaj   +1 more source

The effect of oxygen fugacity on the evaporation of boron from aluminoborosilicate melt [PDF]

European Journal of Mineralogy
We present the results of B2O3 evaporation experiments from Ca- and Mg-bearing aluminoborosilicate melts. Our experiments were conducted at 1245 to 1249 ∘C and 1350 to 1361 ∘C for different run times (60–1020 min), and at oxygen fugacities (logfO2 ...
S. Flemetakis, S. Flemetakis, C. J. Renggli, P. Pangritz, J. Berndt, S. Klemme   +5 more
doaj   +1 more source

Contrasting apatite geochemistry between ore-bearing and ore-barren intrusions of the giant Kalmakyr gold-rich porphyry Cu deposit, Tien Shan, Uzbekistan

Frontiers in Earth Science, 2023
The Kalmakyr deposit in Uzbekistan is one of the world’s largest gold-rich porphyry Cu deposits, and mineralization was proposed to be closely associated with the emplacement of the latest intrusive phases, that is, granodiorite porphyry.
Yangtao Liu, Xiaobo Zhao, Chunji Xue, Chunji Xue, Bakhtiar Nurtaev, Jing Chen   +5 more
doaj   +1 more source

Clathrate hydrate crystallization

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Clathrate hydrate crystallization has been an area of interest to chemical engineers from the point of view of crystal structure, thermophysical properties, phase equilibria, kinetics, industrial applications, and environmental (climate change) implications.
Peter Englezos
wiley   +1 more source