Results 61 to 70 of about 1,213,951 (200)

Clathrate hydrate crystallization

The Canadian Journal of Chemical Engineering, Volume 104, Issue 11, Page 5931-5953, November 2026.
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

Atmospheric Chemistry of Secondary and Hybrid Atmospheres of Super Earths and Sub-Neptunes

The Astrophysical Journal
The atmospheres of small exoplanets likely derive from a combination of geochemical outgassing and primordial gases left over from formation. Secondary atmospheres, such as those of Earth, Mars, and Venus, are sourced by outgassing. Persistent outgassing
Meng Tian, Kevin Heng
doaj   +1 more source

The Impact of Iron‐Containing Particulate Matter on the Chemical Degradation of Cellulose Acetate in Collections

ChemPlusChem, Volume 91, Issue 11, November 2026.
Artificial particulate matter with high iron content and varied iron speciation accelerates cellulose acetate degradation, increasing chemical instability during aging. These findings identify a previously underexplored deterioration pathway and demonstrate that airborne pollutant composition can critically influence the preservation of historical ...
Francesca Azolini, Katherine Curran, Simoní Da Ros, Adam Gibson   +3 more
wiley   +1 more source

Diffusion of Ti and some Divalent Cations in Olivine as a Function of Temperature, Oxygen Fugacity, Chemical Potentials and Crystal Orientation [PDF]

, 2016
International audienceThe diffusion of titanium along with Ni, Co and Mn in pure synthetic forsterite has been studied as a function of temperature, oxygen fugacity, crystallographic orientation and chemical potentials in the four-component system MgO ...
St O'Neill, H.C., Spandler, C., Jollands, M.C., Padron Navarta, Jose Alberto, Padrón-Navarta, J. A., O'Neill, H. St. C., Hermann, J., Hermann, Jörg, O'Neill, H.St.C., Padrón-Navarta, J.A., Jollands, M. C., O’Neill, H. St. C.   +11 more
core   +1 more source

Permian sedimentary sequence containing analcimolite and authigenic aegirine from the Boskovice Basin (Bohemian Massif, Czechia)

The Depositional Record, Volume 12, Issue 5, November 2026.
The Permian freshwater lacustrine sedimentary sequence rich in analcime, with unusual authigenic aegirine and NaFe3+ clinopyroxene. Product of ashfall directly linked with fossil accumulation (Konzentrat‐Lagerstätte). Abstract The Early Permian freshwater lacustrine sedimentary sequence in the vicinity of Bačov (Czechia) is world‐famous for its rich ...
Jakub Jirásek, Dalibor Matýsek, Martin Kašing, Daniel Šimíček   +3 more
wiley   +1 more source

Geology and mineralization of the Dongping supergiant alkalic-hosted Au-Te deposit (>100 t Au) in Northern Hebei Province, China: A review

China Geology
: The Dongping deposit is the largest alkalic-hosted gold deposit in China containing >100 t of Au. This paper presents a new understanding for Dongping ore system, based on the previous studies.
Shi-min Zhen, Da-zhao Wang, Zhong-jian Zha, Hai-jun Bai, Jiang Wang   +4 more
doaj   +1 more source

On the Differential Conditioning of Sub‐Antarctic Mode Water and Antarctic Intermediate Water Over Decadal Time Scales

Journal of Geophysical Research: Oceans, Volume 131, Issue 11, November 2026.
Abstract We report results from a meridional transect performed along 150°W, 30°S to 60°S in the Southern Ocean (SO). This study aimed to document the rates of conditioning of Subantarctic Mode Water (SAMW) and Antarctic Intermediate Water (AAIW), which are formed during deep mixing events in the austral winter.
W. M. Balch, D. J. McGillicuddy Jr., H. Oliver, N. R. Bates, P. L. Morton, D. T. Drapeau, S. R. Pinkham, B. C. Bowler, R. Garley, M. Enright, J. Happell   +10 more
wiley   +1 more source

Oxygen fugacity control in piston-cylinder experiments:A re-evaluation

, 2014
Jakobsson (Contrib Miner Petrol 164(3):397-407, 2012) investigated a double capsule assembly for use in piston-cylinder experiments that would allow hydrous, high-temperature, and high-pressure experiments to be conducted under controlled oxygen fugacity
Blundy, Jon, Jakobsson, Sigurdur, Moore, Gordon   +2 more
core   +1 more source

The constant oxidation state of Earth’s mantle since the Hadean

Nature Communications
Determining the evolutionary history of mantle oxygen fugacity (fo2) is crucial, as it controls the fo2 of mantle-derived melts and regulates atmospheric composition through volcanic outgassing. However, the evolution of mantle fo2 remains controversial.
Fangyi Zhang, Vincenzo Stagno, Lipeng Zhang, Chen Chen, Haiyang Liu, Congying Li, Weidong Sun   +6 more
doaj   +1 more source

A Late Cretaceous Aborted Spreading Center in the Northern Arabian Sea Recorded by the Laxmi Basin

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 11, November 2026.
Abstract The Laxmi Basin (LB), a marginal depression, is a prominent geomorphic feature in the northern Arabian Sea. Understanding how the basin formed has important implications for the India–Seychelles breakup and the evolution of the western Indian Ocean.
Sibin Sebastian, Jyotiranjan S. Ray
wiley   +1 more source