Results 41 to 50 of about 5,273 (247)

Carboxylic acid sorption on synthetic clays in marine water: in vitro experiments and implications for organo-clay behaviour under marine conditions [PDF]

, 2010
International audienceIn order to investigate the role of clay minerals in organic matter preservation, the fixation of pure organic compounds on two synthetic low- and high-charge saponites was investigated in laboratory experiments simulating marine ...
Albéric, Patrick, Boussafir, Mohammed, Drouin, Sylvain, Durand, Aude, Robert, Jean-Louis   +4 more
core   +4 more sources

Effect of the time factor on the hydraulic activity of mechanically activated saponin-containing powder [PDF]

Нанотехнологии в строительстве
Introduction. The article examines the problem of the development of transport infrastructure in the Solovetsky archipelago and proposes a solution to reduce the cost of manufacturing reinforced concrete slabs for the road surface.
Marina V. Morozova, Maria A. Frolova
doaj   +1 more source

Effect of Calcination Temperature on the Synthesis of ZrO₂-Pillared Saponite to Catalytic Activity in Menthol Esterification

Indonesian Journal of Chemistry, 2016
The influence of calcination temperature on the synthesis of zirconia-pillared saponite (PILS) and on its catalytic activity in menthol esterification has been studied. Zirconia pillarization was conducted using zirconium tetraisopropoxide as a precursor
Is Fatimah, Dwiarso Rubiyanto, Nanda Candra Kartika   +2 more
doaj   +1 more source

Evolved gas analysis of hydrated phases in Murchison and Orgueil [PDF]

, 2005
To better characterise the hydrated minerals in chondrites Evolved Gas Analysis of Murchison, Orgueil and selected minerals has been carried out.
Baker, L., Franchi, I.A., Morris, A.A., Wright, I.P.   +3 more
core  

Depositional Facies, Sequence Stratigraphy, and Diagenesis of Lower Cretaceous Carbonate Reservoir, Southern Iraq: Implications for Petroleum Exploration

Journal of Petroleum Geology, Volume 49, Issue 2, Page 312-345, April 2026.
ABSTRACT The Lower Cretaceous Yamama Formation of southern Iraq represents a key carbonate reservoir within Iraq and the Middle East, yet its complex depositional facies architecture and diagenetic alterations present challenges for predicting reservoir quality.
A. K. A. Mohammed, F. Velledits, I. Q. Mohammed, M. Alsuwaidi, H. Mansurbeg, F. Kristály, D. K. Ivanova, Eloi González‐Esvertit, A. Awdal   +8 more
wiley   +1 more source

Shortwave Infrared Microimaging Spectroscopy of the Martian Meteorites

Journal of Geophysical Research: Planets, Volume 131, Issue 3, March 2026.
Abstract Until samples from the Martian surface are successfully brought to Earth, meteorites represent the only opportunity to perform laboratory analyses on Martian material. Microimaging spectroscopy of the Martian meteorite suite provides a valuable means to better understand infrared data collected remotely from the Martian surface. This rapid and
J. K. Miura, B. L. Ehlmann, R. Greenberger, E. Cutts   +3 more
wiley   +1 more source

Mineralogical Classification of CRISM Hyperspectral Data Under Uncertainty With Hybrid Neural Networks

Journal of Geophysical Research: Planets, Volume 131, Issue 3, March 2026.
Abstract Orbital remote sensing observations are a lynchpin of planetary science research. Hyperspectral infrared spectroscopy in particular is key for planetary mineralogical exploration, for example, CRISM for Mars, as this underpins our understanding of the distribution of specific lithologies and the geological process leading to their formation ...
Robert Platt, Rossella Arcucci, Cédric M. John   +2 more
wiley   +1 more source

Production of porous sintered materials using wastes of manufacturing engineering in self-propagating high-temperature synthesis [PDF]

Журнал інженерних наук, 2016
The increasing amount of wastes produced by the manufacturing engineering, as well as their physical and mechanical properties and restorability provide a search for sphere of their application.
Y. S. Povstyana, I. V. Saviuk, L. M. Samchuk, N. T. Zubovetska   +3 more
doaj  

Apatite in Bennu samples indicates multiple stages of aqueous alteration

Meteoritics &Planetary Science, Volume 61, Issue 3, Page 504-521, March 2026.
Abstract Calcium phosphates are ubiquitous in planetary materials, including samples returned from asteroid Bennu by the OSIRIS‐REx mission. We characterized apatite [Ca5(PO4)3(F,Cl,OH)] grains in Bennu samples by scanning electron microscopy, electron microprobe analysis, and transmission electron microscopy to investigate their compositions, mineral ...
Laura B. Seifert, T. M. Erickson, L. P. Keller, J. J. Barnes, K. Thomas‐Keprta, L. Le, J. Gorce, Z. Rahman, T. J. Zega, H. C. Connolly Jr, D. S. Lauretta   +10 more
wiley   +1 more source

X‐ray computed tomography study of terrestrial analog cores in preparation for Mars sample return

Meteoritics &Planetary Science, Volume 61, Issue 3, Page 405-426, March 2026.
Abstract Mars Sample Return (MSR) is expected to transform planetary science by providing unprecedented access to pristine Martian material. Initial characterization in the sample receiving facility (SRF) will rely on nondestructive techniques such as X‐ray computed tomography (XCT) to document the condition, distribution, and internal features of ...
Sophie Benaroya, Christopher D. K. Herd, David T. Flannery, Nicolas Randazzo   +3 more
wiley   +1 more source