Electron Microprobe Analysis and X-ray Diffraction Methods in Archaeometry: Investigations on Pre-Islamic Beads from the Sultanate of Oman [PDF]
, 1997 Beads from graves of the Samad Assemblage, Sultanate of Oman and from an ancient crafts quarter of the old kingdom of Ruhana, in Sri Lanka, were investigated using electron analysis and X-ray powder diffraction.
Hannibal, Anne +4 more
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Surface Clay and Mineral Exploration Using Hyperspectral Imaging: Advanced Techniques for Geospatial Analysis [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information SciencesThis research investigates the application of hyperspectral imaging (HSI) for surface clay and mineral exploration, specifically targeting kaolin, hematite, saponite, and illite in the Udaipur region of Rajasthan, India an area known for its complex and ...
S. Raut +8 more
doaj +1 more source
Ambient and cold-temperature infrared spectra and XRD patterns of ammoniated phyllosilicates and carbonaceous chondrite meteorites relevant to Ceres and other solar system bodies [PDF]
, 2018 Mg‐phyllosilicate‐bearing, dark surface materials on the dwarf planet Ceres have NH_4‐bearing materials, indicated by a distinctive 3.06 μm absorption feature.
Ammannito, Eleonora +6 more
core
Insights into secondary reactions occurring during atmospheric ablation of micrometeoroids [PDF]
, 2016 Ablation of micrometeoroids during atmospheric entry yields volatile gases such as water, carbon dioxide, and sulfur dioxide, capable of altering atmospheric chemistry and hence the climate and habitability of the planetary surface.
Court, RW, Tan, J
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Chitosan-Modified Smectite Clay and Study on Adsorption- Desorption of Urea
Chemical Engineering Transactions, 2017 This work presented a laboratory studies on the preparation of chitosan-modified clay and the study on urea adsorption-desorption. Modified clay was prepared by intercalating chitosan into layer structure of smectite clay; saponite and montmorillonite ...
A. Puspita, G. Prawati, I. Fatimah
doaj +1 more source
Characterization of phyllosilicates observed in the central Mawrth Vallis region, Mars, their potential formational processes, and implications for past climate [PDF]
, 2009 Mawrth Vallis contains one of the largest exposures of phyllosilicates on Mars. Nontronite, montmorillonite, kaolinite, and hydrated silica have been identified throughout the region using data from the Compact Reconnaissance Imaging Spectrometer for ...
Bibring, Jean-Pierre +9 more
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The beidellite-saponite series: an experimental approach
European Journal of Mineralogy, 1993 The study of the octahedral Al-Mg series in smectites was conducted using synthesis methods at 200-250°C. All synthesized clays were tetrahedrally charged thus leading to a solid-solution between beidellite and saponite end-members. The TEM chemical microanalyses indicated that the Al-Mg series was continuous between these two end-members without ...
Olivier Grauby +3 more
openaire +1 more source
JIF (Jurnal Ilmu Fisika), 2013 Sifat magnet yang ditentukan pada penelitian ini adalah suseptibilitas magnetik dan kandungan mineral pasir besi. Persentase massa pasir besi yang terdapat di dalam pasir di lokasi penelitian tidak merata dengan nilai berkisar antara 5,01% dan 20,26 ...
Afdal Afdal
doaj +1 more source
Aqueous Alteration in the Kuiper Belt: Evidence from Hydrated Interplanetary Dust Particles [PDF]
Edgeworth-Kuiper belt objects (EKBOs) formed in the outer reaches of the protoplanetary disk and thus avoided much of the high tempera-ture processing experienced by bodies in the inner solar system.
Keller, L. P., Snead, C. J.
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The nontronite-saponite series: An experimental approach
European Journal of Mineralogy, 1994 The study of the octahedral Fe-Mg substitution in smectites was conducted using clay synthesis at 200°C. Mossbauer data revealed that only ferric iron occurs in synthesized smectites. The studied series is then obviously heterovalent. All synthesized clays were tetrahedrally charged leading to structural formulae varying between nontronite and saponite
Olivier Grauby +3 more
openaire +1 more source