Results 21 to 30 of about 2,594 (147)

Back-reacted saponite in Jurassic mudstones and limestones intruded by a Tertiary sill, Isle of Skye [PDF]

, 2005
The Lón Ostatoin stream section, Trotternish Peninsula, Isle of Skye, exposes a sequence of Middle Jurassic mudstones and limestones which have been locally metasomatized by a transgressive sill of Tertiary age. Limestones in the sequence, including some
Alt, Barton, Brown, C. A. Rochelle, Deer, Emeleus, Guven, Hoffman, Hudson, Hudson, Hudson, Iijima, Inglethorpe, Kerrick, Kuchta, Merriman, Merriman, Merriman, Moore, Perrin, R. J. Merriman, Richey, S. J. Kemp, Thrasher, Tracy   +24 more
core   +2 more sources

A Two-Step K-Ar Experiment on Mars: Dating the Diagenetic Formation of Jarosite from Amazonian Groundwaters [PDF]

, 2017
Following K-Ar dating of a mudstone and a sandstone, a third sample has been dated by the Curiosity rover exploring Gale Crater. The Mojave 2 mudstone, which contains relatively abundant jarosite, yielded a young K-Ar bulk age of 2.57 ± 0.39 Ga (1σ ...
Amirkhanoff, Anderson, Bibring, Bischoff, Bish, Blake, Bogard, Bridges, Bristow, Brophy, Cannon, Cassata, Cassata, Changela, Deer, Dehouck, Dekov, Dutrizac, Dutrizac, Ehlmann, Ehlmann, Evernden, Farley, Fassett, Freissinet, Glavin, Gombosi, Grant, Grotzinger, Grotzinger, Halliday, Hamilton, Hartmann, Hartmann, Hartmann, Hassanipak, Hicks, Humayun, Kula, Lee, Leitner, Lofgren, Madden, Mahaffy, Martín-Torres, McEwen, McEwen, McEwen, McSween, Mees, Ming, Minitti, Morris, Morrison, Nachon, Nachon, Nimmo, Nyquist, Ojha, Ojha, Papike, Rampe, Renne, Renne, Robbins, Schwenzer, Siebach, Singer, Smits, Stack, Sutter, Swindle, Thomson, Treiman, Treiman, Treiman, Vaniman, Vasconcelos, Vasconcelos, Wolff-Boenisch   +79 more
core   +2 more sources

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, Hock, Rainer, Rösch, Cordelia, Schüssler, Ulrich, Yule, Paul   +4 more
core   +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, Bishop, Janice L., Dobrea, Eldar Z. Noe, Ehlmann, Bethany L., McKeown, Nancy K., Murchie, Scott L., Mustard, John F., Parente, Mario, Silver, Eli A., Swayze, Gregg A.   +9 more
core   +2 more sources

Apatite in Bennu samples indicates multiple stages of aqueous alteration

Meteoritics &Planetary Science, EarlyView.
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

Ancient hydrothermal seafloor deposits in Eridania basin on Mars [PDF]

, 2017
Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original ...
A Molina, A Márquez, AD Howard, BC Hahn, BL Ehlmann, BL Ehlmann, BM Hynek, CE Manning, CI Fassett, CI Fassett, CI Fassett, CS Edwards, DC Catling, EZ Noe Dobrea, GG Michael, GJ Taylor, J Bishop, J Carter, J Carter, J Cuadros, J Cuadros, JA Grant, JEP Connerney, JJ Wray, JL Bishop, JL Bishop, JR Michalski, JR Michalski, L Kerber, L Wendt, M Cintala, M Pajola, MM Osterloo, MT Rosing, NJ Tosca, P Nimis, PJ McGovern, R Greeley, RE Milliken, RG Burns, RG Burns, RP Irwin, RP Irwin, S Adeli, SJ Mojzsis, TD Glotch, VM Dekov, WK Hartmann, WM Calvin, Y Ohtomo   +49 more
core   +1 more source

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

Meteoritics &Planetary Science, EarlyView.
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

The origin and implications of clay minerals from Yellowknife Bay, Gale crater, Mars [PDF]

, 2015
The Mars Science Laboratory (MSL) rover Curiosity has documented a section of fluvio-lacustrine strata at Yellowknife Bay (YKB), an embayment on the floor of Gale crater, approximately 500 m east of the Bradbury landing site. X-ray diffraction (XRD) data
Bristow, Thomas F., Ehlmann, Bethany L., Grotzinger, John P.   +2 more
core   +1 more source

Clay Reimagined: Phyllosilicates as Future Membrane Technologies

Advanced Materials Interfaces, Volume 13, Issue 3, 3 February 2026.
Recent advancements in membrane technologies based on 2D materials have drawn attention for molecular‐scale separations owing to these materials’ tunable nanoscale interlayer properties. Phyllosilicates, natural and abundant layered clay minerals, have emerged as scalable and cost‐effective candidates.
Min A Kim, Yining Liu, Austin J. Booth, Kelsey B. Hatzell, Seth B. Darling   +4 more
wiley   +1 more source

Gels as battery separators for soluble electrode cells [PDF]

, 1977
Gels are formed from silica powders and hydrochloric acid. The gels are then impregnated into a polymeric foam and the resultant sheet material is then used in applications where the transport of chloride ions is desired.
Gahn, R. F., Sheibley, D. W.
core   +1 more source