Results 11 to 20 of about 194 (151)

Morphological Evolution of Metal-Organic Frameworks into Hedrite, Sheaf and Spherulite Superstructures with Localized Different Coloration. [PDF]

Chemistry
The hyperbranched metal‐organic superstructures reported here exhibit diverse morphologies, including hedrites, sheafs, and spherulites. These structures are formed via non‐crystallographic branching, which represents a distinct growth mechanism typically observed in many materials and is being reported for the first time in metal‐organic frameworks ...
Malik N, Shimon LJW, Houben L, Kossoy A, Pinkas I, Kaplan-Ashiri I, Bendikov T, Lahav M, van der Boom ME.   +8 more
europepmc   +2 more sources

Petrological Evolution and Mass Redistribution in Basaltic Fault Zones: An Example From the Faroe Islands, North Atlantic Igneous Province

Geochemistry, Geophysics, Geosystems, Volume 24, Issue 12, December 2023., 2023
Abstract Fault rock petrology exerts an important influence on the permeability structure and mechanical properties of fault zones. Slip‐related deformation on upper‐crustal faults in basaltic rocks is closely associated with fluid‐rock interaction, altering the distribution of physical properties within the fault.
Bob Bamberg, Marc K. Reichow, Richard J. Walker, Audrey Ougier‐Simonin   +3 more
wiley   +1 more source

Spectral Characterization of Parent Soils From Globally Important Dust Aerosol Entrainment Regions

Journal of Geophysical Research: Atmospheres, Volume 128, Issue 2, 27 January 2023., 2023
Abstract We investigated the variation in the mineralogical composition of surface soil samples from a wide range of atmospheric dust aerosol generating regions. These soils likely have mineral compositions similar to dust aerosols. We measured the visible, shortwave infrared (VSWIR) and long wave infrared (LWIR) reflectance spectra, as well as LWIR ...
Mohammad R. Sadrian, Wendy M. Calvin, Johann P. Engelbrecht, Hans Moosmüller   +3 more
wiley   +1 more source

Metamorphism and Deformation on Subduction Interfaces: 2. Petrological and Tectonic Implications

Geochemistry, Geophysics, Geosystems, Volume 24, Issue 1, January 2023., 2023
Abstract The compositional range of ∼2,000 marine sediments and ∼19,000 oceanic igneous rocks is encapsulated by a set of 12 sedimentary and 10 mafic rock compositions, allowing computation of phase relationships on P‐T paths along subduction interfaces. These are described economically by a partitioning analysis, which connects the mineral assemblages
Andrew J. Smye, Philip C. England
wiley   +1 more source

Simplified Automatic Atmospheric Correction for THEMIS Infrared Data

Earth and Space Science, Volume 9, Issue 9, September 2022., 2022
Abstract Thermal infrared spectral data from the Thermal Emission Imaging System (THEMIS) on Mars Odyssey can provide diagnostic information to characterize Martian surface compositions. Accurately isolating the atmospheric contribution from the thermal radiance of THEMIS data is essential for surface mineralogy analysis.
Cheng Ye, Cong Pan, Christopher S. Edwards, A. Deanne Rogers   +3 more
wiley   +1 more source

Analytical database of Martian minerals (ADaMM): Project synopsis and Raman data overview

Journal of Raman Spectroscopy, Volume 53, Issue 3, Page 364-381, March 2022., 2022
The Analytical Database of Martian Minerals (ADaMM) provides the scientific community with a comprehensive set of spectroscopic and diffractometric data collected from a wide collection of mineral phases relevant for Mars exploration. As much of the given data have been collected by analytical prototypes emulating the spectroscopic tools onboard ...
Marco Veneranda, Aurelio Sanz‐Arranz, Jose Antonio Manrique, Jesus Saiz, Clara Garcia‐Prieto, Elena Pascual‐Sánchez, Jesus Medina, Menelaos Konstantinidis, Emmanuel Lalla, Andoni Moral, Luis Miguel Nieto, Fernando Rull, Guillermo Lopez‐Reyes   +12 more
wiley   +1 more source

In situ and micro‐Raman spectroscopy for the identification of natural Sicilian zeolites

Journal of Raman Spectroscopy, Volume 53, Issue 3, Page 525-539, March 2022., 2022
Samples of Sicilian zeolites (i.e., analcime, chabazite, natrolite and phillipsite) from a private collection were tested with portable and fixed Raman spectrometers, equipped with 532‐ and 785‐nm laser sources. Local outcrops on the Eastern Sicilian coast are also tested with portable devices.
Claudio Finocchiaro, Alessia Coccato, Germana Barone, Danilo Bersani, Adam Culka, Laura Fornasini, Paolo Mazzoleni, Jan Jehlička, Anastasia Rousaki, Peter Vandenabeele   +9 more
wiley   +1 more source

Constraints on the formation of carbonates and low‐grade metamorphic phases in the Martian crust as a function of H2O‐CO2 fluids

Meteoritics &Planetary Science, Volume 57, Issue 1, Page 77-104, January 2022., 2022
Abstract Low‐grade metamorphic hydrous minerals and carbonates occur in various settings on Mars and in Martian meteorites. We present constraints on the stability of prehnite, zeolites, serpentine, and carbonates by modeling the influence of H2O‐CO2 fluids during low‐grade metamorphism in the Martian crust using compositions of a Martian basalt and an
Julia Semprich, Justin Filiberto, Allan H. Treiman, Susanne P. Schwenzer   +3 more
wiley   +1 more source

Hydrothermal alteration at the basalt‐hosted Vista Alegre impact structure, Brazil

Meteoritics &Planetary Science, Volume 56, Issue 12, Page 2155-2174, December 2021., 2021
Abstract Hydrothermal systems provide a possible habitat for early life and are key targets in the quest for life outside Earth. In impact craters on Mars, hydrous minerals can represent products of impact‐generated hydrothermal systems (IGHS) or minerals already present in the crust and exposed during impact‐caused excavation.
Jitse Alsemgeest, Fraukje M. Brouwer, Luis F. Auqué, Natalia Hauser, Wolf Uwe Reimold, John Spray   +5 more
wiley   +1 more source

Stellerite-stilbite and calcite paragenesis in a fracture cavity hosted by andesitic volcaniclastic rocks from the Timok magmatic complex [PDF]

Journal of Mining and Metallurgy. Section A: Mining
The Timok Magmatic Complex (TMC) is part of the Apuseni-Banat-Timok-Srednogorie magmatic arc within the Tethyan metallogenic belt, hosting world-class porphyry and epithermal copper-gold deposits.
Medic D., Štirbanović Z., Banješević M., Nedelkovski V., Stanković S., Cvetković A., Đorđievski S.   +6 more
doaj   +1 more source