Results 1 to 10 of about 9,098 (128)

A Photomicrographic Dataset of Rocks for the Accurate Classification of Minerals [PDF]

Scientific Data
Automated mineral identification in thin-section petrography remains challenging due to limited datasets capturing complete optical characteristics across crystallographic orientations.
Badr G. Amer, Hamdy M. Mousa, Maher Dawoud, Anas Youssef   +3 more
doaj   +2 more sources

SPITZER survey of dust grain processing in stable discs around binary post-AGB stars [PDF]

, 2008
Aims: We investigate the mineralogy and dust processing in the circumbinary discs of binary post-AGB stars using high-resolution TIMMI2 and SPITZER infrared spectra.
Acke, Aden, Bohren, Bouwman, Bouwman, Bradley, Bujarrabal, Bujarrabal, Bujarrabal, C. Gielen, Chesneau, Cohen, De Ruyter, Deroo, Deroo, Dorschner, Draine, Dullemond, Fabian, Gielen, Giridhar, Giridhar, Giridhar, Gledhill, Gonzalez, Gonzalez, Grynko, H. Van Winckel, Henning, Honda, Hony, Houck, Hrivnak, Jaeger, Kemper, Kessler-Silacci, Kurucz, Kwok, L. B. F. M. Waters, Lisse, Lloyd Evans, M. Min, Maas, Maas, Maas, Mastrodemos, Meixner, Menzies, Min, Min, Min, Min, Molster, Molster, Molster, Molster, Oudmaijer, Peeters, Raveendran, Reyniers, Roddier, Savage, Schertl, Schütz, Servoin, Shkuratov, Sofia, Steenman, Steenman, Szczerba, T. Lloyd Evans, Tielens, Toon, van Boekel, van Boekel, Van Kerckhoven, Van Winckel, Van Winckel, Van Winckel, Van Winckel, Van Winckel, Verhoelst, Waelkens, Waters, Waters, Waters, Werner   +86 more
core   +32 more sources

GC Insights: The crystal structures behind mineral properties – a case study of using TotBlocks in an undergraduate optical mineralogy lab [PDF]

Geoscience Communication, 2023
Spatial thinking represents an ongoing challenge in geoscience education, but concrete manipulatives can bridge this gap by illustrating abstract concepts.
D. D. V. Leung, D. D. V. Leung, P. E. dePolo   +2 more
doaj   +1 more source

Mineral dust cycle in the Multiscale Online Nonhydrostatic AtmospheRe CHemistry model (MONARCH) Version 2.0 [PDF]

Geoscientific Model Development, 2021
We present the dust module in the Multiscale Online Non-hydrostatic AtmospheRe CHemistry model (MONARCH) version 2.0, a chemical weather prediction system that can be used for regional and global modeling at a range of resolutions. The representations of
M. Klose, M. Klose, O. Jorba, M. Gonçalves Ageitos, M. Gonçalves Ageitos, J. Escribano, M. L. Dawson, M. L. Dawson, V. Obiso, V. Obiso, E. Di Tomaso, S. Basart, G. Montané Pinto, F. Macchia, P. Ginoux, J. Guerschman, C. Prigent, Y. Huang, Y. Huang, Y. Huang, J. F. Kok, R. L. Miller, C. Pérez García-Pando, C. Pérez García-Pando   +23 more
doaj   +1 more source

Aerosol Mineralogical Study Using Laboratory and IASI Measurements: Application to East Asian Deserts

Remote Sensing, 2022
East Asia is the second-largest mineral dust source in the world, after the Sahara. When dispersed in the atmosphere, mineral dust can alter the Earth’s radiation budget by changing the atmosphere’s absorption and scattering properties.
Perla Alalam, Lise Deschutter, Antoine Al Choueiry, Denis Petitprez, Hervé Herbin   +4 more
doaj   +1 more source

Optical-microphysical properties of Saharan dust aerosols and composition relationship using a multi-wavelength Raman lidar, in situ sensors and modelling: a case study analysis [PDF]

Atmospheric Chemistry and Physics, 2012
A strong Saharan dust event that occurred over the city of Athens, Greece (37.9° N, 23.6° E) between 27 March and 3 April 2009 was followed by a synergy of three instruments: a 6-wavelength Raman lidar, a CIMEL sun-sky radiometer and the MODIS sensor ...
A. Papayannis, R. E. Mamouri, V. Amiridis, E. Remoundaki, G. Tsaknakis, P. Kokkalis, I. Veselovskii, A. Kolgotin, A. Nenes, C. Fountoukis   +9 more
doaj   +1 more source

Global scale variability of the mineral dust long-wave refractive index: a new dataset of in situ measurements for climate modeling and remote sensing [PDF]

Atmospheric Chemistry and Physics, 2017
Modeling the interaction of dust with long-wave (LW) radiation is still a challenge because of the scarcity of information on the complex refractive index of dust from different source regions.
C. Di Biagio, P. Formenti, Y. Balkanski, L. Caponi, M. Cazaunau, E. Pangui, E. Journet, S. Nowak, S. Caquineau, M. O. Andreae, K. Kandler, T. Saeed, S. Piketh, D. Seibert, E. Williams, J.-F. Doussin   +15 more
doaj   +1 more source

Toward quantification of strain-related mosaicity in shocked lunar and terrestrial plagioclase by in situ micro-X-ray diffraction [PDF]

, 2015
Studies of shock metamorphism of feldspar typically rely on qualitative petrographic observations, which, while providing invaluable information, can be difficult to interpret.
Flemming, Roberta L., Osinski, Gordon R., Pickersgill, Annemarie E.   +2 more
core   +1 more source

Petrography and mineral chemistry of metamorphosed mantle peridotites of Nain Ophiolite (Central Iran)

Journal of Economic Geology, 2017
Introduction Study of the petrology of the ophiolites as the relics of ancient oceanic lithosphere, is a powerful tool to reconstruct Earth’s history. Mantle peridotites have mostly undergone alteration and serpentinization to some extent.
Nargess Shirdashtzadeh, Ghodrat Torabi, Ramin Samadi   +2 more
doaj   +1 more source

Shadows, gaps, and ring-like structures in protoplanetary disks [PDF]

, 2011
We study the structure of passively heated disks around T Tauri and Herbig Ae stars, and present a vectorized Monte Carlo dust radiative transfer model of protoplanetary disks. The vectorization provides a speed up factor of 100 when compared to a scalar
Acke, Alexander, Alexander, Asplund, Beckwith, Bertout, Bjorkman, Bouwman, Brown, Brown, Calvet, Charnoz, Chiang, Cieza, Draine, Draine, Dullemond, Dullemond, Dullemond, Dullemond, Dullemond, Dullemond, D’Alessio, Edgar, Eisner, Espaillat, F. Heymann, Fitzpatrick, Fleck, Fukagawa, Furlan, Furlan, Gail, Hayashi, Huelamo, Ida, Isella, Ivezic, Kalas, Kama, Kemper, Kenyon, Kessler-Silacci, Klahr, Krijt, Krügel, Lagrange, Lommen, Lommen, Lubow, Lucy, Malfait, Mayama, McCaughrean, Millan-Gabet, Min, Min, Miroshnichenko, Mizuno, Mulders, Muzerolle, Najita, Najita, Natta, Natta, Nomura, Oliveira, Olofsson, Ozernoy, Pascucci, Pinte, Pinte, Pinte, Pontoppidan, Pontoppidan, R. Siebenmorgen, Ratzka, Ricci, Robitaille, Robitaille, Schegerer, Schegerer, Schisano, Siebenmorgen, Siebenmorgen, Sterzik, Strom, Testi, Thalmann, Tielens, Tutukov, van Boekel, van den Ancker, Verhoeff, Vinkovic, Visser, Voshchinikov, Walker, Waters, Watson, Watson, Whitney, Witt, Wolf, Zubko   +104 more
core   +2 more sources