Results 41 to 50 of about 892,606 (318)

SNR-calibrated Type Ia supernova models [PDF]

, 2019
Current Type Ia supernova (SN Ia) models can reproduce most visible+IR + UV observations. In the X-ray band, the determination of elemental abundance ratios in supernova remnants (SNRs) through their spectra has reached enough precision to constrain SN ...
Badenes Montoliu, Carles, Bravo Guil, Eduardo, Martinez Rodriguez, Hector   +2 more
core   +2 more sources

Sulfur isotopes from the Paleoproterozoic Francevillian Basin record multigenerational pyrite formation, not depositional conditions

Communications Earth & Environment
Bulk-rock sulfur isotope data from pyrite in the ~2.1 billion-year sedimentary rocks of the Francevillian Basin, Gabon, have underpinned ideas about initial oxygenation of Earth’s surface environments and eukaryote evolution.
K. Paiste, David A. Fike, Karen Bakakas Mayika, M. Moussavou, A. Lepland, A. Prave, Tomohiko Sato, Yuichiro Ueno, Y. Sawaki, Jocelyn A. Richardson, R. S. Wood, Clive Jones, Samuel M. Webb, K. Kirsimäe   +13 more
semanticscholar   +1 more source

Sclerite formation in the hydrothermal-vent “scaly-foot” gastropod — possible control of iron sulfide biomineralization by the animal [PDF]

, 2006
A gastropod from a deep-sea hydrothermal field at the Rodriguez triple junction, Indian Ocean, has scale-shaped structures, called sclerites, mineralized with iron sulfides on its foot.
Chiba, Hitoshi, Endo, Kazuyoshi, Hashimoto, Jun, Hirata, Takafumi, Horikoshi, Koki, Kato, Yasuhiro, Kirschvink, Joseph L., Kogure, Toshihiro, Kopp, Robert E., Mizota, Chitoshi, Nealson, Kenneth H., Ozaki, Noriaki, Suga, Akinobu, Suzuki, Yohey, Takai, Ken, Tsuchida, Shinji   +15 more
core   +2 more sources

The Phosphorus/Sulfur Abundance Ratio as a Test of Galactic Cosmic-Ray Source Models [PDF]

, 2001
Galactic cosmic-ray (GCR) elemental abundances display a fractionation compared to solar-system values that appears ordered by atomic properties such as the first ionization potential (FIP) or condensation temperature (volatility).
Binns, W. R., Christian, E. R., Cummings, A. C., George, J. S., Hink, P. L., Leske, R. A., Mewaldt, R. A., Stone, E. C., von Rosenvinge, T. T., Wiedenbeck, M. E., Yanasak, N. E.   +10 more
core   +1 more source

The petrology and genesis of the Paleoproterozoic mafic intrusion-hosted Co-Cu-Ni deposit at Hietakero, NW Finnish Lapland [PDF]

Bulletin of the Geological Society of Finland, 2018
Cobalt is a highly sought-after metal due to its economic importance in many hightech applications. It is mainly obtained from sedimentary-hosted Cu-Co deposits and magmatic Ni-Cu deposits as a by-product. We describe a recently discovered Co-enriched Cu-
Konnunaho, J.P., Hanski, E.J., Karinen, T.T., Lahaye, Y., Makkonen, H.V.   +4 more
doaj   +1 more source

Kinetic model of carbonate dissolution in Martian meteorite ALH84001 [PDF]

, 2003
The magnetites and sulfides located in the rims of carbonate globules in the Martian meteorite ALH84001 have been claimed as evidence of past life on Mars.
Humayun, Munir, Kopp, Robert E.
core   +1 more source

Application of Stable Isotopes in Identifying the Sources and Formation of Sulfate and Nitrate in PM_2.5: A Review

Atmosphere
Sulfate and nitrate are important components of atmospheric PM2.5, which is the main contributor of haze. Therefore, studying the sources and formation mechanisms of atmospheric sulfate and nitrate is very important for the prevention and control of haze
Jiamei Peng, Chen Cheng, Shanshan Wang, Gongren Hu, Jinpei Yan, Ruilian Yu   +5 more
doaj   +1 more source

SULFUR ISOTOPIC COMPOSITION OF SULFIDES FROM THE DESTRUCTION PRODUCTS OF PALEOSMOKER FROM THE YUBILEYNOE VHMS DEPOSIT (SOUTHERN URALS) [PDF]

Минералогия, 2015
Variations in sulfur composition of sulfides from fragments of the paleosmoker chimneys, sulfide turbidites, and products of their seafloor alteration are determined.
A.S. Tseluyko, V.V. Maslennikov, N.R. Ayupova, S.A. Sadykov   +3 more
doaj  

Discovery of the Isotopes with 11 <= Z <= 19

, 2011
A total of 194 isotopes with 11 $\le$ Z $\le$ 19 have been identified to date. The discovery of these isotopes which includes the observation of unbound nuclei, is discussed.
Ajzenberg-Selove, Alvarez, Amaldi, Andersen, Artukh, Aston, Aston, Aston, Aston, Aston, Aston, Aston, Aston, Audi, Auger, Barton, Baumann, Benenson, Benenson, Benenson, Berg, Bethe, Birge, Boley, Bradner, Brosi, Butler, Cable, Cable, Cerny, Churchill, Cohen, Corson, Creutz, Curie, Curie, Dempster, Dempster, Détraz, Eckardt, Ellis, Fahlenbrach, Fermi, Frisch, Frisch, Ginepro, Glass, Goriely, Grahame, Grimm, Grévy, Guillemaud-Mueller, Guillemaud-Mueller, Hagberg, Hansen, Hardy, Hardy, Haslam, Hevesy, Hoag, Hollander, Huber, Huber, Huber, Huck, Hurst, Jelley, Joliot, Kashy, Katcoff, Kennedy, King, Klapisch, Klapisch, Klapisch, Kuerti, Kuroyanagi, Langevin, Langevin, Langevin, Larson, Lederer, Lewitowicz, Lindner, Lindner, Livingood, Lukyanov, M. Thoennessen, MacFarlane, Mantica, Marinov, McPherson, Meye, Miller, Morinaga, Morinaga, Morris, Mukha, Mulliken, Nethaway, Nier, Nier, Notani, Nurmia, Overstreet, Pollard, Pool, Reeder, Robertson, Robinson, Robinson, Robinson, Saint-Laurent, Sakurai, Sakurai, Seaborg, Seaborg, Sheline, Sheline, Snell, Strominger, Stähelin, Sun, Symons, Tarasov, Tarasov, Thoennessen, Turkevich, Tyren, Van Voorhis, Walke, Weimer, Westfall, White, White, Yaffe, Zeeman, Zerguerras, Zünti, Äystö   +139 more
core   +1 more source

Predictive isotope model connects microbes in culture and nature [PDF]

, 2014
In PNAS, Wing and Halevy (1) present a new model that quantitatively describes the magnitude of sulfur isotope fractionation produced by dissimilatory microbial sulfate reduction (MSR).
Bosak, Tanja, Ono, Shuhei, Sim, Min Sub
core   +1 more source