Zobrazeno 1 - 10
of 1 240
pro vyhledávání: '"M. Darby"'
Autor:
Elizabeth C. Sklute, Deborah A. Leopo, Kaylee A. Neat, Kenneth J. T. Livi, M. Darby Dyar, James F. Holden
Publikováno v:
Frontiers in Microbiology, Vol 14 (2023)
Some thermophilic bacteria from deep-sea hydrothermal vents grow by dissimilatory iron reduction, but our understanding of their biogenic mineral transformations is nascent. Mineral transformations catalyzed by the thermophilic iron-reducing bacteriu
Externí odkaz:
https://doaj.org/article/31d5a77346d54f7785de22d1e58e06b1
Autor:
Thomas H. Burbine, Iman Khanani, Deepika Kumawat, Ahlay Hussain, Sydney M. Wallace, M. Darby Dyar
Publikováno v:
The Planetary Science Journal, Vol 5, Iss 9, p 194 (2024)
The most widely used method to spectrally classify asteroids is the Bus–DeMeo taxonomy. To test how well the Bus–DeMeo taxonomy groups asteroids on the basis of their mineralogy, we have classified ∼1500 meteorite spectra using this Bus–DeMeo
Externí odkaz:
https://doaj.org/article/c4cb24bbd4df48fd9f3e209c9da61765
Autor:
Melissa D. Lane, Edward A. Cloutis, Roger N. Clark, M. Darby Dyar, Joern Helbert, Amanda R. Hendrix, Gregory Holsclaw, Alessandro Maturilli, Neil Pearson, Mikki Osterloo, Faith Vilas, Daniel Applin
Publikováno v:
The Planetary Science Journal, Vol 5, Iss 8, p 189 (2024)
This paper presents far-ultraviolet through mid-infrared (0.12–20 μ m) reflectance spectra of 27 fine-particulate (
Externí odkaz:
https://doaj.org/article/fbba0dbe37a04e4d990fd93900ee7f44
Autor:
Elizabeth C. Sklute, Jill A. Mikucki, M. Darby Dyar, Peter A. Lee, Ken J. T. Livi, Sarina Mitchell
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 9 (2022)
Aperiodic discharge of brine at Blood Falls forms a red-tinged fan at the terminus of Taylor Glacier, Antarctica. Samples from this discharge provide an opportunity for mineralogical study at a Martian analogue study site. Environmental samples were
Externí odkaz:
https://doaj.org/article/530f8b5f996f4cf6a76f60efac13d5ef
Autor:
Reed J. Hopkins, Elizabeth C. Sklute, M. Darby Dyar, A. Deanne Rogers, Roger N. Clark, Rilla McKeegan
Publikováno v:
The Planetary Science Journal, Vol 4, Iss 9, p 173 (2023)
The Chemistry and Mineralogy X-ray diffraction (XRD) instrument aboard the Curiosity rover consistently identifies amorphous material at Gale Crater, which is compositionally variable, but often includes elevated sulfur and iron, suggesting that amor
Externí odkaz:
https://doaj.org/article/e623fa3f67da4505827980efa03ebf4c
Autor:
Rachel Y. Sheppard, Ralph E. Milliken, James M. Russell, Elizabeth C. Sklute, M. Darby Dyar, Hendrik Vogel, Martin Melles, Satria Bijaksana, Ascelina K. M. Hasberg, Marina A. Morlock
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 22, Iss 8, Pp n/a-n/a (2021)
Abstract Iron is the most abundant redox‐sensitive element on the Earth's surface, and the oxidation state, mineral host, and crystallinity of Fe‐rich phases in sedimentary systems can record details of water‐rock interactions and environmental
Externí odkaz:
https://doaj.org/article/db4347adc8f04c53b8af0e804582dce0
Publikováno v:
Frontiers in Microbiology, Vol 9 (2018)
Fe(III) (oxyhydr)oxides are electron acceptors for some hyperthermophilic archaea in mildly reducing geothermal environments. However, the kinds of iron oxides that can be used, growth rates, extent of iron reduction, and the morphological changes th
Externí odkaz:
https://doaj.org/article/49dd40d5133a40449c0071be0b72efad
Autor:
Liane Loiselle, Michael A. McCraig, M. Darby Dyar, Richard Léveillé, Sean R. Shieh, Gordon Southam
Publikováno v:
Life, Vol 8, Iss 4, p 61 (2018)
The acidic sulfate-rich waters of the Meridiani Planum region were potentially a habitable environment for iron-oxidizing bacteria on ancient Mars. If life existed in this ancient martian environment, jarosite minerals precipitating in these waters m
Externí odkaz:
https://doaj.org/article/d2e19a03e8e44e309f8b304eedb5fd21
Autor:
Cohen, Barbara A., Young, Kelsey E., Zellner, Nicolle E. B., Zacny, Kris, Yingst, R. Aileen, Watkins, Ryan N., Warwick, Richard, Valencia, Sarah N., Swindle, Timothy D., Robbins, Stuart J., Petro, Noah E., Nicoletti, Anthony, Moriarty, III, Daniel P., Lynch, Richard, Indyk, Stephen J., Gross, Juliane, Grier, Jennifer A., Grant, John A., Ginyard, Amani, Fassett, Caleb I., Farley, Kenneth A., Farcy, Benjamin J., Ehlmann, Bethany L., Dyar, M. Darby, Daelemans, Gerard, Curran, Natalie M., van der Bogert, Carolyn H., Arevalo, Jr, Ricardo D., Anderson, F. Scott
Geochronology, or determination of absolute ages for geologic events, underpins many inquiries into the formation and evolution of planets and our Solar System. Absolute ages of ancient and recent magmatic products provide strong constraints on the d
Externí odkaz:
http://arxiv.org/abs/2101.01131
Publikováno v:
In Icarus December 2023 406