Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Christopher T. Adcock"'
Autor:
Leena M. Cycil, Elisabeth M. Hausrath, Douglas W. Ming, Christopher T. Adcock, James Raymond, Daniel Remias, Warren P. Ruemmele
Publikováno v:
Frontiers in Microbiology, Vol 12 (2021)
With long-term missions to Mars and beyond that would not allow resupply, a self-sustaining Bioregenerative Life Support System (BLSS) is essential. Algae are promising candidates for BLSS due to their completely edible biomass, fast growth rates and
Externí odkaz:
https://doaj.org/article/a5545d00b812491390cf88abd008ca10
Autor:
Seth R. Gainey, Elisabeth M. Hausrath, Christopher T. Adcock, Oliver Tschauner, Joel A. Hurowitz, Bethany L. Ehlmann, Yuming Xiao, Courtney L. Bartlett
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-7 (2017)
In the Gale Crater on Mars, organic matter has been detected, but in much lower concentrations than expected. Here, the authors conduct clay mineral synthesis experiments which suggest that clay minerals may rapidly form under oxidized conditions and
Externí odkaz:
https://doaj.org/article/52d9dfed9ff74870ae5dac31862aae26
Autor:
Christopher T. Adcock, Elisabeth M. Hausrath, Elizabeth B. Rampe, Hexiong Yang, Robert T. Downs
Publikováno v:
American Mineralogist. 108:430-438
Investigations of planetary processes using phosphate minerals often focus on igneous, recrystallized, or potentially metasomatized minerals, likely as a result of the minerals commonly available for study within meteorites and lunar samples. However
Autor:
Antonio Lanzirotti, Elisabeth M. Hausrath, James A. Raymond, Shichun Huang, Charity M. Phillips-Lander, Matthew Newville, Oliver Tschauner, Christopher T. Adcock, Zoë R. Harrold, Arlaine Sanchez
Publikováno v:
Geomicrobiology Journal. 37:572-581
Snow algae growth and mineral dust deposition are both known to strongly decrease snow albedo. Previous work has shown snow algae growth is enhanced in the presence of trace nutrient-containing min...
Autor:
Courtney L. Bartlett, Arya Udry, Elisabeth M. Hausrath, Zoë R. Harrold, Shichun Huang, Christopher T. Adcock
Publikováno v:
Astrobiology. 18:1543-1558
Phosphate is an essential nutrient for life on Earth, present in adenosine triphosphate (ATP), deoxyribonucleic acid (DNA), ribonucleic acid (RNA), and phospholipid membranes. Phosphorus does not have a significant volatile phase, and its release fro
Autor:
Francis M. McCubbin, Christopher T. Adcock, Marc Fries, Elisabeth M. Hausrath, Brian L. Phillips, John Vaughn, Viorel Atudorei, Andrew Steele, Kimberly T. Tait, Kathleen E. Vander Kaaden
Publikováno v:
American Mineralogist. 103:1319-1328
Bobdownsite, IMA number 2008-037, was approved as a new mineral by the Commission on New Minerals, Nomenclature and Classification (CNMNC) as the fluorine endmember of the mineral whitlockite. The type locality of bobdownsite is in Big Fish River, Yu
Publikováno v:
American Mineralogist. 103:502-516
Autor:
Kara Marsac, Christopher T. Adcock, Russell Malchow, Elisabeth M. Hausrath, Daniel A. Haber, Pamela C. Burnley
Publikováno v:
Journal of Environmental Radioactivity. 171:41-64
Aerial gamma ray surveys are an important tool for national security, scientific, and industrial interests in determining locations of both anthropogenic and natural sources of radioactivity. There is a relationship between radioactivity and geology
Autor:
Christopher T. Adcock, Daniel A. Haber, Pamela C. Burnley, Kara Marsac, Elisabeth M. Hausrath, Russell Malchow
Publikováno v:
Journal of Environmental Radioactivity. 165:68-85
This study compares high resolution forward models of natural gamma-ray background with that measured by high resolution aerial gamma-ray surveys. The ability to predict variations in natural background radiation levels should prove useful for those
Autor:
Christopher T. Adcock, Pamela C. Burnley, Elisabeth M. Hausrath, Daniel A. Haber, Russell Malchow
Publikováno v:
Journal of environmental radioactivity.
Aerial Gamma-Ray Surveys (GRS) are ideal for tracking anthropogenic gamma radiation releases and transport. The interpretation of a GRS can be complicated by natural gamma-ray sources such as atmospheric radon, cosmic rays, geologic materials, and ev