Search Results - "Gruener, J.E"

Hematite spherules in basaltic tephra altered under aqueous, acid-sulfate conditions on Mauna Kea volcano, Hawaii: Possible clues for the occurrence of hematite-rich spherules in the Burns formation at Meridiani Planum, Mars by Morris, R.V., Ming, D.W., Graff, T.G., Arvidson, R.E., Bell, J.F., Squyres, S.W., Mertzman, S.A., Gruener, J.E., Golden, D.C., Le, L., Robinson, G.A.

“…Iron-rich spherules (> 90% Fe 2O 3 from electron microprobe analyses) ∼10–100 μm in diameter are found within sulfate-rich rocks formed by aqueous,…”
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Nitrification in a zeoponic substrate by McGilloway, R.L, Weaver, R.W, Ming, D.W, Gruener, J.E

“…Clinoptilolite is a zeolite mineral with high cation exchange capacity used in zeoponic substrates that have been proposed as a solid medium for growing plants…”
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JSC-Rocknest: A large-scale Mojave Mars Simulant (MMS) based soil simulant for in-situ resource utilization water-extraction studies by Clark, J.V., Archer, P.D., Gruener, J.E., Ming, D.W., Tu, V.M., Niles, P.B., Mertzman, S.A.

“…The Johnson Space Center-Rocknest (JSC-RN) simulant was developed in response to a need by NASA's Advanced Exploration Systems (AES) In-Situ Resource…”
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NASA Desert RATS 2010: Preliminary results for science operations conducted in the San Francisco Volcanic Field, Arizona by Gruener, J.E., Lofgren, G.E., Bluethmann, W.J., Abercromby, A.F.

“…The National Aeronautics and Space Administration (NASA) is working with international partners to develop the space architectures and mission plans necessary…”
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Plant productivity and characterization of zeoponic substrates after three successive crops of radish ( Raphanus sativus L.) by Gruener, J.E., Ming, D.W., Galindo, C., Henderson, K.E., Golden, D.C.

“…The National Aeronautics and Space Administration (NASA) has developed a zeolite-based synthetic substrate, termed zeoponics. The zeoponic substrate…”
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