Kenneth H Williford
Kenneth H Williford
Blue Marble Space Institute of Science
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Mars 2020 mission overview
KA Farley, KH Williford, KM Stack, R Bhartia, A Chen, M de la Torre, ...
Space Science Reviews 216, 1-41, 2020
In situ radiometric and exposure age dating of the Martian surface
KA Farley, C Malespin, P Mahaffy, JP Grotzinger, PM Vasconcelos, ...
science 343 (6169), 1247166, 2014
New insights into the origin of perylene in geological samples
K Grice, H Lu, P Atahan, M Asif, C Hallmann, P Greenwood, E Maslen, ...
Geochimica et Cosmochimica Acta 73 (21), 6531-6543, 2009
The NASA Mars 2020 rover mission and the search for extraterrestrial life
KH Williford, KA Farley, KM Stack, AC Allwood, D Beaty, LW Beegle, ...
From habitability to life on Mars, 275-308, 2018
Perseverance’s scanning habitable environments with Raman and luminescence for organics and chemicals (SHERLOC) investigation
R Bhartia, LW Beegle, L DeFlores, W Abbey, J Razzell Hollis, K Uckert, ...
Space Science Reviews 217 (4), 58, 2021
An extended organic carbon-isotope record across the Triassic–Jurassic boundary in the Queen Charlotte Islands, British Columbia, Canada
KH Williford, PD Ward, GH Garrison, R Buick
Palaeogeography, Palaeoclimatology, Palaeoecology 244 (1-4), 290-296, 2007
The imprint of atmospheric evolution in the D/H of Hesperian clay minerals on Mars
PR Mahaffy, CR Webster, JC Stern, AE Brunner, SK Atreya, PG Conrad, ...
Science 347 (6220), 412-414, 2015
Perseverance rover reveals an ancient delta-lake system and flood deposits at Jezero crater, Mars
N Mangold, S Gupta, O Gasnault, G Dromart, JD Tarnas, SF Sholes, ...
Science 374 (6568), 711-717, 2021
A field guide to finding fossils on Mars
S McMahon, T Bosak, JP Grotzinger, RE Milliken, RE Summons, M Daye, ...
Journal of Geophysical Research: Planets 123 (5), 1012-1040, 2018
Constraining atmospheric oxygen and seawater sulfate concentrations during Paleoproterozoic glaciation: In situ sulfur three-isotope microanalysis of pyrite from the Turee …
KH Williford, MJ Van Kranendonk, T Ushikubo, R Kozdon, JW Valley
Geochimica et Cosmochimica Acta 75 (19), 5686-5705, 2011
The science process for selecting the landing site for the 2020 Mars rover
JA Grant, MP Golombek, SA Wilson, KA Farley, KH Williford, A Chen
Planetary and Space Science 164, 106-126, 2018
Episodic photic zone euxinia in the northeastern Panthalassic Ocean during the end-Triassic extinction
AH Kasprak, J Sepúlveda, R Price-Waldman, KH Williford, SD Schoepfer, ...
Geology 43 (4), 307-310, 2015
Photogeologic map of the perseverance rover field site in Jezero Crater constructed by the Mars 2020 Science Team
KM Stack, NR Williams, F Calef, VZ Sun, KH Williford, KA Farley, S Eide, ...
Space Science Reviews 216, 1-47, 2020
Texture-specific isotopic compositions in 3.4 Gyr old organic matter support selective preservation in cell-like structures
K Lepot, KH Williford, T Ushikubo, K Sugitani, K Mimura, MJ Spicuzza, ...
Geochimica et Cosmochimica Acta 112, 66-86, 2013
Preservation and detection of microstructural and taxonomic correlations in the carbon isotopic compositions of individual Precambrian microfossils
KH Williford, T Ushikubo, JW Schopf, K Lepot, K Kitajima, JW Valley
Geochimica et Cosmochimica Acta 104, 165-182, 2013
Deep UV Raman spectroscopy for planetary exploration: The search for in situ organics
WJ Abbey, R Bhartia, LW Beegle, L DeFlores, V Paez, K Sijapati, ...
Icarus 290, 201-214, 2017
Aqueously altered igneous rocks sampled on the floor of Jezero crater, Mars
KA Farley, KM Stack, DL Shuster, BHN Horgan, JA Hurowitz, JD Tarnas, ...
Science 377 (6614), eabo2196, 2022
Sulfur-cycling fossil bacteria from the 1.8-Ga Duck Creek Formation provide promising evidence of evolution's null hypothesis
JW Schopf, AB Kudryavtsev, MR Walter, MJ Van Kranendonk, KH Williford, ...
Proceedings of the National Academy of Sciences 112 (7), 2087-2092, 2015
Biological regulation of atmospheric chemistry en route to planetary oxygenation
G Izon, AL Zerkle, KH Williford, J Farquhar, SW Poulton, MW Claire
Proceedings of the National Academy of Sciences 114 (13), E2571-E2579, 2017
Development of in situ sulfur four-isotope analysis with multiple Faraday cup detectors by SIMS and application to pyrite grains in a Paleoproterozoic glaciogenic sandstone
T Ushikubo, KH Williford, J Farquhar, DT Johnston, MJ Van Kranendonk, ...
Chemical Geology 383, 86-99, 2014
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