J
J. M. Williams
Researcher at University of New Mexico
Publications - 10
Citations - 750
J. M. Williams is an academic researcher from University of New Mexico. The author has contributed to research in topics: Mars Exploration Program & Impact crater. The author has an hindex of 6, co-authored 10 publications receiving 582 citations. Previous affiliations of J. M. Williams include Western Washington University.
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Mineralogy of a Mudstone at Yellowknife Bay, Gale Crater, Mars
David T. Vaniman,David L. Bish,Douglas W. Ming,Thomas F. Bristow,Richard V. Morris,David F. Blake,Steve J. Chipera,Shaunna M. Morrison,Allan H. Treiman,Elizabeth B. Rampe,Melissa S. Rice,C. Achilles,John P. Grotzinger,Scott M. McLennan,J. M. Williams,James F. Bell,H. E. Newsom,Robert T. Downs,Sylvestre Maurice,Philippe Sarrazin,Albert S. Yen,J. M. Morookian,Jack D. Farmer,K. M. Stack,Ralph E. Milliken,Bethany L. Ehlmann,Dawn Y. Sumner,Gilles Berger,Joy A. Crisp,Joel A. Hurowitz,Robert S. Anderson,David J. Des Marais,Edward M. Stolper,Kenneth S. Edgett,Sunetra Gupta,N. Spanovich +35 more
TL;DR: Sedimentary rocks at Yellowknife Bay (Gale crater) on Mars include mudstone sampled by the Curiosity rover, indicating that clay mineral formation on Mars extended beyond Noachian time.
Journal ArticleDOI
Mars Extant Life: What's Next? Conference Report.
David Beaty,M. A. Meyer,J. G. Blank,Luoth Chou,Luoth Chou,Shiladitya DasSarma,David J. Des Marais,J. L. Eigenbrode,Natalie Grefenstette,Nina Lanza,Andrew C. Schuerger,Petra Schwendner,H. D. Smith,Carol R. Stoker,J. D. Tarnas,Kevin D. Webster,Corien Bakermans,Bonnie K. Baxter,M. S. Bell,S. A. Benner,H. H. Bolivar Torres,P. Boston,R. Bruner,B. C. Clark,Priya DasSarma,Aaron E. Engelhart,Z. E. Gallegos,Zachary Garvin,Patrick J. Gasda,J. H. Green,Rachel L. Harris,M. Hoffman,Thomas L. Kieft,A. H. D. Koeppel,P. A. Lee,Xiang Li,Kennda Lynch,Rachel Mackelprang,Paul R. Mahaffy,Larry Matthies,M. A. Nellessen,Horton E. Newsom,Diana E. Northup,B. R. W. O'Connor,Scott Perl,Richard C. Quinn,Laura Rowe,Boris Sauterey,Mark A. Schneegurt,Dirk Schulze-Makuch,L. A. Scuderi,Michael N. Spilde,Vlada Stamenkovic,J. A. Torres Celis,D. Viola,Brian D. Wade,C. J. Walker,Roger C. Wiens,Amy J. Williams,J. M. Williams,Jie Xu +60 more
TL;DR: It is concluded that the key to the search for martian extant life lies in identifying and exploring refugia (“oases”), where conditions are either permanently or episodically significantly more hospitable than average.
Journal ArticleDOI
ChemCam results from the Shaler outcrop in Gale crater, Mars
Ryan B. Anderson,John Bridges,Amy J. Williams,Lauren A. Edgar,Ann Ollila,J. M. Williams,Marion Nachon,Nicolas Mangold,Martin R. Fisk,Juergen Schieber,Sanjeev Gupta,Gilles Dromart,Roger C. Wiens,S. Le Mouélic,Olivier Forni,Olivier Forni,Nina Lanza,A. Mezzacappa,Violaine Sautter,Diana L. Blaney,B. C. Clark,Samuel M. Clegg,Olivier Gasnault,Olivier Gasnault,Jérémie Lasue,Jérémie Lasue,Richard Leveille,Eric Lewin,Kevin W. Lewis,S. Maurice,S. Maurice,H. E. Newsom,Susanne P. Schwenzer,D. T. Vaniman +33 more
TL;DR: The ChemCam campaign at the fluvial sedimentary outcrop "Shaler" as mentioned in this paper resulted in observations of 28 non-soil targets, 26 of which included active laser induced breakdown spectroscopy (LIBS), and all of which including Remote Micro-Imager (RMI) images.
Journal ArticleDOI
Gale crater and impact processes – Curiosity’s first 364 Sols on Mars
Horton E. Newsom,Nicolas Mangold,Linda C. Kah,J. M. Williams,Raymond E. Arvidson,Nathan Stein,Ann Ollila,John Bridges,Susanne P. Schwenzer,Penelope L. King,John A. Grant,Patrick Pinet,Nathan T. Bridges,Fred Calef,Roger C. Wiens,John G. Spray,David T. Vaniman,Wolf E. Elston,Jeff A. Berger,James B. Garvin,Marisa C. Palucis +20 more
TL;DR: In this paper, the effect of impacts on basement outcrops may include loose blocks of sandstone and conglomerate, and disrupted (fractured) sedimentary layers, which are not obviously displaced by erosion.
Geologic Mapping of the Mars Science Laboratory Landing Ellipse
Fred Calef,B. Dietrich,Lauren A. Edgar,Jack D. Farmer,Abigail A. Fraeman,John P. Grotzinger,Marisa C. Palucis,T. J. Parker,Melissa S. Rice,Scott K. Rowland,K. M. Stack,Dawn Y. Sumner,J. M. Williams,Gale Quad Mapping Team,Gale Mapping Workgroup +14 more