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Lauren A. Edgar
Researcher at Arizona State University
Publications - 43
Citations - 1878
Lauren A. Edgar is an academic researcher from Arizona State University. The author has contributed to research in topics: Mars Exploration Program & Sedimentary depositional environment. The author has an hindex of 13, co-authored 38 publications receiving 1533 citations. Previous affiliations of Lauren A. Edgar include California Institute of Technology.
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Journal ArticleDOI
A habitable fluvio-lacustrine environment at Yellowknife Bay, Gale crater, Mars.
John P. Grotzinger,Dawn Y. Sumner,Linda C. Kah,K. M. Stack,Sanjeev Gupta,Lauren A. Edgar,David M. Rubin,Kevin W. Lewis,Juergen Schieber,Nicolas Mangold,Ralph E. Milliken,Pamela G. Conrad,David J. DesMarais,Jack D. Farmer,Kirsten L. Siebach,Fred Calef,Joel A. Hurowitz,Scott M. McLennan,Douglas W. Ming,David T. Vaniman,Joy A. Crisp,Ashwin R. Vasavada,Kenneth S. Edgett,Michael C. Malin,David F. Blake,Ralf Gellert,Paul R. Mahaffy,Roger C. Wiens,Sylvestre Maurice,John A. Grant,Sharon A. Wilson,Robert C. Anderson,Luther W. Beegle,Raymond E. Arvidson,Bernard Hallet,R. S. Sletten,Melissa S. Rice,James F. Bell,J. L. Griffes,Bethany L. Ehlmann,Ryan B. Anderson,Thomas F. Bristow,William E. Dietrich,Gilles Dromart,Jennifer L. Eigenbrode,Abigail A. Fraeman,Craig Hardgrove,K. E. Herkenhoff,Louise Jandura,Gary Kocurek,Seungwon Lee,Laurie A. Leshin,Richard Leveille,Daniel Limonadi,Justin N. Maki,Scott McCloskey,M. A. Meyer,Michelle E. Minitti,Horton E. Newsom,Dorothy Z. Oehler,Avi Okon,Marisa C. Palucis,T. J. Parker,Scott K. Rowland,Mariek E. Schmidt,S. W. Squyres,Andrew Steele,Edward M. Stolper,Roger E. Summons,Allan H. Treiman,Rebecca M. E. Williams,A. Yingst +71 more
TL;DR: The Curiosity rover discovered fine-grained sedimentary rocks, which are inferred to represent an ancient lake and preserve evidence of an environment that would have been suited to support a martian biosphere founded on chemolithoautotrophy.
Journal ArticleDOI
Elemental Geochemistry of Sedimentary Rocks at Yellowknife Bay, Gale Crater, Mars.
Scott M. McLennan,Ryan B. Anderson,James F. Bell,John Bridges,Fred Calef,John Campbell,B. C. Clark,Samuel M. Clegg,Pamela G. Conrad,Agnes Cousin,David J. Des Marais,Gilles Dromart,M. D. Dyar,Lauren A. Edgar,Bethany L. Ehlmann,Cécile Fabre,Olivier Forni,Olivier Gasnault,Ralf Gellert,S. Gordon,John A. Grant,John P. Grotzinger,Sanjeev Gupta,K. E. Herkenhoff,Joel A. Hurowitz,Penelope L. King,S. Le Mouélic,Laurie A. Leshin,Richard Leveille,Kevin W. Lewis,Nicolas Mangold,Sylvestre Maurice,Douglas W. Ming,Richard V. Morris,Marion Nachon,Horton E. Newsom,Ann Ollila,G. M. Perrett,Melissa S. Rice,Mariek E. Schmidt,Susanne P. Schwenzer,K. M. Stack,Edward M. Stolper,Dawn Y. Sumner,Allan H. Treiman,Scott VanBommel,David T. Vaniman,Ashwin R. Vasavada,Roger C. Wiens,R. A. Yingst +49 more
TL;DR: The absence of predicted geochemical variations indicates that magnetite and phyllosilicates formed by diagenesis under low-temperature, circumneutral pH, rock-dominated aqueous conditions during the early history of Mars.
Journal ArticleDOI
Exploration of Victoria crater by the Mars rover Opportunity.
Steven W. Squyres,Andrew H. Knoll,Raymond E. Arvidson,J. W. Ashley,James F. Bell,Wendy M. Calvin,Philip R. Christensen,Benton C. Clark,Barbara A. Cohen,P. A. de Souza,Lauren A. Edgar,William H. Farrand,Iris Fleischer,R. Gellert,Matthew P. Golombek,John A. Grant,John P. Grotzinger,Alexander G. Hayes,Kenneth E. Herkenhoff,Jeffrey R. Johnson,Bradley L. Jolliff,Göstar Klingelhöfer,A. T. Knudson,R. Li,Timothy J. McCoy,Scott M. McLennan,D. W. Ming,David W. Mittlefehldt,Richard V. Morris,J. W. Rice,Christian Schröder,R. J. Sullivan,Albert S. Yen,R. A. Yingst +33 more
TL;DR: Analysis of rocks in the walls of Victoria reveals that the aqueous alteration processes that operated at Eagle and Endurance also acted at Victoria, and sedimentary layering in the crater walls preserves evidence of ancient windblown dunes.
Journal ArticleDOI
Geochemical diversity in first rocks examined by the Curiosity Rover in Gale Crater: Evidence for and significance of an alkali and volatile‐rich igneous source
Mariek E. Schmidt,John Campbell,Ralf Gellert,G. M. Perrett,Allan H. Treiman,Diana L. Blaney,A. Olilla,Fred Calef,Lauren A. Edgar,B. Elliott,John P. Grotzinger,John P. Grotzinger,Joel A. Hurowitz,Penelope L. King,Michelle E. Minitti,Violaine Sautter,K. M. Stack,Jeff A. Berger,John Bridges,Bethany L. Ehlmann,Bethany L. Ehlmann,Olivier Forni,L. A. Leshin,Kevin W. Lewis,Scott M. McLennan,D. W. Ming,Horton E. Newsom,I. Pradler,S. W. Squyres,Edward M. Stolper,Lucy M. Thompson,Scott VanBommel,Roger C. Wiens +32 more
TL;DR: The first four rocks examined by the Mars Science Laboratory Alpha Particle X-ray Spectrometer indicate that Curiosity landed in a lithologically diverse region of Mars as discussed by the authors, collectively dubbed the Bradbury assemblage, were studied along an eastward traverse.
Journal ArticleDOI
Diagenetic origin of nodules in the Sheepbed member, Yellowknife Bay formation, Gale crater, Mars
K. M. Stack,John P. Grotzinger,Linda C. Kah,Mariek E. Schmidt,N. Mangold,Kenneth S. Edgett,Dawn Y. Sumner,Kirsten L. Siebach,Marion Nachon,R. E. Lee,Diana L. Blaney,Lauren DeFlores,Lauren A. Edgar,Alberto G. Fairén,Laurie A. Leshin,Sylvestre Maurice,Dorothy Z. Oehler,Melissa S. Rice,Roger C. Wiens +18 more
TL;DR: In this paper, the authors used the Curiosity rover to determine the size, shape, and spatial distribution of the Sheepbed nodules and interpreted them as concretions formed during early diagenesis.