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Article Dans Une Revue Journal of Geophysical Research. Planets Année : 2023

Overview and Results From the Mars 2020 Perseverance Rover's First Science Campaign on the Jezero Crater Floor

Vivian Z Sun
Kevin P Hand
Kathryn M Stack
  • Fonction : Auteur
Ken A Farley
  • Fonction : Auteur
Justin I Simon
Claire Newman
Sunanda Sharma
  • Fonction : Auteur
Yang Liu
  • Fonction : Auteur
Roger C Wiens
Amy J Williams
  • Fonction : Auteur
Nicholas Tosca
Sanna Alwmark
Olivier Beyssac
Adrian Brown
Fred Calef
Emily L Cardarelli
Elise Clavé
Barbara Cohen
Andrea Corpolongo
Andrew D Czaja
Tyler del Sesto
  • Fonction : Auteur
Alberto Fairen
Teresa Fornaro
Thierry Fouchet
Brad Garczynski
  • Fonction : Auteur
Sanjeev Gupta
  • Fonction : Auteur
Chris D K Herd
Keyron Hickman‐lewis
  • Fonction : Auteur
Briony Horgan
Jeffrey Johnson
Kjartan Kinch
Tanya Kizovski
  • Fonction : Auteur
Rachel Kronyak
Robert Lange
  • Fonction : Auteur
Lucia Mandon
Sarah Milkovich
  • Fonction : Auteur
Robert Moeller
  • Fonction : Auteur
Jorge Núñez
Gerhard Paar
Guy Pyrzak
Cathy Quantin‐nataf
  • Fonction : Auteur
David L Shuster
  • Fonction : Auteur
Sandra Siljestrom
  • Fonction : Auteur
Andrew Steele
Michael Tice
  • Fonction : Auteur
Olivier Toupet
Arya Udry
Alicia Vaughan
  • Fonction : Auteur
Brittan Wogsland

Résumé

The Mars 2020 Perseverance rover landed in Jezero crater on 18 February 2021. After a 100-sol period of commissioning and the Ingenuity Helicopter technology demonstration, Perseverance began its first science campaign to explore the enigmatic Jezero crater floor, whose igneous or sedimentary origins have been much debated in the scientific community. This paper describes the campaign plan developed to explore the crater floor's Máaz and Séítah formations and summarizes the results of the campaign between sols 100-379. By the end of the campaign, Perseverance had traversed more than 5 km, created seven abrasion patches, and sealed nine samples and a witness tube. Analysis of remote and proximity science observations show that the Máaz and Séítah formations are igneous in origin and composed of five and two geologic members, respectively. The Séítah formation represents the olivine-rich cumulate formed from differentiation of a slowly cooling melt or magma body, and the Máaz formation likely represents a separate series of lava flows emplaced after Séítah. The Máaz and Séítah rocks also preserve evidence of multiple episodes of aqueous alteration in secondary minerals like carbonate, Fe/Mg phyllosilicates, sulfates, and perchlorate, and surficial coatings. Post-emplacement processes tilted the rocks near the Máaz-Séítah contact and substantial erosion modified the crater floor rocks to their present-day expressions. Results from this crater floor campaign, including those obtained upon return of the collected samples, will help to build the geologic history of events that occurred in Jezero crater and provide time constraints on the formation of the Jezero delta. Plain Language Summary The Mars 2020 Perseverance rover, along with the Ingenuity Helicopter technology demonstration, landed in Jezero crater, Mars on 18 February 2021. Here, we detail results from the first science campaign of the mission, the purpose of which was to explore the enigmatic Jezero crater floor. By the end of the campaign, Perseverance traversed more than 5 km, created seven abrasion patches, SUN ET AL.
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Dates et versions

hal-04135599 , version 1 (21-06-2023)

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Vivian Z Sun, Kevin P Hand, Kathryn M Stack, Ken A Farley, Justin I Simon, et al.. Overview and Results From the Mars 2020 Perseverance Rover's First Science Campaign on the Jezero Crater Floor. Journal of Geophysical Research. Planets, 2023, 128, ⟨10.1029/2022je007613⟩. ⟨hal-04135599⟩
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