THE MARKER BAND IN GALE CRATER: A SYNTHESIS OF ORBITAL AND GROUND OBSERVATIONS - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2023

THE MARKER BAND IN GALE CRATER: A SYNTHESIS OF ORBITAL AND GROUND OBSERVATIONS

Edwin Kite
Juergen Schieber
  • Fonction : Auteur
  • PersonId : 1128711
Patrick J Gasda
W. W. Fischer
  • Fonction : Auteur
Joel M Davis
John A. Grant
  • Fonction : Auteur
  • PersonId : 884474
Ashwin Vasavada
Abigail Fraeman
Ralph Milliken
  • Fonction : Auteur
Elizabeth B. Rampe
  • Fonction : Auteur
  • PersonId : 1083056
Scott M Mclennan

Résumé

The “Marker Band” (previously called the Marker Bed and Marker Horizon [1-4]) in Gale crater is a distinctive indurated and dark-toned unit observed in the strata of Mount Sharp. From orbital data, the Marker Band (MB) was mapped across much of the western and southern edges of Mount Sharp, spanning over 80 km in distance and 1.6 km in elevation [4]. CRISM spectra of the MB show no hydration signatures and broad absorptions around ~1 and 2 μm interpreted to be from high-Ca pyroxene [4]. Favored origins for the MB based upon orbital observations included a more indurated sulfate, a sandstone, and a volcanic ash deposit. The Curiosity rover recently reached the MB and is now collecting critical in situ measurements to test these postulated and other origins and make new discoveries at the finer mm- to cm-scale that could not be assessed from orbital data. Here we provide a summary of several of the most crucial MB observations made by the rover thus far from sols 3640-3645 and 3668-present.
Fichier principal
Vignette du fichier
1560.pdf (2.19 Mo) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte

Dates et versions

hal-04052564 , version 1 (30-03-2023)

Identifiants

Citer

Catherine M. Weitz, Kevin W. Lewis, Edwin Kite, William E. Dietrich, Lucy M. Thompson, et al.. THE MARKER BAND IN GALE CRATER: A SYNTHESIS OF ORBITAL AND GROUND OBSERVATIONS. 54th Lunar and Planetary Science Conference, Lunar and Planetary Institute, Mar 2023, The Woodlands (Texas), United States. pp.1560. ⟨hal-04052564⟩
131 Consultations
24 Téléchargements

Partager

Gmail Facebook X LinkedIn More