DISCOVERY OF LIGHT-TONED FLOAT ROCKS IN JEZERO CRATER: A TALE OF AQUEOUS ALTERATION AND HIGH-TEMPERATURE METAMORPHISM

Bedford, C. and Royer, Clement and Wiens, R. C. and Johnson, J. R. and Horgan, B. and Broz, A. and Forni, Olivier and Connell, S. and Mandon, Lucia and Kathir, B. S. and Hausrath, E. M. and Udry, Arya and Madariaga, J. M. and Dehouck, E. and Anderson, R. and Beck, Pierre and Beyssac, Olivier and Clave, Elise and Clegg, S. and Cloutis, E. and Fouchet, T. and Gabriel, Travis S. J. and Garczynski, B. J. and Kildaras, A. and Manelski, Henry and Mayhew, L. and Nunez, J. and Ollila, A M and Schröder, Susanne and Bell, J and Simon, J. and Wolf, U. and Stack, K. M. and Cousin, Agnes (2024) DISCOVERY OF LIGHT-TONED FLOAT ROCKS IN JEZERO CRATER: A TALE OF AQUEOUS ALTERATION AND HIGH-TEMPERATURE METAMORPHISM. LPSC 2024, 2024-03-11 - 2024-03-15, The Woodlands, TX.

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Abstract

Since Landing in Jezero crater, the Mars 2020 Perseverance rover has encountered light-toned float rocks (“float”) scattered across the crater floor and Jezero delta, with recent observations suggesting that they may also be present on the crater rim. In total, over 4,000 candidate light-toned float have been identified in Mastcam-Z images as mostly gravel to pebble grain size, but occasionally present as sand and small boulders. To date (Sol ~1000), no outcrop of these light-toned float has been found. Here, we report on their discovery and use imaging, chemical, and mineralogical data from the SuperCam and Mastcam-Z instruments onboard the Perseverance rover to constrain the potential origins of these unusual float.

Item URL in elib:

https://elib.dlr.de/211893/

Document Type:

Conference or Workshop Item (Speech)

Title:

DISCOVERY OF LIGHT-TONED FLOAT ROCKS IN JEZERO CRATER: A TALE OF AQUEOUS ALTERATION AND HIGH-TEMPERATURE METAMORPHISM

Authors:

Authors	Institution or Email of Authors	Author's ORCID iD	ORCID Put Code
Bedford, C.	Purdue University	UNSPECIFIED	UNSPECIFIED
Royer, Clement	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Wiens, R. C.	Purdue University, West Lafayette, IN, USA	UNSPECIFIED	UNSPECIFIED
Johnson, J. R.	APL/Johns Hopkins Univ., Laurel, MD, USA	UNSPECIFIED	UNSPECIFIED
Horgan, B.	Purdue University	UNSPECIFIED	UNSPECIFIED
Broz, A.	Purdue University	UNSPECIFIED	UNSPECIFIED
Forni, Olivier	Institut de Recherche en Astrophysique et Planétologie, Université Paul Sabatier, Toulouse, France	UNSPECIFIED	UNSPECIFIED
Connell, S.	Purdue University	UNSPECIFIED	UNSPECIFIED
Mandon, Lucia	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Kathir, B. S.	UNSPECIFIED	https://orcid.org/0009-0001-1772-0472	UNSPECIFIED
Hausrath, E. M.	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Udry, Arya	University of Nevada Las Vegas, Las Vegas, Nevada, USA	UNSPECIFIED	UNSPECIFIED
Madariaga, J. M.	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Dehouck, E.	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Anderson, R.	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Beck, Pierre	Univ. Grenoble Alpes, CNRS - Centre National de la Recherche Scientifique, IPAG, Grenoble,	UNSPECIFIED	UNSPECIFIED
Beyssac, Olivier	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Clave, Elise	elise.clave (at) dlr.de	UNSPECIFIED	UNSPECIFIED
Clegg, S.	Los Alamos National Laboratory, Los Alamos, NM 87545, USA.	UNSPECIFIED	UNSPECIFIED
Cloutis, E.	University of Winnipeg, Winnipeg, Canada	UNSPECIFIED	UNSPECIFIED
Fouchet, T.	LESIA, Observatoire de Paris, Meudon, France	UNSPECIFIED	UNSPECIFIED
Gabriel, Travis S. J.	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Garczynski, B. J.	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Kildaras, A.	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Manelski, Henry	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Mayhew, L.	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Nunez, J.	Johns Hopkins University , Laurel USA	UNSPECIFIED	UNSPECIFIED
Ollila, A M	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Schröder, Susanne	Susanne.Schroeder (at) dlr.de	https://orcid.org/0000-0003-1870-3663	UNSPECIFIED
Bell, J	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Simon, J.	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Wolf, U.	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Stack, K. M.	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Cousin, Agnes	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED

Date:

2024

Refereed publication:

Yes

Open Access:

Yes

Gold Open Access:

In SCOPUS:

In ISI Web of Science:

Status:

Published

Keywords:

Mars, M2020, Mars2020, Perseverance, rover, in-situ, Jezero crater, light-toned floats

Event Title:

LPSC 2024

Event Location:

The Woodlands, TX

Event Type:

international Conference

Event Start Date:

11 March 2024

Event End Date:

15 March 2024

HGF - Research field:

Aeronautics, Space and Transport

HGF - Program:

Space

HGF - Program Themes:

Robotics

DLR - Research area:

Raumfahrt

DLR - Program:

R RO - Robotics

DLR - Research theme (Project):

R - OptoRob [RO]

Location:

Berlin-Adlershof

Institutes and Institutions:

Institute of Optical Sensor Systems > In-Situ Sensing

Deposited By:

Schröder, Susanne

Deposited On:

16 Jan 2025 11:57

Last Modified:

29 Jan 2025 14:15

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