Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2021 Nov 5;126(11):e2021JE006898. doi: 10.1029/2021JE006898

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© 2021 Jet Propulsion Laboratory. California Institute of Technology. Government sponsorship acknowledged.

This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.

PMC Copyright notice

Carbonate and phyllosilicate‐bearing rock in the western Jezero delta blocky unit. (a) THEMIS thermal inertia map from Edwards and Buz (2021) covering region of interest. (b) CRISM pixels (purple) for spectra shown in panel (d), which cover light and dark‐toned bedrock in the delta blocky unit. (c) Enlarged view of light and dark‐toned bedrock. (d) UMass, TRR3, and TER CRISM spectra (purple) from purple pixels shown in panel (b) compared to library spectra (black). The 2.3 and 2.5 μm absorptions are consistent with the presence of carbonate‐bearing rock. The 2.3/2.5 μm absorptions are consistent with the presence of phyllosilicate‐bearing material. The small absorption at 2.2 μm is consistent with the presence of either hydrated silica and/or Al‐phyllosilicate. Overall, this composition resembles the crater floor fractured 2 unit, but with a stronger 2.3 μm feature, consistence with stronger spectral presence of phyllosilicates.