Geological characteristics of hydrated minerals on Mars from MRO CRISM images

摘要

Identification of Martian surface minerals can contribute to understand the Martian environmental change and geological evolution as well as explore the habitability of the Mars. The Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) aboard the Mars Reconnaissance Orbiter (MRO) is covers the visible to near infrared wavelengths along with enhanced spectral resolution, which provides ability to map the mineralogy on Mars. In this paper, based on the spectrum matching, mineral composition and geological evolution of Martian Jezero and Holden crater are analyzed using the MRO CRISM. The hydrated minerals are detected in the studied areas, including the carbonate, hydrated silicate and hydrated sulfate. These minerals suggested that the Holden and Jezero craters have experienced long time water-rock interactions. Also, the diverse alteration minerals found in these regions indicate the aqueous activities in multiple distinct environments.