Abstract
Abstract. Martian mineral detection and mapping can provide important information and constraints on Martian aqueous history, which can be used to assess the potential habitability of Mars. The key parameters to Martian aqueous alteration are the depth and extent of the Martian hydrous mineral. Therefore, it is important to know detailed minerals and chemical induction of the existence of water on the Martian surface at past or present. The Jezero crater located in the Nili Fossae region of Mars is the once-flooded crater, which has rich fan-delta deposit clays. It is a good case to study the clays and mineral components at Jezero crater, so as to know the geogloical processes and evolution on Mars. The Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) aboard the Mars Reconnaissance Orbiter (MRO) is a visible and near infrared spectrometer with enhanced spectral resolution, which provides an opportunity to map detailed and large-area mineralogy on Mars. In this paper, CRISM nearinfrared spectral data are analyzed using the mixture tuned filtering (MTMF) along with spectral angle mapper (SAM), and mineral components at Martian Jezero region are recognized, including the phyllosilicate, carbonate, nitrates and tectosil. Some detailed characteristics and implications of minerals at Martian Jezero crater are further studied and discussed, including implications on Martian climate change and geological evolution.
Highlights
Mars and other solid celestial bodies, called the terrestrial planets, are primarily composed of rock with a given mass of minerals
In this paper, using mixture tuned filtering (MTMF) and spectral angle mapping (SAM) based on Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) near-infrared spectral data, we identify the detailed mineral classes and assess their abundance and infeasibility value in the Jezero Crater
Some implications of minerals at Martian Jezero crater related to the Martian climate and geological evolution are further studied and discussed
Summary
Mars and other solid celestial bodies, called the terrestrial planets, are primarily composed of rock with a given mass of minerals. Some minerals can form only under the condition of existence of water, such as carbonate and sulfate. Detection of these minerals could provide important information and constraints on Martian aqueous history, which can be used to assess the potential habitability of Mars. It is a good case to study the mineral components at Jezero crater, so as to know the geological process and evolution on Mars. Some implications of minerals at Martian Jezero crater related to the Martian climate and geological evolution are further studied and discussed.
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