Clays form on Earth by near-surface weathering, precipitation in water bodies within basins,
hydrothermal alteration (volcanic-or impact-induced), diagenesis, metamorphism, and …

The investigation of hyperspectral data from the Mars Reconnaissance Orbiter Compact
Reconnaissance Imaging Spectrometer for Mars (CRISM) and the Observatoire pour la …

The Noachian terrain west of the Isidis basin hosts a diverse collection of alteration minerals
in rocks comprising varied geomorphic units within a 100,000 km2 region in and near the …

Abundant zircon grains were found within a metasomatic chlorite–corrensite (trioctahedral
regularly interstratified chlorite/smectite) shell that surrounds rodingite from the Jordanów …

The enhanced spatial and spectral resolution provided by the Compact Reconnaissance
Imaging Spectrometer for Mars (CRISM) on the Mars Reconnaissance Orbiter (MRO) has …

Previous identification of serpentine and magnesium carbonate in the eastern Nili Fossae
region of Mars indicates hydrothermal alteration of an olivine‐rich protolith. Here we …

Abstract The Permian-Triassic boundary occurs within a relatively complete terrestrial
sequence in the Shackleton Glacier area of the central Transantarctic Mountains. The …

Hydrated silica is found in a variety of martian deposits within aqueously altered mineral
suites. Its common occurrence is attributed to its ease of formation in different weathering …

The only area on Mars where crystalline quartz has been identified from orbit is near
Antoniadi Crater, on the northern edge of the Syrtis Major shield volcano. However, the …

Widespread occurrences of phyllosilicates, predominantly nontronite and Mg saponite, in
the Noachian‐aged crust of Mars place constraints on water availability and surface …