Janice Bishop

Orbital evidence for more widespread carbonate‐bearing rocks on Mars

Published in Journal of Geophysical Research: Planets

Carbonates are key minerals for understanding ancient Martian environments because they are indicators of potentially habitable, neutral-to-alkaline water and may be an important reservoir for paleoatmospheric CO 2. Previous remote sensing studies have identified mostly Mg-rich carbonates, both in Martian dust and in a Late Noachian rock unit circu...

Reflectance spectroscopy (0.35–8μm) of ammonium-bearing minerals and qualitative comparison to Ceres-like asteroids

Published in Icarus

Ammonium-bearing minerals have been suggested to be present on Mars, Ceres, and various asteroids and comets. We undertook a systematic study of the spectral reflectance properties of ammonium-bearing minerals and compounds that have possible planetary relevance (ie, ammonium carbonates, chlorides, nitrates, oxalates, phosphates, silicates, and sul...

Linkages between mineralogy, fluid chemistry, and microbial communities within hydrothermal chimneys from the Endeavor S...

Published in Geochemistry Geophysics Geosystems

Rock and fluid samples were collected from three hydrothermal chimneys at the Endeavour Segment, Juan de Fuca Ridge to evaluate linkages among mineralogy, fluid chemistry, and microbial community composition within the chimneys. Mössbauer, mid- infrared thermal emission, and visible-near infrared spectroscopies were utilized for the first time to c...

A Serpentinization Origin for Jezero Crater Carbonates

Dehydration-Rehydration Experiments With Cl Salts Mixed Into Mars Analog Materials And The Effects On Their Vnir Spectra...

Geologic context of lacustrine mineral deposits at Bradbury Crater

Sulfates on Mars: Comparison with spectral properties of analog sites

A model for generation of martian surface dust, soil and rock coatings: Physical vs. Chemical interactions, and palagoni...

Clues from the SWIR: Mineralogical constraints from 1 to 4 μm, 5 th Mars Conference

Published in JPL

Study of Soil and Duricrust Models for Mars.

This final report summarizes activities conducted during the three years of the NASA High Resolution Microwave Survey (HRMS). With primary interest in the Sky Survey activity, the principal investigator attended nine Working Group meetings and traveled independently to conduct experiments or present results at other meetings. The major activity inv...

Early Earth rock analogues for Martian subsurface processes

Sub-surface mafic-ultramafic crustal and hydrothermal environments on early Earth and Mars may have been very similar [1]. Hydrogen production from low-temperature alteration of ultramafic and basaltic rocks has been proposed to support early microbial life in Earth s earliest subsurface environments [1]. Similarly, evidence for microbial sulphate ...

A Hydrothermally Altered, Mn-incrusted Marine Sediment as an Analogue for Martian Deposits?

The investigated sample was dredged in the Kahouanne basin during the research cruise SO-154 (RV Sonne) in the Lesser Antilles Island Arc between the islands of Guadeloupe and Montserrat (Halbach et al., 2002). The Kahouanne basin represents the southern extension of the large Kallinago intra-arc basin and has a length of approximately 40 km and a ...