Summary
These minerals are hydrous sulphates that form under wet, acidic or neutral conditions, similar to environments inferred on Mars.
Melanterite indicates short‑term wet, acidic, oxidising conditions, while gypsum records longer‑lasting water activity and can trap signs of ancient life.
The researchers used an advanced laser Raman spectrometer to detect the minerals by their unique spectral signatures.
Studying Earth locations that resemble Martian terrain provides valuable analogues for future planetary exploration and astrobiology research.
The findings were published in a scientific journal and support the Department of Science and Technology’s efforts to advance planetary science.