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Sedimentary Rocks

Sandstone Altar Stone Composition Sandstones Clay Minerals Chemical Signatures Biosignatures Clay-Rich Mudstone Biomineralization Microbial Metabolism Redox Reactions Mudstone Mineral Analysis

New Mineral Evidence Rules Out Glacial Delivery of Stonehenge Stones

Detrital fingerprinting of river sands near Salisbury Plain found no Welsh or Scottish mineral ages expected from glacial transport.

Perseverance’s ‘Leopard-Spot’ Rock Tagged a Potential Biosignature as Fresh Skepticism Surfaces

Perseverance Maps Repeated Habitable Water Episodes in Jezero, Study Finds