Geyserite
Geyserite, or siliceous sinter, is a form of
silica that is often found as crusts or layers around hot springs and geysers. Botryoidal geyserite is known as fiorite. Geyserite is porous due to the silica enclosing many small cavities.[1] Siliceous sinter should not be confused with calcareous sinter, which is made of calcium carbonate
.
In May 2017, evidence of the
on land may have been found in 3.48-billion-year-old geyserite uncovered in the Pilbara Craton of Western Australia.[2][3]
Yellowstone
See also
- Abiogenesis – Life arising from non-living matter
- Geothermal areas of Yellowstone – Geyser basins and other geothermal features in Yellowstone National Park
- Life on Mars – Scientific assessments on the microbial habitability of Mars
- Timeline of the evolutionary history of life
References
- ^ "Sinter | mineral".
- ^ Staff (9 May 2017). "Oldest evidence of life on land found in 3.48-billion-year-old Australian rocks". Phys.org. Retrieved 13 May 2017.
- PMID 28486437.
External links
Wikimedia Commons has media related to Geyserite.
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