The effect of solution chemistries and freezing temperatures on the morphology of cryogenic opal-A (COA): Implications for past climates on Mars
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DOI: 10.1016/j.chemgeo.2019.04.017
Abstract: Abstract Cryogenic opal-A (COA) is a type of hydrated amorphous silica that forms when silica-rich geothermal fluids erupt sub-aerially and are exposed to air temperatures below 0 °C. As the fluid cools and water-ice forms, the… read more here.
Keywords: coa; opal coa; cryogenic opal; freezing temperatures ... See more keywords