Modern and ancient extremely acid saline deposits: terrestrial analogs for martian environments?

  title={Modern and ancient extremely acid saline deposits: terrestrial analogs for martian environments?},
  author={Kathleen Counter Benison and Deidre A. LaClair},
  volume={3 3},
Extremely acid (pH <1) saline lakes and groundwaters existed in the mid-Permian of the mid-continent of North America. Modern counterparts have been found in acid saline lake systems throughout southern Australia. We compare and contrast the Permian Opeche Shale of North Dakota and Nippewalla Group of Kansas to modern Australian salt lakes in southern Western Australia and in northwest Victoria. With the exception of some minor variations in pH, evaporite mineralogy, and water geochemistry, the… 

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