Abstract
Mossbauer spectroscopy characterizes “Green rust related minerals” of the fougerite group within the hydrotalcite supergroup (Mills et al. Mineral. Mag. 76(5), 1289–1336, 2012) in locations on Earth quite different from the original studies done in a temperate climate such as Brittany- France, Western Europe. Two examples are described, the gley at the bottom of Tatkul Lake in South Urals (Russia), which is representative of permafrost conditions, and a gley at the bottom of Yanga Lake, a reservoir in the Murray River catchment (NSW-Australia), which is representative of warm and desert conditions. Complementary information is obtained from XRD patterns.
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