Peculiarities of Serpentine Decomposition in the Presence of Alkaline Chloride: Raman Study at High Pressure and Temperature

In situ Raman spectroscopy combined with a resistively heated diamond anvil cell was used to study the behavior of serpentine (chrysotile) Mg 3 Si 2 O 5 (OH) 4 in the presence of NaCl at 100–400°С and 10 kbar. Low H 2 O activity leads to a decrease in the dehydration temperature by about 200°C compa...

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Veröffentlicht in:Bulletin of the Russian Academy of Sciences. Physics 2019-06, Vol.83 (6), p.680-682
Hauptverfasser: Likhacheva, A. Yu, Goryainov, S. V., Rashchenko, S. V., Safonov, O. G.
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Sprache:eng
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Zusammenfassung:In situ Raman spectroscopy combined with a resistively heated diamond anvil cell was used to study the behavior of serpentine (chrysotile) Mg 3 Si 2 O 5 (OH) 4 in the presence of NaCl at 100–400°С and 10 kbar. Low H 2 O activity leads to a decrease in the dehydration temperature by about 200°C compared to a salt-free system, as well as the formation of only anhydrous products.
ISSN:1062-8738
1934-9432
DOI:10.3103/S1062873819060200