First finding of burkeite in melt inclusions in olivine from sheared lherzolite xenoliths.
For the first time burkeite was observed as a daughter phase in the melt inclusions in olivine by Raman spectroscopy. The olivine comes from sheared lherzolite xenoliths from the Udachnaya-East kimberlite pipe (Yakutia, Russia). This anhydrous sulfate-carbonate mineral (Na(6)(CO(3))(SO(4))(2)) is generally considered to be a characteristic mineral in saline soils or in continental lacustrine evaporite deposits. Recently, however, this mineral was identified in hydrothermal fluids. Our observations indicate that burkeite can also be formed from a mantle-derived melt.
Korsakov
Andrey V
AV
Institute of Geology and Mineralogy of Siberian Branch Russian Academy of Sciences, Koptyug Pr. 3, Novosibirsk 630090, Russia. korsakov@uiggm.nsc.ru
Golovin
Alexander V
AV
De Gussem
Kris
K
Sharygin
Igor S
IS
Vandenabeele
Peter
P
D019015:Geologic Sediments / Q000737:chemistry*; D058085:Iron Compounds / Q000032:analysis*; D017616:Magnesium Compounds / Q000032:analysis*; D012426:Russia; D017640:Silicates / Q000032:analysis*; D013059:Spectrum Analysis, Raman
D058085:Iron Compounds; D017616:Magnesium Compounds; D017640:Silicates; C034475:olivine