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T1  - Copper-Containing Magnesioferrite in Vesicular Trachyandesite in a Lava Tube from the 2012-2013 Eruption of the Tolbachik Volcano, Kamchatka, Russia 
SN  -  /  
UR  - http://hdl.handle.net/10138/326102 
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A1  - Sharygin, Victor V.; Kamenetsky, Vadim S.; Zhitova, Liudmila M.; Belousov, Alexander B.; Abersteiner, Adam 
A2  -  
PB  -  
Y1  - 2018 
LA  - eng 
AB  - Cu-rich magnesioferrite was found in vesicular basaltic trachyandesite in one of lava tubes (Duplex) that formed during the 2012-2013 eruption of the Tolbachik volcano, Kamchatka. This mineral is commonly associated with hematite, tenorite, halite, sylvite, and Ca-rich silicates (mainly, esseneite and Na-rich melilite) in high-temperature (800-1000 degrees C) reactionary zones (up to 100 mu m) covering vesicular rocks and lava stalactites in the Duplex tube. The mineral relationships of this ass... 
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KW  - magnesioferrite; cuprospinel; hematite; tenorite; trachyandesite; lava tube; Tolbachik volcano; Kamchatka; FISSURE ERUPTION; MAGNETIC-PROPERTIES; PHASE-TRANSITION; MINERALS; CUFE2O4; CUPROSPINEL; PRECURSORS; FUMAROLES; BEHAVIOR; GOLD; 1171 Geosciences 
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