Results 161 to 170 of about 128,769 (349)

A Quaternary Solution Model for White Micas Based on Natural Coexisting Phengite-Paragonite Pairs [PDF]

open access: yes, 2017
A thermodynamic model for the quaternary white mica solid solution with end-members muscovite-Mg-celadonite-paragonite-Fe-celadonite (Ms-MgCel-Pg-FeCel) is presented.
ABART, R.   +2 more
core  

Mg-Al Sapphirine- and Ca-Al Hibonite-bearing Granulite Xenoliths from the Chyulu Hills Volcanic Field, Kenya [PDF]

open access: yes, 2017
Basanites of the Chyulu Hills (Kenya Rift) contain mafic Mg-Al and Ca-Al granulite xenoliths. Their protoliths are interpreted as troctolitic cumulates; however, the original mineral assemblages were almost completely transformed by subsolidus reactions.
KALT, A., ULIANOV, A.
core  

Petrography, Mineral Chemistry and Geothermobarometry of Andalusite- Bearing Schists North of Azna (Northern Sanandaj-Sirjan Zone, Iran)

open access: yesJournal of Economic Geology, 2016
Introduction The area studied is located north of Azna (Lorestan Province) in a small portion of the Sanandaj – Sirjan structural zone (Mohajjel et al., 2003).This area is part of the Zagros orogenic belt, formed by the opening and closure of Neotethyan
Karim Abdollahi Silabi   +2 more
doaj  

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