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C) what are the abundances of FeO and MgO (in wt.%) in an orthopyroxene with the same Mg# as in B)?

C) what are the abundances of FeO and MgO (in wt.%) in an orthopyroxene with the same Mg# as in B)?

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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Please do C Electron microprobe analysis of olivine from a mid oceanic ridge basalt (MORB) yielded the following abundances of FeO = 8.76 wt.% and MgO = 49.95 wt.%. Express the olivine composition as: %3D B) as a "magnesium number" Mg# = Mg/(Mg + Fe2+) molar. %3D C) what are the abundances of FeO and MgO (in wt.%) in an orthopyroxene with the same Mg# as in B)? A) mol % Fo (forsterite) and mol % Fa (fayalite) component
Transcribed Image Text:Please do C Electron microprobe analysis of olivine from a mid oceanic ridge basalt (MORB) yielded the following abundances of FeO = 8.76 wt.% and MgO = 49.95 wt.%. Express the olivine composition as: %3D B) as a "magnesium number" Mg# = Mg/(Mg + Fe2+) molar. %3D C) what are the abundances of FeO and MgO (in wt.%) in an orthopyroxene with the same Mg# as in B)? A) mol % Fo (forsterite) and mol % Fa (fayalite) component
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