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The oxidation states of niobium and tantalum in mantle melts

Date

Authors

Burnham, Antony D

Berry, Andrew

Wood, Bernard J.

Cibin, Giannantonio

Publisher

Elsevier

Abstract

Niobium K-edge and tantalum LIII-edge XANES spectra were recorded for silicate glasses quenched from melts equilibrated at oxygen fugacities (in log units relative to the iron-wüstite buffer) ranging from IW+6.7 to IW-4.3 at 1400-1650°C and atmospheric

Keywords

Keywords: Arc signature; Oxidation state; Oxygen fugacity; Silicate melts; XANES; Atmospheric pressure; Oxidation; Silicates; Structural geology; Tantalum; Niobium; fugacity; igneous geochemistry; mantle source; niobium; oxidation; P-T conditions; silicate melt; ta Arc signature; Niobium paradox; Oxidation state; Oxygen fugacity; Silicate melt; XANES

URI

http://hdl.handle.net/1885/78278

Collections

ANU Research Publications

Source

Chemical Geology

Type

Journal article

DOI

10.1016/j.chemgeo.2012.09.002

Restricted until

2037-12-31

Downloads

File

Description

01_Burnham_The_oxidation_states_of_2012.pdf (429.66 KB)