The key role of mica during igneous concentration of tantalum
Stepanov, Aleksandr; Mavrogenes, John; Meffre, Sebastien; Davidson, Paul
Description
Igneous rocks with high Ta concentrations share a number of similarities such as high Ta/Nb, low Ti, LREE and Zr concentrations and granitic compositions. These features can be traced through fractionated granitic series. Formation of Ta-rich melts begins with anatexis in the presence of residual biotite, followed by magmatic crystallization of biotite and muscovite. Crystallization of biotite and muscovite increases Ta/Nb and reduces the Ti content of the melt. Titanium-bearing oxides such as...[Show more]
Collections | ANU Research Publications |
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Date published: | 2014 |
Type: | Journal article |
URI: | http://hdl.handle.net/1885/58588 |
Source: | Contributions to Mineralogy and Petrology |
DOI: | 10.1007/s00410-014-1009-3 |
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01_Stepanov_The_key_role_of_mica_during_2014.pdf | 144.9 kB | Adobe PDF | Request a copy |
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