The magmatic and magmatic-hydrothermal evolution of felsic igneous rocks as seen through Nb-Ta geochemical fractionation, with implications for the origins of rare …

C Ballouard, M Massuyeau, MA Elburg, S Tappe… - Earth-Science …, 2020 - Elsevier
Abstract Despite Nb and Ta being considered as 'geochemical twins', most Ta mineral
deposits are associated with muscovite-bearing peraluminous granites and related …

Lithium isotope behavior during magmatic differentiation and fluid exsolution in the Jiajika granite–pegmatite deposit, Sichuan, China

H Zhang, S Tian, D Wang, X Li, T Liu, Y Zhang, X Fu… - Ore Geology …, 2021 - Elsevier
Abstract The Jiajika lithium (Li) deposit in Sichuan Province is the largest pegmatite-type Li
deposit in China. The petrogenesis and metallogenesis of the Jiajika granitic pegmatites …

Trace element partitioning between apatite and silicate melts

S Prowatke, S Klemme - Geochimica et Cosmochimica Acta, 2006 - Elsevier
We present new experimental apatite/melt trace element partition coefficients for a large
number of trace elements (Cs, Rb, Ba, La, Ce, Pr, Sm, Gd, Lu, Y, Sr, Zr, Hf, Nb, Ta, U, Pb …

Experimental study of monazite/melt partitioning with implications for the REE, Th and U geochemistry of crustal rocks

AS Stepanov, J Hermann, D Rubatto, RP Rapp - Chemical Geology, 2012 - Elsevier
We report the results of monazite/melt partitioning experiments conducted in the piston-
cylinder apparatus at 10–50kbar and 750–1200° C, using a synthetic granite mix with …

Geochemistry of magmatic and hydrothermal zircon from the highly evolved Baerzhe alkaline granite: implications for Zr–REE–Nb mineralization

WB Yang, HC Niu, Q Shan, WD Sun, H Zhang, NB Li… - Mineralium …, 2014 - Springer
The Baerzhe alkaline granite pluton hosts one of the largest rare metal (Zr, rare earth
elements, and Nb) deposits in Asia. It contains a geological resource of about 100 Mt at …

Halogens in volcanic systems

A Aiuppa, DR Baker, JD Webster - Chemical Geology, 2009 - Elsevier
The transport, degassing and atmospheric release of halogens from active volcanism on
Earth have been the focus of increasing interest over the last few decades, and have …

Partitioning of elements between silicate melt and immiscible fluoride, chloride, carbonate, phosphate and sulfate melts, with implications to the origin of …

IV Veksler, AM Dorfman, P Dulski… - … et Cosmochimica Acta, 2012 - Elsevier
Liquid–liquid partitioning of 42 elements between synthetic silicate melts and immiscible
fluoride, chloride, carbonate, phosphate and sulfate liquids was studied at temperatures of …

The boundaries of the West African craton, with special reference to the basement of the Moroccan metacratonic Anti-Atlas belt

N Ennih, JP Liégeois - 2008 - pubs.geoscienceworld.org
Abstract The West African craton (WAC) was constructed during the Archaean and the c. 2
Ga Palaeoproterozoic Eburnian orogeny. Mesoproterozoic quiescence at c. 1.7–1.0 Ga …

Lithium isotope fractionation during fluid exsolution: Implications for Li mineralization of the Bailongshan pegmatites in the West Kunlun, NW Tibet

JJ Fan, GJ Tang, GJ Wei, H Wang, YG Xu, Q Wang… - Lithos, 2020 - Elsevier
Granitic pegmatites are considered significant host rocks for the rare metal deposits.
However, the enrichment mechanisms for the rare metal elements (eg, Li, Be, Nb and Ta) …

The role of volatile exsolution and sub-solidus fluid/rock interactions in producing high 56Fe/54Fe ratios in siliceous igneous rocks

A Heimann, BL Beard, CM Johnson - Geochimica et Cosmochimica Acta, 2008 - Elsevier
Highly differentiated igneous rocks can, in some cases, have 56Fe/54Fe ratios that are
significantly higher than those of mafic-to intermediate-composition igneous rocks. Iron …