Alkali feldspar granite - Open Access .click

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207Pb–208Pb decoupling of alkali feldspar from a late Mesozoic A-type granite in eastern China

Mineralogy and Petrology, 2008
A zircon U–Pb age of 120.2 ± 1.7 Ma has been dated by ion microprobe in situ for the Laoshan A-type granite in eastern China. Fossil 231Pa excess has been inferred to explain the observed 207Pb–208Pb decoupling for alkali feldspar. In order to reconcile the apparent paradox of fossil 231Pa excess for alkali feldspar rather than for zircon, two ...
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Alkali feldspar microtextures from Pogari formation granite pebbles (Middle Bosnia)

2010
Several reactions on minerals of the exotic reddish I-type granite pebbles of Cretaceous Pogari formation (Middle Bosnia) were observed using polarizing microscope: sericitization of plagioclase and chloritization of biotite (with epidote as a possible by-product), myrmekite, „plagioclase overgrowth“, „intergranular plagioclase“, exsolution and „patch“
Brlek, Mihovil, Balen, Dražen, Bermanec, Vladimir +2 more
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Nb/Ta, Zr/Hf and REE fractionation in exotic pegmatite from the Keivy province, NW Russia, with implications for rare-metal mineralization in alkali feldspar granite systems

Ore Geology Reviews, 2022
Dmitry R Zozulya +2 more
exaly

Mechanism of Nb and REE enrichment in the Tiemuli alkali-feldspar granite, Chongyi County, Jiangxi Province