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Article
Open AccessCold deep subduction recorded by remnants of a Paleoproterozoic carbonated slab
The absence of low-thermal gradients in old metamorphic rocks (<350 °C GPa−1) has been used to argue for a fundamental change in the style of plate tectonics during the Neoproterozoic Era. Here, we report data fr...
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Article
Open AccessOrigin of heavy rare earth mineralization in South China
Heavy rare earth elements (HREE) are dominantly mined from the weathering crusts of granites in South China. Although weathering processes occur globally, no economic HREE resources of this type have yet been ...
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Article
Open AccessIn situ U-Pb dating of titanite by LA-ICPMS
Titanite is an ideal mineral for U-Pb isotopic dating because of its relatively high U, Th and Pb contents. Here, we developed a technique for U-Pb dating of titanite using the 193 nm ArF laser-ablation system...
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Article
Open AccessSr-rich apatite from the Dangzishan leucitite-ijolite xenoliths (Heilongjiang Province): Mineralogy and mantle-fluid metasomatism
Abundant apatite grains with elevated SrO content were found in leucitite-ijolite xenoliths in the Dangzi Mountain, Heilongjiang Province. Morphological and mineralogical associations, and compositional analys...
