Abstract
The high pressure pelitic granulite with peak assemblage of garnet + kyanite + ternary feldspar + muscovite + rutile was discovered in Qixia area in the Precambrian Jiaobei massif, where high pressure basic granulites are widely distributed. The metamorphic peak conditions for the pelitic granulite were calculated asT = 800–840°C andP = 1.0–1.25 GPa on the basis ofP-T pseudosection. The post peakP-T path is characterized first by an isothermal decompression (ITD) pattern and then by an isobaric cooling (IBC) pattern, indicating a geodynamic process related to thinning of thickened continental crust.
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Zhou, X., Wei, C., Geng, Y. et al. Discovery and implications of the high-pressure pelitic granulite from the Jiaobei massif. Chin. Sci. Bull. 49, 1942–1948 (2004). https://doi.org/10.1007/BF03184286
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DOI: https://doi.org/10.1007/BF03184286