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Geochronological Study of Caledonian Granulite and High—Pressure Gneiss in the Dabie Mountains
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Abstract: Using the single—zircon evaporation technique and U—Pb method, the authors have conducted an isotope geochonological study of the Huilanshan granulite and Shima garnet‐bearing plagioclase gneiss (“country rocks” of the Shima eclogite) in the Dabie Mountains. The study shows that these rocks have peak metamorphic ages of 443–455 Ma, which are essentially consistent with that of the Caledonian high—ultrahigh pressure eclogites. This indicates the existence of the Caledonian collisional orogeny in the Dabie Mountains.
Title: Geochronological Study of Caledonian Granulite and High—Pressure Gneiss in the Dabie Mountains
Description:
Abstract: Using the single—zircon evaporation technique and U—Pb method, the authors have conducted an isotope geochonological study of the Huilanshan granulite and Shima garnet‐bearing plagioclase gneiss (“country rocks” of the Shima eclogite) in the Dabie Mountains.
The study shows that these rocks have peak metamorphic ages of 443–455 Ma, which are essentially consistent with that of the Caledonian high—ultrahigh pressure eclogites.
This indicates the existence of the Caledonian collisional orogeny in the Dabie Mountains.
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