Underplating of Mesozoic Mantle-derived Magmas in Tongling, Anhui Province: Evidence from Megacrysts and Xenoliths

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Underplating of Mesozoic Mantle-derived Magmas in Tongling, Anhui Province: Evidence from Megacrysts and Xenoliths
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Lithological observations and mineralogical analyses on pyroxene and hornblende megacrysts and pyroxene and hornblende cumulates in xenoliths in the Mesozoic plutons of the Tongling region, Anhui Province, provide evidence for the magmatic underplating of mantle-derived alkali-olivine basalt at circa 140 Ma. The pyroxene and hornblende megacrysts and cumulates were formed through the AFC process at depths ranging from 27 to 35 km.

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DU Yangsong, LEE Hyunkoo, QIN Xinlong Key Laboratory of Lithosphere Tectonics, Exploration, Ministry of Education, Xueyuan Road, Beijing, Faculty of Earth Sciences, Mineral Resources, China Universityof Geosciences, Xueyuan Road, Beijing Department of Geology, Chungnan National University, Kungdong, Yuseong Ku, Taejon -,Republic of Korea.2004. Underplating of Mesozoic Mantle-derived Magmas in Tongling, Anhui Province: Evidence from Megacrysts and Xenoliths[J]. Acta Geologica Sinica(),78(1):

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