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Underplating of Mesozoic Mantle-derived Magmas in Tongling, Anhui Province: Evidence from Megacrysts and Xenoliths |
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| Authors: | DU Yangsong LEE Hyunkoo and QIN Xinlong Key Laboratory of Lithosphere Tectonics and Exploration Ministry of Education Xueyuan Roa Beijing Faculty of Earth Sciences and Mineral Resources China Universityof Geosciences Xueyuan Roa Beijing |
| Institution: | DU Yangsong,LEE Hyunkoo and QIN Xinlong Key Laboratory of Lithosphere Tectonics and Exploration,Ministry of Education,Xueyuan Roa,Beijing,Faculty of Earth Sciences and Mineral Resources,China Universityof Geosciences,Xueyuan Roa,Beijing Department of Geology,Chungnan National University,Kungdong,Yuseong Ku,Taejon -,Republic of Korea |
| Abstract: | 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. |
| Keywords: | magma underplating megacrysts xenoliths Tongling in Anhui Province |
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