Underplating of Mesozoic Mantle-derived Magmas in Tongling, Anhui Province:Evidence from Megacrysts and Xenoliths
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 underplafing of mantle-derived alkali-olivine basalt at circ...
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| Veröffentlicht in: | 地质学报(英文版) 2004, Vol.78 (1), p.131-136 |
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| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | 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 underplafing 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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| ISSN: | 1000-9515 |
| DOI: | 10.3321/j.issn:1000-9515.2004.01.017 |