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| Titel |
Petrogenetic implications from Pleistocene volcanic rocks of Psathoura Island, Greece: Mineral chemistry and geochemical data |
| VerfasserIn |
Petros Koutsovitis, Georgios Vougioukalakis, Georgios Economou, Nikolaos Xirokostas, Dimitrios Tarenidis, Chrysanthi Ioakim, Aristomenis Karageorgis |
| Konferenz |
EGU General Assembly 2015
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 17 (2015) |
| Datensatznummer |
250113170
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| Publikation (Nr.) |
 EGU/EGU2015-13365.pdf |
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| Zusammenfassung |
| Psathoura Island in the North Aegean area (39.498/24.181) is the only subaerial Quaternary
(0.7 Ma) volcanic center along the extension of the North Anatolian Fault (NAF) in the
Aegean area. Outcrops consist of a small number of overlapping subaerial basaltic lava
flows.
These lavas are enriched in LREE [(La/Yb)CN=12.2-18.1], with no Eu anomaly. The
Psathoura volcanics are porphyritic with a fine grained holocrystalline trachytic groundmass.
Olivine phenocryst cores (Fo=75.4-85.6), differ from phenocryst rims and groundmass
olivines, which have lower Fo compositions. Few anhedral olivine xenocrysts are more Fo
rich (Fo=86.2-88.5, CaO |
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