Open AccessPaleomagnetism and magnetic fabrics of the Almopias, Thessaly and Milos volcanics. Implications for the regional deformation
Author(s) -
A. Atzemoglou,
Despina Kondopoulou,
Ι. Zananiri
Publication year - 2001
Publication title -
deltio tīs ellīnikīs geōlogikīs etaireias/deltio tīs ellīnikīs geōlogikīs etaireias
Language(s) - English
Resource type - Journals
eISSN - 2529-1718
pISSN - 0438-9557
DOI - 10.12681/bgsg.17706
Subject(s) - paleomagnetism , geology , volcanic rock , deformation (meteorology) , magnetic mineralogy , anisotropy , metamorphism , magnetite , seismology , hematite , geochemistry , mineralogy , magnetic field , remanence , volcano , paleontology , magnetization , physics , oceanography , quantum mechanics
New palaeomagnetic and rock magnetic data obtained from the plio-quaternary volcanics in Almopias (NW Greece) are presented, together with existing ones from two other localities (Thessaly and Milos) in the Aegean extensional area. In most cases a stable component, slightly deviated from the expected direction, has been identified. Rock magnetic analysis reveals the presence of either magnetite (Thessaly), hematite (Milos) or both (Almopias) The anisotropy of magnetic susceptibility reaches significant levels for only part of the samples whereas the anisotropy ellipsoid could be defined in only one case (Almopias). The existing structural data for the three areas, together with fault plane solutions provide a representative deformation pattern. Comparison of -small- rotation angles and possible rotation of the stress field has been possible in the case of Almopias.