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Paleomagnetic evidence for no tectonic rotation of the central Italy Tyrrhenian Margin since Upper Pliocene
Author(s) -
Sagnotti Leonardo,
Mattei Massimo,
Faccenna Claudio,
Funiciello Renato
Publication year - 1994
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/94gl00393
Subject(s) - paleomagnetism , geology , paleontology , tectonics , clockwise , declination , magnetic declination , seismology , plio pleistocene , polar wander , margin (machine learning) , rotation (mathematics) , pleistocene , geophysics , earth's magnetic field , geometry , magnetic field , physics , mathematics , quantum mechanics , astronomy , machine learning , computer science
We present paleomagnetic results from 141 samples collected at 12 sites from Plio‐Pleistocene clayey units in the extensional Central Italy Tyrrhenian margin. All samples were subjected to stepwise alternating field and/or thermal demagnetization. Positive fold and reversal tests indicate that the results refer to a primary component of magnetization. Paleomagnetic mean direction (Declination = 358.0°; Inclination = 55.2°; α 95 = 4.1°) reflects the expected geocentric axial dipole field for the locality, thus indicating that this sector of the Tyrrhenian margin did not undergo any tectonic rotation during the past 4 million years.