Physics
Scientific paper
Nov 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988pepi...52..267p&link_type=abstract
Physics of the Earth and Planetary Interiors, Volume 52, Issue 3-4, p. 267-282.
Physics
11
Scientific paper
Triassic rocks underlying the Paleogene deposits of the Ebro Basin are exposed along its SE margin.
About 200 samples of Middle Triassic and Paleogene rocks from this margin have been demagnetized and analysed. The Middle Triassic red beds contain one or two secondary components of magnetization. The high unblocking temperature component has a mean direction of D = 1° and I = 6°.
The Eocene red beds display a very stable magnetization. Nevertheless some samples have a high-temperature component with the present-day field direction. The Eocene mean direction is D = 22° and I = 51°.
The paleomagnetic results show a systematic 20° clockwise rotation relative to the data from the Pyrenean and Cantabrian Ranges and the western and SW part of Iberia.
To explain these results two hypotheses are presented. One implies the rotation of the NE part of Iberia, whereas the other refers to a rigid block rotation mechanism along the Catalan Coastal Range.
Banda E.
Parés Josep M.
Santanach Pere
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