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Remagnetization of Upper Jurassic limestones from the Danubian Unit (Southern Carpathians, Romania): tectonic implications

In: Geologica Carpathica, vol. 63, no. 6
Cristian G. Panaiotu - Cristina E. Panaiotu - Iuliana Lazar
Detaily:
Rok, strany: 2012, 453 - 461
Jazyk: eng
Kľúčové slová:
Upper Jurassic, Southern Carpathians, paleomagnetism, remagnetization, limestones
O článku:
We present a pioneering paleomagnetic study on Upper Jurassic limestones from the Danubian Unit (Southern Carpathians, Romania). Thermal and alternating field demagnetizations were applied to define the characteristic remanent magnetization component in all six localities (81 samples). All samples have a normal polarity characteristic remanent magnetization. Negative regional and local fold tests suggest that this remanent magnetization is in fact a remagnetization produced by late diagenetic processes. The studied limestones were probably remagnetized during the collision of the Getic Unit and Danubian Unit which took place during the long normal polarity Chron C34 (82–118 Ma). The area mean direction (D=75.5°, I=50.0°, α95=10.2°, k=44) implies about 75° clockwise rotation post remagnetization. Our paleomagnetic results further indicate the absence of significant relative rotation between the Getic Unit and the Danubian Unit during the Cenozoic.
Ako citovať:
ISO 690:
G. Panaiotu, C., E. Panaiotu, C., Lazar, I. 2012. Remagnetization of Upper Jurassic limestones from the Danubian Unit (Southern Carpathians, Romania): tectonic implications. In Geologica Carpathica, vol. 63, no.6, pp. 453-461. 1335-0552. DOI: https://doi.org/10.2478/v10096-012-0035-1

APA:
G. Panaiotu, C., E. Panaiotu, C., Lazar, I. (2012). Remagnetization of Upper Jurassic limestones from the Danubian Unit (Southern Carpathians, Romania): tectonic implications. Geologica Carpathica, 63(6), 453-461. 1335-0552. DOI: https://doi.org/10.2478/v10096-012-0035-1
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