MIOCENE OVERPRINT IN THE PALEOZOIC OF GRAZ, EASTERN ALPS, AUSTRIA

Rok, strany: 1996, 5 - 12

Four localities comprising 59 samples of moderately metamorphosed basalts and tuffs of Silurian age were collected from the "Paleozoic of Graz", Eastern Alps, Austria. During AF and thermal demagnetization samples from basalts, green coloured lapilli tuffs and ochre coloured pyroclastic breccias show two or three components of remanence and in some cases an overlap of blocking temperatures. The mean direction obtained is D = 47.6°, I = 61.5° with α₉₅ = 5.5°. This direction yields a virtual geomagnetic pole of 57.6° N and 88.5° E. The magnetization of these rocks is considered to be secondary, which is supported by SEM examinations, and appears to have been acquired during the Miocene. The paleomagnetic data suggest that the investigated area of the "Paleozoic of Graz" has undergone a large clockwise rotation of about 45° since the Miocene.

ISO 690:

Burgschwaiger, E., Johann Mauritsch, H., Bierbaumer, M., Scholger, R. 1996. MIOCENE OVERPRINT IN THE PALEOZOIC OF GRAZ, EASTERN ALPS, AUSTRIA. In Geologica Carpathica, vol. 47, no.1, pp. 5-12. 1335-0552.

APA:

Burgschwaiger, E., Johann Mauritsch, H., Bierbaumer, M., Scholger, R. (1996). MIOCENE OVERPRINT IN THE PALEOZOIC OF GRAZ, EASTERN ALPS, AUSTRIA. Geologica Carpathica, 47(1), 5-12. 1335-0552.