Crustal seismic reflection profiling in Romania on the Urziceni-Mizil line
1993; Elsevier BV; Volume: 223; Issue: 3-4 Linguagem: Inglês
10.1016/0040-1951(93)90147-c
ISSN1879-3266
AutoresV. Rǎileanu, D. Taloş, V. Varodin, D. Stiopol,
Tópico(s)Geological formations and processes
ResumoThis work presents the interpretation of a deep seismic reflection profile recorded in the northern extremity of the Moesian Platform. The seismic time section and the reflectivity histogram show the presence of two distinct zones: good reflectivity in the upper part for the sedimentary overburden, and a continuous decrease of reflectivity with depth for the deeper part (crystalline zone). A correlation between the reflectivity of the crust, the age of the platform and heat flow was also established. The decrease in the crustal reflectivity (mainly for the lower crust) could be due to both a temperature decrease and higher viscosity, favouring a brittle behaviour. The presence of these factors could explain the lack of continuity of the reflections. A crustal model based on the seismic time section is also presented and shows a thickening of the crust from south to north.
Referência(s)