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BIBTEX RIS

O LINEAMENTO SISMO-TECTÔNICO DE CABO FRIO

1981; Sociedade Brasileira de Geologia; Volume: 11; Issue: 04 Linguagem: Inglês

10.25249/0375-7536.1981209212

ISSN

2177-4382

Autores

Georg Robert Sadowski, CORIOLANO DE M. DIAS NETO,

Tópico(s)

Geological and Geophysical Studies

Resumo

The Cabo Frio lineament was defined as a continental expression of a ridge offset Formed during the separation of the continents. It coincides with a line o f seismic activity, with several alkalines of Senonian and Paleocene age, and with disruptive structures. Historical and recent earthquakes were located by intensity and instrumental data. The alkaline lineament coincides vith a Senomian-Paleocene plate trajectory obtained through back rotation of the continents along the poles defined by Ladd (1975). Geochronologically the alkalines show a trend of lower ages towards the east. These features indicate a possible existence of a hot spot type mechanism in this area associated with the major mesozoic thermal Ponta Grossa-Mossamedes swell.

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