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Notas adicionais sobre os ritmitos de Itu, Paleozóico Superior da Bacia do Paraná, São Paulo

1986; Volume: 7; Issue: 1-2 Linguagem: Inglês

10.5935/0100-929x.19860004

2176-1892

Setembrino Petri,

Fish biology, ecology, and behavior

This paper deals with the classical CarbonÍferous lithosome "varvito de Itu", developed in the region, State of São Paulo, Brazil. New data about this lithosome as well as its relationship to other ones, were pointed out by the study af the lithological cores of the well IG-IT 1/85 and the study of the lithological description of an older well drilled at São José locality, 2km SSW from the city of Itu. As the result of these studies, the assumed minimum geographical extension of the "varvito de Itu lake" is enlarged to an EW 8km to a M-S 9km. It is also stressed in this paper the widespread presence, in the region, of a finlng upward diamictite resting on the crystalline basement.