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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

The Serra Alta Formation, Permian, in the central-eastern portion of São Paulo State, Paraná Basin, Brazil

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Author(s):
Lucas Veríssimo Warren ; Mario Luis Assine ; Marcello Guimarães Simões ; Claudio Riccomini ; Luís Eduardo Anelli
Total Authors: 5
Document type: Journal article
Source: BRAZILIAN JOURNAL OF GEOLOGY; v. 45, n. 1, p. -, Mar. 2015.
Abstract

The delimitation and mapping of the Serra Alta Formation in the São Paulo State, Brazil, has always been a focus of controversy in the Brazilian geological community. Despite its large extension in subsurface, which may be comparable to the Irati Formation, the Serra Alta Formation still needs more detailed studies on its stratigraphic position, fossil content, depositional systems and age. In the east-central portion of the São Paulo State, the Serra Alta Formation overlies the Irati Formation and is predominantly composed of dark grey pelitic facies. The unit is mapped from the southern boundary of the São Paulo State to the Gibóia Dome, located in the county of Rio das Pedras. In this place, the Serra Alta and Teresina formations are replaced by the red colored pelites of the Corumbataí Formation, unit that extends to north beyond the state boundaries and may be considered correlated to these units. In this work, we present columnar sections and describe the contacts of the Serra Alta Formation with vertically adjacent Permian units. We also present the detailed facies analysis, in order to characterize the depositional system. The investigation of subsurface profiles also enabled a better understanding of the architectural patterns of the succession, helping to determine its real distribution and stratigraphic position in the central-south of São Paulo State. The integration of the data allowed identifying a particular transgressive stacking pattern, contributing to detail the late Permian regressive cycle in the Paraná Basin. (AU)

FAPESP's process: 11/20864-4 - Sistematic revision of the Permian bivalves from the base of Corumbataí Formation and its significance to the evolution of the endemic malacofauna of Passa Dois Group, Paraná Basin
Grantee:Luiz Eduardo Anelli
Support type: Regular Research Grants
FAPESP's process: 10/19584-4 - Tectonics and sedimentation of Itapucumi group in the context of Ediacaran carbonatic platforms: a geochemical, geochronological, paleomagnetic and biostratigraphic approach
Grantee:Lucas Verissimo Warren
Support type: Scholarships in Brazil - Post-Doctorate