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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.)

Stratigraphy and structure of Cerro Jarau: new proposal

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Author(s):
Joana Paula Sánchez [1] ; Luiz Sérgio Amarante Simões [2] ; Lee Ernest Balster Martins [3]
Total Authors: 3
Affiliation:
[1] Universidade Estadual Paulista Júlio de Mesquita Filho. Instituto de Geociências e Ciências Exatas. Programa de Pós-Graduação em Geologia Regional - Brasil
[2] Universidade Estadual Paulista Júlio de Mesquita Filho. Instituto de Geociências e Ciências Exatas. Departamento de Petrologia e Metalogenia - Brasil
[3] Universidade Estadual Paulista Júlio de Mesquita Filho. Instituto de Geociências e Ciências Exatas - Brasil
Total Affiliations: 3
Document type: Journal article
Source: BRAZILIAN JOURNAL OF GEOLOGY; v. 44, n. 2, p. 265-276, 2014-06-00.
Abstract

The Cerro do Jarau structure is located near the town of Quaraí, in the Rio Grande do Sul state, close to the international boundary with Uruguay. This circular feature has a diameter with approximately 8 km, presents some evidence of an origin by a meteoritic impact. It is located in the Paraná Basin and characterized by a central area with occurrence of sandstone surrounded by basalts of Serra Geral Formation. Previous works considered the structure as a dome-shaped feature. The objective of this paper is to present new data on the stratigraphy and structure of the Cerro Jarau, showing that the sandstones are structurally and stratigraphically overlying the basalts and both units exhibit centripetal dips. The structure of Cerro Jarau is therefore a basin-like feature and not a dome as admitted in previous studies. (AU)