Geologic conceptual model of the municipality of Sete Lagoas (MG, Brazil) and the surroundings

Autor(es)

Galvao, Paulo ^[1] ; Hirata, Ricardo ^[1] ; Cordeiro, Arnaldo ^[2] ; Barbati, Daniela ^[2] ; Penaranda, Jorge ^[3]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Inst Geociencias, Ctr Pesquisas Aguas Subterraneas CEPAS, Rua Lago 562, BR-05508080 Sao Paulo, SP - Brazil

^[2] Servmar Ambiental & Engn, Av Ceci 2206, BR-04065004 Sao Paulo, SP - Brazil

^[3] Univ Sao Paulo, Inst Geociencias, Lab Modelos Fis LAMO, Rua Lago 562, BR-05508080 Sao Paulo, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Anais da Academia Brasileira de Ciências; v. 88, n. 1, p. 35-53, MAR 2016.
• Citações Web of Science: 3

Resumo

ABSTRACT The study area is located in the state of Minas Gerais, Brazil, among the municipalities of Pedro Leopoldo, Matozinhos, and Sete Lagoas, with Velhas River as the eastern boundary. It is located in the São Francisco Craton, where carbonated argillo-arenaceous sediments are emplaced giving origin to the Bambuí Group, in the São Francisco Basin. Despite the geological knowledge previously developed, the region needs work on integration and detailing of such information. For this reason, the main objective was to contribute to the quality of the geologic cartography, the spatial distribution, and the structural framework geometry. Thus, geologic mapping, aerial photography interpretation, and evaluation of 270 lithologic well profiles were carried out. It was possible to establish a new geologic perspective of the region by obtaining the detailed geologic map of the municipality of Sete Lagoas, 14 geologic cross sections, and a geologic conceptual model. The study showed that the area is within a basin border, presenting a geometry conditioned by horst and graben system controlled by faulting. This structural feature displaced stratigraphic sequences positioning them side by side with lithologic sequences with different ages. (AU)

• Processo FAPESP: 12/12846-9 - Caracterização hidrogeológica e implantação de um modelo de gestão de recursos hídricos subterrâneos para aquíferos cársticos, no município de sete lagoas (mg)
• Beneficiário: Paulo Henrique Ferreira Galvão
• Modalidade de apoio: Bolsas no Brasil - Doutorado