| Revista: | Anais da Academia Brasileira de Ciencias |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000408895 |
| ISSN: | 0001-3765 |
| Autores: | Oliveira, Emiliano C1 Rossetti, Dilce F2 Utida, Giselle3 |
| Instituciones: | 1Universidade Federal de Sao Paulo, Instituto de Saude e Sociedade, Santos, Sao Paulo. Brasil 2Instituto Nacional de Pesquisas Espaciais, Divisao de Sensoriamento Remoto, Sao Jose dos Campos, Sao Paulo. Brasil 3Universidade de Sao Paulo, Instituto de Geociencias, Sao Paulo. Brasil |
| Año: | 2017 |
| Periodo: | May |
| Volumen: | 89 |
| Paginación: | 407-429 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Analítico, descriptivo |
| Resumen en inglés | This paper presents a sedimentological and stratigraphical study of Quaternary (Middle to Late Pleistocene/ Holocene) continental carbonates outcrops inside Pantanal Basin and its surroundings, especially in Serra da Bodoquena, Pantanal do Miranda and Corumbá/Ladário plateau, in the state of Mato Grosso do Sul, as well as in Serra das Araras, in the state of Mato Grosso. The aim is to understand the depositional paleoenvironments and analyse climate and tectonic influences in their genesis and evolution. The results show that the deposition of these continental carbonates started in the Middle to Late Pleistocene and have continued, with some interruptions, until the present days. Sedimentary successions were identified in the different areas, without complete correlation. Two sedimentary successions separated by an erosional surface were described in Serra da Bodoquena and Serra das Araras. In Corumbá and Pantanal do Miranda, only one succession was described. These successions were deposited in elongated lakes parallel to fault planes; small lakes, related plains and plateaus; springs related to cliffs produced by faulting; rivers conditioned by topographic variation. The climatic interpretation, without proper temporal resolution, obtained by the stable-isotope composition and stratigraphic interpretation, indicates alternation of dry and wet periods. The Neoproterozoic faults with their neotectonics and the subsidence of the Pantanal Basin, are the major control for carbonated water flow and development of depositional areas, gradually turning plateaus into slight tilted areas, allowing the evolution of depositional systems from lakes to rivers |
| Disciplinas: | Geociencias, Biología |
| Palabras clave: | Geofísica, Geología, Paleontología, Brasil, Carbonatos, Holoceno, Paleoambiente, Cuencas, Pantanal, Pleistoceno |
| Keyword: | Earth sciences, Biology, Geology, Geophysics, Paleontology, Central Brazil, Carbonates, Holocene, Paleoenvironments, Basins, Pantanal, Brazil, Pleistocene |
| Texto completo: | Texto completo (Ver PDF) |
