Jéssica Thaís Ferreira Oste

• PostDoc Position at Federal University of Rio de Janeiro

Tufas are freshwater carbonate rocks that form in continental environments through a combination of physical, chemical, and biological processes. This study investigates the role of microorganisms in the precipitation of Quaternary tufa deposits in the Serra da Bodoquena Formation, in the Bonito region. Two sites along the Mimoso River, named Taíka...

Diagenetic modifications in tufa are difficult to distinguish from primary processes as they occur soon after sedimentation. Active and inactive fossil, probably Pleistocene to mid-Holocene, tufas in the Bonito region (Brazilian Midwest) were investigated to characterize primary and early diagenetic changes. Textural observations, analyses of catho...

The Pleistocene and Holocene tufas of the Serra da Bodoquena (Bonito region, Brazilian Midwest) consist of several deposits related to a karstic system developed in the carbonatic rocks of Corumbá Group. Tufas currently forming in the Serra da Bodoquena area (Mimoso and Formoso rivers) were investigated for a better understanding of which environme...

As tufas são rochas carbonáticas continentais precipitadas a partir de um fluido rico em bicarbonato com temperatura ambiente, comumente apresentam restos de micro e macrovegetais, invertebrados e bactérias. As tufas de Bonito (MS) ocorrem principalmente ao longo de drenagens, e estão relacionados com rochas subjacentes do Grupo Corumbá, sendo inse...