Departamento de Geologia e Recursos Naturais
Permian Western Gondwana food chain elucidated by coprolites from the Corumbataí Formation (Paraná Basin, Brazil)
Fossilized feces (coprolites) are remarkable tools for paleobiology and paleoecology assessment.
Pesquisa desvenda passado vulcânico da Amazônia
Publicado originalmente no site da Unicamp.
Se hoje a região amazônica é dominada pela exuberante floresta tropical, há bilhões de anos a área apresentava uma intensa atividade vulcânica, algo que já é de amplo conhecimento de geólogos e pesquisadores, mas cuja pesquisa, por conta de características da própria floresta, ainda é um desafio.
Projeto geobike: pedalando sobre rochas e motivando ações alternativas para trabalhos de campo em geociências
Remote sensing reveals unprecedented sublethal impacts of a 40-year-old oil spill on mangroves
Abstract: Oil spills cause long-lasting mangrove loss, threatening their conservation and ecosystem services worldwide. Oil spills impact mangrove forests at various spatial and temporal scales. Yet, their long-term sublethal effects on trees remain poorly documented. Here, we explore these effects based on one of the largest oil spills ever recorded, the Baixada Santista pipeline leak, which hit the mangroves of the Brazilian southeastern coast in 1983.
Rhyacian-Orosirian Khondalite Belt in the Borborema Province (NE Brazil): An active margin setting based on U–Pb zircon and monazite constraints
Khondalite belts are of special importance is delimiting old suture zones and in palaeocontinental reconstruction of Precambrian terrains. In the South-American Platform, khondalitic rocks surround cratonic areas and Archean blocks reworked in the Neoproterozoic, an example of which being the Ceará Khondalite Belt (CKB). Located in the northern portion of the Borborema Province in NE Brazil, CKB is here described by means of its petrographic, structural, and LA-SF-ICP-MS zircon and monazite U–Pb geochronological characteristics.
Rosaly Lopes, da Nasa, é a convidada do Programa "César Lattes" do Cientista Residente
A pesquisadora do Jet Propulsion Laboratory, da Nasa, é a nova cientista residente da Unicamp, a partir de um convite feito por Alvaro Crósta, professor aposentado do IG e membro do Conselho Científico e Cultural do Instituto de Estudos Avançados (IdEA).
Veja a programação divulgada pelo do IdEA:
Período de residência
29/04/2024 – 25/11/2024
Área
Astronomia e Geologia Planetária
Sedimentary processes and paleoenvironment reconstruction of the Barra Velha formation, Santos Basin, Brazilian pre-salt
The Barra Velha carbonates are widely known for their complexity regarding facies, diagenetic features, and depositional history. The absence of recent analogues representing the depositional setting of these rock formations leaves many uncertainties concerning the sedimentary process that generated them.
Taphonomic analysis of microfossil bonebeds from Western Gondwana: a case study from the late Permian Corumbataí Formation (Paraná Basin, Brazil)
Storm deposits are common in geological records and encompass a variety of fossil assemblages affected by taphonomic processes that can biased fossil preservation. Here, we describe a microfossil bonebed to demonstrate the role played by certain filters in the final composition of storm-generated fossil accumulations. These layers are recurrent in the Paraná Basin and possibly in other localities of Gondwana, outcropping over 1000 km in the Permian units of the basin.