Beatriz Christofoletti

Universidade Estadual Paulista (Unesp)

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Lucas V. Warren

Universidade Estadual Paulista (Unesp)

Mário Luís Assine

Universidade Estadual Paulista (Unesp)

Marcello Guimarães Simões

Universidade Estadual Paulista (Unesp)

Mariza Gomes Rodrigues

Universidade Estadual Paulista (Unesp)

Filipe Giovanini Varejão

Universidade Federal de Ouro Preto

Daniel Sedorko

Universidade do Vale do Rio dos Sinos

Cristiano Lana

Universidade Federal de Ouro Preto

Luciano Alessandretti

Universidade Federal de Uberlândia

Caio César Rangel

Universidade Federal de Pernambuco

Heitor Francischini

Universidade Federal do Rio Grande do Sul

Cooperative Institutions

Universidade Estadual Paulista (Unesp)

Instituto de Geociencias

National Council for Scientific and Technological Development

Universidade de São Paulo

Novelis (Canada)

Diagnostics for the Real World (United Kingdom)

Universidade Federal de Uberlândia

Sociedade Brasileira de Geofísica

Universidade Federal do Rio Grande do Sul

Consejo Nacional de Investigaciones Científicas y Técnicas

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Dinos among the dunes: Dinoturbation in the Pirambóia Formation (Paraná Basin), São Paulo State and comments on cross-section tracks

Journal of South American Earth Sciences (2021)

Beatriz Christofoletti Bernardo de C.P. e M. Peixoto Lucas V. Warren Lucas Inglez Marcelo Adorna Fernandes

Stratigraphic unit

Section (typography)

10.1016/j.jsames.2021.103252

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Citations (19)

VERTEBRATE PALEOBURROW AS A SEASONALITY INDICATOR IN EARLY CRETACEOUS TRÊS BARRAS FORMATION (BRAZIL)

Journal of South American Earth Sciences (2024)

Caio César Rangel Heitor Francischini Luciano Alessandretti Warren Covelé Lucas Beatriz Christofoletti

Seasonality

10.1016/j.jsames.2024.105183

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Vertebrate Paleoburrow as a Seasonality Indicator in Early Cretaceous Três Barras Formation (Brazil)

Caio César Rangel Heitor Francischini Luciano Allessandretti Lucas V. Warren Beatriz Christofoletti

Seasonality

10.2139/ssrn.4963610

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Rising mollusk bivalves from the ashes: Geologic, biostratigraphic and evolutionary implications from tuff data in the Permian Corumbataí Formation, Paraná Basin, Brazil

Journal of South American Earth Sciences (2023)

Beatriz Christofoletti Lucas V. Warren Filipe Giovanini Varejão Marcello Guimarães Simões Lucía E. Gómez-Peral

Biozone

Large igneous province

10.1016/j.jsames.2023.104750

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Not all shell beds are made equal: Recognizing singular event‐concentrations in megalakes

Sedimentology (2024)

Mariza Gomes Rodrigues Filipe Giovanini Varejão Franz T. Fürsich Beatriz Christofoletti Suzana Aparecida Matos

ABSTRACT Event deposition accounts for a large part of the preserved sedimentary record. Tempestites, tsunamites and turbidites are among the most common event deposits in marine and lacustrine systems. While facies models exist for these deposits, the challenge lies in the fact that diverse triggers can give rise to analogous depositional processes and comparable taphonomic features, making it difficult to pinpoint the precise trigger for an event bed. Hence, five distinct modern‐type shell concentrations are studied in Permian strata from the Paraná Basin, West Gondwana, to access the parameters to discriminate event phenomena, and their associated depositional and taphonomic processes. During this time interval, the basin underwent continuous continentalization due to orogenic events, leading to the entrapment of epeiric marine waters and the transformation of the system into a megalake, supporting a diverse and endemic freshwater bivalve fauna. While sedimentation was primarily influenced by meteorological events, certain stratigraphic intervals were also affected by tectonically active periods and meteor impact events. The different products are categorized into bioclastic sandstone, shell bed, shell‐rich phosclast rudstone and shell‐rich conglomerate that are interpreted as proximal and distal tempestites and tsunamites, respectively. Finally, the products and the processes that lead to the deposition of tempestites and tsunamites are compared to establish diagnostic signatures that may be applied to differentiate these event concentrations in analogous settings from the geological record.

10.1111/sed.13221

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Rising Mollusk Bivalves from the Ashes: Geologic, Biostratigraphic and Evolutionary Implications from Tuff Data in the Permian Corumbataí Formation, Paraná Basin, Brazil

Beatriz Christofoletti Lucas V. Warren Filipe Giovanini Varejão Marcello Guimarães Simões Lucía Elena Gómez-Peral

During the Permian, the southwestern Gondwana margin experienced episodes of intense volcanism tied to the Choiyoi magmatism. Several ash-fall horizons related to this magmatic event are preserved within the Late Paleozoic lake-sea sedimentary record of the Paraná Basin. Furthermore, near the Permian-Triassic boundary, a meteor fell in the northern border of the basin, generating unshocked zircon grains preserved in a stratigraphic marker called the Porangaba Bed. In this study, a new U-Pb zircon age of 265.17 ± 3.2 Ma is presented for a volcanic tuff in the upper part of the Corumbataí Formation, near the stratigraphic interval of the Porangaba Bed. In addition, Lu-Hf isotopic compositions of the zircon grains, whole-rock geochemistry, and atmospheric circulation data indicate the affinity of the ash-fall horizon with the Frontal Cordillera source. The combination of these new and previous U-Pb ages allowed us to draw a more realistic scenario of the the evolution of bivalve mollusk of the Corumbataí Formation and to improve the use of these macrofossils in the biostratigraphy of the Permian succession of the Paraná Basin. In this context, we established the lower limit of the Pinzonella neotropica-Jacquesia brasiliensis Association Biozone between 262.38 ±5.7 Ma and 257.5 ±2.2 Ma. Hence, in the north and central Paraná Basin the local resolution of this biozone is of ~5 Ma. Moreover, the range of this biozone indicates that the endemic bivalves survived the end-Guadalupian (ca. 259 Ma) extinction event unscathed.

10.2139/ssrn.4636722

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LONG-DISTANCE FLUVIAL SAND ROUTES IN JURASSIC OF WESTERN GONDWANA: FLUVIAL-AEOLIAN STRATA OF PIRAMBÓIA FORMATION

Abstracts with programs - Geological Society of America (2024)

Gabriel Bertolini Beatriz Christofoletti Bernardo de C.P. e M. Peixoto Lucas V. Warren Claiton Marlon dos Santos Scherer

10.1130/abs/2024am-403681

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