A5043747108- Geology and Paleoclimatology Research
- Paleontology and Stratigraphy of Fossils
- Geomagnetism and Paleomagnetism Studies
- Evolution and Paleontology Studies
- Geological and Geophysical Studies
- Geological formations and processes
- Maritime and Coastal Archaeology
- Nuclear Physics and Applications
- Astro and Planetary Science
- Geophysics and Gravity Measurements
- Seismic Imaging and Inversion Techniques
- Climate variability and models
- Pleistocene-Era Hominins and Archaeology
- Geochemistry and Geologic Mapping
- Hydrocarbon exploration and reservoir analysis
- Archaeology and ancient environmental studies
- Methane Hydrates and Related Phenomena
- Astronomical Observations and Instrumentation
- Mineral Processing and Grinding
- Soil Geostatistics and Mapping
- earthquake and tectonic studies
- Geophysics and Sensor Technology
- Historical Astronomy and Related Studies
- Geochemistry and Elemental Analysis
Universidade de São Paulo
2022-2024
Universidade Federal do Rio Grande do Sul
2020-2022
Universidade do Vale do Rio dos Sinos
2017-2020
The Aptian was characterized by dramatic tectonic, oceanographic, climatic and biotic changes its record is punctuated Oceanic Anoxic Events (OAEs). timing duration of these events are still contentious, particularly the age Barremian-Aptian boundary. This study presents a cyclostratigraphic evaluation high-resolution multiproxy dataset (δ13C, δ18O, MS ARM) from Poggio le Guaine core. identification Milankovitch-band imprints allowed us to construct 405-kyr astronomically-tuned model that...
Abstract Orbital cycles are related to variations of Earth's orbit through time and exert profound control on glacial interglacial climates due changes in insolation. In this study, we aim test whether orbital millennial‐scale climate conditioned the deposition rhythmites southern Gondwana during Late Paleozoic Ice Age (LPIA). We present first cyclostratigraphic study based X‐ray fluorescence records from a 27‐m‐thick interval LPIA southeastern border Paraná Basin, Brazil. TiO 2 Fe O 3...
<title>Abstract</title> During the Quaternary Period, major fluctuations between wet and dry climate have been implicated in expansion contraction of Amazon forests associated changes their biodiversity. Yet, most Period remains poorly known because complete lack long geologic records from basin. Here we reconstruct spanning last ~1.93 million years (myr) a piston core collected offshore mouth River. High-resolution titanium-to-calcium (Ti/Ca) iron-to-potassium (Fe/K) values sediments...
We investigate here the potential of spectroscopy in identification and quantification mixtures kaolinite goethite from Continuum Removal (CR) spectra short-wave infrared. For this purpose, spectral measurements kaolinite, goethite, controlled these minerals were systematically performed. The continuum results removed, depth diagnostic absorption was calculated compared with a library. It possible to identify high determination coefficient (R2>0.95) when its proportion reaches at least 60%...
&lt;p&gt;The Late Paleozoic Ice Age (LPIA), one of the best known and prolonged glaciation events in Earth's history, resulted widespread deposition glacial sediments over Gondwana (Crowell, 1999). Some most important LPIA deposits multiple glacial-deglacial episodes (Isbell et al., 2003) were preserved Itarar&amp;#233; Group Paran&amp;#225; Basin (Brazil). This unit presents continental marine glacially-influenced formed by advances retreats glaciers consists an opportunity...