A5039780764- Geology and Paleoclimatology Research
- Geomagnetism and Paleomagnetism Studies
- Geological and Geophysical Studies
- Paleontology and Stratigraphy of Fossils
- Methane Hydrates and Related Phenomena
- Geological formations and processes
- Geochemistry and Elemental Analysis
- Geological and Geochemical Analysis
- Seismic Imaging and Inversion Techniques
- Evolution and Paleontology Studies
- Hydrocarbon exploration and reservoir analysis
- Geochemistry and Geologic Mapping
- Marine Biology and Ecology Research
- Marine and environmental studies
- Pleistocene-Era Hominins and Archaeology
- earthquake and tectonic studies
- Magnetic and Electromagnetic Effects
- Geophysical and Geoelectrical Methods
- Astro and Planetary Science
- Microbial Community Ecology and Physiology
- Isotope Analysis in Ecology
- Geological Studies and Exploration
- Reservoir Engineering and Simulation Methods
- Geophysics and Gravity Measurements
- Geological Formations and Processes Exploration
Universidade de São Paulo
2016-2025
Institut Français de la Mer
2018-2024
Universidade Brasil
2023
Western Washington University
2010-2019
Universidade Cidade de São Paulo
2019
Instituto Oceanográfico de la Armada del Ecuador
2014-2016
National Oceanography Centre
2011-2013
University of Southampton
2011-2013
Istituto Nazionale di Geofisica e Vulcanologia
2004-2011
University of California, Davis
2007-2008
Geological records from the Antarctic margin offer direct evidence of environmental variability at high southern latitudes and provide insight regarding ice sheet sensitivity to past climate change. The early mid-Miocene (23-14 Mya) is a compelling interval study as global temperatures atmospheric CO2 concentrations were similar those projected for coming centuries. Importantly, this time includes Miocene Climatic Optimum, period warmth during which average surface 3-4 °C higher than today....
Abstract The South Asian Monson (SAM) is one of the most intense climatic elements yet its initiation and variations are not well established. Dating deposits SAM wind-driven currents in IODP cores from Maldives yields an age 12. 9 Ma indicating abrupt onset, over a short period 300 kyrs. This coincided with Indian Ocean Oxygen Minimum Zone expansion as revealed by geochemical tracers onset upwelling reflected sediment’s content particulate organic matter. A weaker ‘proto-monsoon’ existed...
International Ocean Discovery Program (IODP) Expedition 359 cored sediments from eight borehole locations in the carbonate platform of Maldives Indian Ocean. The expedition set out to unravel timing Neogene climate changes, particular evolution South Asian monsoon and fluctuations sea level. these changes are assessed by dating resultant sedimentary alterations that mark stratigraphic turning points system. first four during early middle Miocene related sea-level changes. These reliably...
Abstract During the mid-Cretaceous, Earth experienced several environmental perturbations, including an extremely warm climate and Oceanic Anoxic Events (OAEs). Submarine volcanic episodes associated with formation of large igneous provinces (LIPs) may have triggered these perturbations. The osmium isotopic ratio ( 187 Os/ 188 Os) is a suitable proxy for tracing hydrothermal activity LIPs formation, but Os data from mid-Cretaceous are limited to short time intervals. Here we provide...
Research Article| March 01, 2007 The middle Eocene climatic optimum event in the Contessa Highway section, Umbrian Apennines, Italy Luigi Jovane; Jovane 1Istituto Nazionale di Geofisica e Vulcanologia, Via Vigna Murata 605, 00143 Rome, Italy, and Dipartimento Fisica, Università Bologna, Berti Pichat 8, 40127, Search for other works by this author on: GSW Google Scholar Fabio Florindo; Florindo 2Istituto Rodolfo Coccioni; Coccioni 3Istituto Geologia Centro Geobiologia, degli Studi Urbino...
Abstract The Middle Eocene Climatic Optimum (MECO) is a global warming event that occurred at about 40 Ma. In comparison to the most known events of Paleogene, MECO has some peculiar features make its interpretation controversial. main peculiarities are duration ~500 kyr and carbon isotope signature varies from site site. Here we present new oxygen stable isotopes records (δ 13 C δ 18 O) three foraminiferal genera dwelling different depths throughout water column sea bottom during middle...
The Rio Grande Rise (RGR) is a large elevation in the Atlantic Ocean and known to host potential mineral resources of ferromanganese crusts (Fe–Mn), but no investigation into their general characteristics have been made detail. Here, we investigate chemical mineralogical composition, growth rates ages initiation, phosphatization relatively shallow-water (650–825 m) Fe–Mn dredged from summit RGR by using computed tomography, X-ray diffraction, 87Sr/86Sr ratios, U–Th isotopes, various...
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...
Terra Nova, 24, 380–386, 2012 Abstract A high‐resolution, integrated stratigraphic framework (stable isotope stratigraphy, standard calcareous nannofossil and foraminiferal biostratigraphy, magnetostratigraphy) together with geochemical rock magnetic properties’ analyses of a complete well‐preserved succession at Contessa Valley (Gubbio, central Italy) have offered an excellent opportunity to identify constrain the Palaeocene early Eocene hyperthermals carbon excursions (CIEs). In addition,...
Abstract. The Maldives Archipelago (Indian Ocean), composed of two rows atolls that enclose an inner sea, offers excellent study site to explore the forcings carbonate production at platforms. Glacial–interglacial sea-level changes have been claimed be main factor controlling platform factories; however, climatic factors may also impact. In this work we used geochemical compositional records, obtained by X-ray fluorescence (XRF) core-scanning from International Ocean Discovery Program (IODP)...
The Abu Darag sub-basin in Egypt is a significant hydrocarbon province. This study provides the first thorough evaluation of petroleum system Northern Gulf Suez, specifically targeting regions with tectonically influenced paleo highs. research novel its holistic approach, linking tectonic activity generation and accumulation, particularly Nukhul Formation. In NDARAG-1 well, Formation serving as main reservoir, petrophysical analysis estimates an average net pay 126 ft Formation, 19% shale...
Abstract Magnetostratigraphy is best known as a technique that employs correlation among different stratigraphic sections using the magnetic directions define geomagnetic polarity reversals marker-horizons. The ages of provide common tie points sections, allowing accurate time correlation. Recently, magnetostratigraphy has acquired broader meaning, now referring to many types measurements within sequence. Many these and age control not only for older younger boundaries interval, but also...
Ferromanganese nodules grow by precipitation of metals from seawater and/or sediment pore water. The formation different genetic types depends on the composition and redox conditions water upper layers, depth, primary productivity in surface waters. Many characteristics have been used to investigate their genesis. In this paper, we compare environments using Computed Tomography, Scanning Electron Microscopy-Energy Dispersive X-ray Spectroscopy, Micro Fluorescence data better understand how...