A5055558563- Geological and Geochemical Analysis
- Geology and Paleoclimatology Research
- earthquake and tectonic studies
- Geochemistry and Geologic Mapping
- Geological and Geophysical Studies Worldwide
- High-pressure geophysics and materials
- Geological formations and processes
- Evolution and Paleontology Studies
- Mineralogy and Gemology Studies
- Planetary Science and Exploration
- Maritime and Coastal Archaeology
- Archaeology and ancient environmental studies
- Pleistocene-Era Hominins and Archaeology
- Polar Research and Ecology
- Archaeological and Geological Studies
- Diamond and Carbon-based Materials Research
- Geomagnetism and Paleomagnetism Studies
- Astro and Planetary Science
- Geological Formations and Processes Exploration
- Paleontology and Stratigraphy of Fossils
- Marine and environmental studies
- Nuclear Physics and Applications
- Cryospheric studies and observations
- Radioactive contamination and transfer
- Advanced X-ray and CT Imaging
Institute of Geosciences and Earth Resources
2001-2018
National Research Council
2008
Istituto Nazionale di Geofisica e Vulcanologia
1996
Lava vents
This paper and the associated 1:50,000 geological map are devoted to describe features of Monte Amiata region. The tectono-stratigraphic setting region includes, from bottom top, 1) pre-Neogene stack tectonic units, made up Tuscan, Sub-Ligurian Ligurian Tectonic Units, 2) Neogene sedimentary deposits 3) Pleistocene Radicofani volcanoes. units Tuscan Nappe, belonging Domain, Canetolo Unit, Domain. These regarded as representative thinned continental margin Adria plate, topped by Santa Fiora...
Research Article| April 01, 2008 Microtektites from Victoria Land Transantarctic Mountains L. Folco; Folco 1Museo Nazionale dell'Antartide, Università di Siena, Via Laterina 8, 53100 Italy Search for other works by this author on: GSW Google Scholar P. Rochette; Rochette 2Centre Européen de Recherche et d'Enseignement des Géosciences l'Environnement (CEREGE), Aix-Marseille Université, CNRS, PB80 13545, Aix en Provence, Cedex 4, France N. Perchiazzi; Perchiazzi 3Dipartimento Scienze della...
Monte Amiata is a small volcano composed by trachytic to olivine latitic lava flows and domes emplaced in very short time between 305 231 ka. The main petrographic features are represented the occurrence of i) abundant rounded magmatic enclaves increasing dimension quantity passing from early late erupted volcanic rocks, ii) large sanidine megacrysts, mainly confined second stage activity characterised emplacement exogenous massive flows, iii) mafic with intermediate compositions silica-rich...
The duration of the Mt. Amiata volcanic activity is still a matter debate, in spite presence several geochronological data literature. We performed new 40Ar-39Ar dating on sanidinegroundmass pairs upper stratigraphic units: Dome and massive Lava flows Complex (DLC) Olivine Latitic final Lavas (OLF). aim was twofold: to check reliability sanidine ages as geochronometer these products, questioned literature, better define chronology late this volcano. Ages obtained coexisting groundmass...
Abstract— A new 40 Ar/ 39 Ar data set is presented for tektites from the Central European strewn field (moldavites). This only that entirely situated in a continental environment and still characterized by scattered ages (14–15.3 Myr). The main objectives of study were to define more precisely moldavite formation age provide good calibration glass standard proposed fission‐track dating. laser total fusion obtained on chips 7 individual specimens Southern Bohemian Moravian subfields are...
The upper Jurassic El Quemado Complex was sampled at 36 sites from five localities in the cordilleran foothills of southern Patagonia between Lago Argentino and Posadas–Sierra Colorada, middle Marifil Formation 12 Somuncurá Massif near Camarones. main lithology ignimbrite, with minor tuff lava. Petrographical SEM observation show that rocks suffered an intense, high-temperature alteration which resulted transformation most primary Ti-magnetite pseudobrookite, rutile Ti-haematite Fe hydrated...
Abstract Two volcaniclastic successions intercalated in Pliocene basinal clays from the Southern Apennines have been analysed to determine their provenance and relationship with geodynamic evolution of Western Mediterranean. The studied deposits are exclusively made up ashy pyroclasts, dominated by fresh acidic intermediate glass, mostly form shards, pumice fragments groundmass vitrophyric texture. Crystals include Pl, Opx, Cpx, Hbl rare Bt. Sedimentological features suggest that volcanic...
New analyses have been performed in order to enhance the data‐set on independent ages of four glasses that proposed as reference materials for fission‐track dating. The results are follows. Moldavite ‐ repeated 40 Ar/ 39 Ar age determinations samples from deposits Bohemia and Moravia yielded an average 14.34 ± 0.08 Ma. This datum agrees with other recent is significantly younger than 15.21 0.15 Ma determined early 1980s. Macusanite (Peru) ‐four K‐Ar ranging 5.44 0.06 5.72 0.12 published...
A mafic dike is intruded into two SW-NE trending normal faults, and crosscuts the Mt. Alpe Cherts Nisportino Fm. in Monte Castello area, Elba Island, Tuscan Archipelago. The dark grey to brownish colour, it has a porphyritic texture with phenocrysts of plagioclase + clinopyroxene olivine, seldom xenocrysts large k-feldspar. original mineralogy strongly altered replaced by secondary minerals. Clinopyroxene some cases are still preserved, whereas olivine entirely smectite aggregates. Euhedral...
Terra Nova, 22, 494–500, 2010 New detailed swath bathymetry and bottom samples from Coral Patch Ormonde seamounts provide constraints on the emplacement of Madeira hotspot in Eastern Atlantic Ocean. Swath bathymetric data document that is a composite structure, made up at least nine distinct volcanic centres. Lithified pelagic carbonates infilling fissures lava blocks constrain minimal age for volcanism Early Miocene represent first documentation acting as an offshore terrigenous-starved...