Search results for "Sediment"

showing 10 items of 1648 documents

COMBINED INTERPRETATION OF ACOUSTIC VELOCITY AND RESISTIVITY MODELS: THE SIRIPRO PROJECT CASE

2009

SIRIPRO PROJECTSettore GEO/02 - Geologia Stratigrafica E SedimentologicaACOUSTIC VELOCITY
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TOWARDS THE INTEGRATION OF MAGNETOTELLURIC WITH GEOLOGICAL SEISMIC AND GRAVITY DATA WITHIN THE SIRIPRO PROJECT

2009

SIRIPRO PROJECTSettore GEO/02 - Geologia Stratigrafica E SedimentologicaSEISMIC AND GRAVITY DATA
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SIRIPRO PROJECT: FIELD AND STRATIGRAPHICAL-STRUCTURAL DATA FROM N-S CENTRAL SICILY TRANSECT

2009

SIRIPRO PROJECTSettore GEO/02 - Geologia Stratigrafica E SedimentologicaSTRATIGRAPHYCENTRAL SICILY
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(Table 1) Age determination of sediment profile SO90-41KL/63KA

2002

The 14C ages of planktonic foraminifers Globigerinoides sacculifer bracketing the Younger Dryas in a d18O record of Globigerinoides ruber from a laminated sediment core on the Pakistani continental margin suggest that surface reservoir ages in the Arabian Sea were in excess of 1000 years during the deglaciation. A least squares error fit of a detailed 14C chronology to the (atmospheric) tree ring record gave variable early Holocene reservoir ages between 780 and 1120 years, well above the prebomb value of 640 years. Mid-Holocene reservoir ages are less well constrained but were probably closer to the prebomb value. The method used to fit individual core sections to the tree ring record was …

SO90SectionCalendar ageReservoir age standard errorAge 14C calibratedDEPTH sediment/rockAge commentAge dated materialAge datedSonneAge dated standard deviationReservoir ageAge 14C AMSComposite Core
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Large-scale glaciotectonically-deformed Pleistocene sediments with deformed layers sandwiched between undeformed layers, Baltmuiža site, Western Latv…

2018

SSDS:NATURAL SCIENCES::Earth sciences::Exogenous earth sciences::Sedimentology [Research Subject Categories]Baltmuiža sitewater-escape structurePleistocene sediments:NATURAL SCIENCES::Earth sciences::Exogenous earth sciences::Quaternary geology [Research Subject Categories]
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Strutture deformative sindeposizionali nelle calcareniti Pleistoceniche del settore orientale dell'Isola di Favignana (Sicilia, Italia)

2013

SSDSPleistoceneSettore GEO/02 - Geologia Stratigrafica E Sedimentologicatettonica sinsedimentariaSettore GEO/03 - Geologia StrutturaleSicilia
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Seismogenic rotational slumps and translational glides in pelagic deep-water carbonates. Upper Tithonian-Berriasian of Southern Tethyan margin (W Sic…

2017

Abstract Soft-sediment deformation structures (SSDSs), which reflect sediment mobilization processes, are helpful to identify punctual events of paleoenvironmental stresses. In the upper Tithonian-Berriasian calpionellid pelagic limestone of the Lattimusa Fm. outcropping in the Barracu section (W Sicily), paleoenvironmental restoration reveals the occurrence of a deep-water flat basin, characterised by undeformed planar bedding, laterally passing to a gentle slope where the deformed horizons alternate with undeformed beds. Here, two types of gravity slides have been differentiated on the basis of different kinds of SSDSs, brittle deformation, involved lithofacies, geometry and morphology. T…

SSDSUpper Tithonian-erriasian pelagic carbonateDikeSettore GEO/02 - Geologia Stratigrafica E Sedimentologica010504 meteorology & atmospheric sciencesBeddingCarbonate platformStratigraphyW Sicily010502 geochemistry & geophysics01 natural sciencesTranslational glidePaleontologyContinental marginMarlExtensional tectonics0105 earth and related environmental sciencesgeographygeography.geographical_feature_categoryRotational slumpGeologySlump scars and listric normal faultSeafloor spreadingTectonicsSeismologyGeologySedimentary Geology
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Injection structures and load casts in lagoon sediments (Sārnate outcrop, W Latvia)

2018

SSDSliquefaction:NATURAL SCIENCES::Earth sciences::Exogenous earth sciences::Sedimentology [Research Subject Categories]:NATURAL SCIENCES::Earth sciences::Exogenous earth sciences::Quaternary geology [Research Subject Categories]palaeoseismic event
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Sequential window acquisition of all theoretical fragments versus information dependent acquisition for suspected-screening of pharmaceuticals in sed…

2019

The aquatic ecosystems are dynamic environments often affected directly or indirectly by a myriad of anthropogenic contaminants that need to be properly identified. In this study, liquid chromatography-quadrupole time-of-flight mass spectrometry (LC-QqTOF-MS) suspected-screening was applied to mussels and riverine sediment both, non-spiked and spiked with a mixture of 32 pharmaceuticals. Three data acquisition methods –sequential window acquisition of all theoretical fragment-ion spectra (SWATH), in fix (FSWATH) and variable (VSWATH) window modes and Information Dependent Acquisition (IDA)– were compared to determine the most suitable acquisition technique. The results obtained in the spike…

SWATHGeologic SedimentsFix windowIbuprofen010402 general chemistryMass spectrometry01 natural sciencesBiochemistryAnalytical ChemistryData acquisitionTandem Mass SpectrometryAnimalsUltra high pressurePesticidesQuadrupole time of flightChromatography High Pressure LiquidAcetaminophenPollutantChromatographyChemistry010401 analytical chemistryOrganic ChemistryReproducibility of ResultsSedimentGeneral MedicineMusselContamination0104 chemical sciencesMusselSedimentPharmaceutical PreparationsIDAVariable windowWater Pollutants ChemicalEnvironmental Monitoring
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Sedimentary and diagenetic markers of the restriction in a marine basin: the Lorca Basin (SE Spain) during the Messinian

1998

Abstract The Lorca Basin (southeastern Spain) is part of a chain of small marginal Neogene basins located in the structurally active Betic area. The Upper Miocene (Messinian) sequence is composed of a thick diatomite-bearing series (Tripoli Unit) overlain by the Main Evaporites, analogous to the classical succession that records the main events during the Salinity Crisis in the Mediterranean region. The shallow restricted conditions of this region amplified the sedimentary responses to local and global forcings. An integrated approach using sedimentology, micropalaeontology, stable isotope geochemistry and organic geochemistry has been applied to the Tortonian/Messinian succession of the Lo…

Sabkhageographygeography.geographical_feature_categoryEvaporiteStratigraphyGeologyStructural basinNeogeneDiagenesisPaleontologyOrganic geochemistrySedimentary rockSedimentologyGeologySedimentary Geology
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