Search results for "oceanic anoxicevent"

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Carbon-isotope records of the Early Jurassic (Toarcian) Oceanix Anixic Event from the Valdorbia (Umbria-Marche Apennines) and Monte Mangart (Julian A…

2009

The Toarcian oceanic anoxic event (ca 183 Ma) coincides with a global perturbation marked by enhanced organic carbon burial and a general decrease in calcium carbonate production, probably triggered by changes in the composition of marine plankton and elevated carbon dioxide levels in the atmosphere. This study is based on high-resolution sampling of two stratigraphic successions, located in Valdorbia (Umbria-Marche Apennines) and Monte Mangart (Julian Alps), Italy, which represent expressions of the Toarcian oceanic anoxic event in deep-water pelagic sediments. These successions are characterized by the occurrence of black shales showing relatively low total organic carbon concentrations (…

010506 paleontologystratigraphic correlationStratigraphy[SDU.STU]Sciences of the Universe [physics]/Earth SciencesBiostratigraphy010502 geochemistry & geophysics01 natural sciencesPaleontologyCarbon isotopes cyclostratigraphy Early Jurassic oceanic anoxic event stratigraphic correlation.oceanic anoxic event14. Life underwateroceanic anoxiceventComputingMilieux_MISCELLANEOUS0105 earth and related environmental sciencesCarbon isotopes; cyclostratigraphy; Early Jurassic; oceanic anoxic event; stratigraphic correlationCarbon isotopes; cyclostratigraphy; Early Jurassic; oceanic anoxicevent; stratigraphic correlation.AmmoniteCarbon dioxide in Earth's atmosphereEarly JurassicCarbon isotopesGeologyPelagic sedimentCyclostratigraphyAnoxic waterslanguage.human_languageSettore GEO/08 - Geochimica E Vulcanologia13. Climate actionIsotopes of carbonlanguageSedimentary rockcyclostratigraphyGeology
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