Search results for "last deglaciation"

showing 2 items of 2 documents

Emiliania huxleyi calcite mass variability during periods of atmospheric CO2 rising in the Mediterranean Sea

2013

CoccolithophoreLast DeglaciationCO2 variability
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HIGH-RESOLUTION PALAEONVIRONMENTAL RECONSTRUCTION OF ODP HOLE 963D (SICILY CHANNEL) DURING THE LAST DEGLACIATION BASED ON CALCAREOUS NANNOFOSSILS

2004

Abstract A palaeoenvironmental reconstruction of Ocean Drilling Program (ODP) Hole 963D (Sicily Channel) has been obtained on the basis of quantitative abundance fluctuations in the calcareous nannofossil assemblages. The studied hole is characterized by a very high sedimentary resolution and covers the last ca. 20 kyr. A new palaeoclimatic curve, based on the Gephyrocapsa muellerae/Upper Photic Zone (UPZ) group ratio, permitted the detection of the rapid climatic fluctuations that characterized the last deglaciation. Cold water masses occupied the Sicily Channel during the glacial period and the Younger Dryas, whereas they were generally warm during the Bolling–Allerod and the Holocene. An…

Water masspalaeoenvironmental reconstructionCentral Mediterranean SeaPaleontologyStratification (water)OceanographyPaleontologyWater columnOceanographycalcareous nannofossilFlorisphaera profundaDeglaciationPhotic zoneGlacial periodYounger Dryaslast deglaciationpalaeoclimatic curveGeologyHolocene
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