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Mississippi River discharge over the last similar to 560,000 years - Indications from X-ray fluorescence core-scanning ArchiMer
Kujau, Ariane; Nuernberg, Dirk; Zielhofer, Christoph; Bahr, Andre; Roehl, Ursula.
The long term history of terrigenous flux to the Gulf of Mexico via the Mississippi River is hardly known. We here present geochemical and sedimentological data to approximate the varying Mississippi River sediment influx into the northeastern Gulf of Mexico (GoM) over the last six glacial-interglacial cycles (MIS 1 to 14). Our study is based on the IMAGES sediment core MD02-2576 that was recovered from the DeSoto Canyon and is located similar to 200 km south to the recent Mississippi River delta and similar to 150 km east of the recent coastline of Florida. Concentrations of siliciclastic elements in bulk sediment samples were estimated from XRF scanning and calibrated by single bulk XRF-analyses. Elemental ratios of the sedimentary record correspond to...
Tipo: Text Palavras-chave: Mississippi sediment discharge; Mississippi flood dynamics; Gulf of Mexico; Glacial-interglacial cycles; XRF-scanning.
Ano: 2010 URL: https://archimer.ifremer.fr/doc/00230/34135/82666.pdf
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