A multi-proxy record of IODP Site 341-U1417 ...

By means of a multiproxy data set combining biomarker (alkenones, n-alkanes), microfossil (diatoms) and sedimentological (ice rafted debris, XRF) data obtained from sediments from IODP Site U1417 in the Gulf of Alaska, we elucidate the paleoenvironmental setting in this area during the Mid Pleistoce...

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Bibliographic Details
Main Authors: Müller, Juliane, Romero, Oscar E, Cowan, Ellen A, McClymont, Erin L, Forwick, Matthias, Asahi, Hirofumi, März, Christian, Moy, Christopher M, Suto, Itsuki, Mix, Alan C, Stoner, Joseph S
Format: Article in Journal/Newspaper
Language:English
Published: PANGAEA 2021
Subjects:
Gulf of Alaska
Mid Pleistocene Transition
Integrated Ocean Drilling Program / International Ocean Discovery Program IODP
Ice Sheet
Alaska
Online Access:https://dx.doi.org/10.1594/pangaea.931243
https://doi.pangaea.de/10.1594/PANGAEA.931243
Description
Summary:By means of a multiproxy data set combining biomarker (alkenones, n-alkanes), microfossil (diatoms) and sedimentological (ice rafted debris, XRF) data obtained from sediments from IODP Site U1417 in the Gulf of Alaska, we elucidate the paleoenvironmental setting in this area during the Mid Pleistocene Transition. The data point to a stimulation of the marine primary productivity through the input of nutrients (e.g. iron) via aeolian dust and icebergs. These fertilization pulses were likely triggered by the dynamic behaviour of the Cordilleran Ice Sheet during the Pleistocene. ...

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