Abstract.
A 12-m-long core from the southern Sohm Abyssal Plain with 25 mud turbidites deposited during the past 40 ka is compared petrographically by X-ray diffraction analysis and spectrophotometry with possible source areas on the continental margin. Bathymetry and petrography show that no sediment is derived from the Northwest Atlantic Mid-Ocean Channel and most came across the Laurentian Fan. Resedimented Heinrich events are recognised and red mud turbidites from the Gulf of St. Lawrence correlate with peaks in ice-rafting of hematite-stained quartz in the north-east Atlantic Ocean, suggesting a common glaciological origin.
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Piper, D.J., Hundert, T. Provenance of distal Sohm Abyssal Plain sediments: history of supply from the Wisconsinan glaciation in eastern Canada. Geo-Mar Lett 22, 75–85 (2002). https://doi.org/10.1007/s00367-002-0101-2
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DOI: https://doi.org/10.1007/s00367-002-0101-2