Northern Baffin Bay sediment core evidence for Boothia-Lancaster Ice stream retreat from Last Glacial Maximum extent and for its role in the origin of Baffin Bay Detrital Carbonate (BBDC) Events 0, 1 and 2 (2019-2024)

This dataset is an update and extension of data lodged at this site under doi:10.18739/A2GM81Q31 and stemming from Kelleher et al., 2022 published in Arctic, Antarctic and Alpine Research, vol. 54, no 1, p. 395-347, doi.org/10.1080/15230430.2022.2110689. This updated data include new age models, additional foraminiferal assemblage data, and new X-Ray fluorescense (XRF) data on the 3 sediment cores. The goal of the continued research is to document the retreat history of the trunk ice stream in Lancaster Sound, the Boothia-Lancaster ice stream (BLIS) and to relate this Last Glacial Maximum (LGM) to Holocene history with deposition of the Baffin Bay Detrital Carbonate (BBDC) events. The new foraminiferal data are used to constrain the paleoenvironments, and with new radiocarbon dates we have new understanding of the lithofacies which have unified the age models and the origin of BBDC events in cores throughout Baffin Bay (Jennings et al., 2025). The dataset also includes Inductively Coupled Plasma Mass Spectrometry (ICP-MS) trace metal data on N. pachyderma exploring geochemical evidence of inflow of Pacific-sourced Arctic Surface Water as Parry Channel and Nares Strait opened by deglaciation, a manuscript in preparation by Marchitto and others on the same set of sediment cores.