Publication Date:
2023-12-20
Description:
The Agulhas Plateau composite (APcomp) is a stratigraphic framework made up of sediment core sites MD02-2588 (41 19.90'S, 25 49.7'E, 2907m) and IODP Site U1475 (41 25.6'S, 25 15.6'E, 2669m). Stable isotope measurements were performed on 2-3 Cibicidoides wuellerstorfi specimens (250-315μm size fraction) and made on a Thermo Finnigan MAT 253 mass spectrometer linked online to a Carbo Kiel carbonate preparation device at Cardiff University with long-term precision of ±0.05‰ for δ18O and ±0.021‰ for δ13C (±1σ). Results are calibrated to an internal laboratory standard (BCT63) and presented relative to the Vienna Pee Dee Belemnite scale. IRD is defined as detrital mineral grains (excluding volcanic ash) 〉150μm. IRD is normalized to sample weight (IRD concentration in #/g) and then multiplication by apparent bulk mass accumulation rate derived from estimates of dry bulk density and linear sedimentation rate.
Keywords:
Agulhas Plateau; Ice-rafted debris; mid-Pleistocene transition
Type:
Dataset
Format:
application/zip, 2 datasets
