Analytical results of 19 amino acid analyses from Unit 3.1 of sediment core CRP-1 (Table 1)

• Main Authors: Hart, Charles P, Webb, Peter-Noel
• Format: Dataset
• Language: English
• Published: PANGAEA 1998
• Subjects: 16 km ENE Cape Roberts; Age; amino acid analysis; dated; dated material; Cape Roberts Project; Core wireline system; CRP; CRP-1; CWS; D-Alloisoleucine/L-Isoleucine ratio; standard deviation; Depth; bottom/max; sediment/rock; top/min; High Performance Liquid Chromatography (HPLC); off Cape Roberts; Ross Sea; Antarctica; Replicates; Sampling/drilling ice; Cape Roberts; Antarc*
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.54730; https://doi.org/10.1594/PANGAEA.54730

Amino acid-based geochronological analyses were carried out on fossil mollusc shell and foraminifera from Unit 3.1, Cape Roberts Project core CRP-1. Ratios of D-alloIsoleucine to L-Isoleucine (D/L) were measured from 19 fossil samples using cation exchange High Performance Liquid Chromatography (HPLC) methods. Preliminary interpretation of these results suggest that Unit 3.1 contains carbonate fossils having multiple ages. The interpreted ages have a bimodal distribution between ~220 Ka (Quaternary) and ~2.4 Ma (Pliocene). However, these results lack a comprehensive regional and taxonomic context for amino acid studies in Antarctica and therefore should be regarded as preliminary age estimates of fossil shell ages.