(Table 1) Nd and Sr isotopic compositions and isotope dilution trace element concentrations of sediment core JM96-1216 ...

• Main Authors: Verplanck, Emily P, Farmer, G Lang, Andrews, John T, Dunhill, Gita, Millo, Christian
• Format: Dataset
• Language: English
• Published: PANGAEA 2009
• Subjects: DEPTH, sediment/rock; Sample comment; Size fraction; Rubidium; Strontium; Rubidium-87/Strontium-86 ratio; Strontium-87/Strontium-86 ratio; Strontium-87/Strontium-86 ratio, error; Samarium; Neodymium; Samarium-147/Neodymium-144 ratio; Neodymium-143/Neodymium-144 ratio; Neodymium-143/Neodymium-144 ratio, error; ε-Neodymium; Geological age; Gravity corer; Mass spectrometer Finnigan MAT 6-collector solid source; JM96; Jan Mayen
• Online Access: https://dx.doi.org/10.1594/pangaea.730182; https://doi.pangaea.de/10.1594/PANGAEA.730182

Isotope dilution concentration determinations are accurate to approx. 1% for Rb and Sr, and 0.5% for Sm and Nd. Total procedural blanks averaged apporx. 1 ng for Sr and 100 pg for Nd, during the study period. Measured 87Sr/86Sr ratios were analyzed using four-collector static mode measurements. Thirty measurements of SRM-987 during the study period yielded mean 87Sr/86Sr=0.71032±2. Measured 143Nd/144Nd normalized to 146Nd/144Nd=0.7219. Analyses were dynamic mode, three-collector measurements. Thirty three measurements of the La Jolla Nd standard during the study period yielded a mean 143Nd/144Nd=0.511838±8 (2sigma mean). e-Nd values are calculated using a present-day 143Nd/144Nd (CHUR)=0.512638. ...