2 documents found, page 1 of 1
Radiocarbon age offsets between two surface dwelling planktonic foraminifera sp...
Ausín, Blanca; Haghipour, Negar; Wacker, Lukas; Voelker, Antje; Hodell, David; Magill, Clayton; Looser, Nathan; Bernasconi, Stefano M.This study identifies temporal biases in the radiocarbon ages of the planktonic foraminifera species Globigerina bulloides and Globigerinoides ruber (white) in a sediment core from the SW Iberian margin (so‐called Shackleton site). Leaching of the outer shell and measurement of the radiocarbon content of both the leachate and leached sample enabled us to identify surface contamination of the tests and its impac...
Spatial and temporal variability in coccolithophore abundance and distribution ...
Ausin, Blanca; Zuniga, Diana; Flores, Jose A.; Cavaleiro, Catarina; Frojan, Maria; Villacieros-Robineau, Nicolas; Alonso-Perez, Fernando; Arbones, BelenA systematic investigation of the spatial and temporal variability in coccolithophore abundance and distribution through the water column of the NW Iberian coastal up-welling system was performed. From July 2011 to June 2012, monthly sampling at various water depths was conducted at two parallel stations located at 42 degrees N. Total coccosphere abundance was higher at the outer-shelf station, where warmer, nu...