Unknown
PANGAEA
In:
Supplement to: McArthur, J M; Rio, Domenico; Massari, F; Castradori, Davide; Bailey, Trevor R; Thirlwall, Matthew F; Houghton, Simon D (2006): A revised Pliocene record for marine-87Sr/86Sr used to date an interglacial event recorded in the Cockburn Island Formation, Antarctic Peninsula. Palaeogeography, Palaeoclimatology, Palaeoecology, 242(1-2), 126-136, https://doi.org/10.1016/j.palaeo.2006.06.004
Publication Date:
2024-01-09
Description:
We present a revised 87Sr/86Sr-curve for marine-Sr in the interval 2.5-4.5 Ma using analysis of Orbulina universa from the Middle Pliocene type section in Sicily (Punta Piccola section) and a mixed assemblage of planktonic foraminifera from ODP Site 758A and B. The new calibration is used, together with new 87Sr/86Sr analysis of pectenid calcite from Cockburn Island, Antarctica, to confirm an age of 4.7 Ma for the pectenids of the Cockburn Island Formation (formerly the Pecten Conglomerate), a unit important in marking a period of warmth and possible glacial retreat in Antarctica. Finally, to aid interlaboratory comparison of 87Sr/86Sr data, we calibrate a value of 0.709174 for EN-1 against a value of NIST 987 of 0.709248.
Keywords:
121-758; Capo_Rossello; COMPCORE; Composite Core; Indian Ocean; Italy; Joides Resolution; Leg121; Ocean Drilling Program; ODP; OUTCROP; Outcrop sample
Type:
Dataset
Format:
application/zip, 2 datasets
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