Pliocene records of marine- 87Sr/86Sr ratios from Sicily and the eastern Indian Ocean

doi:doi:10.1594/PANGAEA.693929

Pliocene records of marine- 87Sr/86Sr ratios from Sicily and the eastern Indian Ocean

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.

BibTex:

@dataset{McArthur_J_M_and_Rio_Domenico_and_Massari_F_and_Castradori_Davide_and_Bailey_Trevor_R_and_Thirlwall_Matthew_F_and_Houghton_Simon_D_2006,
    abstract = {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.},
    author = {McArthur, J M and Rio, Domenico and Massari, F and Castradori, Davide and Bailey, Trevor R and Thirlwall, Matthew F and Houghton, Simon D},
    doi = {10.1594/PANGAEA.693929},
    institution = {PANGAEA (Land Surface)},
    title = {Pliocene records of marine- 87Sr/86Sr ratios from Sicily and the eastern Indian Ocean},
    url = {https://service.tib.eu/ldmservice/vdataset/png-doi-10-1594-pangaea-693929},
    year = {2006}
}