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

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...

Full description

Bibliographic Details
Main Authors: McArthur, J M, Rio, Domenico, Massari, F, Castradori, Davide, Bailey, Trevor R, Thirlwall, Matthew F, Houghton, Simon D
Format: Article in Journal/Newspaper
Language:English
Published: PANGAEA - Data Publisher for Earth & Environmental Science 2006
Subjects:
Composite Core
Outcrop sample
Leg121
Joides Resolution
Ocean Drilling Program ODP
Antarctic
Antarctic Peninsula
Indian
McArthur
Cockburn
Cockburn Island
Antarc*
Antarctica
Planktonic foraminifera
Online Access:https://dx.doi.org/10.1594/pangaea.693929
https://doi.pangaea.de/10.1594/PANGAEA.693929
Description
Summary: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.

Similar Items