Benthic foraminiferal stable isotope data are presented for Sites 1014 (Tanner Basin, 1176 m) and 1020 (Gorda Ridge, 3040 m) to constrain past changes in Pacific deep- and intermediate-water nutrient chemistry associated with the onset of large-amplitude 100-k.y. climate cycles after ~900 ka. The Site 1014 data were based on analyses of separate species of Cibicidoides, whereas only Cibicidoides wuellerstorfi was used to generate the Site 1020 record. The present data span 380-920 and 620-950 ka at Sites 1014 and 1020, respectively.
1Lyle, M., Koizumi, I., Richter, C., and Moore, T.C., Jr. (Eds.), 2000. Proc. ODP, Sci. Results,167 [Online]. Available from World Wide Web: <http://www-odp.tamu.edu/publications/167_SR/167sr.htm>. [Cited YYYY-MM-DD]
2Lamont-Doherty Earth Observatory, Columbia University, Palisades NY 10964, USA. Correspondence author: peter@ldeo.columbia.edu
Date of
initial receipt: 16 November 1998
Date of acceptance: 4 October 1999
Ms 167SR-202