Foraminiferal paleoceanography

Collaborators have been: George Scott (GNS, Lower Hutt); Martin Crundwell (GNS, Lower Hutt); Helen Neil and Helen Bostock (NIWA, Wellington); Jim Kennett (California); Lionel Carter (Victoria University, Wellington); Silke Steph, Ralf Tiederman (Germany)

This programme evolved out of Bruce Hayward's participation on Ocean Drilling Programme Leg 181, which drilled six sites off south-eastern New Zealand in 1998. It focussed on the use of benthic and planktic foraminifera to reconstruct the Pliocene and Pleistocene paleoceanography on either side of the Subtropical Front, east of New Zealand. In 2008-2010 we produced an SST record for the last 1 myrs from off the West Coast of the South Island of New Zealand for comparison with the East Coast record. These studies have included five MSc theses on the planktic foraminifera and their consequent sea surface temperature record (MAT estimates) for the mid Pliocene and mid to late Pleistocene in ODP 1125 and the mid-late Pleistocene of DSDP 594, ODP 1119 and MD06-2986 (West Coast). The east-west synthesis was published in 2012. In 2012-2015 the research moved to investigations of the history of the STF south of New Zealand (led by Helen Bostock), the history of carbonate dissolution around New Zealand (led by Helen Bostock) and the Southwest Pacific SST record of MIS 5e, 7, 11 (led by Guiseppe Cortese, Lionel Carter, Gavin Dunbar and others). All these studies are now published or in press.