Outcomes of the 2004 OZ-INTIMATE Meeting, ANSTO, Lucas Heights, NSW, Australia

Abstract

The objectives of the inaugural OZ-INTIMATE meeting held at ANSTO in September 2004 were: (1) identify and prioritise Australian onshore and offshore reference records for the OIS 2/1 transition, and (2) promote ways to effect high-precision and dating of key Australian onshore and offshore records for the determination of a regional event stratigraphy. At the meeting there was unanimous agreement between the c. 26 attendee's that a poster be produced by the OZ-INTIMATE community for discussion at the Decenber meeting of AQUA. This poster deals with continuous proxy records spanning 30 ka to the late Holocene and contains the Northern Hemisphere chronostratigraphic zones (grey bars: 8.2ka Cold Event, Younger Dryas YD, Older Dryas OD) and Antarctic ice records of CO2 and the ACR (Antarctic Cold Reversal) for comparative purposes. Data has been contributed from workshop participants. The poster forms a template for an event stratigraphy-focussed outcome derived from key continuous proxy records spanning early Holocene to c. 30 ka. Fragmentary terrestrial records (i.e. glacial advance/retreat, tree-ring and coral data) have been incorporated where appropriate and quantitative estimates for key time periods (i.e. LGM SSTs) are also included. Development of an event stratigraphy for the OZ and NZ based records will be a longer term process that is the aim for presentation at the 2007 INQUA Cairns symposium, though an event stratigraphy should be developed well in-advance of the Cairns meeting. Show more