A review of New Zealand palaeoclimate from the Last Interglacial to the global Last Glacial Maximum

摘要

Results from terrestrial and marine palaeoclimate proxies are integrated to reconstruct palaeoclimate variations in New Zealand from the Last Interglacial to the global Last Glacial Maximum (gLGM). By combining data from 21 speleothems we have constructed composite O-C stable isotope sequences from 0 to 88.5 ka BP and from 107.8 to 128.2 ka BP. The gaps in the sequence (a 193 ka break in coverage in MIS 5b/c and a 2.97 ka gap in MIS 5a) preclude the construct of a continuous record; so data were referenced to a common scale by normalising individual records (subtracting means and dividing by standard deviation). Overlapping records were then merged chronologically. These records were compared to integrated summer insolation for 45 degrees S and to terrestrial and marine environmental proxies available for the New Zealand region.