Deep drilling has taken place at two sites in Antarctica:
• Concordia Station, Dome C (coordinates 75°06’S; 123°21’E, 3233 m above sea level) Go to Website:
This site was chosen to obtain the longest undisturbed chronicle of environmental change, in order to characterise climate variability over several glacial cycles, and to study potential climate forcings and their relationship to events in other regions. Drilling was completed at this site in December 2004, reaching a drilling depth of 3270.2 m, 5 m above bedrock. The retrieved core will extend the record to an age estimated to be around 890 000 years old.