Record Drilling Depth Struck in Greenland

• Main Authors: Mayewski, Paul Andrew, Twickler, M. S., Dibb, J. E., Wumkes, M., Klinck, J., Putscher, J. S., Taylor, K. C., Meese, D. A., Waddington, E. D., Alley, R. B., Grootes, P. M., Ram, M., Wahlen, M., Wilson, A. T.
• Format: Text
• Language: unknown
• Published: DigitalCommons@UMaine 1994
• Subjects: Glaciogeology; Geochemistry; Glaciochemistry; Glaciology; Cryology; Climate Change; Earth Sciences; Hydrology; Greenland; Greenland ice core; Greenland Ice core Project; Greenland Ice Sheet Project; GRIP; ice core; Ice Sheet
• Online Access: https://digitalcommons.library.umaine.edu/ers_facpub/251; https://digitalcommons.library.umaine.edu/cgi/viewcontent.cgi?article=1256&context=ers_facpub

On July 1, 1993, after 5 years of drilling, the Greenland Ice Sheet Project (GISP2) penetrated several meters of silty ice and reached bedrock at a depth of 3053.4 m. It then penetrated 1.5 m into the bedrock, producing the deepest ice core ever recovered (Figure 1). In July 1992, a nearby European ice coring effort, the Greenland Ice Core Project (GRIP), reached an ice depth of 3028.8 m, providing more than 250,000 years of record. Comparisons between these ice core records have already demonstrated the remarkable reproducibility of the upper ∼90% of the records unparalleled view of climatic and environmental change.