Paleo Home Research Data Education What's New Features Paleo Perspectives Site Map Mirror Sites National Climatic Data Center, Asheville, North Carolina navigation bar
Paleo Slide Set: Polar Ice Cores
Calcium Concentrations
While ECM data can provide many important insights regarding past climate, 41 other analyses provide even more compelling paleoclimatological data. Calcium concentrations, like ECM, serve as a proxy measurement of dust flux onto the ice sheet. Glacial periods are marked by high calcium concentrations, while warmer periods are notable for very low calcium concentrations. As you can see from this slide and the previous one, the climatic regime underwent extremely rapid transitions during the period from 18,000 to 10,000 yr B. P.

Photo Credits:
Graphic by Thomas Andrews. Data from Paul Mayewski and others.
University of New Hampshire.
Click to View Larger Image
Click on above image to enlarge.

Download a zip file
of a full resolution TIF image

Back to Slide Sets.....

Contact Us
Last Modified: 12 October 2001

Paleoclimatology Program Home Page