Slice of Stalagmite Core (image) University of Arizona Caption A slice of a stalagmite core before samples are taken from it. The creamy or yellow area upper half of the slice is the region that can be tested to reveal past climate. The reddish, pockmarked region on the bottom half of the slice is the cave-floor rubble the stalagmite started growing on. Credit Mari N. Jensen, University of Arizona College of Science. Usage Restrictions This photo, Slice of Stalagmite Core, may only be used to illustrate a story about the research described in the accompanying news release, Cave Reveals Southwest's Abrupt Climate Swings During Ice Age. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.