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Article: SCIENTISTS FINDING EVIDENCE OF `SNOWBALL EARTH'.(L.A. Life)
- Article from:
- Daily News (Los Angeles, CA)
- Article date:
- April 13, 1997
CopyrightCOPYRIGHT 1997 Daily News. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Byline: Alexandra Witze Knight-Ridder Tribune News Wire
If you think Texas can have some cold snaps in the spring, be glad you weren't living 2.2 billion years ago.
That's when glaciers crept within 11 degrees of the equator, to about the latitude of the modern border between Costa Rica and Nicaragua, new research suggests.
Scientists don't yet know what caused such an incredible cold spell, but they've already nicknamed it ``Snowball Earth.''
Researchers reached this conclusion after studying volcanic rocks from South Africa. Billions of years ago, when these rocks formed, they lay within 11 degrees of the equator; they've since moved ...