California crater may be meteor site
From Times Staff and Wire Reports
A rock the size of three football fields may have crashed into the California landscape more than 35 million years ago, creating a 3.4-mile-wide crater west of Stockton, San Diego State University researchers reported this month at the Lunar and Planetary Science Conference in Houston. The impact would have created a 1,500-megaton explosion. The impact has not been confirmed, but the geological feature a mile below sea level is circular and contains shocked quartz grains characteristic of meteor impacts.
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