Congresswoman Heather Wilson, First Congressional District of New Mexico
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| True or False—Ash from the volcanic eruption that created the Valles Caldera can be found as far away as Kansas? |
July 11, 2000 |
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| True!
The Valles Caldera—15 miles in diameter—was formed by at least two massive volcanic eruptions, the first 1.6 million years ago. The explosions spewed a column of ash into the air with a force that scientists estimate as 600 times that of Mt. St. Helens. Ash from these blows has been found in Kansas, Texas and Oklahoma and deposits have been measured as thick as two miles deep. |
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