Discovery
Shocked quartz was discovered after underground nuclear bomb testing, which caused the intense pressures required to form shocked quartz. Eugene Shoemaker showed that shocked quartz is also found inside craters created by meteor impact, such as the Barringer Crater and Chicxulub crater. The presence of shocked quartz proves that these craters were formed by an impact: a volcano would not generate the pressure required.
Read more about this topic: Shocked Quartz
Famous quotes containing the word discovery:
“As the mother of a son, I do not accept that alienation from me is necessary for his discovery of himself. As a woman, I will not cooperate in demeaning womanly things so that he can be proud to be a man. I like to think the women in my son’s future are counting on me.”
—Letty Cottin Pogrebin (20th century)
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“The gain is not the having of children; it is the discovery of love and how to be loving.”
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