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Unformatted text preview: to be poorly sorted. 6.) When magnesium replaces some of the calcium in calcite, limestone is converted to dolostone. 7.) Assuming that all the following are in ancient rocks, which one is not a fossil? Salt crystal 8.) Traps for petroleum and natural gas formed by deformation such as folding and fracturing of rocks known as structural traps. 9.) Rock salt and rock gypsum are the most common evaporate rocks....
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- Spring '08
- Geology, lithification, nearshore deposits results, markedly different sixes, common evaporate rocks