Why do geologists study sandstones under the microscope? (See Figs. 5.8 and 5.9.)
Answer to relevant QuestionsWhat are the main cations (positively charged ions) and anions (negatively charged ions) in seawater?Why do boulders, cobbles, and pebbles round with only a few kilometers of transport whereas sand is difficult to round and silt hardly ever becomes rounded?How are sedimentary rocks classified into types?How do Clastic sedimentary rocks reveal clues to the climate in the source area from which the sediment was derived?It has been stated that sediment is moved downhill from the site of weathering by running water (ice), or other agents of transportation, under the influence of gravity. Is there an exception to this “downhill” rule?
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