How does burial of sediment promote diagenesis as sediment converts to rock?
A. Burial subjects the sediment to increased fluids not available at the surface of the Earth.
Burial subjects the sediment to increasingly higher temperatures and pressures.
C. Burial causes sediment to partially melt and dissolve.
D. Burial causes a sediment pile to increase spaces between grains, allowing more water to flow through it.
查看答案
Which of these sedimentary rocks would most likely form in the deepest water?
A. breccia
B. sandstone
C. limestone
D. conglomerate
Desert floods arrive suddenly and subside quickly.
Running water, although infrequent, nevertheless does most of the erosional work in deserts.
Middle-latitude deserts and steppes are more extensive in the Northern Hemisphere than in the Southern Hemisphere.