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Science · Earth sciences
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1. Which of the following statements is TRUE? Horizontal layers in sedimentary rocks are called beds. Evaporites (e.g., rock salt) have a purely biological origin. Shale is a coarse-grained rock. A clastic sedimentary rock is one that forms from the precipitation of calcite from seawater
2. Which of the following is MOST likely to trigger a rapid mass wasting process? a large earthquake decrease in moisture content reduction of mass at the top of the slope addition of mass at the base of the slope
3. A flat surface next to a river that is periodically inundated by flood ater is called a(n) channel cutbank oxbow lake floodplain
4. Based on the cross-sectional view of ripple marks given below, what was the dominant water flow direction(s)? back and forth left to right right to left none of the above
5. An arch-shaped structure of deformed sedimentary rocks is called a(n) anticline syncline mountain fault
6.
In Yosemite National Park in July 1996, a 162,000-ton mass of granite pulled away from a canyon wall and fell 1,640 ft through the air, reaching a speed of 270 mph, before hitting the valley floor. This event would best be classified as a mudflow rock slide rock fall debris avalanche
7.
Rock fabrics in metamorphic rocks (e.g., foliation, slaty cleavage, schistocity) are produced by the alignment of platy minerals (i.e., muscovite or biotite) during sqeezing or shearing of the rock contact metamorphism at shallow depths in the crust during deposition, compaction, and lithification of sediment recrystallization of equal-shaped minerals (ie. quartz or calcite)
8.
Which of the following rock deformation structures are formed in a region affected by tensional tectonic forces? strike-slip faults synclines normal faults thrust faults
9.
Clastic sediment that is very coarse (boulder-size), has angular grains, and is very poorly sorted has traveled very far from its source area is commonly transported by air is most likely to be deposited in the deep ocean has not traveled very far from its source area
10.
What type of forces dominant at convergent plate boundaries? shearing forces compressional forces tensional forces
11.
The correct sequence in the formation of a sedimentary rock is: burial, eruption, transportation, reef growth cementation, crystallization, deposition, weathering diagenesis, deposition, weathering, transportation weathering, transportation, deposition, lithification
12.
Which of the following is a good index mineral (P-T sensitive) in some metamorphic rocks? halite garnet feldspar quartz
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