In 1992 byerlee tested whether these materials would

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In 1992 Byerlee tested whether these materials would produce friction (25) 10 to 15 kilometers below the Earth’s surface. Byerlee found that when clay samples were subjected to the thou- sands of atmospheres of pressure they would encounter deep inside the (30) Earth, they produced as much friction as was produced by other rock types. The harder rocks push against each other, the hotter they become; in other words, pressure itself, not only the (35) rocks’ properties, affects frictional heating. Geologists therefore won- dered whether the friction between the plates was being reduced by pockets of pressurized water within the fault that push the plates away from each other. -------------------------------------------------------------------------------- Q10: The passage suggests which of the following regarding Henyey’s findings about temperature in the San Andreas Fault? A. Scientists have yet to formulate a definitive explanation for Henyey’s findings. B. Recent research suggests that Henyey’s explanation for the findings should be modified. C. Henyey’s findings had to be recalculated in light of Byerlee’s 1992 experiment. D. Henyey’s findings provided support for an assumption long held by geologists. E. Scientists have been unable to duplicate Henyey’s findings using more recent experimental methods. Answer: -------------------------------------------------------------------------------- Q11: The passage is primarily concerned with 7
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-------------------------------------------------------------------------------- Q12: The passage mostly agree that Heney’s findings about temperature in the San Andreas Fault made the greatest contribution in that they A. revealed an error in previous measurements of temperature in the San Andreas Fault zone B. indicated the types of clay present in the rocks that form the San Andreas Fault C. established the superiority of a particular technique for evaluating data concerning friction in the San Andreas Fault D. suggested that geologists had inaccurately assumed that giant rock plates that meet at the San Andreas Fault generate heat through friction E. confirmed geologists’ assumptions about the amount of friction generated by common varieties of rocks, such as limestone and granite Answer: ------------------------------------------------------------------------------------------------------------
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