final_v3

final_v3 - SIO 10 Final Exam, Wednesday Mar. 18 2009...

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SIO 10 Final Exam, Wednesday Mar. 18 2009 VERSION MARCH 1) The grain size of an igneous rock is determined primarily by_______? a) its mineral composition b) its volatile content c) its pressure during formation d) how rapidly it cooled during crystallization 2) Hotspot volcanism occurs at _____ a) Yellowstone and Hawaii b) Mt. Kilimanjaro and Mt. Vesuvius c) Mt. St. Helens and Mt. Shasta 3) How do sedimentary rocks form? a) in Earth’s interior, just before volcanic eruptions b) when a rock is squeezed and heated c) deposition and compaction of eroded and transported material d) freezing from melt 4) What is a conglomerate? a) large clasts cemented together b) a type of limestone c) a certain type of fossil d) any sedimentary rock 5) Coal is what type of rock? a) igneous b) metamorphic c) sedimentary d) none of the above 6) Which two parameters are on the axes of a phase diagram? a) silica content and water b) temperature and pressure c) silica content and temperature d) viscosity and temperature 7) A buried body of shale is subjected to differential stress, causing clay minerals to realign and producing slate. This is an example of _____ a) diagenesis b) metamorphism c) erosion d) weathering
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8) Which of these are polymorphs of Carbon? a) diamond and quartz b) diamond and graphite c) quartz and graphite d) quartz and olivine 9) Saltation of sand involves _______. a) spherical grains rolling along the surface of dunes b) grains hopping into the air, traveling for a short distance, and returning to the ground c) grains being carried long distances (up to tens of kilometers) by strong gusts of wind d) the mixture of quartz sand with salt, which forms from the evaporation of rainwater 10) Which of these is the most abundant mineral class in Earth’s crust? a) carbonates b) halides c) sedimentary rocks d) silicates e) evaporates 11) Which are the three basic rock types? a) limestone, sandstone, travertine b) basalt, granite, gabbro c) evaporites, organic, inorganic d) sedimentary, igneous, metamorphic 12) The oldest basalts on the ocean floor are about _____ years old a) 50 thousand b) 4 billion c) 200 million d) 2.5 million 13) Which of these describe igneous rocks with different silica content? a) pahoehoe and a’a b) mafic and silicic c) lapilli and cinder d) intermediate and andesitic 14) We know the Earth’s outer core is liquid because a) it is the principal source of magma. b) a recent drill hole to the core provided the proof. c) the core does not transmit shear waves. d) of the refraction of seismic waves at the Moho.
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15) At a subduction zone, the downgoing plate a) is always made of oceanic lithosphere b) is always made of continental lithosphere c) can be made of either 16) Which are the two principal mechanisms that drive plate tectonics? a) bombardment and accretion
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This note was uploaded on 12/15/2009 for the course SIO 10 taught by Professor Hedlin,m during the Winter '08 term at UCSD.

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final_v3 - SIO 10 Final Exam, Wednesday Mar. 18 2009...

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