Geology MTII Study Guide

Geology MTII Study Guide - Exam Question of the Day/Lab...

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Exam Question of the Day/Lab Quiz Compilation In an anticline, the youngest rocks are in the middle of the fold. False Strike is the line formed by the intersection of a horizontal plane and an inclined layer of rock. True Deformation is all the changes in shape, position, and volume of a rock body. True Which of the following is not a weathering process? a) Dissolution of limestone by rain b) Hydrolysis of feldspar to clay c) Downcutting by rivers d) Frost wedging e) Exfoliation Metamorphic rocks are formed by transformation of preexisting rocks by melting and recrystalization under high pressures and temperatures. False Metamorphic rocks are formed by transformation of preexisting rocks in the solid state under high pressures and temperatures. True A fault in which the hanging wall moves down relative to the foot wall is calle d a a) Normal fault b) Reverse fault c) Strike-slip fault d) None of the above Marble is a metamorphic rock formed by metamorphism of sandstone. False, limestone From relative dating of 3 geologic formations, it is impossible to tell which one is the oldest. False The dip of a layer of rocks is defined as a) The angle between that layer and the vertical plane b) The angle between that layer and the magnetic north pole c) The angle between that layer and the horizontal plane d) None of the above e) All of the above Metamorphic recrystallization is the process by which crystals of one mineral slowly convert to fewer larger crystals of the same mineral. True An earthquake occurs when slow tectonic deformation causes a fault to reach its breaking strength and slip suddenly occurs across the fault surface. True Which of the following describe the eon and era in which humans have lived? Phanerozoic, Cenozoic. Horizontal line on an inclined sedimentary layer is called the: strike
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The principle of original horizontality state under the influence of gravity, volcanic rocks were originally deposited in near horizontal positions. False, sedimentary rocks Tensile fractures never occur in nature. False The time span between Earth’s origin and Cambrian explosion of life was much longer than the Phanerozoic eon that followed. True After 3 half-lives, a radioactive isotope will have decayed to 12.5% of its original amount. True Most orogenic episodes result from a) Seafloor spreading b) Continental rifting c) Plate convergence d) Strike-slip faulting The deposition of banded iron formations in the Archean provides evidence of early photosynthesis. True Elastic rebound theory states that, during an earthquake: Some of the potential energy stored by elastic deformation of the crust near a fault is released as kinetic energy. Geology Midterm II Study Guide Orogeny- mountain making -found at ocean-continent convergence zones -accompanies volcanism, built by folding and faulting Fracture Tensile- open out Shear- slip along fracture surface -faults are a type of shear fracture Joint- fracture surfaces along which there has been no significant movement
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This note was uploaded on 04/14/2009 for the course GEOL 105Lg taught by Professor Davis,platt during the Spring '07 term at USC.

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Geology MTII Study Guide - Exam Question of the Day/Lab...

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