Transcript Geology
Geology Test # 1 Forces that shape Earth’s surface by building up mountains and landmasses are called___________ • Constructive forces • A ball of dense solid metal composed primarily of nickel and iron is the Earth’s____________ • inner core • The place where two plates come together is known as a • Convergent boundaries • When Two continental boundaries collide a ______________ is formed • Mountain • If you were to study Geology in college you could become a __________ • Geologist • In a transform boundary plates__________________________ • Slip by one another • ______________is the term used to describe the sea floor sinking into ocean trenches. • Subduction • What is the name of the technology that used sound waves to map the ocean floor? • Sonar • The name of the Super Continent • Pangaea • Wegner’s theory that the continents have drifted apart is known as • Theory of Continental Drift • Sea floor spreading occurs along a ____________ boundary • Divergent • Example :Mid Oceanic Ridge • Forces that wear down land masses are called____________forces • Destructive forces • The outer layer of earth is called the ________ • crust • Continental crust is composed mainly of___________ • Granite • Oceanic crust is composed mainly of_______ • Basalt • The Cascade Mountain range occur along a __________________boundary • Continental/Oceanic convergent boundary • The lithosphere (plates) float on top of the _________________ • Aesthenosphere • San Andreas fault is an example of a ______________________boundary • Transform • Plates slip by one another • Temperature and pressure ________ as you go deeper into the Earth • increase • In this type of boundary the older denser oceanic crust dives below the oceanic crust, heats up, and melts -- finds a weak spot in the crust resulting in a volcano. • Oceanic/Oceanic continental crust • Example Japan • In this type of boundary the older dense oceanic crust dives below the continental crust. The oceanic crust will melt and push up through a weak spot in the continental crust form a volcano. • Continental/oceanic convergent boundary • Example-Cascade Mountains