Mafic Study guides, Class notes & Summaries

What are the two different kinds of crust? - Answer-Oceanic and Continental Which crust is denser? - Answer-Oceanic Which crust is thicker? - Answer-Continental What specific type of rock is each type of crust made of? - Answer-Continental-granite Oceanic-basalt What layer contains the crust and the upper mantle? - Answer-Lithosphere What is unusual about the Asthenosphere? - Answer-It is partially melted What happens when 2 oceanic plates collide? - Answer-The denser of the 2 plates will...

Geomorphology correct answers study of the shape of the Earth's features and how they change over time Present era of timescale correct answers Cenozoic era Radiometric dating correct answers rate of radioactive decay of rock elements to determine the age of rocks Timescale for geologic change correct answers history of the Earth since its formation as spanning a single 24 hour day, long time frame, relatively short period of evolving life forms Endogenic correct answers internal pr...

LUOA Earth Science Module 2 (2023/2024) Rated A Copper is generally used for electrical wiring All rocks are made of minerals We all use minerals every day. We brush our teeth with toothpaste containing ____________, an abrasive powder that scrubs our teeth. We take a shower, get out and maybe put __________ powder on us. We turn on the light switch that has wires made of ___________. calcite, talcum, copper Why is oil not a mineral? (Choose 2) because it is a liquid, because it is made of li...

The oldest minerals on earth are about 4 billion years old. The accepted age of earth (4.56 Ga) is based on the - correct answer -the age of meteorites which are thought to have formed at the same time as the earth Which of the following is true of lithospheric plates on earth - correct answer -Lithospheric plates consist of upper mantle and crust Plates can join together and break apart The move at a rate of 3-10 cm a year The ______________ of the crust differs from that of the mantle ...

UCLA eps SCI 1 final Exam Questions and answers, rated A+ Calculate the amount of time a transform fault takes to slip a given amount, given its slip rate. - - distance between LA and SF: about 500 km slip rate of San Andreas fault: about 20 mm/yr (1 km = 1000 m; 1 m = 1000 mm)Dodgers/Giants rivalry will be a cross-town one once again in....? 25,000,000 years (25 million years)(1 year1000mm1000m500km)/(20mm1m*1km) used dimensional analysis since we can't use a calculator on the midte...

Geomorphology study of the shape of the Earth's features and how they change over time Present era of timescale Cenozoic era Radiometric dating rate of radioactive decay of rock elements to determine the age of rocks Timescale for geologic change history of the Earth since its formation as spanning a single 24 hour day, long time frame, relatively short period of evolving life forms Endogenic internal processes such as volcanic and tectonic activity Exo...

ESS 101 INTRO TO GEOLOGY - University of Washington _ Laboratory 4: Volcanoes, Plutons, and IgneousRocks. Fall 2022. Score for this attempt: 11.9 out of 15. Igneous rocks form when magma cools, either slowly underground or rapidly at earth’s surface (i.e. near volcanoes). Magma cooling processes affect the size of crystals in igneous rocks. Bigger crystals form in slow-cooling, underground magma chambers, and smaller crystals form in fast-cooling lava flows/eruptions. To recognize eight common...

Subduction A geological process in which one edge of a crustal plate is forced downward into the mantle below another plate and melted Asthenosphere The lower part of the mantle Lithosphere The upper part of the mantle and the crust Atmosphere The air and area that is above the crust and below space Core The extremely hot, solid, and dense center of the earth, which is believed to be composed of iron and nickel Mantle Between the core and the crust, liqui...

Catastrophism theory that all surface features were due to intermittent catastrophes Uniformitarianism theory that the changes in the earth's crust during gelogical history have resulted from the action of continous and uniform processes Pangea the original supercontinent Laurasia then nortern continent after pangea Gondwanaland the southern continent after Pangea geological evidence rock units on different continents with similar structure style fossil evidence fossils found on th...

Age of Earth 4.6 billion years Seismometer Instrument used to measure horizontal or vertical motion during an earthquake. Uniformitarianism The past geological events can be explained by forces occurring today Alfred Wegener A German scientist who proposed the theroy of continental drift Geologic evidence of continental drift -rock units on different continents have similar structure Mid Ocean Ridges -submerged mountain regions -longest continuous feature of the earths crust -tensio...