Subduction Guías de estudio, Notas de estudios & Resúmenes

age of earth CORRECT ANSWER our understanding of radioactivity helps us accurately determine numerical dates for rocks that represent important events in earth's past. Earth is about 4.6 billion years old. Asthenosphere CORRECT ANSWER "weak sphere" 400km deep, small amount of melting, mechanically detached from lithosphere, which can move independently craton CORRECT ANSWER interior of a continent, oldest part density CORRECT ANSWER defined as mass per unit of volume, determines how ...

Part 1 of 4 - 46.0/ 52.0 Points Question 1 of 50 2.0/ 2.0 Points Where is the top of the asthenosphere closest to the earth’s surface?  A. Next to a subduction zone  B. Underneath a collision zone  C. In the center of continental plates (craton)  D. Underneath a transform fault  E. Underneath a mid-ocean ridge Question 2 of 50 2.0/ 2.0 Points James Hutton’s statement that “the present is the key to the past” (uniformitarianism) is demonstrated by ________....

origin of earth - Answer-• Supernova: death of a star (great explosion) • Supernova happened 4.6 bya, dust and gas flattens to a disk and spins faster due to gravity and solar nebula formed. • Solar Nebula: describes formation of Earth 4.5 bya • Nebula: gas cloud origin of oceans - Answer-• volcanic explosion, H2O condensed and rained down for thousands of years to create oceans • icy comets hitting earth (responsible for 1/2 of earths ocean water) origin of life - Answer-•...

Marine Biology, 11e (Castro) Chapter 1 The Science of Marine Biology 1) The Challenger expedition made collections of marine organisms: A) Around the world. B) In the Pacific Ocean only. C) In the Atlantic Ocean only. D) In the Mediterranean Sea only. E) In the North Sea only. Answer: A Section: 01.01 The Science of Marine Biology Topic: The History of Marine Biology Bloom's: 01. Remember 2) The first marine laboratory in the world was established in: A) Russia. B) England. C) France....

Mttc Integrated Science (Earth And Space Sciences) Elaborated Questions And Answers Theory of Plate Tectonics - CORRECT ANSWER-A theory stating that Earth's lithosphere is broken into huge plates that move and change in size over time - explains the process of continental drift - theory is a fusion on the theories of continental drift and seafloor spreading - continents are not floating on the ocean, rather they are rooted What are the 10 major plates of the Earth's lithosphere? - C...

superposition - The principle that any given rock layer is probably older than those above it and younger than those below it continental crust - Extends from surface of Earth down to 20-30 miles. Continental crust (granite) is less dense then ocean crust (basalt). oceanic crust - Extends down from the surface of the Earth to 7 miles. Crust is layered and very uniform. Composed of basalt. mantle - Contains most of Earth's mass. Composed of iron, magnesium, aluminum, and siliconoxygen comp...

big bang - -still energy left from explosion -discovered in 1960s -assumes earth came from material -Kant created most pop model of formation (planet accretion) nebula - beginning form of planets many bump into others and combine earths composition - -more dense material in center -heterogeneous (bc heat and dense elements melt and flow) -accretion -compression -radioactive decay 3 layers of earth - -based on composition -core, mantle, crust -metallic core sank to center lithospher...

Lahar CORRECT ANSWER mudflow originating from a volcanic slope, also called mass wasting events What is a geological example of both a hot spot AND divergent plate boundary location? CORRECT ANSWER Iceland Where is magma generated? CORRECT ANSWER Uppermost mantle Where is the greatest amount of magma created? CORRECT ANSWER At divergent plate boundaries. A lesser amount is formed at subduction zones. It can also be formed when crustal rocks melt. Geothermal Gradient CORRECT ANSWER Wh...

Science Olympiad Dynamic Planet Latest Version Graded A+ volcano a weak spot in the crust where magma has come through the surface magma the molten mixture of rock-forming substances, gases and water from the mantle lava liquid magma that reaches Earth's surface Ring of Fire a major belt of volcanoes that rims the Pacific Ocean island arc a string of volcanoes that form as a result of subduction of one oceanic plate beneath a second oceanic plate hot spot an area where mag...

Geology 100 Exam - Kansas State University D. All of the above - answer(Ch. 10) What are some uses of magnetic reversals? A. Matching the patterns of reversals in a rock sequence to the magnetic time scale B. Studying magnetic stripes on the seafloor C. Calculating rates of seafloor spreading D. All of the above E. A and B only E. Both A and B - answer(Ch. 10) Why are the patterns showing the age of the seafloor symmetrical in the Atlantic Ocean but not the Pacific Ocean? A. Spreading...