Subduction Study guides, Class notes & Summaries

Mttc Integrated Science Secondary (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 lithos...

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 ...

This resource is a set of revision notes on the CCEA GCSE topic of earth’s structure and rocks. It includes subtopics such as structure of earth, crust, rocks in Northern ireland, igneous rocks, sedimentary rocks, metamorphic rocks, plate tectonics theory, constructive plate boundaries, mid-ocean ridge, destructive plate boundaries, ocean trench and subduction zone, collision zone, fold mountains, conservative plate boundary, earthquakes, liquefaction, tsunamis, shield volcanoes, composite vol...

Diamonds were delivered to the earth's surface as recently as A. 20 billion years ago. B. 20 million years ago. C. 1 million years ago. D. 10,000 years ago. - Answer-B. 20 million years ago. The three main components of the earth are the crust, mantle, and A. core. B. center. C. stratosphere. D. subduction zone. - Answer-A. core. How far beneath the earth's surface do diamonds form? A. 15 to 30 miles (25 to 50 kilometers) B. 30 to 50 miles (50 to 75 kilometers) C. ...

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-•...

Aa flow - A type of lava flow that has a jagged, blocky surface. Ablation - A general term for the loss of ice and snow from a glacier. Abrasion - The grinding and scraping of a rock surface by the friction and impact of rock particles carried by water, wind, and ice Abyssal plain - A very level area of the deep-ocean floor, usually lying at the foot of the continental rise. Accretionary wedge - A large wedge-shaped mass of sediment that accumulates in subduction zones. Sediment is scr...

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...

Geology 1114 Test 1 Exam Questions And Answers (Verified And Updated) Flux melting most likely occurs at: (A) Mid-ocean ridges. (B) Transform faults. (C) Subduction zones. (D) None of the above - answer(C) Subduction zones. Decompression melting occurs as a result of: (A) Decrease of the confining pressure as the Core rises to shallower depth. (B) Increase of the confining pressure as the asthenosphere rises to shallower depth. (C) Decrease of the confining pressure as the lithosphere ...

South Napa EQ : M=6, 08/24/14 Tohoku EQ : M=9, 03/11/11 Alaska EQ : pacific plate subducting underneath NA, M=9.2, 1964 Cascadia starts: : north in Cape Medicino Cascadia subducts under: : Juan de Fuca Plate There has not been a large EQ in Cascadia subduction zone in past _____ years : 300 2 | P a g e Since there has not been a large EQ in Cascadia subduction zone for a very long time, there is a high chance that there will be a M = ____ EQ : 9 Which junction is the seismically...

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...