Name Youngblood, Period
... 29. Oceanic crust tends to be _____________ than continental crust. Therefore, it will slide under continental crust and form a ________________________________ zone. 30. Name and describe 2 Earth events that happen at convergent boundaries. ...
... 29. Oceanic crust tends to be _____________ than continental crust. Therefore, it will slide under continental crust and form a ________________________________ zone. 30. Name and describe 2 Earth events that happen at convergent boundaries. ...
Click here for the "Dynamic Earth Vocabulary"
... A zone where one tectonic plate moves under another tectonic plate at a convergent plate boundary. The denser plate always moves under the less dense plate. A deep, underwater trough (ditch) created by one plate subducting (moving beneath) another plate at a convergent boundary. A theory posed in 19 ...
... A zone where one tectonic plate moves under another tectonic plate at a convergent plate boundary. The denser plate always moves under the less dense plate. A deep, underwater trough (ditch) created by one plate subducting (moving beneath) another plate at a convergent boundary. A theory posed in 19 ...
Name Date
... 2. divergent boundaries- The place where two plates move apart, or diverge, is called a divergent boundary. Most divergent boundaries occur at the mid-ocean ridge. Sea floor spreading is a result at a divergent boundary along a mid-ocean ridge. When a divergent boundary develops on land, two slabs o ...
... 2. divergent boundaries- The place where two plates move apart, or diverge, is called a divergent boundary. Most divergent boundaries occur at the mid-ocean ridge. Sea floor spreading is a result at a divergent boundary along a mid-ocean ridge. When a divergent boundary develops on land, two slabs o ...
Chapter 4: Plate Tectonics
... 17. present north becomes South and South becomes North 18. they are in bands parallel to & on opposite sides of plate boundaries 19. they’re older further away from the boundary 20. area between spreading plate boundaries 21. new rocks form and pushes away older rocks 22. the measure of the amount ...
... 17. present north becomes South and South becomes North 18. they are in bands parallel to & on opposite sides of plate boundaries 19. they’re older further away from the boundary 20. area between spreading plate boundaries 21. new rocks form and pushes away older rocks 22. the measure of the amount ...
File
... was not well accepted at the time he was publishing his ideas. (He died on an expedition in Greenland collecting ice samples) • One reason scientists had a hard time with Wegener’s theory is that there was no mechanism for the continents motion. ...
... was not well accepted at the time he was publishing his ideas. (He died on an expedition in Greenland collecting ice samples) • One reason scientists had a hard time with Wegener’s theory is that there was no mechanism for the continents motion. ...
Plate tectonics.notebook
... b. Continental Oceanic Oceanic plate sinks into the lithosphere Subduction Zone c. Oceanic Oceanic One plate will sink under the other 3. Transform Boundary plates slide past one another horizontally strike slip fault causes earthquakes What is behind all this? Convection current cycle of ...
... b. Continental Oceanic Oceanic plate sinks into the lithosphere Subduction Zone c. Oceanic Oceanic One plate will sink under the other 3. Transform Boundary plates slide past one another horizontally strike slip fault causes earthquakes What is behind all this? Convection current cycle of ...
Earth*s Structure
... from 8-11 thousand degrees. The inner core is mostly iron and solid, with temperatures from 9-13 thousand degrees. The metals should melt at this temp, but the pressure is so great it forces it into a solid state. ...
... from 8-11 thousand degrees. The inner core is mostly iron and solid, with temperatures from 9-13 thousand degrees. The metals should melt at this temp, but the pressure is so great it forces it into a solid state. ...
Power Point - Fort Bend ISD
... *example: Mid-Atlantic Ridge – North American plate & Eurasian & African plates pulling apart ...
... *example: Mid-Atlantic Ridge – North American plate & Eurasian & African plates pulling apart ...
Week 3 (Norton), part a (pdf, 5.3 MB)
... Now we jump ahead to today: this graphic summarizes what we take for granted as major surface expressions of plate tectonic processes: 1. The divergent boundaries of lithosphere plates, as in the mid-oceanic ridge systems; 2. The convergent boundaries of lithospheric continental plates, where one pl ...
... Now we jump ahead to today: this graphic summarizes what we take for granted as major surface expressions of plate tectonic processes: 1. The divergent boundaries of lithosphere plates, as in the mid-oceanic ridge systems; 2. The convergent boundaries of lithospheric continental plates, where one pl ...
Document
... subducts underneath the continental lithosphere • Oceanic lithosphere heats and dehydrates as it subsides • The melt rises forming volcanism • E.g. The Andes ...
... subducts underneath the continental lithosphere • Oceanic lithosphere heats and dehydrates as it subsides • The melt rises forming volcanism • E.g. The Andes ...
Earth Science Review - elyceum-beta
... • Caused by underwater earthquake, or land slide that puts material into water • What are the major differences between a Tsunami and a Rogue Wave ...
... • Caused by underwater earthquake, or land slide that puts material into water • What are the major differences between a Tsunami and a Rogue Wave ...
File
... d. Hot magma rises through the boundary at the mid-ocean ranges, creating new rock and pushing apart the plates 13. The oldest oceanic crust would be found in which location? a. At the edge of a continent b. Half way between a ridge and a trench c. At a mid-ocean ridge d. At a deep sea trench 14. Wh ...
... d. Hot magma rises through the boundary at the mid-ocean ranges, creating new rock and pushing apart the plates 13. The oldest oceanic crust would be found in which location? a. At the edge of a continent b. Half way between a ridge and a trench c. At a mid-ocean ridge d. At a deep sea trench 14. Wh ...
Review Around the Room Questions
... 6. What layer makes up most of Earth’s mass? 7. Which type of crust is denser: continental or oceanic? (Think, which one is going to SINK) 8. When two plates touch, it is called a ________ ____________. 9. Temperature, density, and pressure __________ as we move from crust to core. 10. A fault is a ...
... 6. What layer makes up most of Earth’s mass? 7. Which type of crust is denser: continental or oceanic? (Think, which one is going to SINK) 8. When two plates touch, it is called a ________ ____________. 9. Temperature, density, and pressure __________ as we move from crust to core. 10. A fault is a ...
Background information Year 9, unit 2: Plate tectonics
... and clarified the mechanism by which continents moved. The continents are attached to plates that shift and change shape. In 1963, Fred Vine, Drummond Matthews, and others found that the crust surrounding the mid-ocean ridges showed alternating bands – each band magnetised with a polarity opposite t ...
... and clarified the mechanism by which continents moved. The continents are attached to plates that shift and change shape. In 1963, Fred Vine, Drummond Matthews, and others found that the crust surrounding the mid-ocean ridges showed alternating bands – each band magnetised with a polarity opposite t ...
Key Concept Review (Answers to in-text “Concept Checks”) Chapter
... 18. Hess (and Dietz) suggested that new seafloor develops at the Mid-Atlantic Ridge (and the other newly discovered ocean ridges) and then spreads outward from this line of origin. Continents would be carried along by the same forces that cause the ocean to grow. This motion could be powered by conv ...
... 18. Hess (and Dietz) suggested that new seafloor develops at the Mid-Atlantic Ridge (and the other newly discovered ocean ridges) and then spreads outward from this line of origin. Continents would be carried along by the same forces that cause the ocean to grow. This motion could be powered by conv ...
Quiz #2 - University of Hawaii at Hilo
... Crust and Mantle Mantle and Core Crust and Core Asthenosphere and Mantle Asthenosphere and Crust ...
... Crust and Mantle Mantle and Core Crust and Core Asthenosphere and Mantle Asthenosphere and Crust ...
H81-Theory of Plate Tectonics
... have earthquakes, volcanoes, and other geologic features. This is supported by evidence that the plates move and interact with each other in a number of ways. As we go through the slides, complete the data table. The Plates The Lithospheric Plates The major plates ...
... have earthquakes, volcanoes, and other geologic features. This is supported by evidence that the plates move and interact with each other in a number of ways. As we go through the slides, complete the data table. The Plates The Lithospheric Plates The major plates ...
Plate Boundaries Diagram Type of boundary and motion at
... Type of boundary and motion at boundary ...
... Type of boundary and motion at boundary ...
Chapter 5: Plate Tectonics
... 4. What occurs in sea-floor spreading and where does this occur? 5. What did the scientists in a submersible see when they observed the mid-ocean ridge? 6. How did drilling samples show that sea-floor spreading really has taken place? 7. What is subduction? 8. Why is old oceanic crust denser than ne ...
... 4. What occurs in sea-floor spreading and where does this occur? 5. What did the scientists in a submersible see when they observed the mid-ocean ridge? 6. How did drilling samples show that sea-floor spreading really has taken place? 7. What is subduction? 8. Why is old oceanic crust denser than ne ...
PLATE TECTONICS - Los Alamos Public Schools / Home
... At the mid ocean ridge, molten material rises from the mantle and erupts. The molten material then spreads out, pushing older rock to both sides of the ridge. ...
... At the mid ocean ridge, molten material rises from the mantle and erupts. The molten material then spreads out, pushing older rock to both sides of the ridge. ...
Chapter 2
... Rift Zone: break in the earth’s crust from which lava flows and new seafloor forms. Seamounts :submarine volcanoes Guyots: flat-topped volcanoes (INACTIVE) Abyssal Plain: flat part of seafloor Abyssal Hills : small hills Plateaus: flat-topped mountains ...
... Rift Zone: break in the earth’s crust from which lava flows and new seafloor forms. Seamounts :submarine volcanoes Guyots: flat-topped volcanoes (INACTIVE) Abyssal Plain: flat part of seafloor Abyssal Hills : small hills Plateaus: flat-topped mountains ...
The evolution of circum-Antarctic oceanic crust since cretaceous
... Gondwanaland break-up together with ongoing changes of the South Pacific tectonic regime led to the opening of new oceanic domains around Antarctica since Late Jurassic. On a geological timescale first-order changes in palaeo-climate, palaeo-oceanography and marine sedimentation are controlled by pl ...
... Gondwanaland break-up together with ongoing changes of the South Pacific tectonic regime led to the opening of new oceanic domains around Antarctica since Late Jurassic. On a geological timescale first-order changes in palaeo-climate, palaeo-oceanography and marine sedimentation are controlled by pl ...
Plate tectonics
Plate tectonics (from the Late Latin tectonicus, from the Greek: τεκτονικός ""pertaining to building"") is a scientific theory that describes the large-scale motion of Earth's lithosphere. This theoretical model builds on the concept of continental drift which was developed during the first few decades of the 20th century. The geoscientific community accepted the theory after the concepts of seafloor spreading were later developed in the late 1950s and early 1960s.The lithosphere, which is the rigid outermost shell of a planet (on Earth, the crust and upper mantle), is broken up into tectonic plates. On Earth, there are seven or eight major plates (depending on how they are defined) and many minor plates. Where plates meet, their relative motion determines the type of boundary; convergent, divergent, or transform. Earthquakes, volcanic activity, mountain-building, and oceanic trench formation occur along these plate boundaries. The lateral relative movement of the plates typically varies from zero to 100 mm annually.Tectonic plates are composed of oceanic lithosphere and thicker continental lithosphere, each topped by its own kind of crust. Along convergent boundaries, subduction carries plates into the mantle; the material lost is roughly balanced by the formation of new (oceanic) crust along divergent margins by seafloor spreading. In this way, the total surface of the globe remains the same. This prediction of plate tectonics is also referred to as the conveyor belt principle. Earlier theories (that still have some supporters) propose gradual shrinking (contraction) or gradual expansion of the globe.Tectonic plates are able to move because the Earth's lithosphere has greater strength than the underlying asthenosphere. Lateral density variations in the mantle result in convection. Plate movement is thought to be driven by a combination of the motion of the seafloor away from the spreading ridge (due to variations in topography and density of the crust, which result in differences in gravitational forces) and drag, with downward suction, at the subduction zones. Another explanation lies in the different forces generated by the rotation of the globe and the tidal forces of the Sun and Moon. The relative importance of each of these factors and their relationship to each other is unclear, and still the subject of much debate.