Slow Motion Earth
... • How do we know slow objects are moving? • Plates – Broken pieces of Earth’s crust ...
... • How do we know slow objects are moving? • Plates – Broken pieces of Earth’s crust ...
Horizontal 1. Earth`s innermost layer, which is mostly iron and
... 1. Earth’s innermost layer, which is mostly iron and includes the inner core & outer core. 6. Separate pieces of lithosphere that move on top of the asthenosphere. 8. The process by which new lithosphere is created at midocean ridges as older lithosphere moves away. 10. The lowest portion of mantle, ...
... 1. Earth’s innermost layer, which is mostly iron and includes the inner core & outer core. 6. Separate pieces of lithosphere that move on top of the asthenosphere. 8. The process by which new lithosphere is created at midocean ridges as older lithosphere moves away. 10. The lowest portion of mantle, ...
File
... • From seismic and other geophysical evidence and laboratory experiments, scientists agree with the theory that the plate-driving force is the slow movement of hot, softened mantle that lies below the rigid plates • Below the lithospheric plates, at some depth the mantle is partially molten and can ...
... • From seismic and other geophysical evidence and laboratory experiments, scientists agree with the theory that the plate-driving force is the slow movement of hot, softened mantle that lies below the rigid plates • Below the lithospheric plates, at some depth the mantle is partially molten and can ...
Section 1 Review
... convergent boundary the boundary between tectonic plates that are colliding divergent boundary the boundary. between tectonic plates that are moving away from each other I ...
... convergent boundary the boundary between tectonic plates that are colliding divergent boundary the boundary. between tectonic plates that are moving away from each other I ...
Study Guide 9 -
... rocks, indicate the directions continents have moved through time. (see p.184) e. Reexamination of the jigsaw puzzle" fit of continents continues to support the idea that continents were once joined together and have since separated. (see p.184-185) f. The reconstructions of plate motions indicate t ...
... rocks, indicate the directions continents have moved through time. (see p.184) e. Reexamination of the jigsaw puzzle" fit of continents continues to support the idea that continents were once joined together and have since separated. (see p.184-185) f. The reconstructions of plate motions indicate t ...
The process where the lithosphere plunges back into the interior of
... and Ocean Floor Spreading. It explains how the Earth has changed over time ...
... and Ocean Floor Spreading. It explains how the Earth has changed over time ...
Review of Plate Tectonics Name
... ___________________________. An example of this is where India on the Indoaustralian Plate crashed into Asia and is still forming the __________________________ mountains. 16. The Appalachian Mountains on the ____________ coast of the United States formed along time ago in the formation of _________ ...
... ___________________________. An example of this is where India on the Indoaustralian Plate crashed into Asia and is still forming the __________________________ mountains. 16. The Appalachian Mountains on the ____________ coast of the United States formed along time ago in the formation of _________ ...
Where Are We Going?
... were once part of one giant supercontinent, Pangaea, which broke apart and allowed the continents to “drift.” Since then it has been determined that the continents are not just “drifting” but rather moving apart due to plate tectonics. Wegener’s theory was, however, instrumental in paving the way fo ...
... were once part of one giant supercontinent, Pangaea, which broke apart and allowed the continents to “drift.” Since then it has been determined that the continents are not just “drifting” but rather moving apart due to plate tectonics. Wegener’s theory was, however, instrumental in paving the way fo ...
Plate Tectonics Guided Notes
... The Earth is made up of 3 main layers (_________ , _____________ , ___________) On the surface of the Earth are __________________ ________________ that move very slowly around the world ______________________ ________________ are made up of crust and upper mantle There are 2 types of plates ...
... The Earth is made up of 3 main layers (_________ , _____________ , ___________) On the surface of the Earth are __________________ ________________ that move very slowly around the world ______________________ ________________ are made up of crust and upper mantle There are 2 types of plates ...
Study Guide for layers or earth and plate tectonics 2017
... 12. What state (solid, liquid, gas) is the inner and outer core? 13. What layer or part of the Earth causes tectonic plates to move? 14. What causes the tectonic plates to move? 15. What is the name of the strong physical layer of the mantle? 16. What are Plate Tectonics, continental drift, and Pang ...
... 12. What state (solid, liquid, gas) is the inner and outer core? 13. What layer or part of the Earth causes tectonic plates to move? 14. What causes the tectonic plates to move? 15. What is the name of the strong physical layer of the mantle? 16. What are Plate Tectonics, continental drift, and Pang ...
Other Notes on Earth*s Changing Surface
... 2. What is the following a picture of (be specific)? 3. What type of heat transfer takes place in the mantle? 4. Why does the Earth’s rigid crust float on top of the mantle? 5. Which portion of the Earth contains plates, which move to ...
... 2. What is the following a picture of (be specific)? 3. What type of heat transfer takes place in the mantle? 4. Why does the Earth’s rigid crust float on top of the mantle? 5. Which portion of the Earth contains plates, which move to ...
V.V. Beloussov (1907-1990) Famous opponent of plate tectonics
... Sediment thickness in the oceans does not correlate with the distance from ridge ...
... Sediment thickness in the oceans does not correlate with the distance from ridge ...
Seafloor Spreading and Paleomagnetism
... Since the hotter material deep in the asthenosphere is less dense it slowly rises. As it reaches the base of the lithosphere it begins to cool, become more dense, and begins to sink. Rising convection currents will move plates apart (divergent). Sinking convection currents will move ...
... Since the hotter material deep in the asthenosphere is less dense it slowly rises. As it reaches the base of the lithosphere it begins to cool, become more dense, and begins to sink. Rising convection currents will move plates apart (divergent). Sinking convection currents will move ...
Ch 4 Sec 1,2
... mid-ocean ridge, where magma from deep in the earth wells up through the rift. The ocean floor moves away from the ridge and new rocks form as the magma cools. This is Seafloor Spreading. ...
... mid-ocean ridge, where magma from deep in the earth wells up through the rift. The ocean floor moves away from the ridge and new rocks form as the magma cools. This is Seafloor Spreading. ...
Plate Tectonics Intro
... Under the lithosphere, there is a layer of mantle that is super soft (like melted plastic) that the plates float on top of This layer is called the asthenosphere 7 major plates (pages 256-257, Figure 8) The grinding movements of the plates ...
... Under the lithosphere, there is a layer of mantle that is super soft (like melted plastic) that the plates float on top of This layer is called the asthenosphere 7 major plates (pages 256-257, Figure 8) The grinding movements of the plates ...
oceanic ridges
... Collison zones form where both sides of a convergent boundary consist of continental (buoyant) material. Modern example: Himalayas ...
... Collison zones form where both sides of a convergent boundary consist of continental (buoyant) material. Modern example: Himalayas ...
Answer Key - Scioly.org
... East Pacific rise, lithosphere of that same age and depth will be much further away, producing a gentle slope away from the ridge (2). 73) The basin and range is uplifted and extended continental crust (1). Dominant normal faulting produces horsts and grabens that are the ranges and basins, respecti ...
... East Pacific rise, lithosphere of that same age and depth will be much further away, producing a gentle slope away from the ridge (2). 73) The basin and range is uplifted and extended continental crust (1). Dominant normal faulting produces horsts and grabens that are the ranges and basins, respecti ...
Plate Tectonics - Choteau Schools
... Mid-ocean ridge – Where oceanic crust is being pulled apart. ...
... Mid-ocean ridge – Where oceanic crust is being pulled apart. ...
Inside Earth-Chapter 1 - Kenston Local Schools
... the hot material in the mantle (asthenosphere); contributes to the movement of the crustal plates; the movement of fluid, caused by differences in temperature, that transfers heat from one part of the fluid to another ...
... the hot material in the mantle (asthenosphere); contributes to the movement of the crustal plates; the movement of fluid, caused by differences in temperature, that transfers heat from one part of the fluid to another ...
isostasy - UMSL.edu
... The process by which the Lithospheric plates, which are "floating" on the Mantle, adjust vertically to achieve an equilibrium (the crust and upper mantle have a uniform density.) Because Oceanic Crust has a higher density than Continental Crust, it adjusts lower into the Mantle. This condition is au ...
... The process by which the Lithospheric plates, which are "floating" on the Mantle, adjust vertically to achieve an equilibrium (the crust and upper mantle have a uniform density.) Because Oceanic Crust has a higher density than Continental Crust, it adjusts lower into the Mantle. This condition is au ...
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.