process of forming new oceanic crust from magma rising to the
... Which process adds new crust to the surface? ______Sea Floor ...
... Which process adds new crust to the surface? ______Sea Floor ...
Review Unit 1 - Effingham County Schools
... tectonic plates pull away or separate. This can create new ocean floor and cause magma to rise to surface. ...
... tectonic plates pull away or separate. This can create new ocean floor and cause magma to rise to surface. ...
Study Guide Chapter 3 – Plate Tectonics GPS: S6E5. Students will
... 8. The transfer of energy through space is called ________________________. 9. Heat transfer within a material or between materials that are touching is called _____________________. 10. _________________ is heat transfer by movement of currents with a fluid – which can be a liquid or a gas. 11. In ...
... 8. The transfer of energy through space is called ________________________. 9. Heat transfer within a material or between materials that are touching is called _____________________. 10. _________________ is heat transfer by movement of currents with a fluid – which can be a liquid or a gas. 11. In ...
What are the causes of plate Movement?
... Temperatures about 6000C but due to huge pressure solid (hotter than the surface of the sun) ...
... Temperatures about 6000C but due to huge pressure solid (hotter than the surface of the sun) ...
Inside EArth 1-5 Worksheets 2013
... Plates can carry c_________, the o________ floor, or both. ∆The Theory of Plate Motion (p. 43) What three things led J. Tuzo Wilson to develop the theory of Plate Tectonics? ...
... Plates can carry c_________, the o________ floor, or both. ∆The Theory of Plate Motion (p. 43) What three things led J. Tuzo Wilson to develop the theory of Plate Tectonics? ...
Key Ideas and Vocabulary—Suggested Answers
... 29. If tectonic activity has slowed or ceased in an area, the effects of weathering and erosion will no longer be “balanced” by mountain-building processes, causing the particular landform to become smaller. 30. A 31. Oceanic crust and continental crust have different compositions (are made up of di ...
... 29. If tectonic activity has slowed or ceased in an area, the effects of weathering and erosion will no longer be “balanced” by mountain-building processes, causing the particular landform to become smaller. 30. A 31. Oceanic crust and continental crust have different compositions (are made up of di ...
Continental Drift and Plate Tectonics
... D. Material nearer to Earth’s surface spreads out, cools and becomes denser. Then it sinks below the hotter, less dense material. E. Uneven heating causes material in the mantle to constantly and slowly rise and fall, resulting in convection current. F. As the currents move molten material sideways, ...
... D. Material nearer to Earth’s surface spreads out, cools and becomes denser. Then it sinks below the hotter, less dense material. E. Uneven heating causes material in the mantle to constantly and slowly rise and fall, resulting in convection current. F. As the currents move molten material sideways, ...
Eighth Grade ScienceEarth`s HistoryStudy Guide
... 4. Who proposed the theory of continental drift? Alfred Wegner 5. Why did scientists NOT support the theory of Continental Drift? Wegner could NOT explain how or why the plates moved. 6. What is subduction? When one plate goes under another plate and it is melted back into the mantle. 7. The Earth’s ...
... 4. Who proposed the theory of continental drift? Alfred Wegner 5. Why did scientists NOT support the theory of Continental Drift? Wegner could NOT explain how or why the plates moved. 6. What is subduction? When one plate goes under another plate and it is melted back into the mantle. 7. The Earth’s ...
Print › 8th Grade STAAR Plate Tectonics and Topo Maps
... Proposed the theory of sea-floor spreading where new crust material is created and is destroyed at ocean trenches, which lead to the theory of Plate Tectonics. ...
... Proposed the theory of sea-floor spreading where new crust material is created and is destroyed at ocean trenches, which lead to the theory of Plate Tectonics. ...
Theory of Plate Tectonics
... Hot material rises while cool material sinks Cool material is dense The motion of sinking and rising material drags the tectonic plate away from mid-ocean ridge Flash Presentation ...
... Hot material rises while cool material sinks Cool material is dense The motion of sinking and rising material drags the tectonic plate away from mid-ocean ridge Flash Presentation ...
hsess1-5
... Examples include evidence of the ages oceanic crust increasing with distance from mid-ocean ridges (a result of plate spreading) and the ages of North American continental crust increasing with distance away from a central ancient core (a result of past plate interactions).] ...
... Examples include evidence of the ages oceanic crust increasing with distance from mid-ocean ridges (a result of plate spreading) and the ages of North American continental crust increasing with distance away from a central ancient core (a result of past plate interactions).] ...
Partial melting
... As two plates continue to move apart, the rock in the seafloor grows older as its distance from the rift zone increases, and as it ages, it cools and becomes denser and is buried under marine sediments that are deposited on the seafloor. ...
... As two plates continue to move apart, the rock in the seafloor grows older as its distance from the rift zone increases, and as it ages, it cools and becomes denser and is buried under marine sediments that are deposited on the seafloor. ...
Ch 9 4 Testing Plate Tectonics
... c. Continental lithosphere is too buoyant to be forced down into the mantle. d. Subduction zones are never found at convergent boundaries. 2. Which of the following is a geographic example of a transform fault boundary? a. the Andes Mountains c. the San Andreas Fault b. the East African Rift valley ...
... c. Continental lithosphere is too buoyant to be forced down into the mantle. d. Subduction zones are never found at convergent boundaries. 2. Which of the following is a geographic example of a transform fault boundary? a. the Andes Mountains c. the San Andreas Fault b. the East African Rift valley ...
Why Plates Move… - Mr Vincent Science
... The mantle near the surface is cooler owing to the loss of heat through a thin crust Hot material rises and cool material sinks The slab of crust at subduction zones extends a long way into the mantle Mountains of heavy volcanic rocks exist along MOR’s As the rocks migrate from MOR’s to subduction z ...
... The mantle near the surface is cooler owing to the loss of heat through a thin crust Hot material rises and cool material sinks The slab of crust at subduction zones extends a long way into the mantle Mountains of heavy volcanic rocks exist along MOR’s As the rocks migrate from MOR’s to subduction z ...
What is Plate Tectonics?
... forms from magma the Earth’s surfaces rises between the two plates. ...
... forms from magma the Earth’s surfaces rises between the two plates. ...
key
... 1. 200 million years ago, all the continents were one called Pangaea. Evidence is continents fitting together, fossils of same organism on two different continents, similar mountain ranges on diff. continents. 2. Seismic waves tell us that the inside of the Earth is made up of layers. 3. Continental ...
... 1. 200 million years ago, all the continents were one called Pangaea. Evidence is continents fitting together, fossils of same organism on two different continents, similar mountain ranges on diff. continents. 2. Seismic waves tell us that the inside of the Earth is made up of layers. 3. Continental ...
File
... Identify that the sources of Earth’s internal heat (radioactive decay and heat of formation) Trace the lines of scientific evidence that lead to the inference that Earth’s core, mantle and crust are each made up of different materials Trace the lines of scientific evidence that lead to the inf ...
... Identify that the sources of Earth’s internal heat (radioactive decay and heat of formation) Trace the lines of scientific evidence that lead to the inference that Earth’s core, mantle and crust are each made up of different materials Trace the lines of scientific evidence that lead to the inf ...
GEOL 4110 Advanced Earth Science For Teachers Jim Miller
... plate into the mantle Mantle Push - Upwelling of the asthenospheric mantle pushes the plates apart Ridge Slide – Thermal upwelling at ridges causes plates to separate by sliding downhill (by gravity) Problem - we are not sure how the mantle is structured. ...
... plate into the mantle Mantle Push - Upwelling of the asthenospheric mantle pushes the plates apart Ridge Slide – Thermal upwelling at ridges causes plates to separate by sliding downhill (by gravity) Problem - we are not sure how the mantle is structured. ...
Plate Tectonics Review
... 1. The Theory of Plate Tectonics combines Continental Drift with the processes of ____________________ & ____________________. 2. Lithospheric Plates includes the two types of crust (______________ or _______________) and the upper rigid part of the mantle. 3. Oceanic Crust is ______________________ ...
... 1. The Theory of Plate Tectonics combines Continental Drift with the processes of ____________________ & ____________________. 2. Lithospheric Plates includes the two types of crust (______________ or _______________) and the upper rigid part of the mantle. 3. Oceanic Crust is ______________________ ...
Oceanic Crust
... What fuels this process? The Earth’s engine cont. • Other possibilities to plate tectonics are; • Ridge push- At the mid-atlantic ocean ridge the lithosphere is higher than where it sinks into the asthenosphere. It actually pushes the plates downhill. • Slab pull- Because oceanic lithosphere is den ...
... What fuels this process? The Earth’s engine cont. • Other possibilities to plate tectonics are; • Ridge push- At the mid-atlantic ocean ridge the lithosphere is higher than where it sinks into the asthenosphere. It actually pushes the plates downhill. • Slab pull- Because oceanic lithosphere is den ...
Plate Tectonics Theory and Boundary Tree Map
... -new sea-floor other (horizontal) Forms - as they have - most often into irregular edges mid-ocean ridges they grind and jerk causing earthquakes Continental-Oceanic When collision occurs, denseroceanic crust sinks into Asthenosphere and is re-melted and recycled. The location is called the Subducti ...
... -new sea-floor other (horizontal) Forms - as they have - most often into irregular edges mid-ocean ridges they grind and jerk causing earthquakes Continental-Oceanic When collision occurs, denseroceanic crust sinks into Asthenosphere and is re-melted and recycled. The location is called the Subducti ...
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.