Plate Tectonics and Layers of the Earth Essential Vocabulary
... Very center solid iron Around inner core liquid iron/nickel Layer between crust and core Thin solid outmost layer of the Earth Made of the crust and upper rigid mantle Hot solid flowing rock on which the plates move Strong lower mantle just above the core Pieces of lithosphere that move Theory that ...
... Very center solid iron Around inner core liquid iron/nickel Layer between crust and core Thin solid outmost layer of the Earth Made of the crust and upper rigid mantle Hot solid flowing rock on which the plates move Strong lower mantle just above the core Pieces of lithosphere that move Theory that ...
Chapter 4
... Chapter 4 - 2 Restless Continents Continental Drift Theory Alfred Wegener Continents can drift apart from one another and have done so in the past Pangea Greek word meaning “All Earth” Name for the single land mass that is the separate continents of today Panthelassa Name for the single oc ...
... Chapter 4 - 2 Restless Continents Continental Drift Theory Alfred Wegener Continents can drift apart from one another and have done so in the past Pangea Greek word meaning “All Earth” Name for the single land mass that is the separate continents of today Panthelassa Name for the single oc ...
File
... 10. At a D_______________ B_______________ plates move A_______________ from one another. ...
... 10. At a D_______________ B_______________ plates move A_______________ from one another. ...
Convection Cell Slab Pull Ridge Push
... 18. Match each of the following terms or descriptions to one of the big idea processes; continental drift, sea floor spreading, or plate tectonics. a. magma rises at a rift valley b. plates move as fast as a fingernail grows c. matching rock formations d. convergent, divergent, transform e. oceanic ...
... 18. Match each of the following terms or descriptions to one of the big idea processes; continental drift, sea floor spreading, or plate tectonics. a. magma rises at a rift valley b. plates move as fast as a fingernail grows c. matching rock formations d. convergent, divergent, transform e. oceanic ...
6.5 NOTES What causes plate tectonics? Objective: Describe the
... Convection currents in the upper mantle cause the tectonic plates to move. The cooler mantle sinks closer to the core, heats up, and then rises. The process repeats in an endless cycle, carrying the plates along like a package on a conveyor belt. ...
... Convection currents in the upper mantle cause the tectonic plates to move. The cooler mantle sinks closer to the core, heats up, and then rises. The process repeats in an endless cycle, carrying the plates along like a package on a conveyor belt. ...
Tectonic Plates Supplemental PowerPoint Presentation
... The Earth’s Structure Mantle Outer Core Inner Core ...
... The Earth’s Structure Mantle Outer Core Inner Core ...
Warm- Up
... 6. Put the following in order of increasing density: outer core, continental crust, asthenosphere, oceanic crust, 7. What are the 3 types of convergent boundaries? 8. At which type of boundary is crust neither created nor destroyed? 9. If two oceanic plates collide, which plate will go under the oth ...
... 6. Put the following in order of increasing density: outer core, continental crust, asthenosphere, oceanic crust, 7. What are the 3 types of convergent boundaries? 8. At which type of boundary is crust neither created nor destroyed? 9. If two oceanic plates collide, which plate will go under the oth ...
Plate Tectonics – Study Guide
... 1. A_____ W______ found evidence of continental drift. When he proposed this theory at first he could not identify the force that would move tectonic plates; other _____ did not accept his theory because he could not explain what could move such large plates. Later scientists linked the idea of c___ ...
... 1. A_____ W______ found evidence of continental drift. When he proposed this theory at first he could not identify the force that would move tectonic plates; other _____ did not accept his theory because he could not explain what could move such large plates. Later scientists linked the idea of c___ ...
PLATE BOUNDARY
... 1. The Lithosphere (outer portion of earth, includes crust and upper mantle) is broken into pieces called *PLATES* ...
... 1. The Lithosphere (outer portion of earth, includes crust and upper mantle) is broken into pieces called *PLATES* ...
Plate Tectonics U2L4 Cloze Name: ______ 1. The supercontinent
... 1. The supercontinent called ________ formed 300 million years ago and began to break up 200 million years ago. 2. The process by which new oceanic lithosphere sea floor forms when magma rises to Earth’s surface, called ________ _________, occurs at mid-ocean ridges and solidifies, as older existing ...
... 1. The supercontinent called ________ formed 300 million years ago and began to break up 200 million years ago. 2. The process by which new oceanic lithosphere sea floor forms when magma rises to Earth’s surface, called ________ _________, occurs at mid-ocean ridges and solidifies, as older existing ...
LECTURE W1-L2 - Earth Structure
... The Pressure Gradient • P increases = rgh • Nearly linear through mantle ~ 30 MPa/km 1 GPa at base of ave crust ...
... The Pressure Gradient • P increases = rgh • Nearly linear through mantle ~ 30 MPa/km 1 GPa at base of ave crust ...
Introduction to Plate Tectonics California Geology 20
... and has gained acceptance within the scientific community but has not yet been decisively proven. Or…… ...
... and has gained acceptance within the scientific community but has not yet been decisively proven. Or…… ...
Chapter 7
... • Remains of warm climate plants in arctic zones and Arctic clues in tropical zones • Similar rock structures found on different continents ...
... • Remains of warm climate plants in arctic zones and Arctic clues in tropical zones • Similar rock structures found on different continents ...
File
... 10. At a D_______________ B_______________ plates move A_______________ from one another. ...
... 10. At a D_______________ B_______________ plates move A_______________ from one another. ...
Chapter 1 Study Guide – Plate Tectonics
... What are the three main layers of the Earth and what are they made up of? a. crust – a layer of solid rock that includes both dry land and ocean floor b. mantle – very hot rock that is solid c. core – made mostly of iron and nickel. It has a liquid outer core and a solid inner core ...
... What are the three main layers of the Earth and what are they made up of? a. crust – a layer of solid rock that includes both dry land and ocean floor b. mantle – very hot rock that is solid c. core – made mostly of iron and nickel. It has a liquid outer core and a solid inner core ...
How are the crust, mantle, core alike
... 2. What is a tectonic plate? 3. What powers the movement of the tectonic plates? Tell where this force is and how it works? 4. What are seismic waves? 5. Why do seismic waves travel at different speeds in the lithosphere, Asthenosphere, mantle outer core and inner core? 6. What is the theory of cont ...
... 2. What is a tectonic plate? 3. What powers the movement of the tectonic plates? Tell where this force is and how it works? 4. What are seismic waves? 5. Why do seismic waves travel at different speeds in the lithosphere, Asthenosphere, mantle outer core and inner core? 6. What is the theory of cont ...
1 Plate Tectonics Post-Test
... 10. Crust is _______________ at spreading ridges and ___________________ at subduction zones. a. Destroyed, Created b. Created, Destroyed c. Fluid, Solid d. Solid, Fluid ...
... 10. Crust is _______________ at spreading ridges and ___________________ at subduction zones. a. Destroyed, Created b. Created, Destroyed c. Fluid, Solid d. Solid, Fluid ...
Plate Boundaries - Valhalla High School
... Theory of Continental Drift? • Alfred Wegner, 1915 • The continents were once a super-continent called Pangea • the continents are plowing through the ocean floors---most people didn’t believe this ...
... Theory of Continental Drift? • Alfred Wegner, 1915 • The continents were once a super-continent called Pangea • the continents are plowing through the ocean floors---most people didn’t believe this ...
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.