Aim #9: Plate Tectonics Theory – Convergent
... lithosphere is broken up into 8 major plates that move relative to one another. ...
... lithosphere is broken up into 8 major plates that move relative to one another. ...
*Poster author, .
... when we account for galactic cosmochemical evolution of the principal longlived radionuclides and Si (12). However, compositionally layered mantle convection, which we do not model, may allow volcanism to persist on old stagnant-lid planets (such as Mars?) (13) ...
... when we account for galactic cosmochemical evolution of the principal longlived radionuclides and Si (12). However, compositionally layered mantle convection, which we do not model, may allow volcanism to persist on old stagnant-lid planets (such as Mars?) (13) ...
Phet Plate Tectonics Inquiry
... Describe the differences between oceanic and continental crust, including their respective properties of density, composition, temperature and thickness. Predict how changes in composition and temperature change crust density and buoyancy. Predict tectonic movement based upon compositional and physi ...
... Describe the differences between oceanic and continental crust, including their respective properties of density, composition, temperature and thickness. Predict how changes in composition and temperature change crust density and buoyancy. Predict tectonic movement based upon compositional and physi ...
Moving Plates- Spreading and Colliding
... In plate tectonics, a divergent boundary is a linear feature that exists between two tectonic plates that are moving away from each other. These areas can form in the middle of continents or on the ocean floor. As the plates pull apart, hot molten material can rise up this newly formed pathway to th ...
... In plate tectonics, a divergent boundary is a linear feature that exists between two tectonic plates that are moving away from each other. These areas can form in the middle of continents or on the ocean floor. As the plates pull apart, hot molten material can rise up this newly formed pathway to th ...
Evolution of the Earth
... • Plates are being pulled apart by convection currents in the asthenosphere. • As the plates separate along the boundary, the block between the faults cracks and drops down into the soft, plastic interior (the asthenosphere). • New crust is formed along the boundary. • Earthquakes occur along the fa ...
... • Plates are being pulled apart by convection currents in the asthenosphere. • As the plates separate along the boundary, the block between the faults cracks and drops down into the soft, plastic interior (the asthenosphere). • New crust is formed along the boundary. • Earthquakes occur along the fa ...
Name: Section: Date: Plate Tectonics Learning Objectives
... Describe the differences between oceanic and continental crust, including their respective properties of density, composition, temperature and thickness. Predict how changes in composition and temperature change crust density and buoyancy. Predict tectonic movement based upon compositional and physi ...
... Describe the differences between oceanic and continental crust, including their respective properties of density, composition, temperature and thickness. Predict how changes in composition and temperature change crust density and buoyancy. Predict tectonic movement based upon compositional and physi ...
Part 1 - cosee now
... The Earth is made up of different layers that are dynamic. There is a connection between the features of the Earth and the rock cycle. Phenomena such as earthquakes and volcanoes result from tectonic activity. The current location of the continents is the result of past plate movement and is continu ...
... The Earth is made up of different layers that are dynamic. There is a connection between the features of the Earth and the rock cycle. Phenomena such as earthquakes and volcanoes result from tectonic activity. The current location of the continents is the result of past plate movement and is continu ...
Student Google Slides Presentation
... tectonic plates. 2. Movement happens over millions of years and it’s called continental drift. 250 million years ago, all the continents were joined together to make a giant continent called Pangaea. 3. The plates’ movement happens very slowly. 4. The Red Sea was formed where the African and Arabian ...
... tectonic plates. 2. Movement happens over millions of years and it’s called continental drift. 250 million years ago, all the continents were joined together to make a giant continent called Pangaea. 3. The plates’ movement happens very slowly. 4. The Red Sea was formed where the African and Arabian ...
Document
... forms earth’s outer skin • 5 to 100 km thick, average thickness is 35 km • thinnest layer • less than 1% of Earth’s mass • Composition of crust: oxygen, silicon, ...
... forms earth’s outer skin • 5 to 100 km thick, average thickness is 35 km • thinnest layer • less than 1% of Earth’s mass • Composition of crust: oxygen, silicon, ...
Type of Boundary - Ms Dudek`s Website
... (remember that oceanic crust is denser than continental crust) ...
... (remember that oceanic crust is denser than continental crust) ...
PowerPoint Presentation - Inside the Earth
... forms earth’s outer skin • 5 to 100 km thick, average thickness is 35 km • thinnest layer • less than 1% of Earth’s mass • Composition of crust: oxygen, silicon, ...
... forms earth’s outer skin • 5 to 100 km thick, average thickness is 35 km • thinnest layer • less than 1% of Earth’s mass • Composition of crust: oxygen, silicon, ...
Plates on the Move
... insight to the mechanism for how the continents moved. • The magma which pushes up at the mid-ocean ridge provides the new land pushing the plates, and the subduction zones gobble up the land on the the other side of the plates. The mechanism was convection currents! ...
... insight to the mechanism for how the continents moved. • The magma which pushes up at the mid-ocean ridge provides the new land pushing the plates, and the subduction zones gobble up the land on the the other side of the plates. The mechanism was convection currents! ...
Plate Tectonics PPT
... • Hot magma in the Earth moves toward the surface, cools, get denser, and then sinks again with the pull of gravity • Creates convection currents in asthenosphere beneath the plates that cause the plates to move. ...
... • Hot magma in the Earth moves toward the surface, cools, get denser, and then sinks again with the pull of gravity • Creates convection currents in asthenosphere beneath the plates that cause the plates to move. ...
CHAPTER 7: PLATE TECTONICS--
... The crust of the Earth is broken into many pieces called plates. There are about 15 plates. The plates "float" on the soft, plastic mantle which is located below the crust. These plates bump and grind as they move and sometimes they stick and build up pressure. The pressure builds and the rock b ...
... The crust of the Earth is broken into many pieces called plates. There are about 15 plates. The plates "float" on the soft, plastic mantle which is located below the crust. These plates bump and grind as they move and sometimes they stick and build up pressure. The pressure builds and the rock b ...
Unit 3 Study Guide
... have since drifted. Wegnener used four pieces of evidence to support his hypothesis: The continents fit together like puzzle pieces. We call this supercontinent Pangaea. He found fossils of tropical animals and plants in arctic places. He collected evidence of historic climate data indicating ...
... have since drifted. Wegnener used four pieces of evidence to support his hypothesis: The continents fit together like puzzle pieces. We call this supercontinent Pangaea. He found fossils of tropical animals and plants in arctic places. He collected evidence of historic climate data indicating ...
PlateTectonics PREtest 1. List the 3 main layers of the Earth. What
... the 3 main layers of the earth ---include the most common elements found in each layer. OR Make a multimedia presentation that explains what the earth’s layers are made of (what elements) OR Watch Brainpop: Earth’s Structure, then take the quiz (print the results or write the correct answers on the ...
... the 3 main layers of the earth ---include the most common elements found in each layer. OR Make a multimedia presentation that explains what the earth’s layers are made of (what elements) OR Watch Brainpop: Earth’s Structure, then take the quiz (print the results or write the correct answers on the ...
Layers of the Earth (Notes 1/5)
... 2. Gravity compressed the ball. 3. The compression made the ball rotate faster, & the compressed material reacted into a hot core (Sun.) 4. Material around the ball compacted into ...
... 2. Gravity compressed the ball. 3. The compression made the ball rotate faster, & the compressed material reacted into a hot core (Sun.) 4. Material around the ball compacted into ...
PLATE TECTONICS
... Age dating sediments on either side of the ridge indicates the sediments get progressively older away from the mid-ocean ridge axis Thickness of sediments also increases away from ridge ...
... Age dating sediments on either side of the ridge indicates the sediments get progressively older away from the mid-ocean ridge axis Thickness of sediments also increases away from ridge ...
DR 9.3a: Causes of Volcanic Eruptions
... one tectonic plate against another. one tectonic plate over another. one tectonic plate under another. one tectonic plate away from another. ...
... one tectonic plate against another. one tectonic plate over another. one tectonic plate under another. one tectonic plate away from another. ...
Geology 12 Plate Boundaries
... pushed apart by the rising magma. The plates then slide down the oceanic ridges. 2. Slab Pull: The cold, dense leading edge of the sinking plate may pull the rest of the plate with ...
... pushed apart by the rising magma. The plates then slide down the oceanic ridges. 2. Slab Pull: The cold, dense leading edge of the sinking plate may pull the rest of the plate with ...
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.