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pangaea - Cloudfront.net
... the upheavals that we have since come to know as plate tectonics, the shifting of the Earth's crust tore the supercontinent asunder about the middle of the Mesozoic period (approximately 180 million years B.P.) and large bodies of land drifted across the surface of the Earth to ultimately become our ...
... the upheavals that we have since come to know as plate tectonics, the shifting of the Earth's crust tore the supercontinent asunder about the middle of the Mesozoic period (approximately 180 million years B.P.) and large bodies of land drifted across the surface of the Earth to ultimately become our ...
(comprised of the continental crust and oceanic crust).
... surface and crustal features. Diagram (b) is drawn to true scale. Here the actual relationships between lithospheric plates can be examined, but surface features are too small to be shown. ...
... surface and crustal features. Diagram (b) is drawn to true scale. Here the actual relationships between lithospheric plates can be examined, but surface features are too small to be shown. ...
“I Can” – Plate Tectonics Objectives – Learning Target Analysis
... generated - section 6.1 (also know how these items relate to the causes of convergent and divergent plate boundaries) E 3.2C Describe the differences between oceanic and continental crust (including density, thickness, age, composition – what it’s made of) – sec 6.1-6.4. E3.3A Explain how plate tect ...
... generated - section 6.1 (also know how these items relate to the causes of convergent and divergent plate boundaries) E 3.2C Describe the differences between oceanic and continental crust (including density, thickness, age, composition – what it’s made of) – sec 6.1-6.4. E3.3A Explain how plate tect ...
October 10, 2011
... a. The Theory of PT explains the formation, movement, and subduction of Earth’s plates. 2. Gravity helps pull a subducting plate down into the mantle. 3. As plates move they collide, pull apart, and grind past each other creating changes in Earth’s surface including volcanoes, mountain ranges, and d ...
... a. The Theory of PT explains the formation, movement, and subduction of Earth’s plates. 2. Gravity helps pull a subducting plate down into the mantle. 3. As plates move they collide, pull apart, and grind past each other creating changes in Earth’s surface including volcanoes, mountain ranges, and d ...
Dynamic Earth Interactive: Plate Tectonics
... into several large __________________, which hold the continents and the oceans, and are in constant motion. 1 of 4 ...
... into several large __________________, which hold the continents and the oceans, and are in constant motion. 1 of 4 ...
Plate Tectonics
... the grave site. Wegener had been fifty years of age and a heavy smoker and it was believed that he had died of ...
... the grave site. Wegener had been fifty years of age and a heavy smoker and it was believed that he had died of ...
Pangaea Wegener video guide 2016 17
... meaning all/whole earth. He theorized further that around 250 million years ago these continents drifted apart. His theories needed evidence to support them. Directions: List and describe 3 pieces of evidence below. 1. Evidence: ________________________________ Explanation: ...
... meaning all/whole earth. He theorized further that around 250 million years ago these continents drifted apart. His theories needed evidence to support them. Directions: List and describe 3 pieces of evidence below. 1. Evidence: ________________________________ Explanation: ...
Plate tectonics, earthquakes, and volcanoes 1. Hypothesis that
... 3. The driving force in plate tectonics in which lava from the mantle rises to the lithosphere, moves horizontally, cools and sinks back to the mantle. 4. The German scientist who proposed the Continental Drift Theory. 5. The plastic like layer below the lithosphere in the earth’s mantle. 6. The nam ...
... 3. The driving force in plate tectonics in which lava from the mantle rises to the lithosphere, moves horizontally, cools and sinks back to the mantle. 4. The German scientist who proposed the Continental Drift Theory. 5. The plastic like layer below the lithosphere in the earth’s mantle. 6. The nam ...
Plate Tectonic Jeopardy 2011 - cristinscordato
... A place where two plates are moving away from each other. ...
... A place where two plates are moving away from each other. ...
PlateTectonicsTheoryteachernotesL2 30.50KB
... decay of elements within the mantle help to create convection currents. These currents exhibit a continuous circulatory motion within the aethenosphere that causes the crustal plates to move. They pull apart at speading ridges (under the oceans) and rift zones (on the continents). The thinner oce ...
... decay of elements within the mantle help to create convection currents. These currents exhibit a continuous circulatory motion within the aethenosphere that causes the crustal plates to move. They pull apart at speading ridges (under the oceans) and rift zones (on the continents). The thinner oce ...
Earth*s Structure
... 11. According to plate tectonics theory Earth’s outer layer, the __________________, is broken into several large __________________, which hold the continents and the oceans, and are in constant motion. 12. Plate tectonics theory explains how ____________________________________, __________________ ...
... 11. According to plate tectonics theory Earth’s outer layer, the __________________, is broken into several large __________________, which hold the continents and the oceans, and are in constant motion. 12. Plate tectonics theory explains how ____________________________________, __________________ ...
PP4 8th Grade - Plates Change Position over time
... • As the plates move apart molten rock pushes up • Called spreading centers • Mid-Atlantic Ridge ...
... • As the plates move apart molten rock pushes up • Called spreading centers • Mid-Atlantic Ridge ...
Vocabulary for Earth`s Structure and Note Cards Crust – the
... Crust – the outermost layer of the Earth Mantle – The layer of the Earth between the crust and the outer core Core – the Earth’s layer that extends from below the mantle to the center of the Earth. Outer core – liquid part of the core, made of molten iron and nickel Inner core – solid part of the co ...
... Crust – the outermost layer of the Earth Mantle – The layer of the Earth between the crust and the outer core Core – the Earth’s layer that extends from below the mantle to the center of the Earth. Outer core – liquid part of the core, made of molten iron and nickel Inner core – solid part of the co ...
Plate Tectonics Crossword
... 15. this theory states that pieces of Earth’s lithosphere are in slow, constant motion 16. this forms where two plates spread apart 17. heat transfer in the Earth’s mantle which causes tectonic plates to move DOWN 1. a city in the Arctic which once had a warm climate 2. the idea that Earth’s contine ...
... 15. this theory states that pieces of Earth’s lithosphere are in slow, constant motion 16. this forms where two plates spread apart 17. heat transfer in the Earth’s mantle which causes tectonic plates to move DOWN 1. a city in the Arctic which once had a warm climate 2. the idea that Earth’s contine ...
Plate Tectonics Vocabulary
... the continents once formed a single landmass, broke up, and drifted to their present locations ...
... the continents once formed a single landmass, broke up, and drifted to their present locations ...
Document
... The arrival of plate tectonics was a scientific revolution: Plate tectonic theory states that the Earth's surface is broken into rigid lithospheric plates that slide on top of asthenospheric mantle. The boundary between these lithosphere and asthenosphere is based on rheology (typically defined by ...
... The arrival of plate tectonics was a scientific revolution: Plate tectonic theory states that the Earth's surface is broken into rigid lithospheric plates that slide on top of asthenospheric mantle. The boundary between these lithosphere and asthenosphere is based on rheology (typically defined by ...
Study Guide Answers
... When subduction occurs (point D above) what happens to the oceanic crust as it moves under the continental crust? Oceanic crust is denser so when it converges with the continental plate causes subduction. The oceanic plate melts and convection currents recycle it back to point A 5. What is the main ...
... When subduction occurs (point D above) what happens to the oceanic crust as it moves under the continental crust? Oceanic crust is denser so when it converges with the continental plate causes subduction. The oceanic plate melts and convection currents recycle it back to point A 5. What is the main ...
Notes-Plate-tectonics-fall
... continents as they are today. He called the single land mass PANGAEA. (This is the one that is known today.) He gets the credit because he: Used the continents’ shapes Used rock data (matching rock types on South America and on Africa) Used fossil data (matching fossils on S.A. and ...
... continents as they are today. He called the single land mass PANGAEA. (This is the one that is known today.) He gets the credit because he: Used the continents’ shapes Used rock data (matching rock types on South America and on Africa) Used fossil data (matching fossils on S.A. and ...
Lecture 6 Review Sheet
... boundary, mid-ocean ridge, continental rift, rift valley, rift volcano, rift range or rift mountain, island arc, subduction, magma, volcano, collision zone, orogenic belt, volcanic arc, accretionary wedge, forearc basin, terrigenous/terrestrial sediment, subduction trench, magmatic arc, mountain cha ...
... boundary, mid-ocean ridge, continental rift, rift valley, rift volcano, rift range or rift mountain, island arc, subduction, magma, volcano, collision zone, orogenic belt, volcanic arc, accretionary wedge, forearc basin, terrigenous/terrestrial sediment, subduction trench, magmatic arc, mountain cha ...
Continental Drift Theory and Plate Tectonics
... the Earth's outer shell is not one solid sheet of rock but a series of large and small moving plates. • What did scientists realize when they “connected the dots?” ...
... the Earth's outer shell is not one solid sheet of rock but a series of large and small moving plates. • What did scientists realize when they “connected the dots?” ...
Evidence for Continental Drift
... – Mapping of the ocean floor revealed the ___________ _____, a long mountain range running down the middle of the Atlantic Ocean. – Rocks taken from the Mid-Atlantic Ridge were _______ than other ocean rocks. – Sediments along the ridge became thicker farther away from the ridge. – Paleomagnetism s ...
... – Mapping of the ocean floor revealed the ___________ _____, a long mountain range running down the middle of the Atlantic Ocean. – Rocks taken from the Mid-Atlantic Ridge were _______ than other ocean rocks. – Sediments along the ridge became thicker farther away from the ridge. – Paleomagnetism s ...
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.