Quiz Analysis Unit 4: Plate Tectonics
... 5.4.5 Describe what occurs both below and above Earth’s surface at divergent plate boundaries 5.4.6 Give examples of where divergent plate boundaries occur on Earth 5.4.7 Describe what occurs during seafloor spreading 5.4.8 Describe what paleomagnetism is and how it supports the theory of plate tect ...
... 5.4.5 Describe what occurs both below and above Earth’s surface at divergent plate boundaries 5.4.6 Give examples of where divergent plate boundaries occur on Earth 5.4.7 Describe what occurs during seafloor spreading 5.4.8 Describe what paleomagnetism is and how it supports the theory of plate tect ...
The Rock Cycle
... Oceanic lithosphere is constantly being formed and destroyed (by seafloor spreading and subduction). Therefore, ocean basins are transient features. Continental lithosphere is too buoyant to be destroyed by subduction – in effect, plates of continental lithosphere “go along for the ride” as oceanic ...
... Oceanic lithosphere is constantly being formed and destroyed (by seafloor spreading and subduction). Therefore, ocean basins are transient features. Continental lithosphere is too buoyant to be destroyed by subduction – in effect, plates of continental lithosphere “go along for the ride” as oceanic ...
Alfred Wegener - From Continental Drift to Plate Tectonics
... massive continents thousands of miles across? What causes violent earthquakes to displace huge landmasses abruptly? How could great mountain ranges like Himalayas and Alps rise to such incredible heights? What makes earth's interior so restless? Answers to some of these questions may lie in understa ...
... massive continents thousands of miles across? What causes violent earthquakes to displace huge landmasses abruptly? How could great mountain ranges like Himalayas and Alps rise to such incredible heights? What makes earth's interior so restless? Answers to some of these questions may lie in understa ...
File
... 24. ___________________________ is the type of stress force that produces ___________________________. 25. The type of stress that moves a mass of rock forming a _________________________ is called ___________________. 26. Compared to P waves and S waves, surface waves ____________________________. ...
... 24. ___________________________ is the type of stress force that produces ___________________________. 25. The type of stress that moves a mass of rock forming a _________________________ is called ___________________. 26. Compared to P waves and S waves, surface waves ____________________________. ...
Section 19.3 - CPO Science
... Chapter Nineteen: Changing Earth 19.1 Inside Earth 19.2 Plate Tectonics 19.3 Plate Boundaries ...
... Chapter Nineteen: Changing Earth 19.1 Inside Earth 19.2 Plate Tectonics 19.3 Plate Boundaries ...
Geodynamics
... • Generation of new plate material occurs by seafloor spreading; that is, new material is generated along mid-ocean ridges. • The new oceanic lithosphere, once created, forms part of a rigid plate. • The Earth’s surface area remains constant; therefore seafloor spreading must be balanced by consu ...
... • Generation of new plate material occurs by seafloor spreading; that is, new material is generated along mid-ocean ridges. • The new oceanic lithosphere, once created, forms part of a rigid plate. • The Earth’s surface area remains constant; therefore seafloor spreading must be balanced by consu ...
UNIT 10 Plate Tectonics Study Guide
... - Transform faults are large and long vertical fractures found within the Earth’s crust that are caused by both divergent zones and because of Earth’s curvature as a sphere. - Thus the driving force of a transform fault is the energy from spreading centers or divergent zones. 1) Movement along these ...
... - Transform faults are large and long vertical fractures found within the Earth’s crust that are caused by both divergent zones and because of Earth’s curvature as a sphere. - Thus the driving force of a transform fault is the energy from spreading centers or divergent zones. 1) Movement along these ...
Dance of the continents - Centre for Advanced Study
... Wegener was right on many counts, but his theory was not perfect. For example, Wegener spoke only of continents, without explaining how they could plough through the seabed in transit to their current positions. In the 1950s, it became clear that Europe and the USA are slowly drifting apart while ma ...
... Wegener was right on many counts, but his theory was not perfect. For example, Wegener spoke only of continents, without explaining how they could plough through the seabed in transit to their current positions. In the 1950s, it became clear that Europe and the USA are slowly drifting apart while ma ...
Chapter 11
... Most sedimentary rocks are derived from preexisting rocks, or from organic materials, such as bone and shell that form limestone, mud that becomes compacted into shale, and ancient plant remains that become compacted into coal. The exogenic processes of weathering and erosion generate the material s ...
... Most sedimentary rocks are derived from preexisting rocks, or from organic materials, such as bone and shell that form limestone, mud that becomes compacted into shale, and ancient plant remains that become compacted into coal. The exogenic processes of weathering and erosion generate the material s ...
Week 7 - Geophile.net
... Igneous rock masses: lava flows, volcanic deposits, dikes, sills, laccoliths, stocks and batholiths Crosscutting relationships Metamorphic rock masses: relict bedding, contact aureoles, metamorphic zones, index minerals, isograds Strike and dip, dip angle, dip direction Folds: anticlines, synclines, ...
... Igneous rock masses: lava flows, volcanic deposits, dikes, sills, laccoliths, stocks and batholiths Crosscutting relationships Metamorphic rock masses: relict bedding, contact aureoles, metamorphic zones, index minerals, isograds Strike and dip, dip angle, dip direction Folds: anticlines, synclines, ...
Shoe Box Plate Tectonic Lab Teacher Pages
... 1.) Move the piece A and piece B of the shoe box together. 2.) In your journal/science notebook illustrate (draw) and describe in complete sentences what happened when the two plates collided. 3.) Move the piece A and piece B of the shoe box apart. 4.) In your journal/science notebook illustrate (dr ...
... 1.) Move the piece A and piece B of the shoe box together. 2.) In your journal/science notebook illustrate (draw) and describe in complete sentences what happened when the two plates collided. 3.) Move the piece A and piece B of the shoe box apart. 4.) In your journal/science notebook illustrate (dr ...
The Earth`s Interior
... crust has a long and hard-to-say name; it is called the "Mohorovicic Discontinuity," but scientists call it the Moho for short. On the upper part of the mantle there are sections called tectonic plates. The seven continents sit on the top of these tectonic plates. ...
... crust has a long and hard-to-say name; it is called the "Mohorovicic Discontinuity," but scientists call it the Moho for short. On the upper part of the mantle there are sections called tectonic plates. The seven continents sit on the top of these tectonic plates. ...
Plate Tectonics Section 1 Sea-Floor Spreading
... Sea-Floor Spreading, continued • In the late 1950’s geologist Harry Hess proposed that the valley at the center of the mid-ocean ridge was a crack, or rift, in Earth’s crust. • As the ocean floor moves away from the ridge, molten rock, or magma, rises to fill the crack. • Hess suggested that if the ...
... Sea-Floor Spreading, continued • In the late 1950’s geologist Harry Hess proposed that the valley at the center of the mid-ocean ridge was a crack, or rift, in Earth’s crust. • As the ocean floor moves away from the ridge, molten rock, or magma, rises to fill the crack. • Hess suggested that if the ...
The Theory of Plate Tectonics
... mantle is the major cause of plate motion. Mantle motion is transferred to the lithosphere at its boundary with the asthenosphere. The plates are carried along in much the same way that ice floats on slow-moving water. During subduction, gravity pulls one edge of a plate down into the mantle. The re ...
... mantle is the major cause of plate motion. Mantle motion is transferred to the lithosphere at its boundary with the asthenosphere. The plates are carried along in much the same way that ice floats on slow-moving water. During subduction, gravity pulls one edge of a plate down into the mantle. The re ...
Water inside fire - Creation Ministries International
... of our planet, which was calculated by Henry Cavendish in 1789 using Newton’s laws. We can also estimate the average density of the uppermost ‘layer’ known as ‘crust’ (from boreholes and from the rocks that outcrop on the surface). But how thick is the crust and what lies beneath it? This is where s ...
... of our planet, which was calculated by Henry Cavendish in 1789 using Newton’s laws. We can also estimate the average density of the uppermost ‘layer’ known as ‘crust’ (from boreholes and from the rocks that outcrop on the surface). But how thick is the crust and what lies beneath it? This is where s ...
earthquakes II
... made up of several pieces, called plates. The plates under the oceans are called oceanic plates and the rest are continental plates. •The plates are moved around by the motion of a deeper part of the earth (the mantle) that lies underneath the crust. •These plates are always bumping into each other, ...
... made up of several pieces, called plates. The plates under the oceans are called oceanic plates and the rest are continental plates. •The plates are moved around by the motion of a deeper part of the earth (the mantle) that lies underneath the crust. •These plates are always bumping into each other, ...
Earth`s Interior Project
... o Typed with a font large enough to be seen from 8ft. Size 22 font or larger is recommended. o Must contain at least 3 neat, well thought out and labeled illustrations, which can be hand-drawn or gathered from the internet. SITE YOUR SOURCES!!! o Must have a title (example: The Earth Inside, Earth’s ...
... o Typed with a font large enough to be seen from 8ft. Size 22 font or larger is recommended. o Must contain at least 3 neat, well thought out and labeled illustrations, which can be hand-drawn or gathered from the internet. SITE YOUR SOURCES!!! o Must have a title (example: The Earth Inside, Earth’s ...
Plate Tectonics - Galena Park ISD
... The student is expected to relate plate tectonics to the formation of crustal features (ex. folded mountain, rift valley, trench, volcanic mountains, and island arcs). Teaching Target ...
... The student is expected to relate plate tectonics to the formation of crustal features (ex. folded mountain, rift valley, trench, volcanic mountains, and island arcs). Teaching Target ...
Land Formations - Library Video Company
... of the oatmeal carton that’s about 12 centimeters, or five inches, long. This slit represents your mid-ocean ridge. Then, carefully cut an identical slit on each side of the first one. These two additional slits will represent your two deep trenches. 3. Stack the two paper strips exactly on top of e ...
... of the oatmeal carton that’s about 12 centimeters, or five inches, long. This slit represents your mid-ocean ridge. Then, carefully cut an identical slit on each side of the first one. These two additional slits will represent your two deep trenches. 3. Stack the two paper strips exactly on top of e ...
Class notes (*) - LSU Geology & Geophysics
... Key parts of Plate Tectonics Lithosphere or rigid lid that holds both crust and cold mantle together as one solid block (0100km) asthenoshphere or plastic,ductile, layer also within the mantle (100km depth to 300 km depth??) ...
... Key parts of Plate Tectonics Lithosphere or rigid lid that holds both crust and cold mantle together as one solid block (0100km) asthenoshphere or plastic,ductile, layer also within the mantle (100km depth to 300 km depth??) ...
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.