Asymmetric Earth: mechanisms of plate tectonics and earthquakes∗
... waves slow down because of the presence of some percentage of melt in the mantle peridotites (Green et al., ; Hirschmann, ; Anderson, ; Schmerr, ). This layer, named LVZ (Low Velocity Zone), is at the base of the lithosphere, and at the top of the asthenosphere. It is the basic decol ...
... waves slow down because of the presence of some percentage of melt in the mantle peridotites (Green et al., ; Hirschmann, ; Anderson, ; Schmerr, ). This layer, named LVZ (Low Velocity Zone), is at the base of the lithosphere, and at the top of the asthenosphere. It is the basic decol ...
How The Earth Was Made: YELLOWSTONE
... 12. Describe evidence from California that indicated to scientists when Yellowstone last erupted. 13. How many earthquakes occur in Yellowstone each year? 14. What’s happening under the ground to cause so many earthquakes in Yellowstone? 15. What is the name of the structure under Yellowstone? 16. Y ...
... 12. Describe evidence from California that indicated to scientists when Yellowstone last erupted. 13. How many earthquakes occur in Yellowstone each year? 14. What’s happening under the ground to cause so many earthquakes in Yellowstone? 15. What is the name of the structure under Yellowstone? 16. Y ...
What are Tectonic Plates?
... 16 points in the Southern Alps that exceed 3,000 metres in height, excluding the tallest point at 3,724 metres also known as Mount Cook. ...
... 16 points in the Southern Alps that exceed 3,000 metres in height, excluding the tallest point at 3,724 metres also known as Mount Cook. ...
Folded Mountain Range
... Folded mountain ranges are the largest and most complex type of mountains found on continents. Most of these mountains consist of roughly parallel ridges of sedimentary rock. The energy needed to shape thousands of meters of sedimentary rock layers into folded mountains comes from the movements of E ...
... Folded mountain ranges are the largest and most complex type of mountains found on continents. Most of these mountains consist of roughly parallel ridges of sedimentary rock. The energy needed to shape thousands of meters of sedimentary rock layers into folded mountains comes from the movements of E ...
Study Questions Life Science 9 Weeks Test Chapter 1 Lesson 1 1
... A scientist’s work can cause a controversy, or a public disagreement between people. Galen was a physician to the Gladiators during ancient Roman times. He’s literature on the human anatomy was fundamentally wrong because he only studied animals. Many years later scientist began to write literature ...
... A scientist’s work can cause a controversy, or a public disagreement between people. Galen was a physician to the Gladiators during ancient Roman times. He’s literature on the human anatomy was fundamentally wrong because he only studied animals. Many years later scientist began to write literature ...
File - Ms. D. Science CGPA
... washcloth + water(wet cloth)= washcloth’s density increases Higher density of washcloth= washcloth heavier(denser)= sinks Read 3rd P. Changes in density ...
... washcloth + water(wet cloth)= washcloth’s density increases Higher density of washcloth= washcloth heavier(denser)= sinks Read 3rd P. Changes in density ...
PLATE BOUNDARIES LAB - Science with Ms. Crownhart
... topography what direction did this volcano erupt in March 18th 1980? __________________________________ 23. What Plate is the island of Madagascar part of? ______________________________ 24. How many miles long is Madagascar from top to bottom (use ruler)?___________________________ 25. Is the State ...
... topography what direction did this volcano erupt in March 18th 1980? __________________________________ 23. What Plate is the island of Madagascar part of? ______________________________ 24. How many miles long is Madagascar from top to bottom (use ruler)?___________________________ 25. Is the State ...
The Earth
... • Has largest satellite (moon) compared to its own diameter; the Moon helps to keep the Earth’s tilt stable. • Abundant water in the atmosphere. • At the right distance from the Sun to have liquid water. • Only planet in the solar system to have open oceans. Because water can dissolve CO2, the Earth ...
... • Has largest satellite (moon) compared to its own diameter; the Moon helps to keep the Earth’s tilt stable. • Abundant water in the atmosphere. • At the right distance from the Sun to have liquid water. • Only planet in the solar system to have open oceans. Because water can dissolve CO2, the Earth ...
Plates converge or scrape past each other.
... world’s largest mountains appear along continentcontinent boundaries. For instance, the European Alps, shown in the photograph at right, are found where the African and European plates are colliding. The tallest mountains in the world, the Himalayas, first formed when the Indian Plate began collidin ...
... world’s largest mountains appear along continentcontinent boundaries. For instance, the European Alps, shown in the photograph at right, are found where the African and European plates are colliding. The tallest mountains in the world, the Himalayas, first formed when the Indian Plate began collidin ...
Plates converge or scrape past each other.
... world’s largest mountains appear along continentcontinent boundaries. For instance, the European Alps, shown in the photograph at right, are found where the African and European plates are colliding. The tallest mountains in the world, the Himalayas, first formed when the Indian Plate began collidin ...
... world’s largest mountains appear along continentcontinent boundaries. For instance, the European Alps, shown in the photograph at right, are found where the African and European plates are colliding. The tallest mountains in the world, the Himalayas, first formed when the Indian Plate began collidin ...
8-Plate_Tectonics short
... Plate Tectonic Boundaries - Convergent If all ocean lithosphere is subducted, there is continent/continent collision; continents can't subduct (~low density), creating tremendous mountain range (and major + minor EQs) but no volcanoes (e.g., Himalayas). ...
... Plate Tectonic Boundaries - Convergent If all ocean lithosphere is subducted, there is continent/continent collision; continents can't subduct (~low density), creating tremendous mountain range (and major + minor EQs) but no volcanoes (e.g., Himalayas). ...
GEOL 1e Lecture Outlines
... • A few peaks up to 1 km • Flatness from sediment deposition that covers topography • Not found near active margins: sediments are trapped in oceanic trenches ...
... • A few peaks up to 1 km • Flatness from sediment deposition that covers topography • Not found near active margins: sediments are trapped in oceanic trenches ...
Plate Boundaries
... Content Check-Up 9) The Marianas Trench is formed by a A. divergent boundary. B. collisional boundary. C. plate is subducting under the North American Plate. D. transform boundary. E. convergent boundary ...
... Content Check-Up 9) The Marianas Trench is formed by a A. divergent boundary. B. collisional boundary. C. plate is subducting under the North American Plate. D. transform boundary. E. convergent boundary ...
Plate Margins
... Subduction zone: describes the whole area where subduction is taking place. Ocean Trench: is the deep valley formed in the ocean floor as the subducted plate bends. Benioff zone: zone of earthquakes set off by the solid lithospheric plate forcing it’s way through the mantle. Island Arc: An arc of is ...
... Subduction zone: describes the whole area where subduction is taking place. Ocean Trench: is the deep valley formed in the ocean floor as the subducted plate bends. Benioff zone: zone of earthquakes set off by the solid lithospheric plate forcing it’s way through the mantle. Island Arc: An arc of is ...
Ride The Convection Currents
... _______________________ is the source for convection currents in the earth. Hot columns of magma are heated by the core making them less dense. This material rises slowly through the __________________________, the upper part of the earth’s mantle. At the top of the asthenosphere, the hot material s ...
... _______________________ is the source for convection currents in the earth. Hot columns of magma are heated by the core making them less dense. This material rises slowly through the __________________________, the upper part of the earth’s mantle. At the top of the asthenosphere, the hot material s ...
No Slide Title - Brookville Local Schools
... O-C Convergent - Volcanic Arc, Trench, Earthquakes O-O Convergent - Island Arc, Trench, Earthquakes C-C Divergent - Rift Valley, Earthquakes O-O Divergent - Mid-Ocean Ridge, Volcanoes, Earthquakes Transform - Earthquakes, Faults ...
... O-C Convergent - Volcanic Arc, Trench, Earthquakes O-O Convergent - Island Arc, Trench, Earthquakes C-C Divergent - Rift Valley, Earthquakes O-O Divergent - Mid-Ocean Ridge, Volcanoes, Earthquakes Transform - Earthquakes, Faults ...
Chapter 2 Lesson 3 How Do Movements Of The Earth`s Crust
... Using the information in the text below, estimate how many times stronger the 1964 Alaska earthquake was than the 1976 China earthquake. ...
... Using the information in the text below, estimate how many times stronger the 1964 Alaska earthquake was than the 1976 China earthquake. ...
Plate Tectonics Lab - New York Science Teacher
... and learn about the three types of plate boundaries and answer the questions below. 1. What are the three types of plate boundaries? ...
... and learn about the three types of plate boundaries and answer the questions below. 1. What are the three types of plate boundaries? ...
CHAPTER 11 Deformation of Crust
... relative to footwall; compression is the force. Occurs at convergent/collision boundaries. Special type of fault, _____________________, has a low angle or nearly horizontal fault plane. _____________________: rock on either side of fault plane slides horizontally; occurs at transform boundaries ...
... relative to footwall; compression is the force. Occurs at convergent/collision boundaries. Special type of fault, _____________________, has a low angle or nearly horizontal fault plane. _____________________: rock on either side of fault plane slides horizontally; occurs at transform boundaries ...
Cool Whip and Graham Cracker Tectonics
... the asthenosphere, which is what we call the mantle layer of the earth. This movement forces magma up in between the two crustal plates. These divergent plate boundaries are found on the ocean floor. An example of a divergent plate boundary is the mid-Atlantic ridge. Plate #2: When the action happen ...
... the asthenosphere, which is what we call the mantle layer of the earth. This movement forces magma up in between the two crustal plates. These divergent plate boundaries are found on the ocean floor. An example of a divergent plate boundary is the mid-Atlantic ridge. Plate #2: When the action happen ...
Earth Science Final Exam Study Guide
... 41 – 44. Identify the features labeled in figure 7-1. Ch 8: Earthquakes 45. A zone of weakness or a break in Earth’s crust is known as what? 46. Where do most present-day faults occur? 47. A tectonic plate boundary where colliding plates slide past each other (such as the San Andreas fault in Califo ...
... 41 – 44. Identify the features labeled in figure 7-1. Ch 8: Earthquakes 45. A zone of weakness or a break in Earth’s crust is known as what? 46. Where do most present-day faults occur? 47. A tectonic plate boundary where colliding plates slide past each other (such as the San Andreas fault in Califo ...
Intro 1-2-3-4
... Understand the processes that are continuously changing Earth’s surface as lithospheric plates move relative to one another. Identify the role of oceanic ridges, transform faults and deep-sea trenches in defining the edges of lithospheric plates. Understand the importance of asthenospheric thermal c ...
... Understand the processes that are continuously changing Earth’s surface as lithospheric plates move relative to one another. Identify the role of oceanic ridges, transform faults and deep-sea trenches in defining the edges of lithospheric plates. Understand the importance of asthenospheric thermal c ...
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.