Study guide: exam #1
... Cascade Range and associated subduction zone San Andreas Fault Mexico, Central America, and South America subduction zones Lesser Antilles Iceland Haiti Yellowstone Long Valley Caldera o Hot spots: oceanic versus continental o Avoid information about specific earthquakes o Understand the s ...
... Cascade Range and associated subduction zone San Andreas Fault Mexico, Central America, and South America subduction zones Lesser Antilles Iceland Haiti Yellowstone Long Valley Caldera o Hot spots: oceanic versus continental o Avoid information about specific earthquakes o Understand the s ...
Document
... 2. The hypothesis that continents can drift apart and have done so in the past is known as .______________________ 3. The ______________________ is the soft layer of the mantle on which the tectonic plates move. 4. ______________________ is stress that occurs when forces act to stretch anobject. 5. ...
... 2. The hypothesis that continents can drift apart and have done so in the past is known as .______________________ 3. The ______________________ is the soft layer of the mantle on which the tectonic plates move. 4. ______________________ is stress that occurs when forces act to stretch anobject. 5. ...
Snack Tectonics - Doral Academy Preparatory
... 1. What type of crust is represented by the graham crackers? 2. What type of crust is represented by the fruit roll-up? 3. What physical layer of the earth does the frosting represent? 4. Give one real –life example of each type of plate boundary: (geographic location and how it was formed) • Contin ...
... 1. What type of crust is represented by the graham crackers? 2. What type of crust is represented by the fruit roll-up? 3. What physical layer of the earth does the frosting represent? 4. Give one real –life example of each type of plate boundary: (geographic location and how it was formed) • Contin ...
Name
... Evidence of the Wegener’s Continental Drift Hypothesis and The Theory of Plate Tectonics The Theory of Plate Tectonics: 1. The Earth’s lithosphere is divided into tectonic plates that drift on the asthenosphere 2. The plates move by convection currents that either push the plates together, apart or ...
... Evidence of the Wegener’s Continental Drift Hypothesis and The Theory of Plate Tectonics The Theory of Plate Tectonics: 1. The Earth’s lithosphere is divided into tectonic plates that drift on the asthenosphere 2. The plates move by convection currents that either push the plates together, apart or ...
Convection
... Subduction at Trenches • Deep-ocean trench- underwater canyon where ocean crust sinks into the mantle. • Subduction- process by which ocean crust sinks beneath a deep-ocean trench and back into the mantle ...
... Subduction at Trenches • Deep-ocean trench- underwater canyon where ocean crust sinks into the mantle. • Subduction- process by which ocean crust sinks beneath a deep-ocean trench and back into the mantle ...
Science Project – October – OUR PLANET
... The inner core is solid due to extreme pressure and is composed of nickel and iron. ...
... The inner core is solid due to extreme pressure and is composed of nickel and iron. ...
Plate Tectonics PowerPoint
... Theory states – Earth’s crust and part of the upper mantle are broken into sections. These sections are called plates, and move on a plastic like layer of mantle. Similar to rafts on water. ...
... Theory states – Earth’s crust and part of the upper mantle are broken into sections. These sections are called plates, and move on a plastic like layer of mantle. Similar to rafts on water. ...
Cracking Up
... A and B are true B and D are true A and C are true A, B, and C are true A, B, C, and D are true ...
... A and B are true B and D are true A and C are true A, B, and C are true A, B, C, and D are true ...
Seafloor Spreading - Perry Local Schools
... 1950s inspired him to look back at his data from years before. • After much thought, he proposed in 1960 that the movement of the continents was a result of sea-floor spreading. In 1962, he added a geologic mechanism (seafloor spreading) to account for Wegener's moving continents. ...
... 1950s inspired him to look back at his data from years before. • After much thought, he proposed in 1960 that the movement of the continents was a result of sea-floor spreading. In 1962, he added a geologic mechanism (seafloor spreading) to account for Wegener's moving continents. ...
7-1 Inside the Earth RG
... crust does. 9. What element makes up most of the Earth’s core? _________________________________________________________________ 10. How much of the Earth’s mass is made up by the core? ...
... crust does. 9. What element makes up most of the Earth’s core? _________________________________________________________________ 10. How much of the Earth’s mass is made up by the core? ...
ESC101 Ch 4 Plate Tectonics
... – Movements/ interactions by which rocks are cycled from the mantle to the crust and back – Includes earthquakes, volcanism, and plate motion, driven by convection in the mantle – As a result, seafloor recycles itself every 200 million years ...
... – Movements/ interactions by which rocks are cycled from the mantle to the crust and back – Includes earthquakes, volcanism, and plate motion, driven by convection in the mantle – As a result, seafloor recycles itself every 200 million years ...
Chapter 13 Earth`s Interior and Tectonics
... 1) Silicates: the most common group >Based on the silica tetrahedron >Constitute 92% of the Earth’s crust 2) Nonsilicates(the main ones) a) Ores 1) Oxides 2) Sulfides b) Evaporites 1) Halides 2) Sulfates c) Carbonates >Most are soluble in water. The Classification of Rocks 1) Igneous Rocks a) Pluton ...
... 1) Silicates: the most common group >Based on the silica tetrahedron >Constitute 92% of the Earth’s crust 2) Nonsilicates(the main ones) a) Ores 1) Oxides 2) Sulfides b) Evaporites 1) Halides 2) Sulfates c) Carbonates >Most are soluble in water. The Classification of Rocks 1) Igneous Rocks a) Pluton ...
File
... Describe how magnetic rocks on the seafloor provide evidence for tectonic theory • Earth has a magnetic field • Polarity of field reverses every 100 million years • When new rock forms at plate boundary at the oceanic ridge, the rock cools and solidifies and magnetic minerals in the rock (magnetite ...
... Describe how magnetic rocks on the seafloor provide evidence for tectonic theory • Earth has a magnetic field • Polarity of field reverses every 100 million years • When new rock forms at plate boundary at the oceanic ridge, the rock cools and solidifies and magnetic minerals in the rock (magnetite ...
How Are Landforms Shaped
... The heat of the earth's interior creates convection currents in the mantle. These convection currents sometimes cause the magma in the mantle to break through the crust of the Earth as lava and volcanic ash. At other times, moving magma may cause the plates to separate or collide at their boundaries ...
... The heat of the earth's interior creates convection currents in the mantle. These convection currents sometimes cause the magma in the mantle to break through the crust of the Earth as lava and volcanic ash. At other times, moving magma may cause the plates to separate or collide at their boundaries ...
Plate Tectonic Vocabulary
... several continents. Rifting: The process by which magma rises to fill the gap between two plates that are moving apart. Rifting in eastern Africa may split the continent into two parts. Geothermal energy: Energy derived from the heat of Earth’s interior. Magma: The hot, molten rock deep inside Earth ...
... several continents. Rifting: The process by which magma rises to fill the gap between two plates that are moving apart. Rifting in eastern Africa may split the continent into two parts. Geothermal energy: Energy derived from the heat of Earth’s interior. Magma: The hot, molten rock deep inside Earth ...
Earth Science - California Lutheran University
... Harry Hess, a Captain during WWII, gathered data while cruising from battle to battle ...
... Harry Hess, a Captain during WWII, gathered data while cruising from battle to battle ...
Study Guide Answers
... Convergent boundaries, at subduction zones. Volcanoes are formed from the magma of a destroyed plate Moh’s scale measures hardness, and helps us determine what minerals will scratch other minerals. ...
... Convergent boundaries, at subduction zones. Volcanoes are formed from the magma of a destroyed plate Moh’s scale measures hardness, and helps us determine what minerals will scratch other minerals. ...
Ch 17 Plate Tectonics
... 2. Discuss evidence of continental drift. 3. Explain why continental drift was not accepted when it was first proposed. 4. Summarize the evidence that led to the discovery of seafloor spreading. 5. Describe the uses of magnometers and sonar. 6. Explain the significance of magnetic patterns on the se ...
... 2. Discuss evidence of continental drift. 3. Explain why continental drift was not accepted when it was first proposed. 4. Summarize the evidence that led to the discovery of seafloor spreading. 5. Describe the uses of magnometers and sonar. 6. Explain the significance of magnetic patterns on the se ...
Plate Tectonics
... The continents are embedded in lithospheric plates. As these plates move, they carry the continents with them. The ocean basins are part of lithospheric plates as well. ...
... The continents are embedded in lithospheric plates. As these plates move, they carry the continents with them. The ocean basins are part of lithospheric plates as well. ...
Plate Tectonics Test
... Part III: Short Answer—Answer the following questions with a word, phrase, or sentence. Make sure that you answer the question completely. (4 points each) 13. Earthquakes and volcanoes occur all over the world. However, most of them occur along_____________________. 14. Explain how scientists measu ...
... Part III: Short Answer—Answer the following questions with a word, phrase, or sentence. Make sure that you answer the question completely. (4 points each) 13. Earthquakes and volcanoes occur all over the world. However, most of them occur along_____________________. 14. Explain how scientists measu ...
Review Sheet for Test
... 7.) Be able to define the theory of plate tectonics, and the three possible causes of plate tectonic motion. The theory of plate tectonics is the theory that Earth’s lithosphere is divided into tectonic plates that move around on top of the asthenosphere. Three possible causes of plate motion ( 110- ...
... 7.) Be able to define the theory of plate tectonics, and the three possible causes of plate tectonic motion. The theory of plate tectonics is the theory that Earth’s lithosphere is divided into tectonic plates that move around on top of the asthenosphere. Three possible causes of plate motion ( 110- ...
Geography Lesson Tectonics Tuesday * The largest earthquakes
... vi. Andesitic volcanoes (Andes Mountains) which are also composite volcanoes. ...
... vi. Andesitic volcanoes (Andes Mountains) which are also composite volcanoes. ...
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.