Plate Tectonics Section 1 Sea-Floor Spreading
... land. The reversals in land rocks also matched the geomagnetic reversal time scale. • Because the same pattern appears in rocks of the same ages on both land and the sea floor, scientists agreed that the magnetic patterns showed change over time. • The idea of sea-floor spreading provides a way for ...
... land. The reversals in land rocks also matched the geomagnetic reversal time scale. • Because the same pattern appears in rocks of the same ages on both land and the sea floor, scientists agreed that the magnetic patterns showed change over time. • The idea of sea-floor spreading provides a way for ...
Lesson 10 - Rift Volcanism
... The greatest volume of volcanic rock is produced within oceanic ridges where seafloor spreading is active. Example; along the Mid Atlantic Ridge. Shield volcanoes are formed along ridges when basaltic lava flows on the ocean floor. In some case these volcanoes can rise above sea level and form a ...
... The greatest volume of volcanic rock is produced within oceanic ridges where seafloor spreading is active. Example; along the Mid Atlantic Ridge. Shield volcanoes are formed along ridges when basaltic lava flows on the ocean floor. In some case these volcanoes can rise above sea level and form a ...
Ch 7 study guide answers
... where plates are separating. The magma is pushing up through the plate boundary causing the plates to move away from each other. The youngest rock is found at the mid-ocean ridge. The rock get older as you move away from the mid ocean ridge. 7. What are subduction zones and at what type of boundary ...
... where plates are separating. The magma is pushing up through the plate boundary causing the plates to move away from each other. The youngest rock is found at the mid-ocean ridge. The rock get older as you move away from the mid ocean ridge. 7. What are subduction zones and at what type of boundary ...
Minerals, Rocks, Plate Tectonics Review
... d. Weathering and erosion 16. Some magma hardens, and then it is exposed to intense heat and pressure. What does this process create? a. Sediment b. Igneous rock c. Sedimentary rock d. Metamorphic rock 17. A volcanic eruption occurs. Magma rises up the volcano’s vents and soon reaches the surface. W ...
... d. Weathering and erosion 16. Some magma hardens, and then it is exposed to intense heat and pressure. What does this process create? a. Sediment b. Igneous rock c. Sedimentary rock d. Metamorphic rock 17. A volcanic eruption occurs. Magma rises up the volcano’s vents and soon reaches the surface. W ...
Material includes all lectures (including the first Anthropocene
... Figure 2.16—don’t memorize—be able to discuss why plates/continents move and the time scale over which this is occurring Figure 2.17—driving forces of plates… Figure 2.18—mantle convection—what each hypothesis tells us about “recycling” Figure 2.19- mantle plume hypothesis—in the context of plate mo ...
... Figure 2.16—don’t memorize—be able to discuss why plates/continents move and the time scale over which this is occurring Figure 2.17—driving forces of plates… Figure 2.18—mantle convection—what each hypothesis tells us about “recycling” Figure 2.19- mantle plume hypothesis—in the context of plate mo ...
Earth Layers - Cobb Learning
... • B)OCEANIC CRUST=MORE DENSE, SINKS UNDER CONTINENTAL CRUST=BASALT • C) LESS THAN 1% EARTH’S MASS • D) COMPOSITIONAL LAYER=ALUMINUM, SILICON, OXYGEN ...
... • B)OCEANIC CRUST=MORE DENSE, SINKS UNDER CONTINENTAL CRUST=BASALT • C) LESS THAN 1% EARTH’S MASS • D) COMPOSITIONAL LAYER=ALUMINUM, SILICON, OXYGEN ...
Lesson 11 - Subduction Boundary Volcanism
... At trenches, ocean floor bends and moves downward into the upper mantle. At depths of 100 km partial melting of the ocean crust and mantle takes place. Basaltic and andesitic magmas are produced at subduction zones. After great quantities of magma are produced, the molten rock moves upward tow ...
... At trenches, ocean floor bends and moves downward into the upper mantle. At depths of 100 km partial melting of the ocean crust and mantle takes place. Basaltic and andesitic magmas are produced at subduction zones. After great quantities of magma are produced, the molten rock moves upward tow ...
Plate Tectonics
... The inner core, while still made out of iron and nickel, surprisingly is not liquid, even though the inner core is hotter. While it would make sense for this layer to be liquid because temperatures exceed its melting point, the pressure from all the layers above forces the molecules to remain so ...
... The inner core, while still made out of iron and nickel, surprisingly is not liquid, even though the inner core is hotter. While it would make sense for this layer to be liquid because temperatures exceed its melting point, the pressure from all the layers above forces the molecules to remain so ...
Textbook Powerpoint
... of Earth is divided into plates, most of which are in constant motion. • Tectonic cycle The sum of the processes that build up and break down the lithosphere. • The theory of plate tectonics is a unifying theory in geology and earth sciences because it relates to so many aspects of the earth science ...
... of Earth is divided into plates, most of which are in constant motion. • Tectonic cycle The sum of the processes that build up and break down the lithosphere. • The theory of plate tectonics is a unifying theory in geology and earth sciences because it relates to so many aspects of the earth science ...
Spreading Ridge Axis, Divergent Plate Boundary Subduction Zone
... consequence of mantle convection, but this melting does not drive convection in any way. At subduction zones, water released from the subducting slab lowers the melting temperature of the mantle rocks inducing a small amount of melting. At spreading centers, rocks that were stable at high pressures ...
... consequence of mantle convection, but this melting does not drive convection in any way. At subduction zones, water released from the subducting slab lowers the melting temperature of the mantle rocks inducing a small amount of melting. At spreading centers, rocks that were stable at high pressures ...
Chapter 1—The Science of Historical Geology
... evaporated and was refilled several million years ago. This event would have had a profound effect upon the plant and animal species of the area, both on land nearby and in the Mediterranean Sea. As this happened over a long time, some species may have been able to adapt or change to the changing co ...
... evaporated and was refilled several million years ago. This event would have had a profound effect upon the plant and animal species of the area, both on land nearby and in the Mediterranean Sea. As this happened over a long time, some species may have been able to adapt or change to the changing co ...
10.2: Volcanoes form as molten rock erupts
... and other rock fragments that pile up around a single crater Form as gas-rich magma erupts Escaping gases throw small chunks of lava into the air, where they ...
... and other rock fragments that pile up around a single crater Form as gas-rich magma erupts Escaping gases throw small chunks of lava into the air, where they ...
Theory of Plate Tectonics Cornell Notes Answers
... The Earth’s lithosphere is not solid, but actually cracked into approx. 12 pieces that cover the globe carrying the continents or parts of the ocean floor, or both. These pieces are called plates. Geological theory that states that the pieces of the Earth’s lithosphere are in constant, slow motion d ...
... The Earth’s lithosphere is not solid, but actually cracked into approx. 12 pieces that cover the globe carrying the continents or parts of the ocean floor, or both. These pieces are called plates. Geological theory that states that the pieces of the Earth’s lithosphere are in constant, slow motion d ...
Constructive and Destructive Forces Notes and Activities
... naturally weaker than others, while others are more resistant (stronger). ...
... naturally weaker than others, while others are more resistant (stronger). ...
Chapter 11: The rise of oxygen and ozone – ppt
... isotopes – same number of protons and electrons, different number of neutrons. Affects the atomic weight, but not the electrons, and therefore not the types of chemical reactions it undergoes. Oxidation states – associated with the number of electrons either given or taken in a chemical bond. Oxygen ...
... isotopes – same number of protons and electrons, different number of neutrons. Affects the atomic weight, but not the electrons, and therefore not the types of chemical reactions it undergoes. Oxidation states – associated with the number of electrons either given or taken in a chemical bond. Oxygen ...
Curriculum Map - Grade 09-12
... A3. Name six types of nonsilicate minerals A4. Distinguish among six main arrangements of silicon-oxygen tetrahedra found in silicate minerals A5. Describe some characteristics that help distinguish one mineral from another A6. List four special properties that may help identify certain minerals B. ...
... A3. Name six types of nonsilicate minerals A4. Distinguish among six main arrangements of silicon-oxygen tetrahedra found in silicate minerals A5. Describe some characteristics that help distinguish one mineral from another A6. List four special properties that may help identify certain minerals B. ...
Ch. 11 Earthquakes
... Richter scale – measures the ground motion from an earthquake to find its strength. Moment magnitude is a measurement of a quakes strength based on size of area the fault moves, the average distance that the fault blocks move, and the rigidity of the rocks in the fault zone. Mercalli scale – express ...
... Richter scale – measures the ground motion from an earthquake to find its strength. Moment magnitude is a measurement of a quakes strength based on size of area the fault moves, the average distance that the fault blocks move, and the rigidity of the rocks in the fault zone. Mercalli scale – express ...
final study guide answer key
... 20. TRENCHES are the deepest features in the ocean floor, and they exist at SUBDUCTION zones (CONVERGENT boundaries). The deepest spot in the ocean, called the CHALLENGER Deep, is in the MARIANAS Trench south of JAPAN. It is about 37,000 ft deep...almost 7 miles! 21. Underwater volcanic mountains a ...
... 20. TRENCHES are the deepest features in the ocean floor, and they exist at SUBDUCTION zones (CONVERGENT boundaries). The deepest spot in the ocean, called the CHALLENGER Deep, is in the MARIANAS Trench south of JAPAN. It is about 37,000 ft deep...almost 7 miles! 21. Underwater volcanic mountains a ...
Theory of Plate Tectonics Cornell Notes
... The Earth’s lithosphere is not solid, but actually cracked into approx. 12 pieces that cover the globe carrying the continents or parts of the ocean floor, or both. These pieces are called plates. Geological theory that states that the pieces of the Earth’s lithosphere are in constant, slow motion d ...
... The Earth’s lithosphere is not solid, but actually cracked into approx. 12 pieces that cover the globe carrying the continents or parts of the ocean floor, or both. These pieces are called plates. Geological theory that states that the pieces of the Earth’s lithosphere are in constant, slow motion d ...
7044
... Introduction: It is generally believed that growth of continental crust has occurred through either or both of two mechanisms: volcanic arc accretion [1] and oceanic plateau accretion [2–4]—but have the relative contributions of these two mechanisms varied with time? Although the former is a model o ...
... Introduction: It is generally believed that growth of continental crust has occurred through either or both of two mechanisms: volcanic arc accretion [1] and oceanic plateau accretion [2–4]—but have the relative contributions of these two mechanisms varied with time? Although the former is a model o ...
Chapter 18 Section One
... As scientists studied Earth’s surface, they discovered that the lithosphere does not form a continuous shell around Earth. Instead, they found that the lithosphere is broken into many large and small slabs of rock called tectonic plates (tehk-TAHN-ihk). Scientists do not know exactly how or when in ...
... As scientists studied Earth’s surface, they discovered that the lithosphere does not form a continuous shell around Earth. Instead, they found that the lithosphere is broken into many large and small slabs of rock called tectonic plates (tehk-TAHN-ihk). Scientists do not know exactly how or when in ...