Ch 17 Plate Tectonics
... 1. ________________in the aesthenosphere is thought to cause the plate movements A. Aesthenosphere is a ____________________________ of the mantle that ________ & allows the plates to move B. Hot mantle material is less dense & rises, as it cools it sinks again 2. Rising part of current occurs at __ ...
... 1. ________________in the aesthenosphere is thought to cause the plate movements A. Aesthenosphere is a ____________________________ of the mantle that ________ & allows the plates to move B. Hot mantle material is less dense & rises, as it cools it sinks again 2. Rising part of current occurs at __ ...
Unit 3: Plate Tectonics: Test Review
... 7. How did it prove the existence of Pangaea? The continents which are now in cooler climates, could not have supported the growth of Glossopteris proving the continents must have been in a warmer climate at one time. Plate Tectonics 8. In which layer of the Earth is magma formed? Mantle 9. Which la ...
... 7. How did it prove the existence of Pangaea? The continents which are now in cooler climates, could not have supported the growth of Glossopteris proving the continents must have been in a warmer climate at one time. Plate Tectonics 8. In which layer of the Earth is magma formed? Mantle 9. Which la ...
Plate Tectonics PPT
... Plate Tectonics • The theory explaining how the movements of earth’s “TECTONIC PLATES” or “moving plates” create the geologic events like earthquakes, volcanoes and tsunamis. • Lithospheric Plates- giant puzzle pieces connecting on the surface of earth. – These sit on top of mantle so they can move ...
... Plate Tectonics • The theory explaining how the movements of earth’s “TECTONIC PLATES” or “moving plates” create the geologic events like earthquakes, volcanoes and tsunamis. • Lithospheric Plates- giant puzzle pieces connecting on the surface of earth. – These sit on top of mantle so they can move ...
The LAB beneath the world oldest oceanic plate
... Universität Wien, Institut für Meteorologie und Geophysik, 1090 Wien, Austria ...
... Universität Wien, Institut für Meteorologie und Geophysik, 1090 Wien, Austria ...
Plate Tectonic Notes
... TRANSFORM PLATE BOUNDARY •This boundary ______________________________________ where two plates slide past each other. _______________________ occur frequently at these boundaries. •The plates can move in same direction but at different rates. ______________________________ shallow trenches are comm ...
... TRANSFORM PLATE BOUNDARY •This boundary ______________________________________ where two plates slide past each other. _______________________ occur frequently at these boundaries. •The plates can move in same direction but at different rates. ______________________________ shallow trenches are comm ...
Review sheet – Oceanography – first midterm
... 1. What is the relationship of the various features of the continental margin to the transition from continental crust to oceanic crust? 2. How can we observe what the surface of the ocean floor looks like when it is so deep? 3. What is the typical depth of the ocean floor? 4. What is the difference ...
... 1. What is the relationship of the various features of the continental margin to the transition from continental crust to oceanic crust? 2. How can we observe what the surface of the ocean floor looks like when it is so deep? 3. What is the typical depth of the ocean floor? 4. What is the difference ...
Plate Tectonics Vocab
... The amount of mass of a substance in a given volume (Density = mass/volume) Denser sinks, less dense floats/rises ...
... The amount of mass of a substance in a given volume (Density = mass/volume) Denser sinks, less dense floats/rises ...
Plate Tectonics Vocabulary Terms
... destructive plate boundary (because of subduction), is an actively deforming region where two (or more) tectonic plates or fragments of lithosphere move toward one another and collide. As a result of pressure, friction, and plate material melting in the mantle, earthquakes and volcanoes are common n ...
... destructive plate boundary (because of subduction), is an actively deforming region where two (or more) tectonic plates or fragments of lithosphere move toward one another and collide. As a result of pressure, friction, and plate material melting in the mantle, earthquakes and volcanoes are common n ...
Continental Drift and Plate Tectonics Part 1 Multiple Choice
... 1. The existence of coal beds in Antarctica indicates that the continent once had ____. a. been part of Africa c. a cold, dry climate b. a temperate, rainy climate d. been farther from the equator ...
... 1. The existence of coal beds in Antarctica indicates that the continent once had ____. a. been part of Africa c. a cold, dry climate b. a temperate, rainy climate d. been farther from the equator ...
Word format
... The reason these mountains match up was because North America, Eurasia and Africa used to be joined together before 750 million years ago as a supercontinent called: _________________________ This supercontinent preceded Pangea, which came much later in Earth’s history. Around 750 million years ago, ...
... The reason these mountains match up was because North America, Eurasia and Africa used to be joined together before 750 million years ago as a supercontinent called: _________________________ This supercontinent preceded Pangea, which came much later in Earth’s history. Around 750 million years ago, ...
25. Mountain Ranges and the Construction of Continents p. 379-397
... The reason these mountains match up was because North America, Eurasia and Africa used to be joined together before 750 million years ago as a supercontinent called: _________________________ This supercontinent preceded Pangea, which came much later in Earth’s history. Around 750 million years ago, ...
... The reason these mountains match up was because North America, Eurasia and Africa used to be joined together before 750 million years ago as a supercontinent called: _________________________ This supercontinent preceded Pangea, which came much later in Earth’s history. Around 750 million years ago, ...
File
... ___Crust is always being created and destroyed. Divergent boundaries allow magma to break through and cool forming new crust/lithosphere and convergent boundaries is where old crust is destroyed because the crust collides and subducts into the mantle where it is melted down Where do convection curre ...
... ___Crust is always being created and destroyed. Divergent boundaries allow magma to break through and cool forming new crust/lithosphere and convergent boundaries is where old crust is destroyed because the crust collides and subducts into the mantle where it is melted down Where do convection curre ...
Week 21: Plate Tectonics
... e. Hot Spots are locations of rising magma that is independent of the mantle convection cells. Yellowstone and Hawaii are Hot Spots. ...
... e. Hot Spots are locations of rising magma that is independent of the mantle convection cells. Yellowstone and Hawaii are Hot Spots. ...
plate tectonics brochure - University of Southern California
... associated with subduction is a trench that forms at the boundary where subduction occurs. During subduction, as the crust subducts, it becomes hot, melts, and then the magma rises up to the surface and creates volcanoes. An example of subduction is the Cascadia subduction zone, which is a feature o ...
... associated with subduction is a trench that forms at the boundary where subduction occurs. During subduction, as the crust subducts, it becomes hot, melts, and then the magma rises up to the surface and creates volcanoes. An example of subduction is the Cascadia subduction zone, which is a feature o ...
Earth Layers and PT study guide ANSWERS
... 300 million years ago Earth was one large landmass with all of the continents connected. This landmass is called Pangaea. ...
... 300 million years ago Earth was one large landmass with all of the continents connected. This landmass is called Pangaea. ...
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 ...
WHAT ARE THE CAUSES OF TECTONIC HAZARDS? 1 Structure of
... 1 Structure of the Earth Find/draw a labelled cross section through the earth showing the different layers (asthenosphere, etc) Find/draw a diagram and write a paragraph to show how convection currents work. 2 Theory of plate tectonics Write about Alfred Wegener’s idea of continental drift W ...
... 1 Structure of the Earth Find/draw a labelled cross section through the earth showing the different layers (asthenosphere, etc) Find/draw a diagram and write a paragraph to show how convection currents work. 2 Theory of plate tectonics Write about Alfred Wegener’s idea of continental drift W ...
Mechanisms of Plate Motion
... basic driving force for plate tectonics Convective Flow – the motion of matter resulting from convection The slow movements of the plates and mantle are driven by the unequal distribution of Earth’s heat from the radioactive decay elements ...
... basic driving force for plate tectonics Convective Flow – the motion of matter resulting from convection The slow movements of the plates and mantle are driven by the unequal distribution of Earth’s heat from the radioactive decay elements ...
Plate Tectonics
... that lived 270 million years ago • remains (fossils) found in South America and Africa • impossible for these reptiles to have crossed the Atlantic ...
... that lived 270 million years ago • remains (fossils) found in South America and Africa • impossible for these reptiles to have crossed the Atlantic ...
Plate Tectonics
... that lived 270 million years ago • remains (fossils) found in South America and Africa • impossible for these reptiles to have crossed the Atlantic ...
... that lived 270 million years ago • remains (fossils) found in South America and Africa • impossible for these reptiles to have crossed the Atlantic ...
Japan * Tectonic Case Study
... • Earthquakes are triggered as the plates move against each other creating shock waves which are felt on the surface. ...
... • Earthquakes are triggered as the plates move against each other creating shock waves which are felt on the surface. ...
Alaska
... the Yakutat terrane is largely responsible for the tectonic and earthquake activity to Fairbanks ...
... the Yakutat terrane is largely responsible for the tectonic and earthquake activity to Fairbanks ...
Earth and Space Science Semester 2 Exam Review Part 1
... Discovery of mid-ocean ridges and changes in the magnetic striping of rocks at mid-ocean ridges. Trenches followed by subduction zones, mountains and volcanoes. Plant and animal fossils. Glaciation marks or scars. Fracture zones. Similarities of distant mountain ranges. Similarities of plant and ani ...
... Discovery of mid-ocean ridges and changes in the magnetic striping of rocks at mid-ocean ridges. Trenches followed by subduction zones, mountains and volcanoes. Plant and animal fossils. Glaciation marks or scars. Fracture zones. Similarities of distant mountain ranges. Similarities of plant and ani ...
Oceanic trench
The oceanic trenches are hemispheric-scale long but narrow topographic depressions of the sea floor. They are also the deepest parts of the ocean floor. Oceanic trenches are a distinctive morphological feature of convergent plate boundaries, along which lithospheric plates move towards each other at rates that vary from a few mm to over ten cm per year. A trench marks the position at which the flexed, subducting slab begins to descend beneath another lithospheric slab. Trenches are generally parallel to a volcanic island arc, and about 200 km (120 mi) from a volcanic arc. Oceanic trenches typically extend 3 to 4 km (1.9 to 2.5 mi) below the level of the surrounding oceanic floor. The greatest ocean depth to be sounded is in the Challenger Deep of the Mariana Trench, at a depth of 11,034 m (36,201 ft) below sea level. Oceanic lithosphere moves into trenches at a global rate of about 3 km2/yr.