Plate Tectonics
... 1. An ocean floor plate collides with a less dense continental plate. 2. An ocean floor plate collides with another ocean floor plate. 3. A continental plate collides with another continental plate. ...
... 1. An ocean floor plate collides with a less dense continental plate. 2. An ocean floor plate collides with another ocean floor plate. 3. A continental plate collides with another continental plate. ...
Slide 1
... When continental plates meet continental plates neither can subduct the other because they both have the same density. The plates are being forced together at great pressure so the rocks crumble together and form massive mountain chains like the Himalayas. The Himalayas are still growing today as th ...
... When continental plates meet continental plates neither can subduct the other because they both have the same density. The plates are being forced together at great pressure so the rocks crumble together and form massive mountain chains like the Himalayas. The Himalayas are still growing today as th ...
CHAPTER 3CPLATE TECTONICS
... continent-continent convergence, the margins of the colliding plates are crumpled, thickened, and deformed. In ocean-ocean convergence and in ocean-continent convergence, the leading edge of one plate is pushed (subducted) under the other and into the asthenosphere, resulting in a subduction zone. ( ...
... continent-continent convergence, the margins of the colliding plates are crumpled, thickened, and deformed. In ocean-ocean convergence and in ocean-continent convergence, the leading edge of one plate is pushed (subducted) under the other and into the asthenosphere, resulting in a subduction zone. ( ...
9-28 Plate Tectonics1.notebook
... about the phases of the moon. You want to know if there is any correlation between the time of moonrise and the current phase of the moon. You will use information from the local newspaper to get your data. Which of the following tools is going to be of the most use to you in your investigation? ...
... about the phases of the moon. You want to know if there is any correlation between the time of moonrise and the current phase of the moon. You will use information from the local newspaper to get your data. Which of the following tools is going to be of the most use to you in your investigation? ...
Plate and Pangaea Powerpoint
... Less dense than the mantle, this is why it floats. Contains continental crust 20km – 70km and oceanic crust 5km – 10km. • Also known as the lithosphere. ...
... Less dense than the mantle, this is why it floats. Contains continental crust 20km – 70km and oceanic crust 5km – 10km. • Also known as the lithosphere. ...
Plate Tectonics - Open Earth Systems
... • Pockets of magma develop and rise. • Continental volcanic arcs form in part by volcanic activity caused by the subduction of oceanic lithosphere beneath a continent. ...
... • Pockets of magma develop and rise. • Continental volcanic arcs form in part by volcanic activity caused by the subduction of oceanic lithosphere beneath a continent. ...
Sea floor spreading= the process by which new oceanic crust is
... place to go. It is forced upwards and forms volcanoes and mountain ranges fairly close to the shore. Won’t we eventually run out of crust you may ask? Well, at the mid-ocean ridge, new crust is being formed through the process of sea-floor spreading. Mantle convection causes new hot rock to be force ...
... place to go. It is forced upwards and forms volcanoes and mountain ranges fairly close to the shore. Won’t we eventually run out of crust you may ask? Well, at the mid-ocean ridge, new crust is being formed through the process of sea-floor spreading. Mantle convection causes new hot rock to be force ...
View PDF - Goldschmidt Conference Archive
... Plate subduction is an important mechanism for exchanging the mass and energy between the mantle and the crust, and igneous rocks above subduction zones are an important carrier to investigate the recycling of crustal materials and the crust-mantle interaction. This study presents a synthesis of geo ...
... Plate subduction is an important mechanism for exchanging the mass and energy between the mantle and the crust, and igneous rocks above subduction zones are an important carrier to investigate the recycling of crustal materials and the crust-mantle interaction. This study presents a synthesis of geo ...
7 The coastline and the Tasman Sea
... movement had been happening since 516 million years ago (Mya), in the midCambrian period), a remarkable span of 417 million years. During this time the eastern edge of continental “Australia” stepped outward from just east of Adelaide by fits and starts at an average rate of 3mm per year. This conti ...
... movement had been happening since 516 million years ago (Mya), in the midCambrian period), a remarkable span of 417 million years. During this time the eastern edge of continental “Australia” stepped outward from just east of Adelaide by fits and starts at an average rate of 3mm per year. This conti ...
Lab 2
... Indian Ocean. The cooler colors represent denser (cooler) rocks and the hotter colors represent less dense (hotter) rocks. (O) What is the evidence for the mid-Atlantic ridge being an area with hot rocks (and would therefore confirm the heat flow map)? ...
... Indian Ocean. The cooler colors represent denser (cooler) rocks and the hotter colors represent less dense (hotter) rocks. (O) What is the evidence for the mid-Atlantic ridge being an area with hot rocks (and would therefore confirm the heat flow map)? ...
Homework 5: Buoyancy Introduction The buoyancy of plates is a
... The buoyancy of plates is a relatively simple concept, but it turns out to be very important to understanding some fundamental things about plate tectonics. Why does subduction occur? The answer is because a plate becomes negatively buoyant as the mantle part of the plate cools and becomes denser. T ...
... The buoyancy of plates is a relatively simple concept, but it turns out to be very important to understanding some fundamental things about plate tectonics. Why does subduction occur? The answer is because a plate becomes negatively buoyant as the mantle part of the plate cools and becomes denser. T ...
File
... 15. Which of the following is NOT true regarding tsunamis? a. Tsunamis gain height as the drag on the shallow bottom of the coast b. They usually occur in the Pacific Ocean c. They can be caused by underwater earthquakes d. Tsunamis start as giant waves in the open ocean that are much taller than r ...
... 15. Which of the following is NOT true regarding tsunamis? a. Tsunamis gain height as the drag on the shallow bottom of the coast b. They usually occur in the Pacific Ocean c. They can be caused by underwater earthquakes d. Tsunamis start as giant waves in the open ocean that are much taller than r ...
plate tectonics study guide
... drift gained renewed interest and, when combined with sea-floor spreading, led to the theory of plate tectonics. ...
... drift gained renewed interest and, when combined with sea-floor spreading, led to the theory of plate tectonics. ...
Theory of Plate Tectonics
... • Earth’s tectonic plates are constantly moving • Using sensors embedded in Earth’s plates and using satellites we know that they move at a rate of about 1-15 cm per year depending on the plate • The following map shows in which direction the different plates are moving ...
... • Earth’s tectonic plates are constantly moving • Using sensors embedded in Earth’s plates and using satellites we know that they move at a rate of about 1-15 cm per year depending on the plate • The following map shows in which direction the different plates are moving ...
Slab window geometry presentation pdf
... material produced at the center can no longer form new lithosphere, resulting in a slab-free zone, or slab window. ...
... material produced at the center can no longer form new lithosphere, resulting in a slab-free zone, or slab window. ...
Chapter 3 Test Review
... A. a convergent boundary B. a strike-slip boundary C. a transform boundary D. a divergent boundary ...
... A. a convergent boundary B. a strike-slip boundary C. a transform boundary D. a divergent boundary ...
Science: Directed Reading Study Guide
... 2. Along boundaries, plates can _______________, __________________, or ____________ _____________ each other. Earthquakes result in all three of these cases. The ________________ of boundary depends on how the plates ________________ relative to each other. 3. When two plates collide, a ___________ ...
... 2. Along boundaries, plates can _______________, __________________, or ____________ _____________ each other. Earthquakes result in all three of these cases. The ________________ of boundary depends on how the plates ________________ relative to each other. 3. When two plates collide, a ___________ ...
Handout 2-1.b, c, and d Name: Period
... The diagram below shows the interior layers of Earth. The layers in the diagram are representative of arrangement and are not drawn to scale. Use this diagram to match the layers 13-17. 13. mantle 14. lithosphere ...
... The diagram below shows the interior layers of Earth. The layers in the diagram are representative of arrangement and are not drawn to scale. Use this diagram to match the layers 13-17. 13. mantle 14. lithosphere ...
Modern Plate Tectonics
... Oceanic Crust-Oceanic Crust The oldest, densest crust normally descends beneath the younger crust. Volcanic islands develop at the surface of the overriding crust (forming Island Arcs). ...
... Oceanic Crust-Oceanic Crust The oldest, densest crust normally descends beneath the younger crust. Volcanic islands develop at the surface of the overriding crust (forming Island Arcs). ...
Modern Plate Tectonics
... Pacific Plate. The eastern side of the fault moves southeast and the western side moves to the northwest. Total movement along the fault has been 564 km over the past 30 million years (1.9 cm per year). ...
... Pacific Plate. The eastern side of the fault moves southeast and the western side moves to the northwest. Total movement along the fault has been 564 km over the past 30 million years (1.9 cm per year). ...
Understanding the Cascadia Subduction Zone
... knee to break it, where it first slowly creeps, then suddenly snaps. Figure 1. Simple model of the Cascadia subduction zone. The tan Plates represent the Earth’s crust (This is the structure being studied). Earthquakes are mostly generated along the part of the fault encompassed by the brown circle. ...
... knee to break it, where it first slowly creeps, then suddenly snaps. Figure 1. Simple model of the Cascadia subduction zone. The tan Plates represent the Earth’s crust (This is the structure being studied). Earthquakes are mostly generated along the part of the fault encompassed by the brown circle. ...
Play-Doh Plates
... Continental crust may be situated in the middle of the plate, or along the edge of the plate (or both). ...
... Continental crust may be situated in the middle of the plate, or along the edge of the plate (or both). ...
Make a bar graph with the Tectonic Plate as the independent
... 3. What is the average velocity of all the plates together? __________________________________________ 4. What percentage of plates are moving more than 10 cm/yr? ...
... 3. What is the average velocity of all the plates together? __________________________________________ 4. What percentage of plates are moving more than 10 cm/yr? ...
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.