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Major Divisions of Earth Plate Tectonics
Different Properties Plate Tectonics
Rigid Plate Tectonics Plastic
The outer layer is the thinnest = Crust Two kinds of Crust Plate Tectonics
continental crust : thicker, light (granite) oceanic : thinner, dense (basalt) Plate Tectonics 2.7g/cm³ 3.3 g/cm³
Each Tectonic Plate: Oceanic crust or Oceanic & Continental crust Plate Tectonics
Each Tectonic Plate: Oceanic crust or Oceanic & Continental crust (none with continent only) Plate Tectonics
Oceanic crust or Oceanic & Continental crust Plate Tectonics
Active continental margin: leading edge of plate (earthquakes, volcanoes, steep mountains) Plate Tectonics
Passive continental margin: trailing edge of continent (eroded mountains, flat plains, little activity) Plate Tectonics
Active margin Passive margin
Plate Tectonics Classification of Plate Boundaries
Plate Tectonics I. Divergent Boundaries : tension = pull apart normal faults
Plate Tectonics I. Divergent Boundaries : tension = pull apart normal faults http://web.mala.bc.ca/earle/geol201/rift-valley2.gif
Plate Tectonics I. Divergent Boundaries : new ocean crust formed mid-ocean ridge with a rift valley down the middle
Plate Tectonics I. Divergent Boundaries : young basin
Plate Tectonics I. Divergent Boundaries : mature basin
Plate Tectonics I.Convergent Boundaries : compression = push together reverse faults
Plate Tectonics I.Convergent Boundaries : compression = push together reverse faults http://geology.wr.usgs.gov/parks/deform/hangfootwall.gif
Plate Tectonics I.Convergent Boundaries : folding & uplift earthquakes http://geology.wr.usgs.gov/parks/deform/hangfootwall.gif
Plate Tectonics Three kinds of Convergent Margins (Crust Type) oc - oc oc - cont. cont. - cont.
Plate Tectonics IIa. Ocean - Ocean deep sea trench subduction zone (recyle) volcanoes & uplift
Aleutians, Japan, Philippines, Indonesia
Plate Tectonics IIb. Ocean - Continent deep sea trench subduction zone (recycle ocean side) volcanoes & major uplift
Plate Tectonics IIb. Ocean - Continent
Plate Tectonics IIc. Continent - Continent collision no subduction, no vulconism (can't recyle continents) heat & pressure, folding & major uplift
Plate Tectonics IIc. Continent - Continent
Plate Tectonics III. Transform Plate boundaries shear = sliding past in opposite directions lateral movement with earthquakes
Plate Tectonics III. Transform Plate boundaries California San Andreas fault
Plate Boundaries. Earth’s outer layer is divided into many strong, moving lithospheric plates lithospheric Tectonic Plates Plate Tectonics.
Plate Tectonics. Theory of Plate Tectonics Earth’s crust and part of the upper mantle are broken into sections Sections of Earth’s crust = PLATES.
Tectonic Plate Boundaries and Their Effects. Divergent Boundaries: Examples are East African Rift and Mid-Atlantic Ridge.
Which plate boundary is represented?. Convergent Boundary.
Plate Boundaries. Divergent Plate Boundary Description of Plate Boundary & Motion at Boundary: ON LAND – two plates spread apart; crust separates and.
Bell Work: September 3 Define The Plate Tectonic Theory What are some ways that plate tectonics change the surface of the earth?
The Theory of Plate Tectonics - Boundaries, Stresses, and Faults 1.What is the theory of plate tectonics? 2.What are the three types of plate boundaries?
Plate Tectonics Chapter 1 Section 5. Plates What is a plate? A plate is a piece of the lithosphere Plates fit closely together along cracks.
Plate Tectonics. What is Plate Tectonics The Earth’s crust and upper mantle are broken into sections called plates These plates move around on top of.
Plate Tectonics. Brief Structure of the Earth Divided into layers: –Core, mantle, crust.
Major Geological Events Caused by Plate Tectonics.
Plate Boundaries JOURNAL PAGE 65. The edges of the plates meet at lines called plate boundaries. When rocks slip past each other along these boundaries.
Plate Tectonics. The Earth’s Crust is Made of Plates.
Stress – force that pushes or pulls rock Tension Compression Shearing Fault – Break in Earth’s crust where plate movement occurs Normal Reverse Strike-Slip.
Theory of Plate Tectonics Plate Tectonics Plate Boundaries Causes of Plate Tectonics.
Plate Tectonics. The crust is broken into plates that float on the mantle. The crust is broken into plates that float on the mantle. Sometimes the plates.
Plate Tectonics Plate Boundaries and Motion. Plate Boundaries Divergent Boundary – moving _____ Convergent Boundary – moving ________ Transform Fault.
Falcon Focus Rank the four main layers of the earth from least dense to most dense. What causes the plate tectonics to move?
Plate Tectonics Chapter 9. Theory of Plate Tectonics Plate Tectonics Plate Boundaries Causes of Plate Tectonics.
Plates make up the crust of the Earth Can you see any similarities between the plate boundaries shown here and The ones you found with your earthquake.
PLATE TECTONICS. Lithospheric plates Lithosphere is made up of 12 large plates and about 20 smaller ones Plates are solid and float on the asthenosphere.
Plate Boundaries. Why do we care about plate boundaries?
In 1912, German scientist Alfred Wegener proposed the idea of continental drift. Based on evidence he saw, he believed that the continents must have.
Factors that Cause Tectonic Plate Movement. 1. Gravity Earth’s gravitational force is always pulling objects toward the center of the earth, even the.
Bell Work10/08/13 What features do scientists use to mark the boundaries (edges) of the lithospheric plates (plate boundaries)? Mid Ocean Ridges and deep.
There are 3 main types of plate boundaries: 1. Divergent 2. Convergent 3. Transform.
Scientists identify the boundaries between two plates by the plate movement. There are three types of plate boundaries: 1. Divergent 2. Convergent.
Theory of Plate Tectonics. How do we know the plates exist? Earthquake and Volcano Zones Ocean floor features (Trenches and Mid-Oceanic ridges)
Plate Tectonics. Plate Boundaries Causes of Plate Tectonics.
Plate Tectonics. What is Plate Tectonics? Wikipedia defines Plate Tectonics as the large-scale movement of the Earth’s Lithosphere. Basically, the Earth’s.
Do Now: Do Now: What are some features that result from Plate movements? A. Mountain building – formed from pressure of crustal movements. 1. Folding.
Earths Structure Goal: Be able to identify the structure of the earth’s interior.
Plate Tectonic Booklet Convection Currents. Example: Mid-Atlantic Ridge Effects: 1. Creates a submarine mountain range 2. Volcanic activity in the form.
Catalyst TURN PROJECTS IN UP FRONT On a sticky note, summarize the Theory of Continental Drift.
Obj: What is the Theory of Plate Tectonics? Copy the following questions in your notebook: TABLE 1 (7)- What is a mid ocean ridge? TABLE 2 (8)-What is.
Plate Tectonics. How many lithospheric plates are there on the earth?
Aim: How do the plates of the Earth move? Do Now: Using the worksheet, “Plate Movement: In out and Sideways”, answer the following questions below. - What.
TERRA FIRMA Plate interactions. EARTH’S INTERIOR crust under the oceans - basalt (more dense) crust under the continents - granite (less dense) mantle.
Plate Tectonics Plate Boundaries Causes of Plate Tectonics.
Plate Boundaries Notes. 3 Types of Plate Boundaries Divergent Convergent Transform.
Tectonic Plates. Lithosphere – outer part of the Earth’s crust. Composed of solid rock. Asthenosphere - the zone below the lithosphere which is more ‘plastic’
Plate Tectonics Causes of Plate Tectonics Plate Boundaries.
Tectonic plates – pieces of the crust or lithosphere that float on the asthenosphere –These plates form, move, and subduct plate tectonics– the theory.
PLATE MOVEMENT POLLUTES ATMOSPHERE. X BECAUSE IT IS FURTHER EAST & THE EARTH ROTATES FROM WEST TO EAST. PLATE MOVEMENT THEY FIT TOGETHER LIKE A PUZZLE.
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