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Divergent Plate Boundaries Use this PPT for p. 9 in your INB! How they happen!
Divergent means: moving apart. “di-” means: two (think of divide or dissect)
Where in the World is this Boundary???
1. The Mid-Atlantic Ridge (or any mid- ocean ridge)
2. Iceland, which is splitting apart down the middle because it’s on the Mid- Atlantic ridge.
3. East Africa, which is splitting apart into thirds.
What are the resulting landforms of a divergent boundary???
(1) Rift Valleys The Álfagjá Rift Valley in southwest Iceland Most of the world’s rift valleys are on the ocean floor.
(2) Mid-Ocean Ridges (3) New Oceans (4) Volcanoes & (5) Shallow Earthquakes
Types of Plate Boundaries © Copyright M. J. Krech. All rights reserved.
Plate Tectonics Why do we have earthquakes?
Moving plates interact at divergent, convergent and transform fault boundaries.
Plate Boundaries Convergent – 2 plates moving towards each other. Subduction Ocean/Ocean Subduction Continent Convergent Divergent – 2 plates moving away.
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 Earth’s crust plus the upper mantle forms the lithosphere. Earth’s lithosphere is broken in a number of different pieces. How these pieces.
Which plate boundary is represented?. Convergent Boundary.
© 2011 Pearson Education, Inc. Plate Boundaries.
Plate Tectonics. Plate tectonics describes the motion of Earth’s plates. Movement of plates can cause earthquakes!
Where Things Come Apart. At divergent plate boundaries, plates move away from each other. Many of these boundaries occur along the oceanic ridge.
Types of Plate Boundaries. When 2 plates meet….. 1- They can crash together = ConvergentBoundaryORConvergent BoundaryOR Divergent BoundaryOR2- They can.
Chapter 17 Plate Tectonics Part 2. Plate Interactions We have two different types of crust Oceanic Continental We have three different types of.
Starter: 1/8 : Quiz 1/11-14: Connection/ Application/ 1/8-14/16 Plate Boundaries Poster Exit: You will need to know: What type of plate boundary.
Plate Boundaries. Divergent Plate Boundary Description of Plate Boundary & Motion at Boundary: ON LAND – two plates spread apart; crust separates and.
Earth’s Structure by BrainpopGeological Changes—3:25.
Review of plate boundaries: Everything in one easy picture:
Starter: Connection : Where in the World? Activity Application/ 1/8/15 Plate Boundaries Activity If two continental plates hit each other, what.
Plate Tectonics. Objective 1 Define the word plate as it is used in geology.
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: What changes the positions of the continents over time? DIVERGENT BOUNDARIES.
The theory of plate tectonics explains the formation, movements, and subduction of the earth’s plates. ◦ What is a plate? A section of lithosphere.
Volcanoes can form at any point where the crust is weak. They mostly form along boundaries of Earth’s plates because that is where the rocks tend to be.
Plate Boundaries. Earth’s outer layer is divided into many strong, moving lithospheric plates lithospheric Tectonic Plates Plate Tectonics.
Theory of Plate Tectonics Theory that pieces of lithosphere move around on top of the asthenosphere.
Spheres of the earth 1.What is the Atmosphere? Layer of gases that surround the earth 1.What is the Biosphere? The part of the earth where life exists.
Plate Tectonics Plate Boundaries and Interactions.
Chapter 3 – Volcanoes. Volcanic belts from along the boundaries of Earth’s plates. There are 600 active volcanoes on land and many more beneath the.
3.3 Plates Move Apart Learn about: Different plate boundaries Different plate boundaries What happens when plates move apart. What happens when plates.
J Tuzo Wilson- lithosphere is broken into separate sections called plates. Combine all information from continental drift, sea-floor spreading, and.
HOW DO SCIENTIST EXPLAIN EARTH’S FEATURES Chapter 8 Lesson 3.
Map Of The Plate Boundaries. Plate Boundaries Convergent Boundary– – mountain building – India Himalayas Divergent Boundary– – rift apart– Mid Atlantic.
Plate Boundaries internal-structure.shtml.
Plate Tectonics Scientist, Tuzo Wilson, combined the knowledge of sea-floor spreading, earths plates, and continental drift into a single theory- The Theory.
Tectonic Plate Boundaries. Foldable Front Cover Fold Paper in Half Hamburger Style Cut along dashed lines to create 4 flaps Tectonic Plate Boundaries.
Plate Boundaries. Constructive (Divergent) Plate MovementsGeological Process Associated Landforms Example Two plates of the oceanic crust moving apart.
Landforms (Relief Features) associated with plate boundaries
Looking at the world map, what do you notice about the shape of the continents? Jot down your ideas on your paper…
Theory of plate tectonics. Continental drift hypothesis Before the theory of plate tectonics in the 1960’s, there was Alfred Wegener’s hypothesis of continental.
Plate Tectonics Lithosphere- 60 miles thick (crust and upper part of the mantle.) It is the solid outer layer of earth made up of tectonic plates. Plate.
Plate Tectonics. The Earth’s Crust is Made of Plates.
Plate Tectonics Chapter 17. Continental Drift _________ proposed the theory that the crustal plates are moving over the mantle. This was supported by.
Earth Science Review. Explain how similar fossils have been found on both South America and Africa.
How Earth’s Plates Move Plate Tectonics. The Lithosphere The plates of the lithosphere fit together like puzzle pieces and float on the asthenosphere.
1.3 Outline Plates Move Apart. I. Tectonic Plates Have Different Boundaries 1) Divergent boundary: occurs where plates move apart; mainly found in ocean.
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.
© 2014 Pearson Education, Inc. Chapter 2 Plate Boundaries.
UNIT SIX: Earth’s Structure Chapter 18 Earth’s History and Rocks Chapter 19 Changing Earth Chapter 20 Earthquakes and Volcanoes.
Plate Boundary Volcanism Reference: Pages & 557 Volcanoes are associated with two of the three types of plate boundaries, these being convergent.
The Theory of Plate Tectonics Chapter 1, Section 5.
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