Evidence Of seafloor spreading

Slides:

Advertisements

Similar presentations

Theory that all of the continents were once one large landmass (Pangaea) that has broken up and drifted apart. –Alfred Wegener Evidence –Continents fit.

Advertisements

WARM-UPS #1 Use your p to answer the questions. Use your p to answer the questions. 1. What type of boundary occurs where plates collide?

Restless Continents.

Restless Continents. Wegener’s Theory of Continental Drift  Alfred Wegener looked at the continents as a puzzle.  He came up with the theory of “Continental.

Restless Continents continental drift: the hypothesis by Alfred Wegener that states that the continents once formed a single landmass, broke up, and drifted.

EVIDENCE OF CONTINENTAL DRIFT.

The Dynamic Interior of the Earth

P1 – Seafloor spreading. Today you need to know 1.Explain what evidence there was to support the theory of continental drift – suggested by Alfred Wegener.

Continental Drift Who is Alfred Wegener?

Unit 4 Lesson 2 Plate Tectonics

Plate Tectonics.

Warm-Up What are the 4 pieces of evidence that support the theory of Continental Drift? Time’s Up!

Plate Tectonics. Plate Tectonics What is Plate Tectonics The Earth’s crust and upper mantle are broken into sections called plates Plates move around.

If you look at a map of the world, you may notice that some of the continents could fit together like pieces of a puzzle…..the shapes of the coastlines.

Chapter 10 Plate Tectonics. Alfred Wegener Proposed they hypothesis of continental drift Proposed they hypothesis of continental drift CONTINENTAL DRIFT-

Topic: Continental Drift Essential Question: What evidence supports the theory of continental drift?

Unit 4 Lesson 2 Plate Tectonics Copyright © Houghton Mifflin Harcourt Publishing Company.

Continental Drift 225 million years ago. Continental Drift million years ago.

(c) McGraw Hill Ryerson Evidence for Continental Drift If you look closely at a world map. It looks likes S. America and Africa can fit together.

1 Plate Tectonics Notes Geology – the study of the Earth and its processes.

Formation of the Earth. Previous Theories  Continental Drift Theory  Developed by Alfred Wegner (1900’s)  Believed continents were once all combined.

EQ: How do lithospheric plates move and how do they affect the Earth’s surface?

“Continental Drift” I. Early Evidence of Continental Movement: A. Continental Drift: 1. Continental Drift -A hypothesis, which states that continents.

Ch 10 Plate Tectonics A Moonenland Production A subsidiary of Moonco. Inc.

Plate Tectonics.

Continental Drift Theory

Plates of the Lithosphere. Pangaea – Giant supercontinent of the Paleozoic and Mesozoic eras Continental Drift – The breakup of Pangaea where plates moved.

Earth’s Moving Continents Ch. 5, Lesson 2 Part 1.

Continental Drift. Note the Shapes South America & Africa: They Match! What about any others? North America?

Target What is continental drift?. Continental Drift The theory that continents can drift apart from one another and has done so in the past.

Alfred Wegener, Pangea, And The Evidence For Continental Drift. Tyler Young Amesbury 4 th Sep. 21, 2015.

Chapter 11 Plate Tectonics. Continental Drift Continental Drift – a hypothesis proposed by Alfred Wegener, which states that continents have moved horizontally.

Forces behind change Plate tectonics. Focus Questions How does the movement of the earth’s plates cause land features? What evidence supports the theory.

Objective You will use the theory of plate tectonics and the changes in the earth’s surface in order to explain the evidence for continental drift theory.

Plate Tectonics and Continental Drift.

Earth’s Structure and Pangaea. Review Inside the Earth The Earth has 4 main layers. 1.Crust (rock) 2.Mantle (rock) 3.Outer Core (metal) 4.Inner Core (

“Restless Continents”. A. One scientist who looked at the pieces of this puzzle was Alfred Wegener. 1. In the early 1900s, he wrote about his hypothesis.

Do Now. The theory of plate tectonics explains that earth’s lithosphere moves due to the unbalanced forces occurring within the mantle. Alfred Wegner.

Warm-Up 1.If a bone specimen contains 12.5% of its original amount of Carbon-14, how many half lives have passed? 2.How old if the bone? Time’s Up!

Plate Tectonics.

Earth’s Structure and Pangaea. Review Inside the Earth The Earth has 4 main layers. 1.Crust (rock) 2.Mantle (rock) 3.Outer Core (metal) 4.Inner Core (

List 1 fact about Earth. Agenda for Monday Nov 22 nd 1.Finish Movie 2.Layers of the Earth notes.

Alfred Wegener in the early 1900’s proposed the hypothesis that continents were once joined together in a single large land mass he called Pangea (meaning.

Plate Tectonics. Outline  Pangaea  Continental Drift  Mid-ocean ridges and seafloor spreading  Magnetic patterns on the seafloor  Plate tectonics:

The Theory of Continental Drift Observations Leading To and Evidences Supporting Theory.

HOW DOES EARTH PLATES HELP SHAPE LANDFORMS Chapter 8 Section 2.

Plate Tectonics. A Guide to Taking Cornell Notes Left side is smaller than the right side Red words go on the left (vocab words) Black words go on the.

“Continental Drift” I. Early Evidence of Continental Movement: A. Continental Drift: 1. Continental Drift -A hypothesis, which states that continents.

PLATE BOUNDARIES Day 1. A. Geographic Puzzle 1. Alfred Wegener - a scientist that first believed that the continents fit together like a puzzle a) Ex:

 Alfred Wegener wrote about his hypothesis of continental drift in the 1900s.  Continental drift is the hypothesis that states that the continents.

The Theory of Plate Tectonics and Continental Drift Write down the underlined items for your notes. Feel free to put the material in your own words.

Chapter 7 Section 2. What You Will Learn  Describe Wegener’s hypothesis of continental drift.  Explain how sea-floor spreading provides a way for continents.

Earth’s Structure and Pangaea. Review Inside the Earth The Earth has 3 layers. 1.Crust 2.Mantle 3.Core.

Earth’s Structure and Pangaea. Review Inside the Earth The Earth has 4 main layers. 1.Crust (rock) 2.Mantle (rock) 3.Outer Core (liquid metal) 4.Inner.

Plate Tectonics. What do the locations of Volcanoes and Earthquakes tell us?

Plate Tectonics Chapter 4 Lesson 1 Pages

Plate Tectonics.

Plate Tectonics…what is it?

Topic: Continental Drift

Plate Tectonics EQ: How do lithospheric plates move and how do they affect the Earth’s surface?

Unit 4 Lesson 2 Plate Tectonics

Plate Tectonics.

GEOLOGY Notes PART 1 Alfred Wegener (1912)

Unit 1 Lesson 3 Earth’s Plates

Chapter 4 Plate Tectonics

Fact or Fiction? You decide!!!!!!!!!!!!

Continental Drift and Seafloor Spreading

The Structure of the Earth and Plate Tectonics

Convection Currents What causes the tectonic plates to move?

Presentation transcript:

Evidence Of seafloor spreading By: Mariah Seaman and Jazmyne Jones

This IS.. Pangea - Pangea is a large landmass also known as “All Earth”. Formed 270 million years ago. Broke apart about 200 million years ago.

The Timing After Pangea Lead To…

Seafloor spreading -seafloor spreading is tectonic plates slowly move away from each other. Occurs along mid-ocean ridges. - Evidence of seafloor spreading is..

Animals Living animals separated lands are similar in India and Madagascar Examples are elephant bird and ostrich.

Fossils -Fossils on the east side brazil match with fossils in western south Africa. Fossilized life in rock recorded didn’t fit in the climate they were found in ex. (Alaska , palm tree leaves )

It is a puzzle! Africa and south America can fit together like a puzzle piece. Same as India and Madagascar

Magnetic stripes Magnetic stripes provide evidence of sea floor spreading -striped magnetic patterns developed , Because oceanic crust pulls apart , magma rises to the surface at mid- ocean ridges.

More seafloor information! Seafloor spreading formed 270 million years ago Broke apart about 200 million years ago Sea floor spreading is one of the two major processes of the plate tectonics. Volcanoes and other features that grow or fall into sea floor spreading to move and sink with the sea floor spreading over time . the sea floor spreading on each side of a mid -ocean ridge move in different directions each side belongs to a different lithosphere plate