plate tectonics n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
PLATE TECTONICS PowerPoint Presentation
Download Presentation
PLATE TECTONICS

Loading in 2 Seconds...

play fullscreen
1 / 56

PLATE TECTONICS - PowerPoint PPT Presentation


  • 81 Views
  • Uploaded on

PLATE TECTONICS. Alfred Wegener (1880-1930). Alfred Wegener (1880-1930). The Origin of Continents and Oceans (1915). I. Continental Drift. Pangea: “all lands”. I. Continental Drift A. Fit of the Continents. Fit of the Continents. I. Continental Drift A. Fit of the Continents

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'PLATE TECTONICS' - keita


Download Now An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
slide3

Alfred Wegener

(1880-1930)

slide4

Alfred Wegener

(1880-1930)

The Origin of Continents and Oceans (1915)

slide7
I. Continental Drift

A. Fit of the Continents

slide9
I. Continental Drift

A. Fit of the Continents

B. Fossil Evidence

slide11
I. Continental Drift

A. Fit of the Continents

B. Fossil Evidence

C. Rock Types

slide13
I. Continental Drift

A. Fit of the Continents

B. Fossil Evidence

C. Rock Types

D. Paleoclimate Evidence

plate tectonics1
PLATE TECTONICS

I. Continental Drift

Alfred Wegner (1915)

A. Fit of the Continents

B. Fossil Evidence

C. Rock Types

D. Paleoclimate Evidence

WHAT IS MISSING………?

ii mounting evidence of contin drift1
II. Mounting Evidence of Contin. Drift
  • Earth’s magnetic field
  • Polar Wandering (S.K. Runcorn, 1950)

C. Sea Floor Spreading (Harry Hess, 1960)

ii mounting evidence of contin drift2
II. Mounting Evidence of Contin. Drift
  • Earth’s magnetic field
  • Polar Wandering (S.K. Runcorn, 1950)

C. Sea Floor Spreading (Harry Hess, 1960)

D. Geomagnetic Reversals

iii plate tectonics1
III. Plate Tectonics
  • Concept: an assimilation of the ideas of Wegner (continental drift) with sea floor spreading and geomagnetics
iii plate tectonics2
III. Plate Tectonics
  • Concept: an assimilation of the ideas of Wegner (continental drift) with sea floor spreading and geomagnetics
  • Plate Boundaries
iii plate tectonics3
III. Plate Tectonics
  • Plate Boundaries

1. Divergent

Hot Spot and Triple Junctions

slide39

A modern-day

divergent boundary…..

iii plate tectonics4
III. Plate Tectonics
  • Plate Boundaries

1. Divergent

2. Convergent

a. oceanic-oceanic

slide42

Converging boundary…..

    • Oceanic-Oceanic

animation

iii plate tectonics5
III. Plate Tectonics
  • Plate Boundaries

1. Divergent

2. Convergent

a. oceanic-oceanic

b. oceanic-continental

slide45

Converging boundary…..

    • Continental-Oceanic

animation

iii plate tectonics6
III. Plate Tectonics
  • Plate Boundaries

1. Divergent

2. Convergent

a. oceanic-oceanic

b. oceanic-continental

c. continental-continental

slide48

Converging boundary…..

    • Continental-Continental

animation

animation

iii plate tectonics7
III. Plate Tectonics
  • Plate Boundaries

1. Divergent

2. Convergent

a. oceanic-oceanic

b. oceanic-continental

c. continental-continental

3. Transform

iii plate tectonics8
III. Plate Tectonics
  • Plate Boundaries

1. Divergent

2. Convergent

a. oceanic-oceanic

b. oceanic-continental

c. continental-continental

3. Transform

4. Other (hotspots)