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WHAT EVIDENCE WAS USED EARLY TO SUPPORT THE CONCEPT OF PLATE TECTONICS?

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Presentation on theme: "WHAT EVIDENCE WAS USED EARLY TO SUPPORT THE CONCEPT OF PLATE TECTONICS?"— Presentation transcript:

1 WHAT EVIDENCE WAS USED EARLY TO SUPPORT THE CONCEPT OF PLATE TECTONICS?

2 ALFRED LOTHAR WEGENER, 1880-1930

3 1.Jig-saw puzzle fit of the continents

4 ALFRED LOTHAR WEGENER, 1880-1930 1.Jig-saw puzzle fit of the continents 2.Fit of geologic materials between continents.

5 ALFRED LOTHAR WEGENER, 1880-1930 1.Jig-saw puzzle fit of the continents 2.Fit of geologic materials between continents. 3.Global Distribution of plants and animals

6 02.05.a1 1. JIG-SAW PUZZLE FIT OF THE CONTINENTS Fit accomplished using continental shelves rather than present coastlines

7 02.05.a1 1. JIG-SAW PUZZLE FIT OF THE CONTINENTS South America Fit accomplished using continental shelves rather than present coastlines

8 02.05.a1 1. JIG-SAW PUZZLE FIT OF THE CONTINENTS Africa South America Fit accomplished using continental shelves rather than present coastlines

9 02.05.a1 1. JIG-SAW PUZZLE FIT OF THE CONTINENTS Africa South America Madagascar Fit accomplished using continental shelves rather than present coastlines

10 02.05.a1 1. JIG-SAW PUZZLE FIT OF THE CONTINENTS Africa South America India Madagascar Fit accomplished using continental shelves rather than present coastlines

11 02.05.a1 1. JIG-SAW PUZZLE FIT OF THE CONTINENTS Africa South America India Australia Madagascar Fit accomplished using continental shelves rather than present coastlines

12 02.05.a1 1. JIG-SAW PUZZLE FIT OF THE CONTINENTS Africa South America Antarctica India Australia Madagascar Fit accomplished using continental shelves rather than present coastlines

13 02.05.a1 1. JIG-SAW PUZZLE FIT OF THE CONTINENTS Africa South America Antarctica India Australia Madagascar Small fragments of other continents Fit accomplished using continental shelves rather than present coastlines

14 11.10.b1 2. GEOLOGIC SIMILARITIES BETWEEN CONTINENTS. Geologic features formed before the Atlantic Ocean (200 mya) should now be separated by thousands of miles of ocean.

15 11.10.b1 2. GEOLOGIC SIMILARITIES BETWEEN CONTINENTS. Rocks of the Appalachian Mountains “end” in Newfoundland, but appear to continue on through the British Isles and Scandinavia. Geologic features formed before the Atlantic Ocean (200 mya) should now be separated by thousands of miles of ocean.

16 11.10.b1 2. GEOLOGIC SIMILARITIES BETWEEN CONTINENTS. Rocks of the Appalachian Mountains “end” in Newfoundland, but appear to continue on through the British Isles and Scandinavia. Geologic features formed before the Atlantic Ocean (200 mya) should now be separated by thousands of miles of ocean. 400 my old rocks (brown) in South America and Africa fit together like the pattern on jig-saw puzzle pieces.

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19 Evidence of glaciation (typical patterns or erosion and deposition). 1.Glaciers on land, not sea 2.Flow patterns match up when reconstructed 250 million years ago Permian -Triassic

20 3. FOSSIL PLANTS AND ANIMALS. Lystrosaurus Australia, Antarctica, India, Africa Cynognathus South America and Africa

21 3. FOSSIL PLANTS AND ANIMALS.

22 Pangea Earth’s History Pangea Forsythe et al., 2009 Eos, 90(41), p. 361-362 PANGEA NOT THE ONLY OR ORIGINAL “SUPER-CONTINENT”


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