striation – linear grooves formed in the surface of some minerals as they grow
TRANSCRIPT
![Page 1: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/1.jpg)
Striation – linear grooves formed in the surface of some minerals as they grow.
![Page 2: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/2.jpg)
Plate Tectonics
![Page 3: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/3.jpg)
Geologic Time
4600
543
248
65
![Page 4: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/4.jpg)
The Prune Effect - 1800s - (failed attempt 1)
The molten Earth cools and contracts
The crust wrinkles and crumples
Mountains form
What about rift valleys?
What about shape and position of the continents?
![Page 5: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/5.jpg)
Rift Valley
![Page 6: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/6.jpg)
The Expanding Earth – (failed attempt 2)
20th century - radioactive decay
Land masses are ripped apart
Explains the continents
What about the mountains?
![Page 7: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/7.jpg)
- An idea before its time
- Alfred Wegener 1915
- Processor to plate tectonics
Continental Drift
Pangaea - supercontinent
Fragmented and floated around
![Page 8: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/8.jpg)
Pangaea 200 million years ago
Super Continent
![Page 9: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/9.jpg)
Lines of Evidence
•Matching Coastlines
•Matching Geology
•Glacial Deposits
•Fossil Evidence
•Apparent Polar Wandering
![Page 10: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/10.jpg)
![Page 11: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/11.jpg)
Matching
Coatlines
![Page 12: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/12.jpg)
Where is the coastline?
![Page 13: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/13.jpg)
Matching
Geology
![Page 14: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/14.jpg)
The Collision
![Page 15: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/15.jpg)
The Separation
![Page 16: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/16.jpg)
Glacial Deposits
Striations
![Page 17: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/17.jpg)
![Page 18: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/18.jpg)
![Page 19: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/19.jpg)
Fossil Evidence
Glossopteris
![Page 20: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/20.jpg)
Mesosaurus - links South America and Africa during the late Paleozoic and early Mesozoic eras.
![Page 21: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/21.jpg)
Apparent Polar Wandering
![Page 22: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/22.jpg)
A study by S. K. Runcorn in the 1950s, indicated that the magnetic north pole had apparently moved over the last 500 million years, from Hawaii to its present location.
![Page 23: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/23.jpg)
All the parts are in place,
but 1.
How are the continents moving?
![Page 24: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/24.jpg)
The Revolution Begins
early 1960s
![Page 25: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/25.jpg)
RingOf
Fire
![Page 26: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/26.jpg)
Discovery of Midoceanic Ridge
Detailed sea-floor mapping
![Page 27: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/27.jpg)
Harry Hess - essay in geopoetry
* Sea-floor spreading hypothesis
![Page 28: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/28.jpg)
Paleomagnetism
Youngest rock in the center
![Page 29: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/29.jpg)
![Page 30: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/30.jpg)
Unifying Theory - Plate Tectonics
![Page 31: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/31.jpg)
Tectonic cycle- deals with the movement and interactions of the lithospheric plates.
![Page 32: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/32.jpg)
Seafloor Spreading and Plate Boundaries
![Page 33: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/33.jpg)
Plate Boudaries / MarginsDivergent Plate Bounderies
1. continental - rift valleys
![Page 34: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/34.jpg)
Divergent Plate Boundaries
2. ocean - midoceanic ridge / spreading sea floor
![Page 35: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/35.jpg)
Transform Plate Bounderies
San Andreas Fault
![Page 36: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/36.jpg)
Convergent Plate Bounderies
Oceanic - Continental
Oceanic - Oceanic
Continental - Continental
Andes Mountains
Japan, Philippines
Himalaya Mountains
![Page 37: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/37.jpg)
West Coast of United States
![Page 38: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/38.jpg)
Earthquakes, Volcanoes, and Plate Boundaries
![Page 39: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/39.jpg)
![Page 40: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/40.jpg)
![Page 41: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/41.jpg)
![Page 42: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/42.jpg)
Benioff ZoneAssociated with Subduction
![Page 43: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/43.jpg)
How old is the ocean floor?
![Page 44: Striation – linear grooves formed in the surface of some minerals as they grow](https://reader035.vdocuments.mx/reader035/viewer/2022062518/56649de65503460f94ade455/html5/thumbnails/44.jpg)
Driving Mechanism - convection currents