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- Developed as a theory in the 1960s
- Some plate movement can cause earthquakes
- Two types of plates: continental and oceanic
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Plate tectonics is the geological theory that Earth's crust is made out of moving plates. Tectonic movement is thought to be caused by gravitational forces or convection currents in the Earth's mantle.PBS: Intro to Plate Tectonic Theory
Three Types of Boundaries
At convergent boundaries, tectonic plates move toward each other, causing one plate to move underneath or over top of the other. This type of boundary forms some mountain ranges and volcanoes.Divergent boundaries occur when tectonic plates move apart from each other. This causes rifts and ridges like the Mid-Atlantic Ridge.
At transform boundaries, plates move past each other. One example of this is the San Andreas Fault.US Geological Survey (USGS)| Understanding Plate Motions
Major Tectonic Plates
- African Plate
- Antarctic Plate
- Australian- Indian Plate
- Eurasian Plate
- North American Plate
- South American Plate
- Pacific Plate
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Plate Tectonics Questions
What role do tectonic plates play in forming an atmosphere?The earth's atmosphere formed mainly through volcanic outgassing, with a minor contribution from cometary impacts. Tectonic activity may or may not significant... read more
what is the connection between the mariana trench and the gulf stream? 1 AnswerWell, since it's been so long and nobody answered yet, I'll tell you what I've found. The Mariana Trench is the deepest part of the oceans and it is located in... read more
What are source of earthquakes in Indonesia? 1 AnswerThe fault line that is directly below it that runs about 125miles. The pressure has been building up for millions of years. read more
how do you clean an etched brass plate? 1 AnswerBrasso brass cleaner is safe to use on etched brass. Here's the website: http://www.reckittprofessional.com/productpro/ProductSearch.do?searchTerm=brasso&s... read more
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On Twitter Powered by Twitter
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Watching "How the Earth Was Made" on the History Channel. I love learning about plate tectonics.
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slow net and plate tectonics will be the death of me.
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@jmae_peace_love hey you. um have you finished the plate tectonics assignment? i cant find stuff for question 8 anywhere. :S
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@dieverdog Actually special on the History channel about earth's formation they showed this old plate tectonics scientist all epically cool
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Plate tectonics in action http://deputy-dog.com/2008/10/5-enormous-cracks.html
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