Monday, October 31, 2011

turkey earthquake


This is a convergent boundary, and the two plates names are Arabian Plate and Eurasian plates. 

A M7.8 earthquake struck Erzincan in 1939, killing an estimated 33,000 people. Which is the strongest in the past 100 years

Thursday, October 6, 2011

Dams (Current Event)

China would be benefitted because that 90% of the electricity would be going to China. However, the quality of the dam was questionable. They stopped the construction of the dam was because it would have flooded. The dam is also placed on an area that has many different kinds of life that would potentially be flooded. The dam would cause irreversible damage to burmas key river system,as long as rice patty farmers because it would stop the water flow. Groups in Burma, not only did they close the dam because of environmental impacts, displacement, and threats to cultural sites, but the dam is located a little less than 100 kilometers from a huge fault If there was an earthquake that were to weaken the dam, it would flood and kill thousands of people. The people who wrote the article clearly want the dam to be shut down and they think that dams are wrong. The websites mission is to close dams.

Tuesday, September 20, 2011

Stenos Puzzle

 
the order is 316B254 
I know that 3 happened more recently than 1 because 3 is an intrustion and it cuts through 1
I know that 1 happens more recently than 6 because 1 is a layer on top of 6
I know that B is more recent than 2 because it is a fault and it is before before two because you can see that 2 is split in two pieces
I know that 2 is before 5 because 2 is an intrustion and it intrudes in through 5
I know that 5 is before 4 because you can see that if you shifted the fault back to the way it was at firs, 5 happened prior to 4 because it would be on top of 4. 

Friday, September 16, 2011

Age of the Earth

Geologists have started to understand that the earth is older than 6000 years. There are so many layers in the rocks, and with these layers is shows that there are more than 6000 layers of rock. Also, with places like the grand canyon, it takes millions of years for formations like that to form. They understand that there is no way there is only 6000 years in the earth. The layers in the earth go down for many many miles. People who believe in uniformitarianism think that geologic change takes place slowly and over a long period of time.