Site hosted by Build your free website today!

Rocks In My Head

Blog Tools
Edit your Blog
Build a Blog
RSS Feed
View Profile
« February 2014 »
2 3 4 5 6 7 8
9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28
Entries by Topic
All topics  «
geology et al
some days are pretty good
My own link
Rock Shop
You are not logged in. Log in
glacial theory

The glacial theory was first proposed by Swiss naturalist and teacher Louis Agassiz in 1837.  His idea that the earth had experienced very cold climates and an expansion of glacial ice explained erratic boulders and striated bedrock across Europe.  He came to the U.S. to teach at Harvard and found further evidence for his theories.  Earlier conclusions about the distribution of boulders attributed the phenomenon to the great flood.  A detailed reading of glaciation in Minnesota was started by N.H. Winchell, head of the newly created Minnesota Geological Survey, in 1872.  He was assisted by New England glacial geologist  Warren Upham.  Within 10 years they had completed a great deal of fieldwork mapping moraines and presenting an accurate view of the ice border in North America.  

Posted by oh5/ojhoff at 9:23 PM CST
Updated: 02/19/14 9:25 PM CST
Post Comment | Permalink | Share This Post

View Latest Entries