Saturday, August 9, 2008

The Grand Staircase and the Geologic Time Scale

Sort of a follow-up to the previous is a National Park Service diagram of the Grand Staircase (click on the image to enlarge). The image has been a popular poster in the National Park Service Bookstores for years, and I was pleased to find it on Wikipedia.

Highly Allochthonous made a great point the other day when he commented about how easily we geologists can confuse laypeople when we start describing geological periods and eras without noting the actual years in which the events took place. I am taking advantage of a time scale that Chris provided on his website, and have added to the page elements to the left (scroll down). I hope it clears up any confusion!


Jessica Ball said...

I love that poster! Although my copy tends to get displayed with the opposite side out. More volcanoes. :)

Silver Fox said...

That's always been a favorite of mine, also. I'm glad you found a digital version of it!