At the very least, PEER is exaggerating this -- the official Parks Service Grand Canyon FAQ says (http://www.nps.gov/grca/faqs.htm#old):
How old is the Canyon?
That's a tricky question. Although rocks exposed in the walls of the canyon are geologically quite old, the Canyon itself is a fairly young feature. The oldest rocks at the canyon bottom are close to 2000 million years old. The Canyon itself - an erosional feature - has formed only in the past five or six million years. Geologically speaking, Grand Canyon is very young.
I can't find any evidence beyond the PEER article that the Parks Service is doing anything more sinister than selling a crappy book in their gift shop.
no subject
Date: 2007-01-02 11:58 pm (UTC)At the very least, PEER is exaggerating this -- the official Parks Service Grand Canyon FAQ says (http://www.nps.gov/grca/faqs.htm#old):
How old is the Canyon?
That's a tricky question. Although rocks exposed in the walls of the canyon are geologically quite old, the Canyon itself is a fairly young feature. The oldest rocks at the canyon bottom are close to 2000 million years old. The Canyon itself - an erosional feature - has formed only in the past five or six million years. Geologically speaking, Grand Canyon is very young.
I can't find any evidence beyond the PEER article that the Parks Service is doing anything more sinister than selling a crappy book in their gift shop.
no subject
Date: 2007-01-03 12:18 am (UTC)