posted on Jun, 11 2008 @ 02:52 AM
Originally posted by ArMaP
Rocks are interesting.
Although I never really studied geology that is one of my favourite subjects, it can show much more than most people think it's possible about the
environment and its evolution.
I agree with you ArMaP. I find it impossible not be fascinated by geology after seeing up close what erupting volcanoes, lahars and glaciers have done
to Earth's landscape.
I remember two documentaries, one about Lake Missoula in Montana
and the other about
's lahar history. I do not have links to those doc
videos but I did link to sites explaining a bit more. I thought this stuff was very interesting and would go along way to help in understanding what
we see in these images.
The theory that an ancient lake in Montana, with an ice dam that broke, sending huge amounts of water scouring the landscape of Idaho, Eastern
Washington and Oregon all the way to the Pacific ocean was not an easy one for geologists to accept. Nor was the theory of a lahar from Mt. Rainier
long ago that covered the Orting/Puyallup vallys with 100 ft. of mud spilling into the Puget Sound between the port cities of Tacoma and Seattle.
These theories have just recently begun to change the way we think about geology even though the evidence has been there all along. To define with
absolution that what you see are just rocks describes a perspective that is very limiting. I don't think those that began to see evidence for a
theory about Lake Missoula or Rainier's lahars limited their perspective by believing what everyone was telling them.