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Elspode · 03-31-2003, 03:35 PM

Another damn fine pic, UT. How do you find all these? And I even *try* to stay up to the minute on science and astro stuff...

Manicouagan is rare because plate tectonics tend to consume impact scars on Earth. Manicouagan is a big lake (the perimeter, anyway...the center is uplifted as a result of the impact rebound forces), I believe, and wasn't even recognized as an impact crater until relatively recently, like a couple of decades or so back, because it is so damn big.

For some reason, your IOTDs today are bringing up geological stuff I've read and stored away in the Trivial pursuit portion of my brain...

03-31-2003, 03:35 PM	#4
Elspode When Do I Get Virtual Unreality? Join Date: Dec 2002 Location: Raytown, Missouri Posts: 12,719	Another damn fine pic, UT. How do you find all these? And I even try to stay up to the minute on science and astro stuff... Manicouagan is rare because plate tectonics tend to consume impact scars on Earth. Manicouagan is a big lake (the perimeter, anyway...the center is uplifted as a result of the impact rebound forces), I believe, and wasn't even recognized as an impact crater until relatively recently, like a couple of decades or so back, because it is so damn big. For some reason, your IOTDs today are bringing up geological stuff I've read and stored away in the Trivial pursuit portion of my brain... __________________ "To those of you who are wearing ties, I think my dad would appreciate it if you took them off." - Robert Moog