Geology Challenge

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Geology Challenge

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1stretch
Sep 17, 2010, 8:45am

I thought we could start our own Geology trivia game. To both entertain and educate. I have no rules to game like the person getting an answer right has to post the next question or anything like that. And the questions can be as general or specific as you'd like, covering any area of geology.

I'll start with the first question:



Name this geologic feature?

Hint: Formed During the last ice age, about 18,000 to 12,000 years ago here in the Northwestern portion of the United States.

2setnahkt
Sep 17, 2010, 12:26pm

Channeled scablands?

3yapete
Sep 17, 2010, 12:29pm

No idea of the name, but is this the result of that giant glacier lake draining across the current state of Washington?

4stretch
Sep 20, 2010, 8:03pm

Yes both the above are correct.

More specifically the picture depicts the ripple marks within the Channeled Scablands of periodic flooding from the Glacial Lake Missoula in eastern Montana. At least for me It's pretty cool to think of ripple marks that are typically measured in centimeters jacked up to a meter scale.

5yapete
Sep 21, 2010, 9:06pm

Yes, I would like to see that some time!