Re: [OM] E-WA trip

[Mike Lazzari]

> Looks like a place that should be on my list to see. The rock (is  > that basalt?) shelving/layering appears to have interesting geology. 
> I assume they formed with various floods. Scablands. > > WayneS
The basalt outflow layers are pretty old. They lasted for over 10 
million years up until around 6 million years ago and are up to 3 mi 
deep. Comparable to the Deccan Traps. The floods on the other hand were 
practically yesterday.
Unraveling the geology of the floods radically changed thinking about 
how the landscape changes over time. It was realized that dramatic 
changes can occur over a very short time span. If you are still 
interested here are some resources which I recommend reading prior to a 
visit. Really helps to visualize what happened.
First of all read about Harlen Bretz:
John Soennichsen, _Bretz's Flood_

Then bring the two guide books by Bruce Bjornstad, _On the Trail of the 
Ice Age Floods_
http://hugefloods.com/

Mike
(still processing)
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