Tuesday, December 9, 2008

Cool Tangent...Rocky Butte and Jordan Creek

I have been mapping the Q basalt flows that didn't make it to the Owyhee and have learned that the lava v. water situation on Jordan Creek is exceptionally cool and interesting. We should really check this out this spring if time permits. The photo here shows a very well developed overflow channel. It appears to have filled in and then incised some depressions on the flow surface. Lots of interesting features associated with this flow.

1 comment:

  1. From the image this looks like a classic inflated pahoehoe flow surface (which means fairly slow emplacement) - it would be great to take a look at this in detail - might be a place where the river could have had an impact on the lava flow emplacement, as well as vice versa!


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