http://oaklandgeology.wordpress.com/2008/02/23/basalt-in-claremont-canyon/ focused on, near and under Oakland, California Wed, 19 Jun 2013 23:59:10 +0000 hourly 1 http://wordpress.com/ http://oaklandgeology.wordpress.com/2008/02/23/basalt-in-claremont-canyon/#comment-73 Sun, 24 Feb 2008 22:32:00 +0000 http://oaklandgeology.wordpress.com/?p=57#comment-73 Basalts can be fun, in my study area in south east Missouri, the St Francis region, there are a couple outcrops that are fascinating, one is where basalt dike intrudes a rhyolite mass, and both are exposed in a road cut (if you want the location, ill have to look it up). At that location you can see the differential weathering of the high energy state basalt, and the lower state and more resistant rhyolite. There is also a really cool basalt dike exposed in a river valley at Silver Mines Campground that has received quite a bit of study from students at my alma mater, one of the few locations in the world of a quartz basalt, that’s right, a quartz basalt. See, basalt can be fun.

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