Oct 21, 2010 #1 ngangey Geotechnical Oct 21, 2010 20 Based on visual inspection how can I classify the bedrock on a riverbed if it is Gabbro or Basalt?
Oct 22, 2010 #3 fattdad Geotechnical Sep 7, 2006 2,790 Gabbro is coarser grained - almost like granite. Basalt is uniformly dark gray or black and fine grained. Here's a chart on igneous rocks: f-d ¡papá gordo ain’t no madre flaca! Upvote 0 Downvote
Gabbro is coarser grained - almost like granite. Basalt is uniformly dark gray or black and fine grained. Here's a chart on igneous rocks: f-d ¡papá gordo ain’t no madre flaca!
Oct 22, 2010 #4 cvg Civil/Environmental Dec 16, 1999 6,868 basalt gray or black gabro more green Upvote 0 Downvote
Oct 22, 2010 Thread starter #5 ngangey Geotechnical Oct 21, 2010 20 fattdad your the best..Thank you for the information.. Upvote 0 Downvote
Oct 23, 2010 #6 BigH Geotechnical Dec 1, 2002 6,012 fattdad - where did you access the chart? Upvote 0 Downvote
Oct 23, 2010 #7 fattdad Geotechnical Sep 7, 2006 2,790 Here's the web page that hosts the image. http://geology.csupomona.edu/alert/igneous/igclass.htm f-d ¡papá gordo ain’t no madre flaca! Upvote 0 Downvote
Here's the web page that hosts the image. http://geology.csupomona.edu/alert/igneous/igclass.htm f-d ¡papá gordo ain’t no madre flaca!
