Viewing: 1-1 of 1
Redwic - Mar 9, 2012 12:15 am - Voted 10/10
HypothesisPerhaps Ironstone Mountain is similar to Devils Tower (Wyoming). Devils Tower is an example of igneous intrusive rock that has become exposed after sedimentary rock eroded away over millions of years.
Perhaps similarly, this type of occurrence happened at Ironstone Mountain. We witnessed the basalt-like columns on the south slopes which, according to this diagram, would be at/near the point of sedimentary rocks... and ironstone is a sedimentary rock. We might have witnessed basalt-like columns at the point of erosion, and/or the border between igneous intrusive and sedimentary? Both ironstone and basalt there could be full of iron-rich olivine, which would explain the coloration shown in the photo.
Viewing: 1-1 of 1
Comments
Post a Comment