In-Ko-Pah Mountains Metamorphic Boulder

In-Ko-Pah Mountains Metamorphic Boulder
Name:Metamorphic Boulder
Date:9/17/2006
Location:In-Ko-Pah Mountains

Amidst all the igneous granite rocks, this metamorphic gneiss is somewhat a mystery as to how it got there. One thought is that previous igneous rock was later surrounded by newer magmatic intrusions which partially melted the rock to form this gneiss specimen. This particular rock is over six feet in height; the crack was a result of hydrous fluid seeping into the rock, where the fluid froze and pried the rock apart. Of course this boulder is not quite as gneiss with the crack running through it.


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