igneous
All of My Faults Are Stress Related
Category archives for igneous
Hot rocks, thermal insulation, and the giant imaginary comforter in the lower crust
Posted by Kim Hannula on April 15, 2009
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The cores of mountain belts formed by continental collisions often contain metamorphic rocks, formed when sediments were buried in the collision and transformed by heat and pressure. But the heat and pressure don’t happen simultaneously – rocks can be buried (and increase in pressure) much faster than they can heat up. When the rocks are…
Magma beneath Socorro, New Mexico
Posted by Kim Hannula on March 9, 2009 I had no idea there was magma beneath Socorro, New Mexico. When I read about it in this month’s Geology, my first reaction was OMG WE’RE GONNA DIE!. (I’ve been occasionally using the electron microprobe at New Mexico Tech to look at rocks that were metamorphosed around a 380-million-year-old granite. I had no idea that…