What you ought to know about metamorphism

I love metamorphic rocks. In hand-specimen they are varied and mysterious, an invitation to do some mineral spotting. In thin-section they are positively gorgeous: solid garnet, foxy biotite (where you can see radiation-damage around zircons), fluffy fibrolite, elusive cordierite… Metamorphic rocks are both attractive and interesting, a compelling combination at any party. They generally aren’t as popular as… Continue reading What you ought to know about metamorphism

Accretionary Wedge – 37: Sexy Geology

Accretionary Wedge #37 called for examples of ‘Sexy Geology’.  Here’s mine: You always remember your first time. I was a young man, freshly graduated and I’d somehow persuaded the government to give me (just) enough money to spend three years studying for a geology doctorate. Once spring arrived I eagerly set off for my field… Continue reading Accretionary Wedge – 37: Sexy Geology