Andrew Alden is a writer, photographer, editor and blogger with a lifelong passion for rocks, minerals, fossils and the planets they come from.
Andrew spent six years with the U.S. Geological Survey, which included research excursions on land and sea. He has been a writer on geological subjects since 1981, host of the earthquakes conference on The WELL since 1992, and About.com's Geology Expert since 1997. He began leading geological tours in 2005.
I believe not only that geology is the core of all sciences, but also that knowledge of geology benefits every human being of any age. I regularly attend scientific meetings and keep abreast of geological literature, and I love to translate what I learn.