I’m Andrew Alden. As a writer, I cover the Earth sciences for the whole planet and its neighbors. But my city of Oakland is full of interest too, and since I tramp around it a lot I reserved this spot to think locally.
I care a lot about my photos. As of late 2015 I routinely post images at least 600 pixels across, so clicking on the photos will show them at their best. I’m slowly upgrading the images in older posts, most of which are 450 pixels.
You can write to me at geology at andrew-alden dotcom, and mind the hyphen. You can make a PayPal donation to support my work here — info on this page.
Site news and random discussions can be found on the Announcements/Q&A page.
For 17 years I wrote about everything in geology for About.com, until they cut my contract. To see any of that content you’ll have to go there and click your way around, because neither their internal search engine nor Google will find anything of mine there. I joined Twitter as “aboutgeology” in February 2009. From 2011 to mid-2016 I wrote regularly for KQED, first in Quest Science blogs, writing about geology of the greater Bay area, then as a KQED Science Contributor.