To Nick and Greg, about Spiders
The photo links listed recently were quite interesting, and were of such high quality that I noticed some new features around many spiders:
there seems to be distinctive erosion features around many of them, as if the Spiders are either above or below the surrounding terrain.
Is there a way to determine if they are uplifted or depressed?
What are some of the implications of this?
Is there more information on the life-cycle of these "spiders"?
Ed