Ruggedized digital camera...

that seems appropriate for geological field work and adventure travel is the new Canon D10. It certainly looks dorky but it may be worth considering if you're shopping for a new camera that can take some abuse. I own two Canon digital cameras (30D and G10) and their image-stabilized binoculars and can vouch for the high quality of their products. The Olympus Stylus 1030 SW is another one to consider.