Veins are classically thought of as being the result of growth of crystals on the walls of planar fractures in rocks, with the crystal growth occurring normal to the walls of the cavity, and the crystal protruding into open space. This certainly is the method for the formation of some veins. However, it is rare in geology for significant open space to remain open in large volumes of rock, especially several kilometers below the surface. Thus, there are two main mechanisms considered likely for the formation of veins: open-space filling and crack-seal growth
please describe the size of the veins that you see prominent from the roadside.
which direction are the veins going?
how thick is the largest quartz vein you can see?(in inches)
How do you think these veins evolved?
Please enjoy the area and answer the questions and log your find.
Hope you enjoyed this earthcache!