Happy EarthCache Day! • Oct 14, 2007
We had a great day logging four EarthCaches!
We started the day early along our nearby coastline learning of striations, which are the gouges and grooves on the surface of sedimentary rock. These gouges were created by ice-borne debris collected at the base of a glacier about 25,000 to 14,000 years ago. Apparently the glacier acted like a giant bulldozer tearing and scraping anything in its path.

Next we learned about Karst topography which is a landscape feature that is characteristic of highly soluble bedrocks like limestone and evaporite deposits like gypsum and anhydrite. We found that the ground, though rocky, is quite crumbly. Not a scientific description but it was pretty cool!



