Tuesday, November 19, 2013

A geologic wonder located near Minneapolis, Kansas, Rock City has been designated a National Natural Landmark. The large spherical boulders in Rock City are giant calcite-cemented concretions, typically called "cannonball concretions" because of their shape

A geologic wonder located near Minneapolis, Kansas, Rock City has been designated a National Natural Landmark. The large spherical boulders in Rock City are giant calcite-cemented concretions, typically called "cannonball concretions" because of their shape
A geologic wonder located near Minneapolis, Kansas, Rock City has been  designated a National Natural Landmark. The large spherical boulders  in Rock City are giant calcite-cemented concretions, typically called  "cannonball concretions" because of their shape
Click here to download

No comments:

Post a Comment