Volcanic Plug, Shiprock, NM Shiprock is composed of fractured volcanic breccia and black dikes of igneous rock called minette.

- Image ID: KGHD11

Volcanic Plug, Shiprock, NM Shiprock is composed of fractured volcanic breccia and black dikes of igneous rock called minette.

Phil Degginger / Alamy Stock Photo

Image ID: KGHD11