A Guide to the Geology of Organ Pipe Cactus National Monument and the Pinacate Biosphere Reserve
Issue Date
2000Keywords
Down-To-Earth SeriesProterozoic
Cambrian
Devonian
Mississippian
Triassic
Jurassic
cretaceous
Mesozoic
Pleistocene
Quaternary
Holocene
Bates Mountain
Valley of the Ajo
Growler Valley
Victoria Mine
Puerto Penasco
Sonoyta
Lukeville
Pinacate volcanic field
Puerto Blanco
Gran Desierto
Organ Pipe
Arizona
USA
Sonora, Mexico
Sea of Cortez
Ajo Mountains
Ajo
valley fill
maar
alluvial fan
breached cone
Lava tube
shield volcano
cinder cone
mylonite
volcanism
normal fault
basin
bajada