Author
Butler, B.S.Wilson, E.D.
Heineman, R.E.
Trischka, C.
Reber, L.E., Jr.
Rubly, G.R.
Gilluly, J.
Short, M.N.
Hernon, R.M.
Garrett, S.K.
Fowler, G.M.
Peterson, N.P.
Kuhn, T.H.
Lasky, S.G.
Webber, B.N.
Issue Date
1938-10-01Keywords
Arizona Geological Survey BulletinsLaramide
Cenozoic
Paleozoic
cretaceous
Mesozoic
Carboniferous
Devonian
Silurian
Ordovician
Cambrian
Pre-Cambrian
La Paz County
Greenlee County
Mohave County
Santa Cruz County
Yuma County
Graham County
Yavapai County
Gila County
Cochise County
Pinal County
Pima County
Maricopa County
Desert Region
Mountain Region
Arizona
Basin and Range Province
bedrock geology
topography
piedmont
geomorphology
mining
surficial geology
Geology
ore deposits
Metadata
Show full item recordDescription
The principal ore deposits of Arizona are in the southern, central, and western portions of the state, which physiographically are part of the Basin and Range province, southwest of the Colorado Plateau (PI. I). The Basin and Range province is characterized by numerous subparallel mountain ranges separated by plains or valleys. Most of these ranges trend northwest to north, parallel to the margin of the Colorado Plateau; but in southeastern Arizona, southern New Mexico, and northeastern Sonora, they trend northward, transverse to the edge of the Plateau. The mountains rise abruptly from plains or valleys, the margins of which in many places are pediments cut on hard rock. Some of the plains form closed basins (bolsons, playas), but most of them are drained. The Basin and Range province in Arizona is divisible into the Mountain Region and the Desert Region- (PIs. I and II). The Mountain Region forms a belt 60 to 100 miles wide that contains most of the large ore deposits. Its longest range measures about 55 miles, the widest 20 miles, and the highest peak more than 10,000 feet above sea level or 7,000 feet above adjacent valleys or plains. Broad plain-forming valleys are exceptional, but several with maximum widths of 20 to more than 30 miles appear in the southeastern portion. 136 p.Additional Links
https://library.azgs.arizona.edu/Language
enSeries/Report no.
Bulletin No. 145Geological Series No. 12