The Unnamed Prospect 20-4 is a mine located in Pima county, Arizona.
About the MRDS Data:
All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.
Mine Info
Satelite View
MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.
Unnamed Prospect 20-4 MRDS details
Site Name
Primary: Unnamed Prospect 20-4
Commodity
Tertiary: Copper
Location
State: Arizona
County: Pima
District: Amole District
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Sonoran Desert
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Type: L
Description: See General
Alterations
Alteration Type: L
Alteration Text: Oxidized Pyrite, Limonite Stain.
Rocks
Name: Rhyolite
Role: Host
Age Type: Host Rock
Age Young: Late Cretaceous
Analytical Data
Not available
Materials
Not available
Comments
Comment (Deposit): STONY CRYSTALLIZED RHYOLITE TUFF, POSSIBLY SOMEWAHT SILICIFIED, HAS MINOR PARTLY OXIDIZED PYRITE AND MINOR TO MODERATELY ABUNDANT YELLOW BROWN LIMONITE STAIN. SOME CU-SILICATE ON FRACTURES. STRUCTURE NOTED IS ONE FRACTURE VISIBLE IN SHAFT: MAY OR MAY NOT BE PART OF MAIN FAULT ZONE HERE SEPARATING CAT MTN RHYOLITE AND SHORT'S RANCH ANDESITE (CAT MTN RHYOLITE ONLY ON DUMP). ; INFO.SRC : 3 FIELD OBSERV
Comment (Workings): SHAFT
References
Reference (Deposit): ASHLEY, R. P., 1974 , FIELD EXAM
Arizona Gold
"Where to Find Gold in Arizona" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in Arizona. Read more: Where to Find Gold in Arizona.
