Columbia Mine (Josephine claim), Goodsprings, Goodsprings District, Spring Mts, Clark Co., Nevada, USA
|Latitude & Longitude (WGS84):||35° 49' 14'' North , 115° 28' 29'' West|
|Latitude & Longitude (decimal):||35.82056,-115.47472|
|Köppen climate type:||BWk : Cold desert climate|
A former Cu-Ag-Zn-Au-Co mine located in sec. 33, T24S, R58E, MDM, 3.9 km (2.4 miles) WSW of Goodsprings and SE of Shenandoah Peak, on private land. Discovered in 1880. First production was in 1906. Owned by Joseph Dederich (1922). MRDS database stated accuracy for this location is 10 meters.
Mineralization is hosted in dolomite. Controls for ore emplacement included a breccia zone. Cobalt oxide was replacing dolomite country rock along a local fault, forming dendrites. Associated rocks include Paleocene granite. Local rocks include dolomite, limestone, and minor amounts of sandstone and quartzite.
Regional geologic structures include large-scale overthrusts. Local fault occurs W of the shaft.
Workings include underground openings with a length of 152.4 meters and an overall depth of 33.53 meters. The main workings are 2 shafts 800 feet apart.
Production data are found in: Longwell, et al (1965).
15 valid minerals.
This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.
Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org
|Quaternary - Miocene|
0 - 23.03 Ma
|Cenozoic sedimentary rocks|
Age: Cenozoic (0 - 23.03 Ma)
Lithology: Sedimentary rocks
Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. 
|Late Devonian - Middle Devonian|
358.9 - 393.3 Ma
|Carbonate Shelf Sequence - Limestone and minor dolomite|
Age: Devonian (358.9 - 393.3 Ma)
Description: Includes generally cliff-forming, thin- to thick-bedded limestone. These rocks are mainly shallow water subtidal, intertidal, and supratidal deposits formed on a broad inner carbonate shelf (Stewart, 1980). The Devils Gate Limestone and Guilmette Formation in northern Nevada are the principal units, and the Sultan Limestone is included from the southern part of the State. Unit is overlain (usually disconformably) by the Pilot Shale of unit MDcl except in southernmost Nevada where it is overlain by Mississippian carbonate (Mc). It depositionally overlies Middle and Lower Devonian unit Dcd. In a few places, such as southern Nevada and parts of Eureka County, regional mapping did not distinguish the Upper and Middle Devonian section from the Lower Devonian section, and all of the Devonian is included in unit Dc. Rocks mapped as the Simonson Dolomite would fit into this depositional sequence (sequences 9 and 10 of Cook and Corboy, 2004), but they are not differentiated from the underlying dolomites in White Pine or Elko Counties, so they are all included in unit Dcd here, not unit Dc. This unit crops out in Clark, Elko, Eureka, Lander, Lincoln, Nye, and White Pine Counties.
Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052.