Chandler tunnel (MS 67; Little Ida claim), Summitville District (Summit District), Rio Grande Co., Colorado, USA
|Latitude & Longitude (WGS84):||37° 25' 44'' North , 106° 36' 1'' West|
|Latitude & Longitude (decimal):||37.42889,-106.60056|
|Köppen climate type:||Dfc : Subarctic climate|
Commodities (Major) - Silver, Gold; (Minor) - Copper
Development Status: Past Producer
Deposit Model: 85: Polymetallic veins
Host Rock Unit: Quartz Latite Of South Mountain, Summitville Andesite
Structure: San Juan Volcanic Field, Platoro Caldera, Summitville Caldera, Summitville Fault, South Mountain Dome
Host Rock: Quartz Latite
Tectonic Structure: Central Cordillera (Southern Rocky Mtns)
Commodity ListThis is a list of exploitable or exploited mineral commodities recorded at this locality.
6 valid minerals.
Rock Types Recorded
Select Rock List TypeAlphabetical List Tree Diagram
Entries shown in red are rocks recorded for this region.
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
|Pliocene - Miocene|
2.588 - 23.03 Ma
|Rhyolitic intrusive rocks and flows of late-volcanic bimodal suite|
|Miocene - Eocene|
5.333 - 56 Ma
|Cenozoic volcanic rocks|
Age: Cenozoic (5.333 - 56 Ma)
Stratigraphic Name: San Juan Mountains
Comments: Southern Rocky Mountains
Lithology: Intermediate-felsic volcanic 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.