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Ibex Mine (Little Jonny Mine), Breece Hill, Leadville, Leadville District, Lake Co., Colorado, USA

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Latitude & Longitude (WGS84): 39° 14' 45'' North , 106° 13' 58'' West
Latitude & Longitude (decimal): 39.2458333333, -106.232777778


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Mineral List

Mineral list contains entries from the region specified including sub-localities

25 valid minerals.

Regional Geology

This 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 data will improve over time as more accurate maps and data sets are added.

Permian - Pennsylvanian252.17 - 323.2 MaPennsylvanian-Permian sedimentary

Sedimentary

Pennsylvanian298.9 - 323.2 MaMinturn Fm in west-central and south-central and other units

Major:: {sandstone},Minor:: {conglomerate},Incidental:: {shale, limestone}

Arkosic sandstone, conglomerate, shale, and limestone. Includes Madera Fm and Sharpsdale Fm of Chronic (1958) in Sangre de Cristo Range and Gothic Fm of Langenheim (1952) in Elk Mountains. Other units of Middle Pennsylvanian age.

Paleoproterozoic1600 - 2500 MaPaleoproterozoic intrusive and metamorphic terranes

Intrusive and metamorphic terranes

Mixtures of metamorphic and intrusive or plutonic rocks, tracts known as crystalline, migmatitic terranes, moderately to highly metamorphosed rocks of unknown origin with or without intrusions. This classification is inherently prone to variable interpretation, as other compilers might distinguish some packages by their metamorphic or gneissic protoliths, and the associated age ranges may be more variable.


References for regional geology:

Data provided by Macrostrat.org

Garrity, C.P., and Soller, D.R.,. Database of the Geologic Map of North America: adapted from the map by J.C. Reed, Jr. and others (2005). U.S. Geological Survey Data Series 424 .

USGS compilers. State geologic map data. State Maps.

Geological Survey of Canada. Generalized geological map of the world and linked databases. doi:10.4095/195142. Open File 2915d.


Localities in this Region

USA
  • Colorado
    • Lake Co.
      • Leadville District
        • Leadville

The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Emmons, Samuel F. (1886), Geology and Mining Industry of Leadville Colorado.

Loughlin, G. F. (1918), The Oxidized Zinc Ores of Leadville Colorado.

Palache, C., Berman, H. & Frondel, C. (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged, 834pp.: 286.

Mineral and/or Locality  
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