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Yankee Doodle Mine, Carbonate Hill, Leadville, Leadville District, Lake Co., Colorado, USA

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Latitude & Longitude (WGS84): 39° 14' 45'' North , 106° 16' 46'' West
Latitude & Longitude (decimal): 39.24611,-106.27948
Köppen climate type:Dfc : Subarctic climate


Located on the western slope of Carbonate Hill.
Ref: Geology and Mining Industry of Leadville Colorado, Samuel F. Emmons, 1886
The Oxidized Zinc Ores of Leadville Colorado, G. F. Loughlin, 1918


Mineral List


6 valid minerals.

Regional Geology

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

Paleocene - Late Cretaceous
56 - 100.5 Ma



ID: 3296920
Early white porphyry group

Age: Phanerozoic (56 - 100.5 Ma)

Description: White to light gray, buff weathering, non-porphyritic to porphyritic rhyolite or fine-grained monzogranite that forms sills, dikes and laccolithic bodies in the northern part of the map area. Contains phenocrysts of subhedral to euhedral quartz and conspicuous biotite in an aphanitic to fine-grained groundmass, which consists of quartz, biotite, and rare plagioclase and orthoclase; accessory minerals include magnetite, zircon, apatite, and hornblende (Cappa and Bartos, 2007); coarser grained groundmass observed in thicker sills. Unit was called “early white porphyry” by Emmons and others (1927) and Behre (1953). Correlated with the Pando Porphyry near Gilman and north of Leadville (Tweto, 1951) on the basis of a K-Ar age for the Pando that is 71.8 Ma (Cunningham and others, 1994); in poor agreement with a recent U-Pb zircon age of 64.1±0.9 Ma (Kellogg and others, 2017). A clast of probable early white porphyry collected from a conglomerate immediately east of the Alma quadrangle yielded an age of 64.08±0.11 Ma (Widmann and others, 2005; dating method not stated). Numerous apatite fission-track ages are between about 50–40 Ma (Beaty and others, 1990) and are clearly reset. Unit includes white to light-gray, glassy to finely crystalline rhyolite and quartz latite dikes as wide as about 10 m containing phenocrysts of bipyramidal quartz as long as about 5 mm, feldspar, and biotite; fracture chonchoidal and glassy. Generally nonporphyritic white felsite dikes of Scott (1975) also included in this unit

Reference: Kellogg, K.S., R.R. Shroba, C.A. Ruleman, R.G. Bohannon, W.C. McIntosh, W.R. Premo, M.A. Cosca, R.J. Moscati, T.R. Brandt. Geologic map of the upper Arkansas River valley region, north-central Colorado. doi: 10.3133/sim3382. U.S. Geological Survey Scientific Investigations Map 3382. [186]

Mississippian - Cambrian
323.2 - 541 Ma



ID: 2824051
Leadville Limestone, Williams Canyon Limestone , Manitou Limestone, and Sawatch Quartzite

Age: Paleozoic (323.2 - 541 Ma)

Stratigraphic Name: Leadville Limestone; Williams Canyon Limestone ; Manitou Limestone; Sawatch Quartzite

Lithology: Major:{limestone}, Minor:{quartzite}

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. [133]

Paleoproterozoic
1600 - 2500 Ma



ID: 3192520
Paleoproterozoic crystalline metamorphic rocks

Age: Proterozoic (1600 - 2500 Ma)

Lithology: Orthogneiss/paragneiss

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. [154]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License



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