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Tom Reed Mine (Blue Ridge Mine; Ben Harrison Mine; Big Jim Aztec Mine; Blue Ridge Gold Mines; Red Cloud Mine), Tom Reed vein, Oatman, Oatman District (San Francisco District; Union Pass District), Black Mts, Mohave Co., Arizona, USAi
Regional Level Types
Tom Reed Mine (Blue Ridge Mine; Ben Harrison Mine; Big Jim Aztec Mine; Blue Ridge Gold Mines; Red Cloud Mine)Mine
Tom Reed veinVein
Oatman- not defined -
Oatman District (San Francisco District; Union Pass District)Mining District
Black MtsMountain Range
Mohave Co.County
ArizonaState
USACountry

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Latitude & Longitude (WGS84): 35° 1' 25'' North , 114° 22' 47'' West
Latitude & Longitude (decimal): 35.02361,-114.37972
GeoHash:G#: 9qnxjpz5r
Locality type:Mine
Köppen climate type:BWk : Cold desert climate
Nearest Settlements:
PlacePopulationDistance
Oatman135 (2011)0.5km
Mesquite Creek416 (2011)18.3km
Mohave Valley2,616 (2011)21.5km
Bullhead City39,445 (2017)22.0km
Laughlin7,323 (2011)23.8km


A former underground Au-Ag occurrence/mine located in the NW¼ sec. 23, T19N, R20W, just SE of Oatman, on the Tom Reed vein. Owned by the Gold Road Company; Tom Reed Gold Mines Company (1906- ). Started in 1901. Reopened in 1908 and closed March, 1932.

The Tom Reed deposit occurs in Oatman Andesite and the vein strikes NW-ward and dips steeply NE-ward. Mineralization is a vein deposit. Structure involves NW-trending faults and veins. The Tom Reed vein is offset by the Mallory fault near the Big Jim Mine. The Mallory fault strikes NW but dips 60º to 70º SW. The ore body is lenticular. Pyritized areas are more altered. Bleaching, kaolin, calcite, and chlorite have formed. Ore control involved the vein following the NW-trending fault zone.

Workings include the Tom Reed shaft at 100 feet deep (1933). A 20-stamp mill was erected on site (1904). Production for the period 1908 - 1913 was some $13,053,000 (period values).

Regions containing this locality

North America PlateTectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


8 valid minerals.

Detailed Mineral List:

Calcite
Formula: CaCO3
Reference: MRDS file #10027920.
'Chlorite Group'
Reference: MRDS file #10027920.
Fluorite
Formula: CaF2
Reference: A.I.M.E. Ore Deposits of the Western United States (1933): 166.
Gold
Formula: Au
Description: Lode gold.
Reference: A.I.M.E. Ore Deposits of the Western United States (1933): 166.
Gypsum
Formula: CaSO4 · 2H2O
Reference: MRDS file #10027920.
Hematite
Formula: Fe2O3
Reference: MRDS file #10027920.
Kaolinite
Formula: Al2(Si2O5)(OH)4
Reference: MRDS file #10027920.
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: MRDS file #10027920.
Pyrite
Formula: FeS2
Reference: MRDS file #10027920.
Pyrolusite
Formula: Mn4+O2
Reference: MRDS file #10027920.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
Pyrite2.EB.05aFeS2
Group 3 - Halides
Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Hematite4.CB.05Fe2O3
Pyrolusite4.DB.05Mn4+O2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Gypsum7.CD.40CaSO4 · 2H2O
Group 9 - Silicates
Kaolinite9.ED.05Al2(Si2O5)(OH)4
Unclassified Minerals, Rocks, etc.
'Chlorite Group'-
'Limonite'-(Fe,O,OH,H2O)

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Gold1.1.1.1Au
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
AX2
Pyrolusite4.4.1.4Mn4+O2
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Gypsum29.6.3.1CaSO4 · 2H2O
Unclassified Minerals, Mixtures, etc.
'Chlorite Group'-
Kaolinite-Al2(Si2O5)(OH)4
'Limonite'-(Fe,O,OH,H2O)

List of minerals for each chemical element

HHydrogen
H Limonite(Fe,O,OH,H2O)
H GypsumCaSO4 · 2H2O
H KaoliniteAl2(Si2O5)(OH)4
CCarbon
C CalciteCaCO3
OOxygen
O Limonite(Fe,O,OH,H2O)
O PyrolusiteMn4+O2
O CalciteCaCO3
O HematiteFe2O3
O GypsumCaSO4 · 2H2O
O KaoliniteAl2(Si2O5)(OH)4
FFluorine
F FluoriteCaF2
AlAluminium
Al KaoliniteAl2(Si2O5)(OH)4
SiSilicon
Si KaoliniteAl2(Si2O5)(OH)4
SSulfur
S GypsumCaSO4 · 2H2O
S PyriteFeS2
CaCalcium
Ca FluoriteCaF2
Ca CalciteCaCO3
Ca GypsumCaSO4 · 2H2O
MnManganese
Mn PyrolusiteMn4+O2
FeIron
Fe Limonite(Fe,O,OH,H2O)
Fe HematiteFe2O3
Fe PyriteFeS2
AuGold
Au GoldAu

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

Quaternary - Miocene
0 - 23.03 Ma



ID: 3185380
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. [154]

Tortonian - Bartonian
7.246 - 41.3 Ma



ID: 2807076
Middle Miocene to Oligocene volcanic rocks

Age: Cenozoic (7.246 - 41.3 Ma)

Stratigraphic Name: Peach Springs Tuff; Apache Leap Tuff

Description: Lava, tuff, fine-grained intrusive rock, and diverse pyroclastic rocks. These compositionally variable volcanic rocks include basalt, andesite, dacite, and rhyolite. Thick felsic volcanic sequences form prominent cliffs and range fronts in the Black (Mohave County), Superstition, Kofa, Eagletail, Galiuro, and Chiricahua Mountains. This unit includes regionally extensive ash-flow tuffs, such as the Peach Springs tuff of northwestern Arizona and the Apache Leap tuff east of Phoenix. Most volcanic rocks are 20-30 Ma in southeastern Arizona and 15 to 25 Ma in central and western Arizona, but this unit includes some late Eocene rocks near the New Mexico border in east-central Arizona. (11-38 Ma)

Comments: Original map source: Arizona Geological Survey, DI-8 Geologic Map of Arizona, Digital Spatial data for the Geologic Map of Arizona, v. 3.0, edited by S.M. Richard and S.M. Kneale, 2002, 10 p., 2 DOS HD disks. Arc/INFO export file (.e00) format, scale 1:1,000,000.

Lithology: Major:{basalt,andesite,dacite}, Minor:{rhyolite}

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]

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

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Schrader, F.C. (1909), Mineral deposits of the Cerbat Range, Black Mountains, and the Grand Wash Cliffs, Mohave County, Arizona: USGS Bulletin 397: 167-168, 192-194.
Ransome, F.L. (1923), Geology of the Oatman Gold District, Arizona, USGS Bulletin 743: Plate 1, 4-8, 39-45.
Lausen, C. & E.D. Wilson (1925), Gold and copper deposits near Payson, Arizona, Arizona Bureau of Mines Bulletin 120.
Weed, W.H. (1925), The Mines Handbook: Vol. XVI: 432.
A.I.M.E. Ore Deposits of the Western United States (1933): 166.
USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10027920, 10234593 & 10137837.
USGS 7.5 minute Oatman topo. map; Householder map, Arizona Department of Mineral Resources (ADMR).
Cunningham & Butler, Arizona Bureau of Mineral Resources Bulletin 137.
U.S. Bureau of Land Management District map.


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