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Split Rock deposit (Gentry Rock Creek), Chediski Farms (Marley Ranch), Apache Iron Mining District, Navajo Co., Arizona, USAi
Regional Level Types
Split Rock deposit (Gentry Rock Creek)Deposit
Chediski Farms (Marley Ranch)- not defined -
Apache Iron Mining District- not defined -
Navajo Co.County
ArizonaState
USACountry

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Latitude & Longitude (WGS84):
34° 2' 55'' North , 110° 44' 17'' West
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
Young666 (2011)21.6km
Cibecue1,713 (2011)23.3km
Christopher Creek156 (2011)39.2km
Carrizo127 (2011)41.8km
Heber-Overgaard2,822 (2011)43.5km


A Fe deposit located in the center sec. 27, T8N, R15E, G&SRM, 9.3 km (5.8 miles) SSW of Chediski Farms (Marley Ranch), and 3.1 miles NW of Oak Creek Ranch.

Mineralization is a sedimentary iron deposit (Mineral occurrence model information: Model code: 241; USGS model code: 34a; BC deposit profile: F10; Deposit model name: Superior Fe [BC name is Lake Superior & Rapitan types iron-formation]), of hematite ore that occurs in irregular masses hosted in chert of the silicified Mescal Limestone, shale and sandstone, and is overlain by Chediski Sandstone. The ore body is 9.14 meters thick. Associated rocks include Neoproterozoic massive sills of diabase. Local rocks include Middle Proterozoic sedimentary rocks.

Regions containing this locality

North America PlateTectonic Plate
Fort Apache Indian Reservation, Arizona, USAReservation

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


2 valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

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Alphabetical List Tree Diagram

Detailed Mineral List:

Hematite
Formula: Fe2O3
Reference: Moore, Richard T. (1968), Mineral Deposits of the Fort Apache Indian Reservation, Arizona, AZ Bur. of Mines Bull. 177: 34.
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Moore, Richard T. (1968), Mineral Deposits of the Fort Apache Indian Reservation, Arizona, AZ Bur. of Mines Bull. 177: 29, 34.

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Hematite4.CB.05Fe2O3
Magnetite4.BB.05Fe2+Fe3+2O4

List of minerals arranged by Dana 8th Edition classification

Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4

List of minerals for each chemical element

OOxygen
O MagnetiteFe2+Fe23+O4
O HematiteFe2O3
FeIron
Fe MagnetiteFe2+Fe23+O4
Fe HematiteFe2O3

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

Cryogenian - Ectasian
635 - 1400 Ma



ID: 2920469
Middle Proterozoic sedimentary rocks

Age: Proterozoic (635 - 1400 Ma)

Stratigraphic Name: Grand Canyon Supergroup; Chuar Group; Unkar Group; Apache Group; Troy Quartzite

Description: Red-brown shale and sandstone, buff to orange quartzite, limestone, basalt, black shale, and sparse conglomerate. This unit includes the Grand Canyon Supergroup, Apache Group, and Troy Quartzite. These rocks were deposited in shallow marine, coastal nonmarine, and fluvial settings. (700-1300)

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:{shale,sandstone,quartzite}, Minor:{limestone,basalt,black shale}, Incidental:{conglomerate}

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]

Mesoproterozoic
1000 - 1600 Ma



ID: 3188570
Mesoproterozoic sedimentary rocks

Age: Mesoproterozoic (1000 - 1600 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]

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)
Burchard, E.F. (1931) Iron ore on Canyon Creek, Fort Apache Indian Reservation, Arizona, in Loughlin, G.F., and Burchard, E.F., eds., Contributions to economic geology, 1930, Part I--Metals and nonmetals except fuels: U.S. Geological Survey Bulletin 821-C: 51-75. (DOI 10.3133/b821C)
Harrer, C.M. (1964), Reconnaissance of Iron Resources in Arizona, US Bureau of Mines Information Circular 8236: 81.
Moore, R.T. (1968), Mineral Deposits of the Fort Apache Indian Reservation, Arizona, University of Arizona – Arizona Bureau of Mines Bulletin 177: 29, 34.
U.S. Bureau of Mines (1995), Minerals Availability System/Mineral Industry Location System (MAS/MILS), U.S. Bureau of Mines, file ID #0040170211.
USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, deposit ID #10092691 & 10161700.
USGS MRDS ID #M899951.

USGS MRDS Record:10161700
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