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Royal Mountain Mine, Greaterville, Greaterville District, Santa Rita Mts, Pima Co., Arizona, USA

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Latitude & Longitude (WGS84): 31° 45' 18'' North , 110° 46' 45'' West
Latitude & Longitude (decimal): 31.75500,-110.77917
GeoHash:G#: 9t9hxhv46
Locality type:Mine
Köppen climate type:BSk : Cold semi-arid (steppe) climate


‡Ref.: Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 153, 155.

Wilson, E.D. (1927), Arizona gold placers, 2nd. ed. (revised), University of Arizona Bull. 124: 36.

Drewes, Harald (1970) Structural control of geochemical anomalies in the Greaterville mining district, southeast of Tucson: U.S. Geological Survey Bulletin 1312-A, p. A1-A49, 1 sheet, scale 1:24,000.

Drewes, H.D. (1971) Geologic map of the Sahuarita quadrangle, southeast of Tucson, Pima County, Arizona: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-613, 1 sheet, scale 1:48,000.

Niemuth, N.J. & K.A. Phillips (1992), Copper Oxide Resources, Arizona Department of Mines & Mineral Resources Open File Report 92-10: 13 (Table 1).

Arizona Bureau of Mines file data.

MRDS database Dep. ID file #10039496, MRDS ID #M050168; and, Dep. ID #10137737, MAS ID #0040190552.

A former small underground Cu-Au-Ag-Pb-Zn mine/occurrence located in the SW¼ sec. 26, T.19S., R.15E. (Sahuarita 15 minute topo map), about 2 miles SW of Greaterville, on a small gulch 1/8 mile north of Fish Canyon, at an elevation of 5,655 feet. Located 37 miles SE of Tucson. Produced 1912-1913.

Mineralization is a 2 foot wide quartz-baryte vein that dips 30º SW in granite with a tabular ore body. The croppings are stained with iron and in places with copper carbonates, which are reported to carry some silver. Host rock units include the Willow Canyon Formation of Cretaceous conglomerate-siltstone, and the Glance Conglomerate. Associated rock unit is quartz latite at 56 ± 2MY and granodiorite at 1450 ± 10MY.

Local structures include thrust and normal faulting, fracture zones, homoclinal. Regional trends include tilting and broad open folds in the south and extensive faulting in the north.

Workings include a 75 foot long crosscut tunnel, two 80 foot deep shafts and drifts. No production record.

Regions containing this locality

Sonoran Desert, North America

Desert - 1,135 mineral species & varietal names listed

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


4 valid minerals.

Detailed Mineral List:

Cerussite
Formula: PbCO3
Description: Starts as a mixture with the galena within a few feet of the surface.
Reference: Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 155.
Galena
Formula: PbS
Reference: Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 155.
Galena var: Argentiferous Galena
Formula: PbS
Reference: Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 155.
Gold
Formula: Au
Reference: Wilson, E.D. (1927), AZ gold placers, 2nd. ed. (revised), Univ. AZ Bull. 124: 36.
Sphalerite
Formula: ZnS
Description: A little is present.
Reference: Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 155.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
Galena2.CD.10PbS
var: Argentiferous Galena2.CD.10PbS
Sphalerite2.CB.05aZnS
Group 5 - Nitrates and Carbonates
Cerussite5.AB.15PbCO3

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
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
Sphalerite2.8.2.1ZnS
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Cerussite14.1.3.4PbCO3
Unclassified Minerals, Rocks, etc.
Galena
var: Argentiferous Galena
-PbS

List of minerals for each chemical element

CCarbon
C CerussitePbCO3
OOxygen
O CerussitePbCO3
SSulfur
S Galena (var: Argentiferous Galena)PbS
S GalenaPbS
S SphaleriteZnS
ZnZinc
Zn SphaleriteZnS
AuGold
Au GoldAu
PbLead
Pb Galena (var: Argentiferous Galena)PbS
Pb CerussitePbCO3
Pb GalenaPbS

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]

Campanian - Oxfordian
72.1 - 163.5 Ma



ID: 2737085
Cretaceous to Late Jurassic sedimentary rocks with minor volcanic rocks

Age: Mesozoic (72.1 - 163.5 Ma)

Stratigraphic Name: Temporal Formation; Bathtub Formation; Sand Wells Formation; Fort Crittenden Formation; McCoy Mountains Formation

Description: Sandstone and conglomerate, rarely forms prominent outcrops; massive conglomerate is typical near base of unit and locally in upper part. These deposits are nonmarine except in southeastern Arizona, where prominent gray marine limestone (Mural Limestone) forms the middle of the Bisbee Group. Sandstones are typically medium-bedded, drab brown, lithic-feldspathic arenites. Includes Bisbee Group (largely Early Cretaceous) and related rocks, Temporal, Bathtub, and Sand Wells formations, rocks of Gu Achi, McCoy Mountains Formation, and Upper Cretaceous Fort Crittenden Formation and equivalent rocks. (80-160 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:{arenite,conglomerate}, Minor:{limestone}

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


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