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Scott claims, Vaca Hills, Silver Bell District, Silver Bell Mts, Pima Co., Arizona, USAi
Regional Level Types
Scott claimsGroup of Claims
Vaca HillsGroup of Hills
Silver Bell DistrictMining District
Silver Bell MtsMountain Range
Pima Co.County
ArizonaState
USACountry

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Latitude & Longitude (WGS84): 32° 26' 35'' North , 111° 31' 54'' West
Latitude & Longitude (decimal): 32.44306,-111.53167
GeoHash:G#: 9tb8w4147
USGS MRDS Record:10137550
Locality type:Group of Claims
Köppen climate type:BSh : Hot semi-arid (steppe) climate
Nearest Settlements:
PlacePopulationDistance
Avra Valley6,050 (2011)20.3km
Red Rock169 (2011)24.3km
Nelson259 (2011)24.6km
Marana41,315 (2017)28.7km
Picture Rocks9,563 (2011)28.9km


A Cu-Pb-Zn-W-Fluorspar group of claims with surface workings located in sec. 28, T11S, R8E. Owned by Rand Bone (1943).

Mineralization is an ore zone striking N30E and dipping 65W (faulting), hosted in diorite. Veinlets parallel the faulting. Vein-fractured quartzose intrusive, veins of fluorite, galena, sphalerite? There is also vuggy quartz + pyrite veinlets. Overall alteration is propylitic but sericite occurs adjacent to the quartz-pyrite veins. Ore control was faulting and fractures. Alteration includes propylitic; sericite-quartz-fluorite.

Workings include 4-5 prospects & a trench.

Regions containing this locality

North America PlateTectonic Plate
Sonoran Desert, North AmericaDesert

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


7 valid minerals.

Detailed Mineral List:

Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Reference: MRDS database Dep. ID file #10039918, MRDS ID #M051104.
Fluorite
Formula: CaF2
Reference: MRDS database Dep. ID file #10039918, MRDS ID #M051104.
Galena
Formula: PbS
Reference: MRDS database Dep. ID file #10039918, MRDS ID #M051104.
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: MRDS database Dep. ID file #10039918, MRDS ID #M051104.
Muscovite var: Sericite
Formula: KAl2(AlSi3O10)(OH)2
Reference: MRDS database Dep. ID file #10039918, MRDS ID #M051104.
Pyrite
Formula: FeS2
Reference: MRDS database Dep. ID file #10039918, MRDS ID #M051104.
Sphalerite ?
Formula: ZnS
Reference: MRDS database Dep. ID file #10039918, MRDS ID #M051104.
Wulfenite
Formula: Pb(MoO4)
Reference: MRDS database Dep. ID file #10039918, MRDS ID #M051104.

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Galena2.CD.10PbS
Pyrite2.EB.05aFeS2
Sphalerite ?2.CB.05aZnS
Group 3 - Halides
Fluorite3.AB.25CaF2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Wulfenite7.GA.05Pb(MoO4)
Group 9 - Silicates
Chrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
var: Sericite9.EC.15KAl2(AlSi3O10)(OH)2

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
Sphalerite ?2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 48 - ANHYDROUS MOLYBDATES AND TUNGSTATES
AXO4
Wulfenite48.1.3.1Pb(MoO4)
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Group 74 - PHYLLOSILICATES Modulated Layers
Modulated Layers with joined strips
Chrysocolla74.3.2.1Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Unclassified Minerals, Mixtures, etc.
Muscovite
var: Sericite
-KAl2(AlSi3O10)(OH)2

List of minerals for each chemical element

HHydrogen
H ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
H Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
H MuscoviteKAl2(AlSi3O10)(OH)2
OOxygen
O ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
O WulfenitePb(MoO4)
O Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
O MuscoviteKAl2(AlSi3O10)(OH)2
FFluorine
F FluoriteCaF2
AlAluminium
Al ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Al Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
Al MuscoviteKAl2(AlSi3O10)(OH)2
SiSilicon
Si ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Si Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
Si MuscoviteKAl2(AlSi3O10)(OH)2
SSulfur
S GalenaPbS
S PyriteFeS2
S SphaleriteZnS
KPotassium
K Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
K MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca FluoriteCaF2
FeIron
Fe PyriteFeS2
CuCopper
Cu ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
ZnZinc
Zn SphaleriteZnS
MoMolybdenum
Mo WulfenitePb(MoO4)
PbLead
Pb GalenaPbS
Pb WulfenitePb(MoO4)

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]

Ypresian - Campanian
47.8 - 83.6 Ma



ID: 2847830
Early Tertiary to Late Cretaceous volcanic rocks

Age: Phanerozoic (47.8 - 83.6 Ma)

Stratigraphic Name: Williamson Canyon Volcanics

Description: Rhyolite to andesite and closely associated sedimentary and near-surface intrusive rocks; commonly dark gray to dark greenish gray or greenish brown. In the ranges west of Tucson, this unit includes thick welded ash-flow tuffs. Volcanic rocks of this unit are inferred to be derived from vents and volcanoes above magma chambers that solidified to form the granitic rocks of map unit TKg. These rocks are restricted to southeastern Arizona except for a small outcrop near Bagdad. (50-82 Ma)

Comments: Related, broadly, to unit TKg 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:{rhyolite,dacite,andesite}, Minor:{clastic}

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)
Banks, N.G. (1976) Field Examination (Scott claims).
Haury, P.S., U.S. Bureau of Mines file No. 463.2/15030.
Haury, P.S., U.S. Bureau of Mines file No. 464.2/1900.
MRDS database Dep. ID file #10039918, MRDS ID #M051104; and, Dep. ID #10137550, MAS ID #0040190658.


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