Blue Jay and Roberts Groups

The Blue Jay and Roberts Groups is a copper and iron mine located in Davis county, Utah at an elevation of 5,420 feet.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

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MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.

Site Name

Primary: Blue Jay and Roberts Groups

Commodity

Primary: Copper
Primary: Iron
Tertiary: Barium-Barite

Location

State: Utah
County: Davis
District: Antelope Island Area

Land Status

Land ownership: State
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.

Holdings

Not available

Workings

Type: Surface/Underground

Ownership

Owner Name: Wesley Nelson Jr. And Sr.; Patrick And Noreen Roberts

Production

Not available

Deposit

Record Type: Site
Operation Category: Occurrence
Deposit Type: Vein
Operation Type: Unknown
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Great Basin
Physiographic Detail: Antelope Island

Mineral Deposit Model

Not available

Orebody

Form: TABULAR, IRREGULAR

Structure

Type: R
Description: Wasatch Fault, Thrust Belt

Alterations

Not available

Rocks

Name: Slate
Role: Host
Age Type: Host Rock
Age Young: Neoproterozoic

Name: Slate
Role: Host
Age Type: Host Rock Unit
Age Young: Neoproterozoic

Analytical Data

Analytical Data: AG-.5 PPM8 AU-LESS THAN .02 PPM, CU-3.99%, PB-30 PPM, ZN-PPM.
Analytical Data: ADIT ZA UPPER, GRAB SAMPLE FROM DUMP: AG - .5 PPM, AU- .04 PPM, CU - 1.420%, PB-20 PPM, ZN-45PPM: ADIT 2B, GRAB SAMPLE FROM DUMP: AG-LESS THAN .3 PPM, AU-.30 PPM

Materials

Ore: Malachite
Ore: Barite
Ore: Pyrite
Ore: Chalcopyrite
Ore: Hematite

Comments

Comment (Location): INFO FROM LAND.ST :1977

Comment (Deposit): NORTH ADIT A IS ON 3 FT. QUARTZ VEIN N 88 E 76S, SOUTH ADIT A IS ON 3 FT QUARTZ VEIN N 88 E 75 N; ADIT B IS ON 18 IN. QUARTZ VEIN N 64 E 80 SE; SHAFT C IS ON SHEAR ZONE N 9 W 87 SW; ADIT E FOLLOWS 18 IN. QUARTZ VEIN S 80 W 80 NW; ADIT F IS ON SAME STRUCTURE AS E; PIT G IS PROBABLY ON SAME TREND AS E AND F.

Comment (Workings): NORTH ADIT A IS 20 FT. LONG WITH A 12 FT. DEEP WATER FILLED WINZE, SOUTH ADIT A IS 20 FT LONG; ADIT B IS 35 FT. LONG; SHAFT C IS 30 FT. AND INTERSECTS 30 FT ADIT DRIVEN FROM BELOW; PIT D IS 5 FT DEEP AND 12 FT. IN DIAMETER WITH A 3 FT. DEEP 6 FT. DIAMETER PIT IMMEDIATELY TO THE NORTH; ADIT E IS APPROXIMATELY 50 FT. LONG AND IS PARTIALLY CAVED; SHAFT F IS OVER 60 FT. DEEP; PIT G IS 2 FT. DEEP AND 6 FT. IN DIAMETER.

References

Reference (Deposit): LARSEN, W.N., 1957, PETROLOGY AND STRUCTURE OF ANTELOPE ISLAND, DAVIS CO., UTAH: UNIVERSITY OF UTAH PH.D. DISSERTATION.

Reference (Deposit): NOTORY, R.T., 1958, A GRAVITY AND MAGNETIC STUDY OF ANTELOPE ISLAND,, GREAT SALT LAKE, DAVIS COUNTY, UTAH: UNIVERSITY OF UTAH M.S. THESIS.

Reference (Deposit): TRIPP, B.T., 1983, ON SITE INVESTIGATION: UGMS.

Reference (Deposit): DAVIS, F.D., 1983, GEOLOGIC MAP OF THE CENTRAL WASATCH FRONT, UTAH: UGMS MAP 54-A.

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