NBMG Samplesite 2304

The NBMG Samplesite 2304 is a gold mine located in Humboldt county, Nevada at an elevation of 5,823 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

Satelite View

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: NBMG Samplesite 2304

Commodity

Primary: Gold

Location

State: Nevada
County: Humboldt
District: Gold Run District; Adelaide District

Land Status

Land ownership: BLM Administrative Area
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

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

Not available

Mineral Deposit Model

Model Name: Polymetallic veins

Orebody

Form: TABULAR

Structure

Not available

Alterations

Alteration Type: L
Alteration Text: Silicification Along-Fault Zone

Rocks

Name: Sandstone
Role: Host
Age Type: Host Rock Unit
Age Young: Late Cambrian

Name: Sandstone
Role: Host
Age Type: Host Rock
Age Young: Late Cambrian

Analytical Data

Analytical Data: NBMG SAMPLE 2304 OF SELECT VEIN QUARTZ AND PYRITE-BEARING ROCK, CONTAINS 3% FE, 1% MG, 0.7% CA, 0.2% TI, 500 PPM MN, 30 PPM AG, 70 PPM B, 700 PPM BA, 2 PPM BE, 15 PPM CO, 100 PPM CR, 100 PPM CU, 5 PPM MO, 50 PPM NI, 500 PPM PB, 7 PPM SC, 200 PPM V, 20 PPM Y, 200 PPM ZN, 70 PPM ZR.

Materials

Ore: Gold
Gangue: Quartz
Gangue: Limonite
Gangue: Pyrite

Comments

Comment (Location): OPEN PIT NORTH OF ADELAIDE CROWN MINE . INFO FROM LAND.ST :(1972)

Comment (Development): INACTIVE IN 1984

Comment (Workings): LARGE OPEN CUT UP TO 20 M WIDE AND NEARLY THE SAME DEPTH

Comment (Deposit): PYRITE AND GOLD MINERALIZATION OCCUR IN QUARTZ VEINS, STOCKWORKS AND REPLACEMENTS ALONG A FAULT IN OLIVE SILSTONE AND SANDSTONE, MUCH OF THE PYRITE IS OXIDIZED TO LIMONITE IN THE ZONE. THE ELONGATE OPEN PIT FOLLOWS THE FAULT ZONE; APPARENTLY FAULT BRECCIATION AND LATER SILIFICATION AND VEINING EXTENDED FOR A CONSIDERABLE DISTANCE AWAY FROM THE FAULT. THE MAJORITY OF THE PIT IS IN THE APPARENT HANGING WALL OF THE FAULT, AS A MAJOR STRAND GENERALLY LIES ON THE EAST SIDE OF THE PIT. THE CONTINUATION OF THE VEIN TO THE SOUTH OF THIS PIT PASSES THROUGH PITS OF THE ADELAIDE CROWN MINES, WHERE IT STILL TRENDS DUE NORTH, BUT DIPS 70W.

References

Reference (Deposit): GARSIDE, L.J., 1984, NBMG FIELD EXAMINATION, 21 JUN 84, AND SAMPLE ANALYSIS

Reference (Deposit): VANDERBURG, W.O., 1938, USBM I.C. 6995, P.27.

Nevada Gold

Nevada has a total of 368 distinct gold districts. Of the of those, just 36 are major producers with production and/or reserves of over 1,000,000 ounces, 49 have production and/or reserves of over 100,000 ounces, with the rest having less than 100,000 ounces. Read more: Gold Districts of Nevada.