Busch Creek Mine, Valdez Creek Mining District, Matanuska-Susitna Borough, Alaska, USAi
Regional Level Types | |
---|---|
Busch Creek Mine | Mine |
Valdez Creek Mining District | Mining District |
Matanuska-Susitna Borough | Borough |
Alaska | State |
USA | Country |
This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84):
62° 28' 33'' North , 147° 44' 20'' West
Latitude & Longitude (decimal):
Type:
KΓΆppen climate type:
Mindat Locality ID:
196707
Long-form identifier:
mindat:1:2:196707:7
GUID (UUID V4):
65701b3f-9f38-4d1c-9d72-2f973c86b12c
MAS/MIL number 0020760052.
Location: Placer workings are between an elevation of about 3,500 to 3,900 feet in upper Busch Creek, a tributary of Goose Creek. Claims extend from the SW1/4 sec. 34 to the SE1/4 sec. 23., T. 28 N., R. 9 E., Seward Meridian. The coordinates are about in the center of the claims. The location is accurate to within 1/2 mile.
Geology: Upper Busch Creek drains an area of granodiorite (Csejtey and others, 1978), but bedrock is not exposed at the mine site. Placer gold in Busch Creek occurs in at least two glaciofluvial bench gravels as well as in the active stream bed. The gold may occur on clay-rich false bedrock (Kurtak and others, 1992). The gold particles are flat and up to 2 mm in diameter, although most are finer (0.5 mm). Miners report finding native mercury on gold flakes from virgin gravels. A 0.15-mm-long grain of isoferroplatinum was identified by Kurtak and others (1992). Stream-sediment samples collected by the U.S. Bureau of Mines contain more than 10 parts per million gold, and a placer concentrate sample contains 1,060 parts per billion platinum and 120 parts per billion palladium (Balen, 1990). Bench gravel samples contain up to 0.012 ounce of gold per cubic yard and 480 parts per billion platinum (Kurtak and others, 1992). Abundant magnetite hinders gold recovery. Shaft sinking started in the early 1900's (Kurtak and others, 1992). In 1988, a mining operation processed 1000 cubic yards per day of bank-run material through a 7-jig plant. Production of 150 ounces of gold was reported in 1988; the estimated average grade is 0.025 ounce of gold per cubic yard (Balen, 1990). Jig- and centrifuge-type concentrators have improved gold recovery. As of January 1, 2000, a block of approximately 45 state claims and 2 prospecting sites covered this deposit (Northern Associates Inc., written communication, 2001).
Workings: Shaft sinking started in the early 1900's (Kurtak and others, 1992). In 1988, a mining operation processed 1000 cubic yards per day of bank-run material through a 7-jig plant. Stream sampling by the U.S. Bureau of Mines (Balen, 1990; Kurtak and others, 1992). Mining claims include Pearly 1, Busch Creek 1-18, Got-cha and Golden Goose 1-4 (Kurtak and others, 1992). As of January 1, 2000, a block of approximately 45 state claims and 2 prospecting sites covered this deposit (Northern Associates Inc., written communication, 2001).
Age: Quaternary placer.
Production: Production of 150 ounces of gold was reported in 1988; the estimated average grade is 0.025 ounce of gold per cubic yard (Balen, 1990). Jig- and centrifuge-type concentrators have improved gold recovery.
Reserves: A large potential resource is in the upper glaciofluvial bench gravels, and significant gold is reported in the gravels 2 1/2 miles downstream from the mine (Kurtak and others, 1992).
Commodities (Major) - Au; (Minor) - Hg, Pd, Pt
Development Status: Yes; small
Deposit Model: Placer Au-PGE (Cox and Singer, 1986; model 39a)
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
4 valid minerals.
Detailed Mineral List:
β Gold Formula: Au |
β Isoferroplatinum Formula: Pt3Fe |
β Magnetite Formula: Fe2+Fe3+2O4 |
β Mercury Formula: Hg |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 1 - Elements | |||
---|---|---|---|
β | Gold | 1.AA.05 | Au |
β | Mercury | 1.AD.05 | Hg |
β | Isoferroplatinum | 1.AG.35 | Pt3Fe |
Group 4 - Oxides and Hydroxides | |||
β | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
List of minerals for each chemical element
O | Oxygen | |
---|---|---|
O | β Magnetite | Fe2+Fe23+O4 |
Fe | Iron | |
Fe | β Isoferroplatinum | Pt3Fe |
Fe | β Magnetite | Fe2+Fe23+O4 |
Pt | Platinum | |
Pt | β Isoferroplatinum | Pt3Fe |
Au | Gold | |
Au | β Gold | Au |
Hg | Mercury | |
Hg | β Mercury | Hg |
Other Databases
Link to USGS - Alaska: | TK107 |
---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to
visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders
for access and that you are aware of all safety precautions necessary.