Lupin

Prospect in Alaska, United States with commodities Silver, Gold, Arsenic, Bismuth, Mercury, Antimony

Warning: This record lacks important information: bibliographic references, which we consider necessary for a comprehensive report.

Sections on this page

Identification information
Geographic coordinates
Site location context
Geographic areas
Commodities
Materials information
Alteration
Mineral occurrence model information
Nearby scientific data
Economic information about the deposit and operations
Mining district
Links to other databases
General comments
Reporter information

Geologic information

Identification information

Deposit ID	10307512
Record type	Site
Current site name	Lupin

Geographic coordinates

Geographic coordinates:	-149.62683, 63.22558 (WGS84)
Relative position	The Lupin prospect is at an elevation of about 2,800 feet, on the northwest bank of Bryn Mawr Creek. The map site is in the NE1/4 of sec. 34, T. 19 S., R. 11 W., of the Fairbanks Meridian. The location is accurate to within 1,000 feet.

Site location context

Political divisions (FIPS codes)

Matanuska-Susitna(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Healy A-6(quadrangle 1:63,360 scale)

Healy S(quadrangle 1:100,000 scale)

Healy(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Chulitna River(hydrologic unit)

Susitna River(hydrologic accounting unit)

South Central Alaska(hydrologic subregion)

Alaska(hydrologic region)

Geographic areas

Country	State
United States	Alaska

Commodities

Commodity	Importance
Silver	Primary
Gold	Primary
Arsenic Critical	Secondary
Bismuth Critical	Secondary
Mercury	Secondary
Antimony Critical	Secondary

Materials information

Materials	Type of material
Arsenopyrite	Ore
Chalcopyrite	Ore
Quartz	Gangue

Alteration

(Local) Narrow zones adjacent to the veins are bleached and argillized.

Mineral occurrence model information

Model code	85
USGS model code	22c
Deposit model name	Polymetallic veins
Mark3 model number	46
Model code	104
USGS model code	25a
Deposit model name	Hot-spring Au-Ag
Mark3 model number	45

Nearby scientific data

(1)	-149.62683, 63.22558	ListMap

Economic information

Comments on the geologic information

Geologic Description = The Lupin prospect is about 3,100 feet northeast of the Golden Zone mine (HE043). The country rocks at the prospect are faulted, Triassic redbed sedimentary rocks. The deposit consists of fault-controlled quartz veins containing arsenopyrite and chalcopyrite. The hostrocks adjacent to the veins are bleached and argillized (unpublished report by Addwest Minerals International Ltd., 1997). Drilling has identified sericitized dikes but their relation to the deposit is not clear. The Lupin deposit closely resembles the deposit at the Bunkhouse prospect (HE039).
Age = Late Cretaceous or younger (see HE043).

Economic information about the deposit and operations

Development status	Prospect

Comments on exploration

Status = Active

Mining district

District name	Valdez Creek

Comments on the workings information

Workings / Exploration = Trenching and one drill hole have been completed at the prospect.

Reference information

Links to other databases

Agency	Database name	Acronym	Record ID	Notes
USGS	Alaska Resource Data File	ARDF	HE038

Comments on the references

Primary Reference = Unpublished report by Addwest Minerals International Ltd., 1997

General comments

Subject category	Comment text
Deposit	Model Name = Polymetallic vein or hot-spring Ag-Au (Cox and Singer, 1986; model 22c, 25a)
Deposit	Model Number = 22c, 25a
Deposit	Other Comments = See Bunkhouse (HE039).

Reporter information

Type	Date	Name	Affiliation	Comment
Reporter	07-APR-00	N. Van Wyck	Stevens Exploration Management Corporation

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site

Authoritative Alaska resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.