1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Bend Deposit

Occurrence in Taylor county in Wisconsin, United States with commodities Copper, Gold, Silver
Map
XML
JSON
KML
B
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Alteration
  8. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Economic information about the deposit and operations
  14. Mining district
  15. Ownership information
  16. Reserves and resources
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10082576
MRDS ID W060002
Record type Site
Current site name Bend Deposit
Related records 10229786

Geographic coordinates

Geographic coordinates: -90.59595, 45.29472 (WGS84)
Location accuracy 100(meters)
Relative position ALONG THE YELLOW RIVER, ABOUT 6 MILES N OF PERKINSTOWN, WI., Acc Lat/Lon Is From The Usbm Cd-Rom And Is For The Main Entrance.

Site location context

Political divisions (FIPS codes)

Taylor(county)

Wisconsin(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Jump River Fire Tower(quadrangle 1:24,000 scale)

Medford(quadrangle 1:100,000 scale)

Rice Lake(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Chippewa(hydrologic unit)

Chippewa(hydrologic accounting unit)

Chippewa(hydrologic subregion)

Upper Mississippi(hydrologic region)

Federal lands

Chequamegon / Nicolet National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Chequamegon National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Chequamegon-Nicolet National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Wisconsin Taylor

Public Land Survey System information

Meridian Township Range Section Fraction State
33N 2W 35 SW OF NW OF SW Wisconsin

Commodities

Commodity Importance
Copper Primary
Gold Primary
Silver Secondary

Comments on the commodity information

  • STACKED LENS CU DEPOSIT

Alteration

  • (Local) Lower Greenschist

Mineral occurrence model information

Model code 184
USGS model code 28a
Deposit model name Massive sulfide, kuroko
Mark3 model number 93

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite

Nearby scientific data

(1) -90.59595, 45.29472
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Regionally Metamorphosed And Isoclinally Folded Metavolcanic Arc
Type of structure Local
Structure description Felsic Center Associated With Mafic Pile Sequence

Ore body information

  • Name BEND
    Thickness 21.34M
    Length 548.64M
    Depth to top 36.58M
    Depth to bottom 609.6M

Comments on the geologic information

  • THE BEND DEPOSIT IS HOSTED BY A FELSIC CENTER LOCATED STRUCTURALLY ALONG THE SOUTHERN MARGIN OF A MAJOR VOLCANIC ARC AND WITHIN A BACK-ARC BASIN. REGIONAL METAMORPHISM THAT DEVELOPED DURING INTENSE FOLDING HAS OVERPRINTED THE ORIGINAL VOLCANIC AND SEDIMENTARY ROCK UNITS IN THE PRECAMBRIAN TERRANES OF NORTHERN WISCONSIN.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1977
Discoverer Jump River Joint Venture (Wisconsin Mineral Resources Inc And Chevron Usa Inc)

Mining district

District name Ladysmith

Ownership information

  • Type Owner
    Owner Cyprus Amax Minerals Co.; Sharpe Energy And Resources And Freewest

Reserves and resources

  • Type In-situ
    Estimate year 1990
    Total resources 1678000mt ore
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 8.47 g/mt Silver Minor 1990
    Gold Au 2.823 g/mt Gold Major 1990
    Copper Cu 1.49 wt-pct Copper Major 1990
  • Type In-situ
    Estimate year 1991
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 2.77 wt-pct Copper Major 1991
  • Type In-situ
    Estimate year 1991
    Commodity Subtype Grade units Group Importance Year
    Gold Au 1.411 g/mt Gold Major 1991

Comments on the reserve resource information

  • JUMP RIVER JOINT VENTURE RESERVE ESTIMATE AS OF 1990. THE DEPOSIT CONTAINS ONLY MINOR AMOUNTS OF ZN AND HAS NOT DEVELOPED ANY BASE-METAL ZONATION.

Comments on development

  • IN 1995, SIX EXPLORATORY HOLES WERE DRILLED AT BEND. ; ECON.COM: ORIGINALY DISCOVERED AS AN AEROMAGENTIC ANOMALY. DISCOVERED IN 1986 BY SHARPE ENERGY AND RESOURCES AND FREEWEST.

Reference information

Bibliographic references

  • Deposit

    CRAWFORD, M.J., 1996, WISCONSIN EXPLORATION UPDATE: SKILLINGSMINING REVIEW, V. 85, NO. 21, P.4-5.

  • Deposit

    DEMATTIES, T.A., AND POWELL, W.F., 1996, THE BEND DEPOSIT--A N EARLY PROTEROZOIC COPPER-GOLD VMS DEPOSIT, IN LABERGE, G.L., ED., VOLCANOGENIC MASSIVE SULFIDE DEPOSITS OF NORTHERN WISCONSIN--A COMMEMORATIVE VOLUME: INSTITUTE ON LAKE SUPERIOR GEOLOGY, PROCEEDINGS, V. 42, PT. 2, P. 143-159.

General comments

Subject category Comment text
Deposit APPLICATION MADE FOR BLM PERFERNCE RIGHT LEASE. THE BULK OF THE DEPOSIT CONSISTS OF TWO STEEPLY DIPPING, STACKED, PROXIMAL MASSIVE AND SEMIMASSIVE SULFIDE LENSES DEVELOPED AT OR NEAR THE STRATIGRAPHIC TOP OF AN ALTERED QUARTZ-CRYSTALL FELSIC TUFF UNIT. THIS IS A CU-TYPE VOLCANOGENIC MASSIVE DEPOSIT FORMED IN THE BACK-ARC BASIN SEQUENCE.
Deposit THE DEPSOIT IS LOCATED IN THE CHEQUAMEGON NATIONAL FOREST. LADYSMITH-RHINELANDER VOLCANIC COMPLEX IS COVERED BY GLACIAL DEPOSITS UP TO 200 FT THICK, AND BEDROCK OUTCROPS ARE RELATIVELY RARE.
Deposit Discovery Year: 1977-1978; 1986

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-95 Nicholson, S.W. U.S. Geological Survey
Updater 01-APR-96 Sutphin, David M. U.S. Geological Survey
Editor 01-MAY-97 Mason Jr., G.T. U.S. Geological Survey

Beyond USGS

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

Maps centered on this site