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

Evergreen Series

Past Producer in Ontonagon county in Michigan, United States with commodities Copper, Silver
Map
XML
JSON
KML
B
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Alteration
  8. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Economic information about the deposit and operations
  12. Production statistics
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10310196
MRDS ID LW00196
Record type District
Current site name Evergreen Series
Alternate or previous names Evergreen Lodes

Comments on the site names

  • THE EVERGREEN SERIES IS COMPRISED OF THE KNOWLTON, MERCHANT, MASS, NORTH BUTLER, BUTLER, SOUTH BUTLER, OGIMA, AND EVERGREEN LODES.

Geographic coordinates

Geographic coordinates: -88.07447, 47.3675 (WGS84)

Site location context

Political divisions (FIPS codes)

Keweenaw(county)

Michigan(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Deer Lake(quadrangle 1:24,000 scale)

Hancock(quadrangle 1:100,000 scale)

Hancock C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Keweenaw Peninsula(hydrologic unit)

Southcentral Lake Superior(hydrologic accounting unit)

Southern Lake Superior(hydrologic subregion)

Great Lakes(hydrologic region)

Geographic areas

Country State County
United States Michigan Ontonagon

Comments on the location information

  • LOCATION IS FOR ADVENTURE MINE, NEAR CENTER OF THE DISTRICT. THE EVERGREEN LODES ARE DEFINED AS A 500 FOOT THICK SERIES OF BASALTIC LODES WHOSE BASE IS ABOUT 400 - 500 FEET ABOVE THE NO. 8 CONGLOMERATE, AT THE GENERAL HORIZON OF THE WINONA AND ISLE ROYALE LODES TO THE NORTH AND THE FOREST LODE TO THE SOUTH.

Commodities

Commodity Importance
Copper Primary
Silver Secondary

Materials information

Materials Type of material
Copper Ore
Silver Ore
Quartz Gangue
Epidote Gangue
Microcline Gangue
Adularia Gangue
Prehnite Gangue
Datolite Gangue
Hematite Gangue
Analcime Gangue
Pumpellyite-(Mg) Gangue
Chlorite Gangue

Alteration

  • (Local) Silicification, pumpellitization

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt
    Rock unit name Portage Lake Volcanics
    Rock description Portage Lake Volcanics
    Stratigraphic age (youngest) Stenian
    Chronological age 1095

Nearby scientific data

(1) -88.07447, 47.3675
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Syncline
Type of structure Local
Structure description Mass anticline

Comments on the geologic information

  • THE AMYGDALOIDS (LODES) OF THE EVERGREEN SERIES ARE GENERALLY MASSIVE BASALT WITH FEWER AMYGDULES THAN MINERALIZED BASALT FLOWS IN HOUGHTON-KEWEENAW COUNTIES. MINERALIZATION IS USUALLY CONFINED TO WELL-DEVELOPED FLOW-TOP BRECCIAS OR FISSURES, WHICH ARE COMMON IN THE AREA. MINERALIZED AREAS OFTEN ARE BRIGHT RED OR GREEN, CAUSED BY AN ABUNDANCE OF RED FELDSPAR AND GREEN EPIDOTE. NATIVE COPPER IN SMALL AND LARGE MASSES IS IRREGULARLY DISTRIBUTED THROUGH THE LODES. IN THE EVERGREEN LODE (AT THE MASS MINE), MUCH OF THE COPPER WAS PRESENT IN LARGE MASSES -- IN FACT, A RATHER LARGE PERCENTAGE OF THE COPPER FROM ALL THE LODES OF THE EVERGREEN SERIES IS COARSE (BUTLER AND BURBANK, 1929). RICH GROUND IS WHOLLY CONFINED TO FRAGMENTAL PARTS OF A LODE, AND THE AREAS OF GOOD GROUND USUALLY COINCIDE WITH AREAS IN WHICH THE LODE IS ALSO RELATIVELY THICK.

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Significant No
Discovery year 1848

Production statistics

  • Year 1923
    Period 1909-1923
    Accuracy Estimate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major recovered Cu Copper Copper 30168mt

Comments on the production information

  • CUMMULATIVE PRODUCTION FROM LAKE, SOUTH LAKE, ADVENTURE, MICHIGAN, AND MASS MINE, ALL FROM EVERGREEN SERIES.

Comments on the workings information

  • THE BUTLER LODE WAS THE MOST PRODUCTIVE FROM THE EVERGREEN SERIES, WITH EXTENSIVE DEVELOPMENT OF THE MASS MINE.

Comments on development

  • FIRST WORK ON THE EVERGREEN SERIES WAS AT THE PISCATAUQUA MNE. MAJOR PRODUCTION BEGAN AFTER CONSOLIDATION BY THE LAKE MINING COMPANY THAT BEGAN PRODUCTION FROM THE EVERGREEN SERIES IN 1909/

Reference information

Bibliographic references

  • Deposit

    BUTLER, R.S. AND BURBANK, W.S., 1929, THE COPPER DEPOSITS OF MICHIGAN: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 144, 238 P.

  • Deposit

    WILSON, M.L. AND DYL, S.J., III, 1992, THE MICHIGAN COPPER COUNTRY: MINERALOGICAL RECORD, V. 23, P. 1-76.

  • Production

    BUTLER AND BURBANK, 1929.

General comments

Subject category Comment text
Deposit MINES WORKING THE EVERGREEN SERIES OFTEN WORKED MULTIPLE LODES. MINES ON THE BUTLER LODE WERE: MASS MINE, ADVENTURE MINE, SOUTH LAKE MINE, LAKE MINE, NORTH LAKE MINE. MINES ON THE EVERGREEN LODE WERE: MASS MINE ADVENTURE MINE, SOUTH LAKE MINE, LAKE MINE, AND NORTH LAKE MINE. MINES ON THE KNOWLTON LODE WERE: MASS MINE, ADVENTURE MINE, LAKE MINE, AND MICHIGAN MINE. MINES ON THE OGIMA LODE WERE: MASS MINE AND ADVENTURE MINE. ONLY MINOR PRODUCTION FROM THE MASS AND ADVENTURE MINES CAME FROM THE MERCHANT AND NORTH BUTLER LODES.

Reporter information

Type Date Name Affiliation Comment
Reporter 29-MAR-2004 Woodruff, Laurel G. 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