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Portland Tunnel

Occurrence in Multnomah county in Oregon, United States with commodity Mercury
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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. Materials information
  8. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Ownership information
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10041035
MRDS ID M055948
Record type Site
Current site name Portland Tunnel
Related records 10153214

Geographic coordinates

Geographic coordinates: -122.73397, 45.5387 (WGS84)

Site location context

Political divisions (FIPS codes)

Multnomah(county)

Oregon(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Portland(quadrangle 1:24,000 scale)

Vancouver(quadrangle 1:100,000 scale)

Vancouver(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Willamette(hydrologic unit)

Willamette(hydrologic accounting unit)

Willamette(hydrologic subregion)

Pacific Northwest(hydrologic region)

Geographic areas

Country State County
United States Oregon Multnomah

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 001N 001E 30 Oregon

Comments on the location information

  • S/2 SEC 30 LOCATED AT CENTER OF HALF SECTION

Commodities

Commodity Importance
Mercury Primary

Materials information

Materials Type of material
Chalcedony Gangue
Hematite Gangue

Alteration

  • (Local) Replaced By Hematite

Analytical data

Result 11 SAMPLES RANGED FROM TRACE TO 1.0 LB HG PER TON

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt
    Rock unit name Columbia River Basalt
    Rock description Columbia River Basalt
    Stratigraphic age (youngest) Miocene

Nearby scientific data

(1) -122.73397, 45.5387
ListMap

Economic information

Controls for ore emplacement

  • Cinnabar Is Sparsely Distributed In Hematite Seams And Altered Rocks

Comments on the geologic information

  • HR.AGE.MV: BASALT FLO

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Ownership information

  • Type Owner
    Owner City Of Portland

Comments on the workings information

  • TUNNEL 960 FT LONG. CAVED AT PORTAL

Reference information

Bibliographic references

  • Deposit

    BROOKS, H. C., 1963, QUICKSILVER IN OREGON: OREGON DEPT. OF GEOLOGY AND MINERAL INDUSTRIES, BULL. 55, 223 P.

  • Deposit

    MERCURY IN OREGON, 1965, USBM IC 8252 TABLE 26, P. 324.

  • Deposit

    FREDERICK, F., 1945, STATE OF OREGON MAP SHOWING LOCATION OF QUICKSILVER DEPOSITS: OREGON DEPT. OF GEOL. AND MIN. INDUSTRIES, SCALE 1:1,000,000

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1976 Peterson, Jocelyn A. U.S. Geological Survey
Updater 01-MAR-1981 Ferns, Mark L. (Brooks, Howard C.) U.S. Geological Survey
Updater 01-AUG-1993 Gray, Jerry J. Oregon Department of Geology and Mineral Industries

Beyond USGS

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

Maps centered on this site