Schiestler Peak molybdenum prospect

Occurrence in Sublette county in Wyoming, United States with commodity Molybdenum
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. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Land status
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10008508
MRDS ID D000717
Record type Deposit
Current site name Schiestler Peak molybdenum prospect
Alternate or previous names Schiester Peak (note the misspelling), Schiestler Peak, Temple Peak deposit, Temple Pass, Wind River, Unknown, Unidentified Occurrence

Geographic coordinates

Point of reference Geographic coordinates: Elevation UTM Precision Relative position Point location
Main Entrance -109.19806, 42.71889 (WGS84) 3414 10 Klein notes: "GPS reading at workings". This location is very close to that shown on Benedict's Plate 2 for the upper mineralized zone. There are several other subsidiary locations associated with this deposit.
(click for info)
Main Entrance -109.20127, 42.71886 (WGS84) 10 Prospect on topo at 10,800 ft, approx. 270 m west of main adit.
Main Entrance -109.20883, 42.72283 (WGS84) 50 cluster of 3 prospect pits on topo at 10,500 ft. Probably coincident with what Benedict calls the "lower mineralized zone", 50, 50

Site location context

Political divisions (FIPS codes)

Sublette(county)

Wyoming(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Temple Peak(quadrangle 1:24,000 scale)

Pinedale(quadrangle 1:100,000 scale)

Lander(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Big Sandy(hydrologic unit)

Upper Green(hydrologic accounting unit)

Great Divide-Upper Green(hydrologic subregion)

Upper Colorado(hydrologic region)

Federal lands

Bridger-Teton National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Bridger Wilderness(Wilderness)

Wilderness FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Wyoming Sublette

Public Land Survey System information

Meridian Township Range Section Fraction State
6th Principal 032N 104W 25 Wyoming
6th Principal 032N 104W 24 E Wyoming
6th Principal 032N 103W 30 W2 Wyoming
6th Principal 032N 103W 31 N2 Wyoming

Comments on the location information

  • Terry Klein, by GPS, places this prospect at the northwestern of 2 prospects at 11,200 ft. on the Temple Peak topo map on the SW flank of Schiestler Peak.
  • Section, Township, and Range information unverified. Not surveyed or mapped on the topo. Used GIS overlay (see Wilson and others, 2001, USGS OFR-2001-497)
  • This deposit seems to be exposed as 4 veins, one each in secs. 30 an 31 in 32N R103W and secs. 24 and 25 T32N, R104W. (Hausel, 1997, Bull. 70, p. 187, fig. 76). Location is for largest disturbance visible on Google Earth and measured by GPS by T.Klein, USGS.

Commodities

Commodity Importance
Molybdenum Primary

Materials information

Materials Type of material
Molybdenite Ore
Chalcopyrite Ore
Pyrite Ore

Alteration

  • (Local) SILICIFICATION, SERICITIZATION, SAUSSURITIZATION

Analytical data

Result see Benedict, 1982, UW MS thesis.
Result see USGS OFR-82-299.

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
  • Host or associated Associated
    Rock type Metamorphic Rock > Schist
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (oldest) Neoproterozoic
  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite

Nearby scientific data

Main Entrance (1) -109.19806, 42.71889
Main Entrance (2) -109.20127, 42.71886
Main Entrance (3) -109.20883, 42.72283

Economic information

Geologic structures

Type of structure Local
Structure name intrusive dike

Ore body information

  • Name "Temple Peak Deposit" from former record 10080834 (W032211 = 0560350043)
    General form POD
    Strike N17E
    Dip 73 SE
    Thickness 1.07M

Controls for ore emplacement

  • PLUTON CONTACT

Comments on the geologic information

  • Host rock: Precambrian biotite-granite porphyry. Or Precambrian quartz monzonite. Or related rocks. (See geologic map by Benedict, 1982)
  • Orebody description from "Temple Peak Deposit" , former record 10080834 (W032211 = 0560350043) citing an unpublished report for the GSW, Nov. 30, 1955 (see references).

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No
Production years none

Land status

Ownership category National Wilderness
Area name USFS: Wilderness Area

Workings at the site

  • Type of workings Underground
    Name of workings adit

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit Deposit type: disseminated, veinlets. This is a Precambrian vein-type deposit. Do not confuse with typical porphyry-Mo deposits.
Deposit SEVERAL MOLYBDENITE VEINS AND DISSEMINATED ASSOCIATED WITH WEAK ALTERATION NEAR PRECAMBRIAN PLUTON BOUNDARY. (In spite of the word "porphyry", this is NOT a porphyry-type deposit)
Deposit "Significant molybdenum occurrences in the Wind River Mountains are limited to the area centered around Schiestler Peak. The ore mineral, molybdenite (MoS2), occurs in a variety of rock types within the porphyritic quartz monzonite, and is found predominantly within a 4 km (2.5 mi) radius of Schiestler Peak, becoming more concentrated on Schiestler Peak proper. Mineralization is a localized phenomenon associated with late stage crystallizations of the porpyritic quartz monzonite pluton which is concentrated near the pluton's margin. Mineralization is similar in nature to many Precambrian pegmatite-aplite-quartz vein molybdenite deposits found in Canada." (Benedict, 1982, p. 83)
Deposit "The main mineralization is limited to two small pods on Schiestler Peak (plate 2). These zones have been explored, but little if any ore was removed from the sites. The upper zone is the richest and has large grains and rosettes of molybdenite scattered thorughout the locality. This zone appears to be situated in a aplite {...]" (Benedict, 1982, p. 83-84).

Reporter information

Type Date Name Affiliation Comment
Reporter 1974-08-01 King, Robert U. U.S. Geological Survey
Reporter 1999-08-26 Klein, Terry U.S. Geological Survey
Editor 2008-12-11 Wilson, Anna B. U.S. Geological Survey revised 6-23-10, 7-2-10,
Reporter 1977-10-01 Suekawa, Harry S. (Barari, Rachel A.) U.S. Geological Survey former record W032211 = 0560350043 (10080834).
Reporter 1983-12-01 SDSM South Dakota School of Mines and Technology former record W032211 = 0560350043 or newMRDS 10080834 and 10133547.

Beyond USGS

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