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Sarqa Pluton

Occurrence in Greenland, Denmark with commodities Platinum, Palladium, Copper, Nickel, Gold, Silver, Iridium, Rhodium, Chromium, Zinc
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Geologic information

Identification information

Deposit ID 10038192
MRDS ID M045493
Record type Site
Current site name Sarqa Pluton

Geographic coordinates

Geographic coordinates: -44.10635, 60.36375 (WGS84)
Relative position IN SARQA FJORD OFF SONDRE SERMILIK
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Geographic areas

Country State
Denmark Greenland

Commodities

Commodity Importance
Platinum Primary
Palladium Primary
Copper Primary
Nickel Primary
Gold Primary
Silver Primary
Iridium Tertiary
Rhodium Tertiary
Chromium Tertiary
Zinc Tertiary

Materials information

Materials Type of material
Bravoite Ore
Chalcopyrite Ore
Chromite Ore
Cubanite Ore
Pentlandite Ore
Antigorite Gangue
Calcite Gangue
Chlorite Gangue
Phlogopite Gangue
Talc Gangue

Analytical data

Result PT = LESS THAN 0.1-10 PPM, PD = LESS THAN 0.1-10 PPM, IR = LESS THAN 0.2-0.2 PPM, RH= LESS THAN 0.8 PPM, AU = LESS THAN 0.1-1.0 PPM, AG = 2-64 PPM, CR = 100-10,000 PPM, NI = 1000-10,000 PPM, CU = 100-60,000. AVERAGE FOR ALL ANALYSIS: PT = 0.71 PPM (44 ANALYSIS), PD = 0.81 PPM (47 ANALYSIS), AU = 0.43 PPM (39 ANALYSIS). AVERAGES FOR ZONE (1) PT = 0.33 PPM (10 ANALYSIS), PD = 0.58 PPM (10 ANALYSIS), IR LESS THAN 0.02, RH LESS THAN 0.01, AU = 0.21 PPM (10 ANALYSIS), AG = 7.4 PPM (5 ANALYSIS), NI = 0.22% (5 ANALYSIS), CU = 0.27% (10 ANALYSIS). ZONE (2) PT = 0.51 PPM (6 ANALYSIS), PD = 0.59 PPM (8 ANALYSIS), IR LESS THAN 0.2, RH LESS THAN 0.7, AU = 0.68 PPM (6 ANALYSIS), AG = 5.0 PPM (4 ANALYSIS), NI = 0.125% (4 ANALYSIS), CU = 0.23% (8 ANALYSIS). ZONE (3) PT = 0.48 PPM (4 ANALYSIS), PD = 2.83 PPM (4 ANALYSIS), IR LESS THAN 0.02, RH LESS THAN 0.7, AU = 5.0 PPM (4 ANALYSIS), AG = 10.5 PPM (2 ANALYSIS), NI GREATER THAN 0.1%, CU = 0.767% (3 ANALYSIS)

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Hornblendite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Hornblendite

Nearby scientific data

(1) -44.10635, 60.36375
ListMap

Ore body information

  • General form DIKE-PIPE LIKE, IRREGULAR, NARROWING TOWARD TOP
    Strike NNE
    Dip STEEP, 50-90
    Thickness 869M
    Width 36M
    Length 1000M

Controls for ore emplacement

  • Rhythmic Layering (Gently Dipping), Cycling Of Layers

Comments on the geologic information

  • GEOL.DESC: 3 ANALYSIS FOR SARQA PLUTON GIVEN BY BERRANGE-PLUTON HAS HORNBLENDITE BORDER GROUP AGAINST COUNTRY ROCK WHICH CHEMICALLY IS IS MONZONITE ALMOST SYENITE WHICH SUGGESTS AFFINITIES WITH SYENOGABBROS

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No
Discovery year 1960
Discoverer M. Loretan
Discovery method Ore-Mineral Not In Place

Comments on the reserve resource information

  • PT = PT + PD; ZONE 1 = 0.8 X 19 X 200 CU. M., ZONE 2 = 0.5 X 20 X 200 CUM. ZONE 3 = 1.25 X 43 X 200 CU. M., PT ORE HIGHLY SPECULATIVE

Comments on the workings information

  • BERRANGE GEOLMAPS AT 1:200

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS M045493

Bibliographic references

  • Deposit

    BERRANGE, J.P., 1970, MEDD. OM GRONLAND, BD 192, NO. 1, P. 43

  • Deposit

    NIELSEN, B.L., 1973, GRONLANDS GEOL. UNDERS., REPT. NO. 56, P. 45

  • Deposit

    1962 GEOLMAP G.S. GREENLAN

General comments

Subject category Comment text
Deposit THREE MINERALIZED ZONES, DATA REFER TO WHOLE PLUTON, THREE ZONES ARE (1) AT 874 M, 80 CM WIDE LAYER HBN PERIDOTITE DIPPING 15 NE, 19 M. LONG CONTAINS 2% SULFIDES. (2) AT 894 M, 50 CM ZONE, ABOUT 20 M. LONG-5 M EXPOSED (3) AT 940 M., 150-100 CM WIDE, HORIZONTAL DIP, 43 M LONG EXPOSURE, AVERAGES 1-3% SULFIDES, LOCALLY TO MATRIX AND/OR MASSIVE ORE

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1975 Page, Norman J. U.S. Geological Survey