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Inaglinsk Massif

Prospect in Russia with commodities Platinum, Palladium, Chromium, Copper, Osmium, Iridium, Ruthenium, Rhodium, Gold
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Geologic information

Identification information

Deposit ID 10097114
MRDS ID M046624
Record type Site
Current site name Inaglinsk Massif

Geographic coordinates

Geographic coordinates: 124.89965, 58.50927 (WGS84)
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Geographic areas

Country
Russia

Comments on the location information

  • ON UPPER INAGLI RIVER, A TRIBUTARY OF THE ALDAN., NORTH MARGIN OF ALDAN SHIELD ; YAKUTSKAYA ASSR

Commodities

Commodity Importance
Platinum Primary
Palladium Primary
Chromium Secondary
Copper Secondary
Osmium Secondary
Iridium Secondary
Ruthenium Secondary
Rhodium Secondary
Gold Secondary

Materials information

Materials Type of material
Cuprite Ore
Sperrylite Ore

Analytical data

Result AVERAGE CONCENTRATION FOR DUNITES
Result WT. %: 1.) WITH ACCESSORY CHROME SPINEL : PT = .00005, PD = .00001 IR = .0000017, RH = .000005, OS = .000001, RU = .0000006. 2) WITH SEGREGATIONS OF CHROME SPINEL: PT = .000054, PD = .00001, IR = .00004, RH = .000027, RU = .00000056. FURTHER ANALYSES IN RAZIN AND KHVOSTOVA, 1965 AND RAZIN, KHVOSTOV AND NOVIKOV, 1965 , SMIRNOV,1974, REPORTS 1-40 G/T PT-METALS IN CHROMESPINEL CONCENTRATE

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Syenite
    Stratigraphic age (youngest) Holocene
    Stratigraphic age (youngest) Late Cambrian
  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Gabbro
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Syenite
  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Peridotite > Dunite

Nearby scientific data

(1) 124.89965, 58.50927
ListMap

Geologic structures

Type of structure Regional
Structure description Ultramafic Body Lies In Fault Zone,On Platform

Ore body information

  • General form DISSEMINATED IN CORE OF CONCENTRICALLY ZONED CONE - SHAPED INTRUSION
    Width 5000M
    Length 5000M

Controls for ore emplacement

  • Pt Mins. Occur In And In Association With Early And Late Magmatic Chrome Spinels As Well As Independently , In Dunite And Chromitite

Comments on the geologic information

  • ULTRAMAFIC BODY CONCENTRICALLY ZONED, CONE - SHAPED, CORE OF PLATINIFEROUS FORSTERITIC DUNITE, CONTACT METAMORPHOSED TO APODUNITE ZONE CAUSED BY POST - JURASSIC ALKALINE EARTH SYENITE PORPHYRIES, ALKALI SYENITES, DIORITE PORPHYRIES. APODUNITE CHANGES GRADUALLY FROM INNER TO OUTER CONTACT FROM PERIDOTITE TO PYROXENITE TO ALKALIC GABBROIDS (SHONKINITE) ALKALI SYENITE. PLATINUM DECREASES IN CONCENTRATION FROM DUNITE CORE TO ALKALIC PERIPHERY.

Economic information

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic
Significant No
Discovery year 1958
Discoverer Rozhkov, Kitsul

Mining district

District name Aldan Shield

Comments on the reserve resource information

  • CHROMITE IN BOTH DISSEMINATIONS AND SCHLIEREN DESCRIBED AS VEINLETS AND SCHLIEREN

Comments on the workings information

  • ROUGHLY CIRCULAR IN MAP VEIN, STEEP CONTACTS WITH SURROUNDING ROCKS

Comments on development

  • ECON.COM: FOR OS AND RU SEE RAZIN AND KHOMENKO, 1969

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS M046624

Bibliographic references

  • Deposit

    ROZHKOV, I. S., V. I. KITSUL, ET. AL., 1962, PLATINA ALDANSKOGO SHGHITA (PLATINUM OF THE ALDAN SHIELD); IZDAT. AKAD. NAUK. SSSR, MOSCOW.

  • Deposit

    RAZIN, L. V., KHOMENKO, G. A., 1969, OSMIUM AND RUTHENIUM IN CHROME - SPINEL FROM PT - BEARING DUNITES. GEOCHEMISTRY INT'L, VOL. 6. NO. 3. PP. 546 - 557

  • Deposit

    RAZIN,L.V.,KHVOSTOV,V.P.,NOVIKOV,V.A.,1965, PLATINUM METALS IN THE ESSENTIAL AND ACCESSORY MINERALS OF ULTRAMAFIC ROCKS, GEOCHEMISTRY INT'L.,V. 2., NO.1, P. 118-131

  • Deposit

    SMIRNOV,V.I.,ED.,1974, ORE DEPOSITS OF THE USSR,VOL.3,IZDATELSTVO NEDRA,MOSCOW.

  • Deposit

    1957 GEOLMAP SHAPOSHNIK, MAKSIMO

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1976 Till, Alison B. U.S. Geological Survey