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

Maardu

Producer in Estonia with commodities Phosphorus-Phosphates, Limestone, General
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. Host and associated rocks
  7. Nearby scientific data
  8. Geologic structures
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Ownership information
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10106779
MRDS ID ISM0443
Record type Site
Current site name Maardu
Alternate or previous names Seychas Operation ?

Geographic coordinates

Geographic coordinates: 25.06928, 59.38179 (WGS84)

Site location context

Political divisions (FIPS codes)

Estonia(country)

Geographic areas

Country
Estonia

Comments on the location information

  • ABOUT 20 KM EAST OF TALINN

Commodities

Commodity Importance
Phosphorus-Phosphates Primary
Limestone, General Primary

Comments on the commodity information

  • PHOSPHATE

Host and associated rocks

  • Host or associated Host
    Rock type Unconsolidated Deposit > Sand and Gravel
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
    Rock unit name Ontika Stage;Pakerortian;Tiskresk Formation
    Rock description Ontika Stage;Pakerortian;Tiskresk Formation
  • Host or associated Host
    Rock type Sedimentary Rock > Chemical Sediment > Phosphorite

Nearby scientific data

(1) 25.06928, 59.38179
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Pribaltic Phosphorite Basin

Ore body information

  • Depth to top 20M

Comments on the geologic information

  • ; APATITE, GLAUCONITE, QUARTZ; PAKERORTIAN (TOTAL THICKNESS ABOUT 20 M) FROM TOP TO BOTTOM: DICTIONEMA SCHISTS ( 4.5 M); OBOLUS DETRITE ( 0.8 M), 4- 6 % P2O5; OBOLUS SANDSTONE ( 2.8 M); OBOLUS CONGLOMERATE ( 1.6 M), 10-16 % P2O5; SANDSTONES (10 M)

Economic information about the deposit and operations

Development status Producer
Commodity type Non-metallic
Significant No
Year of first production 1920
Year of last production 1982

Mining district

District name Pribaltic Phosphate Basin

Ownership information

  • Type Operator
    Owner Maardu Khimzavod
  • Type Owner
    Owner State Owned

Comments on the production information

  • 250,000 TPY PHOSPHATE CONC. THE SEYCHAS OPENPIT DELIVERS 850,000 TO 900 000 TPY ORE AND ABOUT 500,000 M3 LIMESTONES TO BE USED AS GRAVEL AND BALLAST

Comments on development

  • NON-GEOLOGIC CONSTRAINTS ON DEVELOPMENT OR EXPANSION IN 1-5 YRS. (). ROM-ORES CONTAIN 7-10 % P2O5; CONCENTRATES MAY CONTAIN UP TO 34 % P2O5; 3.2 % CO2; 47.5 % CAO; 0.45 % MGO; 2.7 % F; 2.2 % SIO2; 1.38 % SO3; 4.25 % FES2; 0.28 % AL2O3; 1.03 % FEO. TO MINE 1 TONNE OF ORE, ABOUT 5-7 M3 OF ROCKS ARE MOVED. CONCENTRATES ARE DELIVERED TO THE FERTILIZER COMPLEX IN MAARDU (MAARDU KHIMZAVOD)

Reference information

Bibliographic references

  • Deposit

    MIKHAILOV, A.S., 1984: PHOSPHORITES (RUSSIAN); IN: NON METALLIC USABLE RAW MATERIALS USSR. PETROV, V.P., (EDITOR), MOSCOV, NEDRA, 1984, P.11-29

  • Deposit

    TSVETKOV, YU.I., 1975: PHOSPHORITES (RUSSIAN); IN: GEOLOGIYA SSSR, VOL.1, PART 2, LENINGRAD-NOVGOROD- AND PSKOVS-OBLAST; MOSCOV, NEDRA, 1975

  • Deposit

    LAURINGSON, V. & REYER, A., 1981: USEFUL RAW MATERIALS IN THE ESTONIA SSR AND THEIR EXPLOITATION, (RUSSIAN); TALINN, IZDAT. "PERIODIKA", 1981

  • Deposit

    THE BRITISH SULPHUR CORP. LTD., 1980: WORLD SURVEY OF PHOSPHATE DEPOSITS, 4TH ED., LONDON

  • Deposit

    PHOSPHORIUS & POTASSIUM, NO.87, JAN./FEBR. 1977, P.14, LONDON

General comments

Subject category Comment text
Deposit THIS RECORD WAS COMPILED FOR THE INTERNATIONAL STRATEGIC MINERALS INVENTORY. THE DATA WERE USED IN PREPARATION OF THE USGS CIRCULAR 930 SERIES OF REPORTS. MINERAL RESOURCE CATEGORIES AND CODES HEREIN ARE FROM THE INTERNATIONAL CLASSIFICATION SYSTEM RECOMMENDED BY THE UNITED NATIONS GROUP OF EXPERTS ON DEFINITIONS AND TERMINOLOGY FOR MINERAL RESOURCES. (SEE NATIONAL RESOURCES FORUM, V. 4, NO. 3, P. 307-313.). SURFACE RESOURCES, MINIMUM ESTIMATE: 30 MILLION TONNES OF ORE R1E

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1982 Hofmann, Ursula Bundesanstalt Fuer Geowissenschaften und Rohstoffee (Germany)

Beyond USGS

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

Maps centered on this site