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Dabusun Lake

Occurrence in Qinghai [Tsinghai], China with commodities Bromine, Halite, Gypsum-Anhydrite, Potassium, Boron-Borates
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Host and associated rocks
  8. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Mining district
  11. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10023640
MRDS ID I001021
Record type Site
Current site name Dabusun Lake
Alternate or previous names Dabuxum Lake

Geographic coordinates

Geographic coordinates: 95.24993, 36.91501 (WGS84)

Site location context

Political divisions (FIPS codes)

Qinghai [Tsinghai](province)

China(country)

Asia(continent)

Land(continent)

Geographic areas

Country State
China Qinghai [Tsinghai]

Comments on the location information

  • IN WEST CHINA. DABUSAN LAKE COVERS AN AREA OF 200 SQ KM.
  • ON NORTH MARGIN OF QINGHAI-TIBET PLATEAU. THIS LAKE IS FOUND IN THE QAIDAM (CHAIDAM) BASIN (SEE MRDS RECORD I000522).

Commodities

Commodity Importance
Bromine Primary
Halite Primary
Gypsum-Anhydrite Primary
Potassium Secondary
Boron-Borates Tertiary

Materials information

Materials Type of material
Brine Ore
Calcite Ore
Carnallite Ore
Gypsum Ore
Halite Ore

Analytical data

Result BRINES ARE NA-MG-CL-RICH TYPE AND SATURATED WITH HALITE

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock
    Stratigraphic age (youngest) Holocene
  • Host or associated Host
    Rock type Sedimentary Rock > Chemical Sediment > Evaporite

Nearby scientific data

(1) 95.24993, 36.91501
ListMap

Economic information

Comments on the geologic information

  • QARHAN CONTAINS 10 SHALLOW PERENNIAL AND EPHEMERAL SALINE LAKES IN AN AREA OF 6000 SQ KM AND ELEVATION OF 2800 METERS. DABUSUN LAKE IS THE LARGEST. ENTIRE PLAIN CONTAINS BRINE AT 1 M BELOW SURFACE. EXTREME ARIDITY AND EVAPORITES BEGAN ABOUT 50,000 YEARS BP.
  • LAKE IS GENERALLY LESS THAN 1 M DEEP.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Non-metallic
Deposit size Large
Significant No

Mining district

District name Qaidam Basin - Qarhan Salt Plain

Reference information

General comments

Subject category Comment text
Deposit 30 M DEPTH OF BRINE. THE SURFACE OF THE PLAIN IS PREDOMINANTLY DRY AND CONSISTS OF A SOLID CRUST OF HALITE. LATE PLEISTOCENE AND HOLOCENE EVAPORITES OCCUR TO DEPTHS OF UP TO 70 M.
Deposit THIS IS A PLAIN OR SUB-BASIN OF THE QAIDAM BASIN.
Deposit DABUSUN IS LARGEST LAKE IN QARHAN SALT LAKE PLAIN. OVER 40 M OF HALITE AND SILICICLASTIC SEDIMENTS HAVE BEEN DEPOSITED IN THE DABUSUN LAKE AREA. CARNALLITE OCCURS ALONG THE LAKE'S SHORES AND IN THE UPPER 10 M OF HALITE AND SEDIMENT. ANHEDRAL CRYSTALS OF CARNALLITE COMMONLY FILL VOIDS BETWEEN HALITE CRYSTALS. THE CARNALLITE IS PROBABLY AN EARLY DIAGENIC CEMENT BASED ON TEXTRURE AND STRATIGRAPHIC POSITION. DABUSUN HAS NA-MG-CL AND NA-MG-K-CL-SO4 BRINES.
Deposit THIS IS A SUB-BASIN OF LAKE QARHAN (QARHAN PLAIN, QARHAN SALT PLAIN) WHICH IN TURN IS A SUB-BASIN OF THE QAIDAM BASIN.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1991 Carbonaro, Marguerite M. (Orris, Greta J.) U.S. Geological Survey
Updater 01-NOV-1993 Orris, Greta J. U.S. Geological Survey

Beyond USGS

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

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