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Xincheng Gold Mine

Plant in Shandong [Shantung], China with commodities Gold, Silver
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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. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Mining district
  11. Mineral rights holdings
  12. Ownership information
  13. Production statistics
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10183298
MAS/MILS ID 5700450021
Record type Site
Current site name Xincheng Gold Mine

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: 120.15837, 37.38011 (WGS84)
Location accuracy 5000(meters)

Site location context

Political divisions (FIPS codes)

Shandong [Shantung](province)

China(country)

Asia(continent)

Land(continent)

Geographic areas

Country State
China Shandong [Shantung]

Commodities

Commodity Importance
Gold Primary
Silver Primary

Materials information

Materials Type of material
Pyrite Unknown

Nearby scientific data

Ore Body (1) 120.15837, 37.38011
ListMap

Economic information

Ore body information

  • Thickness 1237.6M
    Length 300M
    Width 7M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 SHEAR ZONE
    Shape of Orebody #1 TABULAR
    Type of Orebody #2 DISSEMINATED
    Shape of Orebody #2 LENTICULAR
    Primary mode of Origin HYDROTHERMAL
    Secondary mode of Origin METAMORPHISM
    Primary Ore Control FRACTURING
    Secondary Ore Control FAULTING
    Type of Wallrock Alter. #1 SERICITIC
    Type of Wallrock Alter. #2 PYRITIZATION
    Date of Last Modification 920618

Comments on the geologic information

  • SULFIDE MINERALS ARE HIGHLY ASSOCIATED WITH THE GOLD, REQUIRING FLOTATION.
  • THE GOLD OCCURS ON THE SURFACE OF PYRITE AND IN FLAKES AND GRANULES.ORE BODY DIPS AT 29 DEGREES. THE THICKNESS OF THE ORE BODY IS CALCULATED USING THE DIP GIVEN AND A VERTICAL DEPTH OF 600M, WHERE THE ORE BODY IS STILL OPEN.GRADE DECREASES AND AVERAGE GRADE IS 6 G/T OF ORE.

Economic information about the deposit and operations

Operation type Underground
Development status Plant
Commodity type Metallic
Significant Yes
Mining method Filled Stopes - Inclined Cut and Fill
Year of first production 1980
Plant type Beneficiation (Mill)
Plant subcategory Flotation
Milling method Flotation

Mining district

District name Ye Xian

Mineral rights holdings

Type of mineral rights Other

Ownership information

  • Type Owner
    Owner Shandong Gold Bureau, State Gold Bureau Of China
    Interest 100
    Home office China Pr
    Year 1992
  • Type Operator
    Owner Xincheng Gold Mine
    Home office China Pr
    Year 1992

Production statistics

  • Year 1980
    Description Initial Production Capacity 500 Mt Ore/Day
  • Year 1992
    Description Current Production 1000 Mt Ore/Day

Comments on the production information

  • AU AND AG DORE BULLION FROM SMELTER ARE SOLD TO THE BANK OF CHINA FOR REFINING AND MARKETING.
  • ALL CALCULATIONS ARE MADE ASSUMING OVERALL RECOVERY OF 92% GOLD AND SILVER BULLION FROM THE SMELTER ARE PRODUCED INTO 25 KG BARS.

Comments on the reserve resource information

  • PRESENTLY, XINCHENG HAS 25 YEARS PROVED RESERVES. THE RESERVES ABOVE 480M ARE CLASSIFIED AS PROVED, AND FROM 480M TO 600M AS POSSIBLE. 4.3 MILLION MT AT 7.7 G/T USING THE MINE DEPTHS MENTIONNED ABOVE, THE DIP OF THE ORE BODY, AND AN AVERAGE DENSITY OF 2.7 MT ORE/CU-M, APPROXIMATE VALUES FOR THE RESERVES CAN BE GENERATED. IF ALL VARIABLES ARE ACCURATE, THERE ARE ABOUT 7,700,000 MT ORE PROVED AND 7,017,000 MT POSSIBLE RESERVES. HOWEVER, AS MENTIONNED ON PAGE 30 OF REFERENCE 1, GRADE AND THICKNESS OF THE ORE DECLINE WITH DEPTH. ALSO, IT IS UNKNOWN HOW DILUTION FACTORS WOULD AFFECT THESE APPROXIMATIONS.

Workings at the site

  • Type of workings Underground
    Overall depth 340M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ACTUAL
    Mining Method INCLINED CUT AND FILL 10-65
    Hardness of Rock UNKNOWN
    Rock Characteristics UNKNOWN
    Rock Support Chars. OTHER
    Mine Support Chars. POST, HEADBOARD, CAPS, ROOF BOLTS
    Number of Shafts 2
    Number of Inclines 1
    1st Condition of Workings OPEN
    Capacity 1100
    Capacity Units MT ORE/DAY
    Operating Days per Year 300
    Operating Shifts per Day 3
    Year of Information 1992

Comments on other economic factors

  • THERE ARE TWO VERTICAL SHAFTS. THE NEW SHAFT WILL BE USED FOR HOISTING ORE FROM ONE LEVEL. THIS NEW 5-M DIAMETER VERTICAL SHAFT IS BEING SUNK TO 500M AND WILL BE EQUIPPED WITH ONE CAGE AND ONE SKIP. THE GROUND-MOUNTED FRICTION HOIST IS THE FIRST OF ITS TYPE TO BE INSTALLED IN CHINA. BOLTING AND MESH ARE USED FOR ROCK SUPPORT. FOR ACCESS, THERE IS A RAMP FOR TRACKED VEHICLES FROM THE SURFACE TO THE 280-M LEVEL TO FACILITATE THE TRACKLESS MECHANIZATION. 300 DAYS/YR WORKED AND 3 SHIFTS/DAY ARE ASSUMED VALUES.
  • THE MILLING CAPACITY IS ESTIMATED BASED ON THE GIVEN MINE CAPACITY(1,000 MT ORE/DAY). BASED ON THE ASSUMED 330 DAYS/YR WORKED, MILLING CAPACITY WOULD BE 300,000 MT ORE/YR(909 MT/DY). 3 SHIFTS/DAY IS AN ASSUMED SCHEDULE.
  • THIS MINE IS MINING HIGH GRADE(7-8 G/T) AND HIGH SILVER GRADE (8.19 G/T), HOWEVER, AVE.GRADE OVER THE MINE LIFE IS 6 G/T. ALL CALCULATION IS BASED ON THE AVE. GRADES AND 10% DILUTION

Reference information

Bibliographic references

  • Deposit

    "GOLD MINING IN CHINA", WYLLIE, ROBERT J. M.(EDITOR), EN-

  • Deposit

    GINEERING AND MINING JOURNAL: THE INTERNATIONAL MINING

  • Deposit

    MAGAZINE, MACLEAN HUNTER, APRIL, 1992.

  • Deposit

    CHINA GOLD INDUSTRY INDEX, CHANGCHUN GOLD RESEARCH

  • Deposit

    INSTITUTE, CHINA, 1991, P. 213. (IN CHINESE)

Reporter information

Type Date Name Affiliation Comment
Reporter 07-JUL-93 Slater, Linda C. U.S. Bureau of Mines

Beyond USGS

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

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