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Dazhuangke Mo-W deposit, Changping District, Beijing Municipality, China

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Porphyry Mo-(W-Sn-Bi) deposit, consisting of veins and stockworks in explosive breccia pipes. The main part of the deposit occurs in a pipe that is 350 to 400 m long and 40 to 90 m thick. The ore minerals occur as disseminations and in veinlets. The host rocks exhibit K feldspar, biotitie, silica, pyrite, beresite, zeolite, and propylite alterations. The deposit is related to Jurassic quartz diorite and quartz monzonite (K-Ar isotopic age: 146-168 Ma) and is controlled by EW-trending fault zones.

Ref.:
- http://wrgis.wr.usgs.gov/open-file/of03-220/DATABASE/lode_deposits.txt





 Map Reference: 40°20'40"N , 116°20'5"E

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Mineral List:
  		•  'Albite-Anorthite Series'
    Reference: [http://wrgis.wr.usgs.gov/open-file/of03-220/DATABASE/lode_deposits.txt]
  		•  Biotite
    Reference: [http://wrgis.wr.usgs.gov/open-file/of03-220/DATABASE/lode_deposits.txt]
  		•  Chalcopyrite
    CuFeS
     
    2
    Reference: [http://wrgis.wr.usgs.gov/open-file/of03-220/DATABASE/lode_deposits.txt]
  		•  Fluorite
    CaF
     
    2
    Reference: [http://wrgis.wr.usgs.gov/open-file/of03-220/DATABASE/lode_deposits.txt]
  		•  'K Feldspar'
    Reference: [http://wrgis.wr.usgs.gov/open-file/of03-220/DATABASE/lode_deposits.txt]
  		•  Magnetite
    Fe
    2+
     
    		Fe
    3+
    2
    		O
     
    4
    Reference: [http://wrgis.wr.usgs.gov/open-file/of03-220/DATABASE/lode_deposits.txt]
  		•  Molybdenite
    MoS
     
    2
    Reference: [http://wrgis.wr.usgs.gov/open-file/of03-220/DATABASE/lode_deposits.txt]
  		•  Pyrite
    FeS
     
    2
    Reference: [http://wrgis.wr.usgs.gov/open-file/of03-220/DATABASE/lode_deposits.txt]
  		•  Quartz
    SiO
     
    2
    Reference: [http://wrgis.wr.usgs.gov/open-file/of03-220/DATABASE/lode_deposits.txt]
  		•  Scheelite
    Ca[WO
     
    4
    		]
    Reference: [http://wrgis.wr.usgs.gov/open-file/of03-220/DATABASE/lode_deposits.txt]
  		•  'Sericite'
    Reference: [http://wrgis.wr.usgs.gov/open-file/of03-220/DATABASE/lode_deposits.txt]
  		•  Sphalerite
    (Zn,Fe
    2+
     
    		)S
    Reference: [http://wrgis.wr.usgs.gov/open-file/of03-220/DATABASE/lode_deposits.txt]
  		•  'Zeolite Group'
    Reference: [http://wrgis.wr.usgs.gov/open-file/of03-220/DATABASE/lode_deposits.txt]


    13 entries listed. 8 valid minerals.

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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Jobs in China Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 2nd Nov 2009 08:15:52