Data sets of China sedimentary rock-hosted Au deposits: Appendix III and Appendix IV

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What does this data set describe?

Title:
Data sets of China sedimentary rock-hosted Au deposits: Appendix III and Appendix IV
Abstract:
These data sets include deposit description, location, and geochemistry of sedimentary rock-hosted (Carlin-type) Au deposits in P.R. China. Deposit data was compiled by U.S. Geological Survey and Tianjim Geological Academy into a series of tables (.xls and .csv) provided in Open-File Report 02-131, Appendix III and IV. Since the 1980s, Chinese geologists have devoted a large-scale exploration and research effort to the deposits. As a result, there are more than 20 million oz of proven Au reserves in sedimentary rock-hosted Au deposits in P.R. China. Additional estimated and inferred resources are present in over 160 deposits and occurrences, which are undergoing exploration. This makes China second to Nevada in contained ounces of Au in Carlin-type deposits. It is likely that many of the Carlin-type Au ore districts in China, when fully developed, could have resource potential comparable to the multi-1,000-tonne Au resource in northern Nevada.
Supplemental_Information:
The tables represent a series of worksheets that evolved as data was collected. Initial data came from a few China deposit records in the U.S. Geological Survey's Mineral Resources Data System (MRDS). Some field name inconsistencies occur in the worksheets that are remnants from the earlier MRDS field names. For example, the MRDS field STATE NAME in one of the tables is equivalent to the field name PROVINCE in other tables. Some tables represent earlier stages of the data gathering process as reflected by the lesser amount or duplication of data. Only two of the deposit description tables have coordinate information. The fields DEPOSIT NAME or DEPOSIT could be used to link coordinate data to other tables such as the deposit geochemistry.
  1. How might this data set be cited?
    Peters, Stephen G. (editor), Li, Z., Huang, J., and Leonard, C., 2002, Data sets of China sedimentary rock-hosted Au deposits: Appendix III and Appendix IV: U.S. Geological Survey Open-File Report 02-131, U.S. Geological Survey, Reston, VA.

    Online Links:

    This is part of the following larger work.

    Peters, Stephen G. (editor), 2002, Geology, geochemistry, and geophysics of sedimentary rock-hosted Au deposits in P.R. China: U.S. Geological Survey Open-File Report 02-131, U. S. Geological Survey, Reston, VA.

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: 73.0
    East_Bounding_Coordinate: 136.0
    North_Bounding_Coordinate: 55.0
    South_Bounding_Coordinate: 17.0
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
    Calendar_Date: 2002
    Currentness_Reference:
    publication date
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: spreadsheet
  6. How does the data set represent geographic features?
    1. How are geographic features stored in the data set?
      This is a point data set.
    2. What coordinate system is used to represent geographic features?
      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitude and longitude values are specified in Decimal degrees.
  7. How does the data set describe geographic features?
    Appendix_III
    Microsoft Excel worksheet (Source: Peters S.G., 2002)
    DEPOSIT NAME
    Name of deposit
    Ore Control
    Ore control comments
    Appendix_III_deposits
    Microsoft Excel comma separated values files (Source: Peters S.G., 2002)
    DEPOSIT
    Deposit name
    PROVINCE
    Province name
    COUNTY
    County name
    LATITUDE
    Latitude in decimal degree
    LONGITUDE
    Longitude in decimal degrees
    LAT_D_M_S
    Latitude in degrees minutes seconds
    LONG_D_M_S
    Longitude in degrees minutes seconds
    SIZE
    Deposit size
    ValueDefinition
    Ssmall
    Mmedium
    Llarge
    Pproducer
    COMMODITIES
    Commodities present
    HOST AGE
    Host rock age
    HOST ROCK
    Host rock description
    GRADE
    Ore grade in grams per ton
    ALTERATION
    Alteration description
    ORE MINERALS
    Ore minerals present
    Appendix_III_table1
    Microsoft Excel comma separated values file (Source: Peters, S.G., 2002)
    DEPOSIT NAME
    Deposit name
    Province
    Province name
    County
    County name
    Size
    Deposit size
    ValueDefinition
    Ssmall
    Mmedium
    Llarge
    Pproducer
    Reference
    Reference citation
    Appendix_III_table2
    Microsoft Excel comma separated values file (Source: Peters, S.G., 2002)
    MRDS RECORD_NUM
    Mineral Resources Data System record number
    DEPOSIT NAME
    Deposit name
    STATE_NAME
    Province name
    COUNTY_NAME
    County name
    LATITUDE (dd)
    Latitude in decimal degrees
    LONGITUDE (dd)
    Longitude in decimal degrees
    LOCATION
    Location comments
    Appendix_III_table3
    Microsoft Excel comma separated values file (Source: Peters, S.G., 2002)
    DEPOSIT NAME
    Deposit name
    COMMODITY
    Commodities present
    ORE MINERALS
    Ore minerals present
    Non-ore Minerals
    Non-ore minerals present
    Appendix_III_table4
    Microsoft Excel comma separated values file (Source: Peters, S. G., 2002)
    DEPOSIT NAME
    Deposit name
    HOST ROCKS
    Host rock description
    UNIT NAME
    Host rock name
    UNIT AGE
    Host rock age
    Appendix_III_table5
    Microsoft Excel comma separated file (Source: Peters, S.G., 2002)
    DEPOSIT NAME
    deposit name
    TECTONIC SETTING
    Tectonic setting comments
    REGIONAL GEOLOGY
    Regional geology comments
    Appendix_III_table6
    Microsoft Excel comma separated values file (Source: Peters, S.G., 2002)
    DEPOSIT NAME
    Deposit name
    Ore Control
    Ore control comments
    Alteration
    Alteration description
    Appendix_IV
    Microsoft Excel worksheet (Source: Peters, S.G., 2002)
    Sample ID
    Sample collection identifier
    Deposit
    Deposit name
    Area
    Region name
    Description
    Ore host rock comments
    Au
    Au occurrence in ppm
    Ag
    Ag occurrence in ppm
    As
    As occurrence in ppm
    Sb
    Sb occurrence in ppm
    Bi
    Bi occurrence in ppm
    Hg
    Hg occurrence in ppm
    F
    F occurrence in ppm
    W
    W occurrence in ppm
    Cd
    Cd occurrence in ppm
    U
    U occurrence in ppm
    TiO2
    TiO2 occurrence in %
    C
    C occurrence in %
    SiO2
    SiO2 occurrence in %
    S
    S occurrence in %
    K2O
    K2O occurrence in %
    CaO
    CaO occurrence in %
    Cu
    Cu occurrence in ppm
    Pb
    Pb occurrence in ppm
    Zn
    Zn occurrence in ppm
    Ni
    Ni occurrence in ppm
    Co
    Co occurrence in ppm
    Ti
    Ti occurrence in ppm
    Mo
    Mo occurrence in ppm
    Ba
    Ba occurrence in ppm
    Se
    Se occurrence in ppm
    Te
    Te occurrence in ppm
    Sr
    Sr occurrence in ppm
    Table 5-1
    Table is in a .PDF document (Source: Peters, S.G., 2002)
    Sample No
    Sample Number
    Mineral
    Mineral name
    Delta34SVCDT
    Sulfide mineral separates isotope analysis
    Deposit
    Deposit name
    Entity_and_Attribute_Overview:
    Geochemistry (in percent or ppm) fields include Au, Ag, As, Sb, Bi, Hg, F, W, Cd, U, TiO2, C, SiO2, S, K2O, CaO, Cu, Pb, Zn, Ni, Co, Ti, Mo, Ba, Se, Te, Sr.
    A summary of other field names (attributes) and definitions are as follows:
    DEPOSIT          = Deposit name
    DEPOSIT NAME     = Deposit name
    DESCRIPTION      = Ore host rock comments
    PROVINCE         = Province name
    STATE NAME       = Province name
    AREA             = Region name
    COUNTY           = County name
    LATITUDE         = Latitude in decimal degrees
    LONGITUDE        = Longitude in decimal degrees
    LAT_D_M_S        = Latitude in degrees minutes seconds
    LON_D_M_S        = Longitude in degrees minutes seconds
    LOCATION         = Location comments
    SIZE             = Deposit size
    COMMODITIES      = Commodities present
    COMMODITY        = Commodities present
    HOST AGE         = Host rock age
    UNIT AGE         = Host rock age
    HOST ROCK        = Host rock description
    UNIT NAME        = Host rock name
    GRADE            = Grade in grams per ton
    ALTERATION       = Alteration type
    ORE MINERALS     = Ore minerals present
    ORE CONTROL      =  Ore control comments
    NON_ORE Minerals = Non-ore minerals present
    MRDS RECORD_NUM  = U.S. Geological Survey's MInerals Resources Data System record number
    TECTONIC SETTING = Tectonic setting comments
    REGIONAL GEOLOGY = Regional geology comments
    REFERENCE        = Reference citation
    SAMPLE NO        = Sample number
    MINERAL          = Mineral name
    Delta34SVCDT     = Sulfide mineral separates analysis
    

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • Peters, Stephen G. (editor)
    • Li, Z.
    • Huang, J.
    • Leonard, C.
  2. Who also contributed to the data set?
    Tianjin Geological Academy, China Steel Group (formerly Ministry of Metallurgical Industry) of P.R. China
  3. To whom should users address questions about the data?
    Stephen G. Peters
    U.S. Geological Survey
    Geologist
    12201 Sunrise Valley Drive MS-954
    Reston, VA
    USA

    703-648-6327 (voice)
    speters@usgs.gov

Why was the data set created?

The data was prepared in cooperation with the Tianjin Geological Academy to increase the knowledge base of Chinese gold deposits for research, development and for spatial analysis.

How was the data set created?

  1. From what previous works were the data drawn?
    Li and Peters, 1999 (source 1 of 1)
    Li, Zhiping, and Peters, Stephen, G., 1999, Comparative geology and geochemistry of sedimentary-rock-hosted (Carlin-Type) gold deposits in the People's Republic of China and in Nevada, USA: Open-File Report 98-466, U.S. Geological Survey, Reston, VA.

    Online Links:

    Other_Citation_Details: Data are in an Access database (.mdb)
    Type_of_Source_Media: online and CD-ROM
    Source_Contribution:
    Data sources included Chinese internal reports mainly from the Ministry of Metallurgical Industry and Gold Bureau, Tianjin Geological Academy, U.S. Geological Survey's Minerals Resources Data System (MRDS) and USGS geochemistry data.
  2. How were the data generated, processed, and modified?
    Date: 2001 (process 1 of 5)
    Data was gathered from Chinese and English language journals, internal reports and databases of the U.S. Geological Survey and the Tianjin Geological Academy, and the Chinese Gold Bureau as well as from field visits and observations. (The original data in Open- File Report 446 version 1 was updated and corrected over a 5-year period.) Data sources used in this process:
    • Li and Peters (Version 1.3), 2001
    Date: 2001 (process 2 of 5)
    Updates to the database (Of98_466.mde) that include maps and photos of deposits, deposit information, and a geochemical model. The new maps and photos of the deposits can be found in the "MAPS & PHOTOS" section. Photos include SEM photos of ore rock, as well as photos of the deposit itself. The geochemical model can be found in the "GEOLOGY & GEOCHEMISTRY" section. Data sources used in this process:
    • Li and Peters (Version 1.2), 2000
    Data sources produced in this process:
    • Li and Peters (Version 1.3), 2001
    Date: 2000 (process 3 of 5)
    Several modifications and additions were made to the Access Database as follows: (1) Tables were updated with more accurate latitude and longitude locations and new occurrences were added for the sedimentary rock-hosted gold deposits under the "GEOGRAPHY" section. The original number of 114 occurrences in version 1.1 of Open-File Report 98-466 is now 165 occurrences in this version 1.2 and the more accurate locations are now useful for spatial analysis. (2) New Scanning Electron Microscope (SEM) photographs of polished sections from gold ores were added under the "MAPS & PHOTOS" section. A link to these SEM photographs also was added under "MINERALOGY" (found under "GEOLOGY"). (3) Geochemistry tables were added for gold ore specimens collected in 1997 (Hebei, Guizhou and Gangzi Provinces) and in 1999 (Shanzi, Sichuan, and Yunnan Provinces) under the "GEOLOGY & GEOCHEMISTRY" section. Other miscellaneuos editorial adjustments have also been made in version1.2. Data sources used in this process:
    • Li and Peters (Version 1.1), 1999
    Data sources produced in this process:
    • Li and Peters (Version 1.2), 2000
    Date: 1999 (process 4 of 5)
    Data migrated to Microsoft Access database, added PDF interface, released at http://pubs.usgs.gov/of/1998/of98-466/ Data sources used in this process:
    • Li and Peters (Version 1.0), 1998
    Data sources produced in this process:
    • Li and Peters (Version 1.1), 1999
    Date: 30-Jul-2002 (process 5 of 5)
    Creation of original metadata record Person who carried out this activity:
    Lorre Moyer
    U.S. Geological Survey.
    Geologist
    USGS C/O Mackay School of Mines MS-176
    Reno, NV
    USA

    775-784-5552 (voice)
    775-784-5079 (FAX)
    lorre@usgs.gov
  3. What similar or related data should the user be aware of?

How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?
    The tables represent a series of worksheets that evolved as data was collected. Some field name inconsistencies are present for example, the field STATE NAME in one table is equivalent to the field name PROVINCE in other tables, the field DEPOSIT NAME is equivalent to the field DEPOSIT, the field COMMODITIES is the same as the field COMMODITY and the field HOST AGE is the same as the field UNIT AGE. Some tables represent earlier stages of the data gathering process as reflected by the lesser amount or duplication of data. Only two of the deposit description tables, Appendix_III_deposits and Appendix_ III_table2 have coordinate information. The fields DEPOSIT NAME or DEPOSIT could be used to link coordinate data to other tables such as the deposit geochemistry.
  2. How accurate are the geographic locations?
    There are location inaccuracies.
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
    No completeness tests were applied.
  5. How consistent are the relationships among the observations, including topology?
    No consistancy tests were applied

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?
Access_Constraints: None
Use_Constraints:
Any hardcopies utilizing this data set shall clearly indicate its source. If the users have modified the data in any way, they are obliged to describe the types of modifications they have performed. The user specifically agrees not to misrepresent this data set, nor to imply that changes they made were approved by the U.S. Geological Survey.
  1. Who distributes the data set? (Distributor 1 of 1)
    U.S. Geological Survey Information Services
    Box 25286 Denver Federal Center
    Denver, CO
    USA

    303-202-4700 (voice)
    303-202-4188 (FAX)
    custserv@usgs.gov
  2. What's the catalog number I need to order this data set? USGS Open-File Report 02-131
  3. What legal disclaimers am I supposed to read?
    Although all data and software have been used by the U.S. Geological Survey (USGS), no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and related materials and (or) the functioning of the software. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data, software, or related amterials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
  4. How can I download or order the data?

Who wrote the metadata?

Dates:
Last modified: 23-Feb-2015
Metadata author:
Peter N Schweitzer
USGS Midwest Area
Collection manager, USGS Geoscience Data Clearinghouse, http://geo-nsdi.er.usgs.gov/
Mail Stop 954
12201 Sunrise Valley Dr
Reston, VA
USA

703-648-6533 (voice)
703-648-6252 (FAX)
pschweitzer@usgs.gov
Metadata standard:
Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)

This page is <https://geo-nsdi.er.usgs.gov/metadata/open-file/02-131/metadata.faq.html>
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