Sandstone copper assessment of the Chu-Sarysu Basin, central Kazakhstan

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Online_Linkage: <http://pubs.usgs.gov/sir/2010/5090/e/>
Publication_Date: 2011
Title:
Sandstone copper assessment of the Chu-Sarysu Basin, central Kazakhstan
Edition: 1.0
Geospatial_Data_Presentation_Form: report and vector digital data
Publication_Information:
Publisher: U.S. Geological Survey
Publication_Place: Menlo Park, California
Originator: Stephen E. Box
Originator: Boris Syusyura
Originator: Timothy S. Hayes
Originator: Cliff D. Taylor
Originator: Michael L. Zientek
Originator: Murray W. Hitzman
Originator: Reimar Seltmann
Originator: Vladimir Chechetkin
Originator: Alla Dolgopolova
Originator: Pamela M. Cossette
Originator: John C. Wallis
Series_Information:
Series_Name: Scientific Investigations Report
Issue_Identification: 2010-5090-E
Description:
Abstract:
Mineral resource assessments represent a synthesis of available information to estimate the location, quality, and quantity of undiscovered mineral resources in the Earth's crust. A probabilistic mineral resource assessment of undiscovered sandstone- copper deposits within the Upper Paleozoic Chu-Sarysu Basin in central Kazakhstan was done as a contribution to a global assessment of mineral resources conducted by the U.S. Geological Survey. The purpose of this study was to (1) delineate permissive areas (tracts) for undiscovered sandstone-hosted copper deposits within 2 km of the surface in this area to be presented at a scale of 1,000,000, (2) provide a database of known sandstone copper deposits and significant prospects in this area, (3) estimate numbers of undiscovered deposits within these permissive tracts at several levels of confidence, and (4) provide probabilistic estimates of amounts of copper (Cu), silver (Ag), and mineralized rock that could be contained in undiscovered deposits within each tract. The assessment was conducted using a three-part form of mineral resource assessment based on mineral deposit models (Singer, 1993 Singer and Menzie, 2010). Delineation of permissive tracts was based on the distribution of a Carboniferous, oxidized non-marine clastic (red bed) stratigraphic sequence that lies between overlying Permian and underlying Devonian evaporite-bearing sequences. Using subsurface information on the extent and depth of this red bed sequence and on structural features that divide the basin into sub-basins, we subdivide the continuous permissive area into four permissive tracts. Structure contour maps, mineral-occurrence databases, drill hole lithologic logs, geophysical maps, soil geochemical maps, locations of producing gas fields, and evidence for former gas accumulations were considered in conjunction with descriptive deposit models and grade and tonnage models to guide our estimates of undiscovered deposits in each tract. The four permissive tracts delineated in this assessment are structural sub-basins of the Chu-Sarysu Basin and range in size from 750 km2 to 65,000 km2. Probabilistic estimates of numbers of undiscovered sandstone copper deposits were made for the 4 tracts. Using these probabilistic estimates, Monte Carlo simulation was used to estimate the amount of contained metals for each tract, which serve as the basis for estimates of their metal endowment. In this assessment we estimate that a mean of 26 undiscovered deposits occur within the Chu-Sarysu Basin containing an arithmetic mean estimate of 21.5 million (or more) metric tons of copper, in addition to the 7 known deposits that contain identified resources of 27.6 million metric tons of copper. Sixty percent of the estimated mean undiscovered copper resources are associated with the two permissive tracts that contain the identified resources; the remaining estimated resources are associated with the two tracts with no known deposits. For the 3 tracts with 95 percent of the estimated mean undiscovered copper resources, the probability that each tract contains its estimated mean or greater is about 40 percent. For the southern tract with 5 percent of the estimated mean undiscovered copper resources, the probability that it contains that amount or greater is 25 percent. This report includes a brief overview of the geologic framework of the Chu-Sarysu Basin and its sandstone copper deposits, a description of the assessment process, a summary of results, and appendixes. Appendixes A through D contain summary information of each tract, as follows: location, the geologic feature assessed, the rationale for tract delineation, tables and descriptions of known deposits and significant prospects, exploration history, model selection, rationale for the estimates, assessment results, and references. The accompanying geodatabase files (feature classes) provide permissive tract outlines, assessment results, and data for deposits and prospects in a GIS format (Appendix F).
Purpose:
This report presents the results of an assessment of Upper Paleozoic Chu-Sarysu sedimentary basin in central Kazakhstan for the occurrence of undiscovered sandstone copper deposits. The study was coordinated by the U.S. Geological Survey (USGS) as part of a cooperative international project to estimate the regional locations and probable quantity and quality of the world's undiscovered nonfuel mineral resources. This research project is developing, testing, and (or) applying a variety of methods to quantitatively assess undiscovered mineral resources to a depth of 1 km or more below the Earth's surface (Briskey and others, 2001, 2007; Schulz and Briskey, 2003). The primary objectives are to identify the principal areas in the world that have potential for selected undiscovered mineral resources using available compiled information about geology, geochemistry, geophysics, and previous exploration results in the context of modern quantitative statistical models. Regional assessment studies like this one compile and integrate existing information using GIS technology so that results can be presented at a scale of 1:1,000,000. Data sets include: databases and maps of the location, size, and geologic type of known mineral deposits and occurrences; maps and explanations of regional geology, metallogeny, tectonics, geochemistry, and geophysics; and available information about regional mineral exploration history. The integrated information is used to delineate tracts of land permissive for particular types of undiscovered nonfuel mineral deposits and to make and constrain probabilistic estimates of the quantity and quality of the undiscovered resources. The resulting quantitative mineral resource assessment then can be evaluated using economic filters and cash flow models for economic and policy analysis, and can be applied to mineral supply, economic, environmental, and land-use planning. Such economic evaluations are not part of this report. In this report, we first present an overview of the geologic setting and history of the Chu-Sarysu Basin. This is followed by a review of the characteristic features of sandstone copper deposits in general and of the giant Dzhezkazgan deposit in particular in order to develop a generalized model for the origin of these deposits in this basin. We then briefly review the mineral assessment methodology that has been developed by researchers at the U.S. Geological Survey. Finally, we summarize our mineral assessment of undiscovered sandstone copper deposits in the Chu-Sarysu Basin. Brief description is given of the data used in the assessment and of the criteria used to delineate the tracts that are permissive for the occurrence of undiscovered deposits of this type, and we compare the local deposits with the global grade-tonnage model to test its appropriateness. Finally, we review the results of the probabilistic assessments of the permissive tracts and the results of the Monte Carlo simulations of the contained metal endowment of each tract.
Supplemental_Information:
The U.S. Geological Survey is conducting a cooperative international project to assess the world's undiscovered nonfuel mineral resources. The Global Mineral Resource Assessment Project (GMRAP) is a research project that will develop and test methods of assessing the undiscovered mineral resources of the terrestrial earth. The primary objectives of the project are to outline the principal areas in the world that have potential for selected undiscovered mineral resources and to estimate the probable amounts of those mineral resources to a depth of 1-2 kilometers (0.6-1.2 miles) below the earth's surface. The project will initially undertake global assessments of copper, platinum-group metals, and potassium (or potash) resources (<http://pubs.usgs.gov/fs/fs053-03/fs053-03.pdf>).
A probabilistic mineral resource assessment of undiscovered (sediment-hosted) sandstone - copper deposits within the Upper Paleozoic Chu-Sarysu Basin in central Kazakhstan was undertaken as a contribution to the global assessment of mineral resources (GMRAP) currently being conducted by the U.S. Geological Survey.
Time_Period_of_Content:
Currentness_Reference: current
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2012
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: 66.198100
East_Bounding_Coordinate: 73.761778
North_Bounding_Coordinate: 48.365624
South_Bounding_Coordinate: 42.600760
Keywords:
Theme:
Theme_Keyword_Thesaurus: none
Theme_Keyword: sediment-hosted copper
Theme_Keyword: sandstone
Theme_Keyword: permissive tract
Theme_Keyword: deposit
Theme_Keyword: prospect
Theme_Keyword: prognostic resource estimate
Place:
Place_Keyword_Thesaurus: International Organization for Standardization (ISO)
Place_Keyword: Central Asia
Place_Keyword: Kazakhstan
Access_Constraints: none
Use_Constraints:
This spatial database is not meant to be used or displayed at any scale larger than 1:1,000,000 (for example, 1:250,000). Any hardcopies utilizing these datasets shall clearly indicate their source. If the user has modified the data in any way, they are obligated to describe the types of modifications they have performed on the hardcopy map. User specifically agrees not to misrepresent these data sets, nor imply that changes they made were approved by the U.S. Geological Survey.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Stephen E. Box
Contact_Organization: U.S. Geological Survey
Contact_Position: project geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 904 W. Riverside Ave
City: Spokane
State_or_Province: WA
Postal_Code: 99201-1087
Country: USA
Contact_Voice_Telephone: 509-368-3106
Contact_Facsimile_Telephone: 509-368-3199
Contact_Electronic_Mail_Address: sbox@usgs.gov
Data_Set_Credit:
Michael L. Zientek and Jane M. Hammarstrom provided a seemingly endless font of patience, guidance and oversight. Stephen E. Box provided the fundamental scientific and geological analysis of disparate data sources, many of which were acquired from the Centre for Russian and Central EurAsian Mineral Studies (CERCAMS) National Museum of History, London and Economic Consulting Ltd., Almaty, Kazakhstan. Boris Syusyura (Economic Consulting Ltd., Almaty, Kazakhstan) kindly shared data and provided personal interpretations to assist in the difficulties that are inherent in multi-national cooperative efforts. Timothy S. Hayes provided significant insight into processes that are responsible for sediment-hosted copper deposits, such as those assessed in this report. Cliff D. Taylor similarly provided insight into the properties and distribution of sediment-hosted copper deposits. Murray W. Hitzman provided invaluable expertise and guidance throughout the actual assessment process (Vancouver, 2009) in order to assure that the assessors were adequately informed and that the assessment outcomes were not unrealistic. Reimar Seltmann provided interpretation and guidance with respect to the CERCAMS data contribution and the assessment process. Vladimir Chechetkin provided a life-time of profound, on-the-ground, hands-on knowledge of the Kazakh sediment-hosted copper potential. Alla Dolgopolova provided real-time, greatly appreciated translation for the USGS scientists when our Russian-speaking guests exhausted their English-speaking abilities. Furthermore, Ms. Dolgopolova contributed her geologic and interpretative expertise (CERCAMS) in order to facilitate the assessment. Pamela M. Cossette provided GIS and editorial support. John C. Wallis (USGS contractor) provided data processing particularly in the great need for extensive translation efforts.
In addition, Heather Parks (USGS contractor) assisted with graphics. USGS colleagues Jane Hammarstrom, Greta Orris, Mark Cocker, and Greg Spanski served as the assessment oversight committee to review the preliminary results. USGS colleagues Rich Goldfarb, Tom Moore, and Connie Dicken provided helpful and timely technical reviews of the final report. USGS colleague Connie Dicken provided a helpful technical review of the GIS data accompanying the final report. Jim Bliss (USGS) provided help on assessment methods.
Cross_Reference:
Citation_Information:
Originator: Boris Syusyura
Originator: Stephen E. Box
Originator: John C. Wallis
Publication_Date: 2010
Title:
Spatial Databases of Geological, Geophysical, and Mineral Resource Data Relevant to Sandstone-Hosted Copper Deposits in Central Kazakhstan
Edition: 1.0
Geospatial_Data_Presentation_Form: report and vector data
Series_Information:
Series_Name: Open-File Report
Issue_Identification: Open-File Report 2010-1124
Publication_Information:
Publication_Place: Menlo Park, California
Publisher: U.S. Geological Survey
Online_Linkage: <http://pubs.usgs.gov/of/2010/1124/>
Data_Quality_Information:
Logical_Consistency_Report: No duplicate features exist.
Completeness_Report:
SIR2011-5090-E includes GIS spatial datasets (ESRI geodatabase feature classes) that describe four sediment-hosted copper tracts located in the Chu-Sarysu basin, Kazakhstan, Central Asia. These areas (tracts) were assessed by the USGS as part of the 2010 Global Minerals Resource Assessment Project and are the result of extensive analysis of data and assets acquired from and shared by CERCAMS and MEC.
Lineage:
Process_Step:
Process_Description:
For details regarding steps taken as complex and disparate data sources were compiled and analyzed, please see this report:
Box, S.E., Syusyura, B., Hayes, T.S., Taylor, C.D., Zientek, M.L., Hitzman, M.W., Seltmann, R., Chechetkin, V., Dolgopolova, A., Cossette, P.M., and Wallis, J.C., 2012, Sandstone copper assessment of the Chu-Sarysu Basin, central Kazakhstan: U.S. Geological Survey Scientific Investigations Report 2010-5090-E.
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Stephen E. Box
Contact_Organization: U.S. Geological Survey
Contact_Position: project geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 904 W. Riverside Ave.
City: Spokane
State_or_Province: WA
Postal_Code: 99201-1087
Country: USA
Contact_TDD/TTY_Telephone: 509-368-3106
Contact_Facsimile_Telephone: 509-368-3199
Contact_Electronic_Mail_Address: sbox@usgs.gov
Attribute_Accuracy:
Attribute_Accuracy_Report:
Attribute accuracy was verified by manual comparison of the source maps with hard copy plots, printouts, and on-screen evaluation.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The horizontal positional accuracy of the polygon features varies: it is dependent on several factors including the original scale of the base maps used in mapping the geology (which was subsequently used to delineate the mineral resource tracts).
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: G-polygon
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.000000
Longitude_Resolution: 0.000000
Geographic_Coordinate_Units: Decimal degrees
Geodetic_Model:
Horizontal_Datum_Name: D_WGS_1984
Ellipsoid_Name: WGS_1984
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257224
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: CS_Assessed_Tracts
Entity_Type_Definition:
ESRI File Geodatabase FEATURE CLASS - describes assessed mineral resource tracts (polygon features) which are permissive for sediment-hosted copper
Entity_Type_Definition_Source:
Singer, D.A., 1993, Basic concepts in three-part quantitative assessments of undiscovered mineral resources: Nonrenewable Resources, v. 2, no. 2, p. 69-81.
Attribute:
Attribute_Label: TRACT_ID
Attribute_Definition: User-defined, unique identifier assigned to permissive tract
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: CODED_ID
Attribute_Definition: Coded, unique identifier assigned to permissive tract
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: TRACT_NAME
Attribute_Definition: Informal (author-defined) name of permissive tract
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: UNREGCODE
Attribute_Definition:
Three digit UN code for the region that underlies most of the permissive tract.
Attribute_Definition_Source:
UN Standard Country or Area Codes for Statistical Use: Composition of macro geographical (continental) regions, geographical sub-regions, and selected economic and other groupings (<http://unstats.un.org/unsd/methods/m49/m49regin.htm>)
Attribute:
Attribute_Label: COUNTRY
Attribute_Definition: Country(ies) in which permissive tract is located
Attribute_Definition_Source: ISO 3166-1 country_name
Attribute:
Attribute_Label: COMMODITY
Attribute_Definition: Primary commodity being assessed
Attribute_Definition_Source: Cu
Attribute:
Attribute_Label: DEP_TYPE
Attribute_Definition: Name of the deposit type assessed
Attribute_Definition_Source: sediment-hosted copper
Attribute:
Attribute_Label: GT_MODEL
Attribute_Definition: Grade-tonnage model used for the undiscovered deposit estimate
Attribute_Definition_Source:
Singer, D.A., Berger, V.I., and Moring, B.C., 2008, Porphyry copper deposits of the world: database, map, and grade and tonnage models, 2008: U.S. Geological Survey Open-File Report 2008-1155, 45 p., accessed January 15, 2009, at <http://pubs.usgs.gov/of/2008/1155/>.
Attribute:
Attribute_Label: GEOLOGY
Attribute_Definition: Geologic feature assessed
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: AGE
Attribute_Definition: Age of geologic feature assessed
Attribute_Definition_Source:
Geologic time terms in USGS Divisions of geologic time (Suggestions to Authors fig. 15, p. 59); Geological Society of America 1999 Geologic time scale; or International Commission on Stratigraphy Geologic Time Scale 2004
Attribute:
Attribute_Label: ASMT_DATE
Attribute_Definition: Year assessment was conducted
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: ASMT_DEPTH
Attribute_Definition:
Maximum depth beneath the Earth's surface used for the assessment, in kilometers.
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: EST_LEVELS
Attribute_Definition:
The set of percentile (probability) levels at which undiscovered deposit estimates were made
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: N90
Attribute_Definition:
Estimated number of deposits associated with the 90th percentile (90 percent chance of at least the indicated number of deposits).
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: N50
Attribute_Definition:
Estimated number of deposits associated with the 50th percentile (50 percent chance of at least the indicated number of deposits). Values for N90 <or=N50 <or= N10<or= N05<or= N01
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: N10
Attribute_Definition:
Estimated number of deposits associated with the 10th percentile (10 percent chance of at least the indicated number of deposits). Values for N90 <or = N50 <or= N10<or= N05 <or=N01
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: N05
Attribute_Definition:
Estimated number of deposits associated with the 5th percentile (5 percent chance of at least the indicated number of deposits).
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: N01
Attribute_Definition:
Estimated number of deposits associated with the 1st percentile (1 percent chance of at least the indicated number of deposits).
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: N_EXPECTED
Attribute_Definition: Expected (mean) number of deposits
Attribute_Definition_Source:
N_Expected = (0.233*N90) + (0.4*N50) + (0.225*N10) + (0.045*N05) + (0.03*N01)
Attribute:
Attribute_Label: S
Attribute_Definition: Standard deviation
Attribute_Definition_Source:
s = 0.121 - (0.237*N90) - (0.093*N50) + (0.183*N10) + (0.073*N05) + (0.123*N01)
Attribute:
Attribute_Label: CV_PERCENT
Attribute_Definition: Coefficient of variance, in percent
Attribute_Definition_Source: Cv = (s/N_Expected) * 100
Attribute:
Attribute_Label: N_KNOWN
Attribute_Definition: Number of known deposits in the tract
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: N_TOTAL
Attribute_Definition: Total number of deposits
Attribute_Definition_Source: N_total = N_Expected + N_Known
Attribute:
Attribute_Label: AREA_KM2
Attribute_Definition: Area of permissive tract, in square kilometers
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: DEPDENSITY
Attribute_Definition:
Deposit density (total number of deposits per square kilometer).
Attribute_Definition_Source: DepDensity = N_total/Area_km2
Attribute:
Attribute_Label: DEPDEN10E5
Attribute_Definition: Deposit density per 100,000 square kilometers
Attribute_Definition_Source: DepDen10E5 = DepDensity*100,000
Attribute:
Attribute_Label: ESTIMATORS
Attribute_Definition: Names of people on the estimation team
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: NOTES
Attribute_Definition: Notes or comments
Attribute_Definition_Source: GMRAP
Detailed_Description:
Entity_Type:
Entity_Type_Label: CS_Deposits_Prospects_AreasPrognosticResourceEstimate
Entity_Type_Definition:
ESRI File Geodatabase FEATURE CLASS - describes deposits, prospects and areas that have prognostic resource estimates (point features) used to delineate the extent of the assessed mineral resource tracts (polygon features) which are permissive for sediment-hosted copper
Entity_Type_Definition_Source: GMRAP
Attribute:
Attribute_Label: GMRAP_ID
Attribute_Definition:
Unique record identifier. Numbers 1 through 710 agree with the DepositID field in Singer and others (2008). Numbers starting with 1000 are from the SE Asia-China-Mongolia assessment (Peters and Nokleberg). Numbers starting with 3000 are from the Mexico assessment (Hammarstrom). Note that the DepositID field in Singer and others (2008) was called MapId in Singer and others (2005); however, some records were deleted, updated, or reclassified in the 2008 release.
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: TRACT_ID
Attribute_Definition:
GMRAP user-defined, unique identifier assigned to permissive tract in which deposit or prospect is located
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: CODED_ID
Attribute_Definition:
GMRAP coded identifier for the permissive tract in the GMRAP permissive tract GIS database
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: TRACT_NAME
Attribute_Definition: GMRAP user-defined informal tract name
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: GROUP_NAME
Attribute_Definition: Group name of multiple sites
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: NAME
Attribute_Definition: Name or identity (where known) of prospect or deposit site
Attribute_Definition_Source: Author(s)
Attribute:
Attribute_Label: NAME_OTHER
Attribute_Definition: Other names used for the site
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: INCLUDES
Attribute_Definition:
Names of deposits that have been combined with the primary deposit as a result of the 2-km aggregation rule used for calculating grades and tonnages
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: BELONGS_TO
Attribute_Definition: Name of district, belt, trend, etc.
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: TYPE
Attribute_Definition: Mineral deposit type
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: SUBTYPE
Attribute_Definition:
SUBTYPE: For the sediment-hosted copper type, deposits and prospects may be classified as the general type or a subtype may be specified in the reference cited. Subtype may be based on reductant and environment or may be based on geologic indication.
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: ASSOC_TYPE
Attribute_Definition: Associated deposit types
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: SITESTATUS
Attribute_Definition:
Prospect or Deposit (Prospect if no grade and tonnage values provided. Deposit if it has grade and tonnage)
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: SITESTATI
Attribute_Definition:
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: SITESTATII
Attribute_Definition:
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: DEVSTATUS
Attribute_Definition:
Development Status - the nature of operations at the time the deposit record was entered or this field was last modified. Values are: Occurrence, Prospect, Producer, Past Producer, Unknown. The category definitions are as follows: Occurrence - Ore mine
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: LATITUDE
Attribute_Definition:
Latitude in decimal degrees. -90.00000 to 90.00000. Negative south of the equator
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: LONGITUDE
Attribute_Definition:
Longitude in decimal degrees. -180.00000 to 180.00000. Negative east of the Greenwich meridian
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: CODE_CNTRY
Attribute_Definition: Country code (from Singer and others, 2005)
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: COUNTRY
Attribute_Definition: Country(countries) in which site is located
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: STATE_PROV
Attribute_Definition: State or province in which site is located
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: BASIN_USGS
Attribute_Definition: ID for oil and gas basin from USGS Energy assessments
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: BASIN_AGI
Attribute_Definition: Value of BASINGEO_I from basins.shp in AGI Datapages 459
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: BASINTELUS
Attribute_Definition: Value of BASIN_ID from Tellus_Sedimentary_Basins_Layer.shp
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: AGE_MA
Attribute_Definition:
Age in millions of years before present. Age is average for geologic era, period, or epoch listed
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: AGE_METHOD
Attribute_Definition:
Method for absolute age or "mid-point" if value is the midpoint of the age range (or geologic time unit)
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: AGE_RANGE
Attribute_Definition: Age of host rock in standard divisions of geologic time
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: AGE_REF
Attribute_Definition: Short reference for age information
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: COMM_MAJOR
Attribute_Definition:
Major commodities in decreasing order of economic importance. Use chemical symbols for commodities
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: COMM_MINOR
Attribute_Definition:
Minor commodities (byproducts, coproducts) in decreasing order of importance
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: COMM_TRACE
Attribute_Definition: Trace commodities
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: TONNAGE_MT
Attribute_Definition: Ore tonnage in millions of metric tons
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: CU_PCT
Attribute_Definition: Average copper grade in weight percent
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: CO_PCT
Attribute_Definition: Average cobalt grade in weight percent
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: AU_G_T
Attribute_Definition: Average gold grade in ppm (=grams per ton)
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: AG_G_T
Attribute_Definition: Average silver grade in ppm (=grams per ton)
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: CON_CU_T
Attribute_Definition: Million metric tons of contained copper
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: COMMENTS
Attribute_Definition: Miscellaneous comments
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: HOSTROCKS
Attribute_Definition: Simplified lithologic description of host rocks
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: UNIT
Attribute_Definition: Geologic map unit in which site is located
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: FOOTWALL
Attribute_Definition: Rock types of footwall rocks
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: HANGWALL
Attribute_Definition: Rock types of hangingwall rocks
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: MINERALOGY
Attribute_Definition: Ore and gangue minerals in approximate order of abundance
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: SOURCE
Attribute_Definition: Data table source
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: UPDATER
Attribute_Definition: Last editor or updater of record
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: UPDATE
Attribute_Definition: Date LastEditor edited, changed or added data
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: ED_COMMENT
Attribute_Definition: Editor's comments
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: REF_SHORT1
Attribute_Definition: Short reference
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: REF_SHORT2
Attribute_Definition: Short reference
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: GEOLPROV
Attribute_Definition:
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: TCTNIC_SET
Attribute_Definition:
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: COMPLEX
Attribute_Definition:
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: GRADE_LEVL
Attribute_Definition:
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: ENRICHMENT
Attribute_Definition:
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: OTHER
Attribute_Definition:
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: DEPTYPE_OLD
Attribute_Definition:
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: FORM
Attribute_Definition:
Attribute_Definition_Source: GMRAP
Detailed_Description:
Entity_Type:
Entity_Type_Label: CS_Assessed_Tracts_Subunits
Entity_Type_Definition:
ESRI File Geodatabase FEATURE CLASS - describes areas specific to and contained within the encompassing assessed tract which are here identified as tract subunits. Subunit here indicates an area that is judged to be more prospective and has had some exploration activities. Subunits are represented spatially by an approximate extent and are not individually assessed.
Entity_Type_Definition_Source:
Syusyura, Boris, Box, S.E., and Wallis, J.C., 2010, Spatial databases of geological, geophysical, and mineral resource data relevant to sandstone-hosted copper deposits in central Kazakhstan: U.S. Geological Survey Open-File Report 2010-1124, 4 p. and databases, accessed January 7, 2011 at <http://pubs.usgs.gov/of/2010/1124/>.
Attribute:
Attribute_Label: TRACT_ID
Attribute_Definition: User-defined, unique identifier assigned to permissive tract
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: CODED_ID
Attribute_Definition: Coded, unique identifier assigned to permissive tract
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: TRACT_NAME
Attribute_Definition: Informal (author-defined) name of permissive tract
Attribute_Definition_Source: Box, 2012
Attribute:
Attribute_Label: AREA_KM2
Attribute_Definition: Area of permissive tract, in square kilometers
Attribute_Definition_Source: GMRAP
Attribute:
Attribute_Label: ASSESSMENT_SUBUNIT
Attribute_Definition: Alphanumeric identification of assessment subunit
Attribute_Definition_Source: Box, 2012
Distribution_Information:
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ZIP
Format_Information_Content: ZIP archive for SIR 2010-5090-E
Transfer_Size:
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <http://pubs.usgs.gov/sir/2010/5090/e/>
Fees: No fee for downloadable data and report.
Digital_Form:
Digital_Transfer_Information:
Format_Name: GDB
Format_Information_Content: ESRI geodatabase and contained feature classes
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <http://pubs.usgs.gov/sir/2010/5090/e/>
Distributor:
Contact_Information:
Contact_Voice_Telephone: (888) ASK-USGS
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey Information Services
Contact_Address:
Address_Type: mailing address
Address: P.O. Box 25286
City: Denver
State_or_Province: CO
Postal_Code: 80225
Country: USA
Address: Denver Federal Center
Contact_Voice_Telephone: (888) 275-8747
Contact_Electronic_Mail_Address: infoservices@usgs.gov
Resource_Description:
Downloadable data for USGS [Scientific Investigations Report, SIR] [2010-5090-E].
Distribution_Liability:
The U.S. Geological Survey (USGS) provides these geographic data "as is." The USGS makes no guarantee or warranty concerning the accuracy of information contained in the geographic data. The USGS further makes no warranties, either expressed or implied as to any other matter whatsoever, including, without limitation, the condition of the product, or its fitness for any particular purpose. The burden for determining fitness for use lies entirely with the user. Although these data have been processed successfully on computers of the USGS, no warranty, expressed or implied, is made by the USGS regarding the use of these data on any other system, nor does the fact of distribution constitute or imply such warranty. In no event shall the USGS have liability whatsoever for payment of any consequential, incidental, indirect, special, or tort damages of any kind, including, but not limited to, any loss of profits arising out of use of or reliance on the geographic data or arising out of the delivery, installation, operation, or support by the USGS. This spatial database is not meant to be used or displayed at any scale larger than 1:1,000,000 (for example, 1:250,000).
Technical_Prerequisites:
User must have geographic information system (GIS) software capable of reading ESRI ArcGIS file formats
Metadata_Reference_Information:
Metadata_Date: 20121003
Metadata_Access_Constraints: none
Metadata_Use_Constraints: none
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Pamela M. Cossette
Contact_Organization: U. S. Geological Survey
Contact_Address:
Address_Type: mailing and physical address
Address: 904 W. Riverside Ave.
City: Spokane
State_or_Province: WA
Postal_Code: 99201-1087
Country: USA
Contact_Voice_Telephone: 509-368-3121
Contact_Facsimile_Telephone: 509-368-3199
Contact_Electronic_Mail_Address: pcossette@usgs.gov
Contact_Position: Geologist
Generated by mp version 2.9.14 on Wed Oct 03 11:21:34 2012