Regional Geochemical Survey Areas

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Published by the Ministry of Energy, Mines and Petroleum Resources - BC Geological Survey
Licensed under Access Only

The joint federal-provincial Regional Geochemical Surveys (RGS) have been carried out in British Columbia since 1976 as part of the National Geochemical Reconnaissance (NGR) program to aid exploration and development of mineral resources. The British Columbia Geological Survey maintains provincial geochemical databases capturing information from multi-media surveys. This 2017 release is the most current index of 73 regional geochemical survey areas, represented by 112 publications, covering about 80 percent of the province. Results of the surveys are presented in the 2017 RGS Database, with 64,828 samples and about 5 million determinations analyzed using 18 methods in 18 laboratories. This database is published as BCGS GeoFile 2017-11.

Data and Resources

Dataset Extent

Latitude: 48.0° to 60.0°
Longitude: -139.0° to -114.0°

Additional Information

Purpose

RGS data identifies areas with elevated and/or depleted concentrations of metals and is used by the mining industry to pinpoint exploration opportunities. The database is used to outline regional geochemical trends and assist regional metallogenic studies and geological interpretations, assist in the evaluation of mineral potential and aid resource management and land-use planning initiatives, and provide background geochemical data useful for environment assessments.

Data Quality

The RGS currently covers approximately 80 percent of the province, with an average density of about 1 sample site per 7–13 km2.

Lineage Statement

The RGS_survey_areas table is from British Columbia Geological Survey GeoFile 2017-11 http://www.empr.gov.bc.ca/Mining/Geoscience/PublicationsCatalogue/GeoFiles/Pages/GF2017-11.aspx.

More Information

Contact Information

NameAlexei Rukhlov (businessExpert)
EmailAlexei.Rukhlov@gov.bc.ca
OrganizationMinistry of Energy, Mines and Petroleum Resources
Sub-OrganizationBC Geological Survey
NameLarry Jones (pointOfContact)
EmailLarry.Jones@gov.bc.ca
OrganizationMinistry of Energy, Mines and Petroleum Resources
Sub-OrganizationBC Geological Survey

Access & Security

Who can view this dataset? Public
Who can download this dataset?Public

Metadata Information

Record Published 2011-03-09
Record Last Modified 2019-02-11
Resource Status onGoing

Object Description

Object Name: WHSE_MINERAL_TENURE.GEOL_REG_GEOCHMCL_SURV_AREA_SP

Short Name: RGS_S_AREA
Comments: British Columbia regional geochemical survey areas for collecting stream sediment and water geochemical data. The survey areas are the individual blocks within a 1:250,000 grid covering the province of BC. Survey areas are also known commonly as indexes and represented as index maps.

Column Name Short Name Data Type Data Precision Comments
REG_GEOCHMCL_SURV_AREA_SP_ID RGS_AREAID NUMBER 8 Unique identifier of survey used to create shape file
WHEN_CREATED WHEN_CREAT DATE 7 Identifies the date and time the record was created.
WHO_CREATED WHO_CREATE VARCHAR2 30 Identifies the ID of the person who created the record.
WHEN_UPDATED WHEN_UPDAT DATE 7 Identifies the date and time the last update was made to the record.
WHO_UPDATED WHO_UPDATE VARCHAR2 30 Identifies the ID of the person who last updated the record.
CITATION_DESCRIPTION CITN_DESCN VARCHAR2 254 Alternative Publications
DOWN_LOAD_FILE_NAME DL_FIL_NAM VARCHAR2 20 Downloadable region-specific zip file
EAST_COORDINATE EAST_COORD NUMBER 4 East coordinate of study area
ELEMENT_ANALYSIS ELEM_ANALY VARCHAR2 50 Analysis for presence of various metals (sediments)
FILE_TYPE FILE_TYPE VARCHAR2 50 File type of downloadable publication
HTML_PAGE HTML_PAGE VARCHAR2 10 Address of webpage
HTML_TITLE HTML_TITLE VARCHAR2 80 Title of webpage
LATEST_PUBLICATION_YEAR LATEST_PUB NUMBER 4 Year of publication of most recent survey
LINK LINK VARCHAR2 254 Webpage of geochemical survey
LINK_1 LINK_1 VARCHAR2 254 Webpage of geochemical survey
LINK_2 LINK_2 VARCHAR2 254 Alternative webpage of geochemical survey 2
LINK_3 LINK_3 VARCHAR2 254 Alternative webpage of geochemical survey 3
MAINTENANCE_FREQUENCY MAINT_FREQ VARCHAR2 254 Maintenance and Update Frequency
MAP_SHEET_ID MAP_SHT_ID VARCHAR2 20 Unique identifier of NTS mapsheet
MAPSEET_SURVEYED MS_SURVEYD NUMBER 18 Key to whether mapsheet has been surveyed
NORTH_COORDINATE NORTH_COOR NUMBER 4 North coordinate of study area
NTS_SURVEY_MAPSHEETS NTS_MAP_ST VARCHAR2 20 NTS mapsheets where survey took place, not necessarily unique
OPEN_FILE_NUMBER OPN_FIL_NO VARCHAR2 50 Unique identifier of BCGS or Geoscience publication
ORIGINAL_RELEASE_YEAR ORIG_RELYR NUMBER 4 Original Release Date
ORIGINATOR ORIGINATOR VARCHAR2 254 Authors responsible for coordinating and publishing survey
OTHER_PUBLICATIONS OTHER_PUBS VARCHAR2 40 Other Publications
PLACE_KEY_WORD_1 PL_KEY_WD1 VARCHAR2 50 Place keyword
PLACE_KEY_WORD_2 PL_KEY_WD2 VARCHAR2 50 Alternative place keyword 2
PLACE_KEY_WORD_3 PL_KEY_WD3 VARCHAR2 50 Alternative place keyword 3
PLACE_KEY_WORD_4 PL_KEY_WD4 VARCHAR2 50 Alternative place keyword 4
PLACE_KEY_WORD_5 PL_KEY_WD5 VARCHAR2 50 Alternative place keyword 5
PUBLICATION_BEGIN_YEAR PUB_BEG_YR NUMBER 4 The first year of publication of survey results
PUBLICATION_END_YEAR PUB_END_YR NUMBER 4 The last year of publication of survey results
PUBLICATION_PLACE PUBLCTN_PL VARCHAR2 50 Place of Publication
PUBLICATION_YEAR PUBLCTN_YR NUMBER 4 Year of publication of the survey
PUBLISHER_NAME PUBLSR_NAM VARCHAR2 50 The name of the individual or organization that published the data set.
SAMPLE_MEDIA SAMP_MEDIA VARCHAR2 20 Nature of Media Sampled
SAMPLE_SITES SAMP_SITES NUMBER 9 Number of sample sites for each survey
SERIES_NAME SERIES_NAM VARCHAR2 254 Series name of Open File Number
SOUTH_COORDINATE SOUTH_COOR NUMBER 4 South coordinate of study area
SUPPLEMENT SUPPLEMENT VARCHAR2 254 Supplemental Information
SURVEY_TITLE SURV_TITLE VARCHAR2 254 Title of Regional Geochemical Survey
THEME_KEY_WORD TH_KEY_WD NUMBER 18 Theme keyword
THEME_KEY_WORD_1 TH_KEY_WD1 VARCHAR2 50 Alternative keyword 1
THEME_KEY_WORD_2 TH_KEY_WD2 VARCHAR2 50 Alternative keyword 2
THEME_KEY_WORD_3 TH_KEY_WD3 VARCHAR2 50 Alternative keyword 3
THEME_KEY_WORD_4 TH_KEY_WD4 VARCHAR2 50 Alternative keyword 4
THEME_KEY_WORD_5 TH_KEY_WD5 VARCHAR2 50 Alternative keyword 5
UPDATE_RELEASE_YEAR UPD_REL_YR NUMBER 4 Update Release Date
WATER_ANALYSIS WATR_ANALY VARCHAR2 20 Type of water analysis performed involving a measurement of pH or the amount of Sulphate, Fluoride, or Uranium in waters
WEST_COORDINATE WEST_COORD NUMBER 4 West coordinate of study area
FEATURE_CODE FEAT_CODE VARCHAR2 10 A feature code is most importantly a means of linking a feature to its name and definition. For example, the code GB15300120 on a digital geographic feature links it to the name "Lake - Dry" with the definition "A lake bed from which all water has drained or evaporated."
GEOMETRY GEOMETRY SDO_GEOMETRY 1 GEOMETRY is the column used to reference the spatial coordinates defining the feature.
OBJECTID OBJECTID NUMBER 38 OBJECTID is a required attribute of feature classes and object classes in a geodatabase.
SE_ANNO_CAD_DATA BLOB 4000 SE_ANNO_CAD_DATA is a binary column used by spatial tools to store annotation, curve features and CAD data when using the SDO_GEOMETRY storage data type.
FEATURE_AREA_SQM NUMBER 19 FEATURE_AREA_SQM is the system calculated area of a two-dimensional polygon in square meters
FEATURE_LENGTH_M NUMBER 19 FEATURE_LENGTH_M is the system calculated length or perimeter of a geometry in meters

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