HEADWATERS ECONOMICS GEOGRAPHIC DATA LIBRARY DOCUMENTATION TITLE: Geodataset Name: BC_diamonds Geodataset Type: SHAPE Geodataset Feature: POINT GENERAL DESCRIPTION: This data layer shows locations of potential diamond occurrences in British Columbia. DATA SOURCE(S): B.C. Ministry of Energy, Mines and Petroleum Resources BC Scale of Original Source Maps: 1:50,000 BC Date of Original Source Maps: 2006 GEODATASET EXTENT: British Columbia, Canada FEATURE ATTRIBUTE TABLES CODES AND VALUES: STATUS_D The production status of the mineral. Showing Prospect COMMOD_D1 Type of mineral. Diamond DEPTYP_D1 Type of geologic formation deposit located in. Kimberlite-hosted diamonds Lamproite-hosted diamonds DEPCLA_D1 Diatreme Magmatic PRODUCTN Whether or not deposit is being mined. N DATA LINEAGE SUMMARY: The data is from the MINFILE which contains geological, location and economic information on over metallic, industrial mineral mines, deposits and occurrences. The BC data set was downloaded from http://www.em.gov.bc.ca/Mining/Geolsurv/MapPlace/geoData.htm and the item COMMOD_D1 = Diamonds was selected. MAP PROJECTION PARAMETERS PROJECTION ALBERS CONICAL EQUAL AREA DATUM NAD83 UNITS METERS SPHEROID GRS1980 PARAMETERS 1st standard parallel 29 30 0.000 2nd standard parallel 45 30 0.000 central meridian -96 00 0.000 latitude of projection's origin 37 30 0.000 false easting (meters) 0.00000 false northing (meters) 0.00000 DATA SOURCES CONTACT(S): Name: BC Geological Survey, Mining and Minerals Division Address: 5th Floor, 1810 Blanshard St. Victoria, BC V8W 9N3 Web site: http://www.em.gov.bc.ca/Mining/Geolsurv/Minfile/default.htm Contact Person: Larry Jones Phone: (250) 952-0386 Fax: (250) 952-0381 Email: Larry.Jones@gov.bc.ca HEADWATERS ECONOMICS CONTACT: Name: Headwaters Economics Geographic Data Library Abbr. Name: HEGDL Address: Headwaters Economics 566 Highland St. Helena, Montana 59601 Web site: http://www.headwaterseconomics.org Contact Person: Patty Gude Phone: (406)599-7425 Email: patty@headwaterseconomics.org