LODEDEP: mineral deposit symbols (points) Lode mineral deposits are defined as points. The following items are attached to each point: Database fields for LODEDEP points Field Description SYMBOL symbol number DEPOSIT_NA deposit name LATDD latitude (in decimal degrees) LONGDD longitude (in decimal degrees) MAP_ROW quadrant row number of deposit MAP_COL_ quadrant column number of deposit NO_IN_SECT deposit number DEPOSIT_TY deposit type COMMODITIE deposit commodity BELT_METAL name of metallogenic belt in which deposit is located METALLOGEN class of metallogenic belt in which deposit is located ABBREVNAME metallogenic belt code BELT_NAME1 full name of metallogenic belt in which deposit is located BELT_NAME2 rest of full name of metallogenic belt in which deposit is located QUADNUMBER unique deposit identifier made up of combined values of MAP_ROW, MAP_COL_, and NO_IN_SECT DXF-LAYER description code (see table below) Original Circumpolar Map projection parameters Parameter Value Type Lambert Azimuthal Equal-Area projection Units metres Spheroid Clarke, 1866 Projection origin 175 00 00 W (central meridian) 70 00 00 N False origin (easting, northing)=(0, 0) Radius 6370997 m Open File release: Title Mineral deposit and metallogenic belt maps of the Russian Far East, Alaska, and the Canadian Cordillera USGS: Open File Report 97-161 GCS: Open File 3446 The preparation of the digital data and the maps was accomplished under the auspices of the Cartography Section of the Geoscience Information Division (GID), Natural Resources Canada. Recommended citation Recommended citation Nokleberg, W.J., West, T.D., Dawson, K.M., Shpikerman, V.I., Bundtzen, T.K., Parfenov, L.M., Monger, J.W.H., Ratkin, V.V., Baranov, B.V., Byalobzhesky, S.G., Diggles, M.F., Eremin, R.A., Fujita, Kazuya, Gordey, S.P., Gorodinskiy, M.E., Goryachev, N.A., Feeney, T.D., Frolov, Y.F., Grantz, Arthur, Khanchuck, A.I., Koch, R.D., Natalin, B.A., Natapov, L.M., Norton, I.O., Patton, W.W., Jr., , Plafker, George, Pozdeev, A.I., Rozenblum, I.S., Scholl, D.W., Sokolov, S.D., Sosunov, G.M., Stone, D.B., Tabor, R.W., Tsukanov, N.V., and Vallier T.L. 1998: Summary terrane, mineral deposit, and metallogenic belt maps of the Russian Far East, Alaska, and the Canadian Cordillera (CD-ROM): U.S. Geological Survey Open-File Report 98-136 (CD-ROM). Assistance Questions, suggestions, and comments regarding this CD-ROM should be addressed to: Warren Nokleberg U.S. Geological Survey Telephone 650-329-5732 FAX 650-329-5490 e-mail wnokleberg@isdmnl.wr.usgs.gov