Geology and Resource Assessment of the Venezuelan ... - USGS

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2°x3° quadrangle, Amazonas Federal Territory, Venezuela: U.S. Geological Survey Miscellaneous Field Studies Map MF-2245, scale 1:500,000. Wynn, J.C., Olmore, S.D., Mendoza, Vicente, Rincón, Haydée, García, Andrés, Rivero, Nelson, Rendón, Inés, Gray, Floyd, Marcano, Iris, Lugo, Elis, and Schruben, P.G., 1994, Geologic map of the Venezuela part of the Piedra de Cocuy 2°x3° quadrangle, Amazonas Federal Territiory, Venezuela: U.S. Geological Survey Miscellaneous Field Studies Map MF-2243, scale 1:500,000.
DIGITAL PRODUCTION TECHNIQUES The linework for all the quadrangles was originally digitized by Jeff Wynn with GSMAP (Selner and Taylor, 1987), a USGS-authored map editing and publishing program. Conversion from GSMAP to ARC/INFO was accomplished with GSMARC (Green and Selner, 1988). The three northern quadrangles were later re-scanned on an Tektronix 4991 autovectorizing drum scanner by Paul Schruben from the geologists' revised drawings. The arcs and polygons were tagged in ARC/INFO and the oriented point symbols such as bedding and joint symbols were created with Alacarte (Wentworth and Fitzgibbon, 1991). MAP PROJECTION The map projection is Equidistant Conic with the following parameters for all quadrangles: Sphere Clarke 1866 spheroid 1st standard parallel 9 0 0.000 2nd standard parallel 4 0 0.000 central meridian -66 0 0.000 latitude of projection's origin 0 0 0.000 false easting (meters) 0.00000 false northing (meters) 0.00000
Page 1 and 2: Study Area
Page 3 and 4: U.S. GEOLOGICAL SURVEY DIGITAL DATA
Page 5 and 6: DISCLAIMER This Compact Disc-Read O
Page 7 and 8: ADOBE ACROBAT READER REQUIREMENTS:
Page 9 and 10: IBM(R) RS/6000(TM) workstation - ac
Page 11 and 12: CONTACTS Questions about the digita
Page 13 and 14: ayscale 1:500,000 scale bar, title,
Page 15 and 16: pcout quadrangle outline and lat/lo
Page 17 and 18: vzge geology vzlab rock unit annota
Page 19 and 20: cama.e00 buried magnetic bodies cao
Page 21 and 22: pi.aml ARC/PLOT program for 44" Ver
Page 23 and 24: vzrd.e00 roads vzst.e0* single-line
Page 25 and 26: HISTORY OF THE MAPS The data in thi
Page 27 and 28: REFERENCES FOR THIS DISC Bellizzia-
Page 29: Stewart, J.H., 1994, Geologic map o
Page 33 and 34: ONLINE FILES Some of the files on t
Page 35 and 36: ARCVIEW AND ARC/INFO FILES These fi
Page 37 and 38: INSTALLING ARCVIEW 1 This section c
Page 39 and 40: USING ARCVIEW 1 The CD-ROM includes
Page 41 and 42: ARCVIEW 1 FILES The following table
Page 43 and 44: Ciudad Piar, scale bar piscale Ciud
Page 45 and 46: Puerto Ayacucho, quadrangle lat/lon
Page 47 and 48: Río Mavaca, map key polygons maleg
Page 49 and 50: GEOLOGY POLYGON ATTRIBUTES: COVERAG
Page 51 and 52: COLUMN ITEM NAME WIDTH OUTPUT TYPE
Page 53 and 54: 147 ORE.MAT 60 60 C - 207 DEP.TYPE
Page 55 and 56: 7 Item Name: fmatn Item Width: 6 It
Page 57 and 58: 3) Create a lookup table for the fa
Page 59 and 60: * join major1 which contains the co
Page 61 and 62: Xf2 - Felsic metatuff and flows (Ea
Page 63 and 64: granites of Guaniamito, San Pedro,
Page 65 and 66: ROCKS OF THE IMATACA PROVINCE XAi -

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