GIS Geologic Map Finalization: “overview of layers that should be getting close to final”
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GIS Geologic Map Finalization:
“overview of layers that should be getting close to final”
June 2012, Planetary Mappers Meeting
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Original ArcMap Geologic GIS Project -generated by USGS for mapper
GeoDatabase – older projects may have a different extension
Example used: Tooting Crater, Mars, 1:200k, Peter J. Mouginis-Mark, University of HawaiiSubmitted for publication
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Layers you should haveGIS Raster Data• Includes the USGS-created (or other) base map• Include the MOLA DEM and shaded relief• All high-resolution datasets used while mapping should be excluded,down sampled, or included asfigures, footprint files, or supplemental data
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Layers you should haveGIS vector features (near final)• Contacts/Linear Features (lines)• Contacts should be snapped to other contacts• Attributes defined in the table and displayed with unique symbology• Symbology closely follow the FGDC Cartographic Standards
• Structural Layers (lines)• Channels, crest of crater rim• Symbology also follows FGDC
• Location or Point Features• Uniquely attributed and symbolized• Labeled if necessary• Sized so they can be seen at the printable map scale
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Layers you should haveGIS vector features (near final)•Geologic Units
building polygons is an iterative process. As your map progresses, it is a good idea to have been testing unit (polygon) creation several times.
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Layers you should have• Contacts/Linear Features (lines)
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Layers you should have• Structural Layers (lines)
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Layers you should have• Location or Point Features, e.g. secondary craters
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Layers you should have•Overlay polygons, e.g. crater clusters
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Layers you should have•Overlay polygons, e.g. ejecta facies
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Layers you should have•Overlay polygons, e.g. NoData coverage
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Goal: layers to build•Geologic Units