I have over 700 symbols created and tested for use on geological maps, using the USGS symbol documents as a source (https://ngmdb.usgs.gov/fgdc_gds/), converting the original PDF using Inkscape.

I am using only a few of these on my own geological maps, so wondered if they would be of more general interest or use in the QGIS community. They are at http://members.iinet.net.au/~richard.langford/USGS.zip, and if they are fit for purpose I would like to know.

Has anyone already done this for USGS symbols as SVGs, or is this new?

  • see QGIS Geology Symbology FGDC Compliant Geology Symbology for QGIS : "An implementation of many of the USGS FGDC Geological Map Symbolization for use by QGIS. Also included is a set of QGIS .qml files representing the geochronostratigraphic colour scheme proposed by the Commission for the Geological Map of the World' – gene Dec 22 '17 at 9:21
  • Hi Stefan. Thanks for the heads up. I am sorry that I missed your post, so thanks for letting me know. I, foolishly, chose to do all 700+ symbols...everything from fossils to volcanoes. If you would like to add them to your project, please go ahead. Rich – Dr Richard Langford Jan 30 '18 at 0:04
  • I have searched using usgs, fgdc and "geology symbology", and your work does not appear. Why am I missing it? – Dr Richard Langford Jan 30 '18 at 0:22

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