| description:
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Feature class and cartographic representations for dikes, lineaments, joints and folds, corresponding to <a href="http://ngmdb.usgs.gov/fgdc_gds/geolsymstd/fgdc-geolsym-sec01.pdf#page=5">Section 1 </a>, <a href="http://ngmdb.usgs.gov/fgdc_gds/geolsymstd/fgdc-geolsym-sec04.pdf">Section 4 </a>, and <a href="http://ngmdb.usgs.gov/fgdc_gds/geolsymstd/fgdc-geolsym-sec05.pdf">Section 5 </a>of the <a href="http://ngmdb.usgs.gov/fgdc_gds/">FGDC Digital Cartographic Standard for Geologic Map Symbolization</a>. |