This is yet another(12345) FGDC fill geology symbols library for QGIS 3.x. All symbols tile seamlessly and most are standardised in a 50x50 pixels area. The colour of all symbols can be changed in QGIS as is the stroke width of many symbols.
The original symbols were taken from the FGDC Geologic Patterns for the Web(2) and converted to QGIS parametrised svg(6) in order to allow for colour changes.
Install
The library is presented as a FGDC folder that should be placed into a SVG path in QGIS and a bunch of xml files that can be imported into QGIS Symbology.
Unzip the downloaded file into a convenient location on your computer.
Copy the FGDC folder into a location accessible from QGIS SVG paths as shown in: Settings -> Options -> System -> SVG paths
Open QGIS Style manager and import symbols from each xml file: Settings -> Style Manager... -> Import/Export -> Import Item(s)...
If you do not change QGIS defaults, you will end up with 7 new "Tags": 100-Suficial, 200-Sedimentary, 300-Igneous, 400-Misc-Metamorphic, 500-Glacial-Periglacial, 600-LithoSed and 700-LithoMetaIgneousVein.
Each tag will have the following number of symbols in it:
Symbol tab
Nb. symbols
100-Suficial
21
200-Sedimentary
18
300-Igneous
14
400-Misc-Metamorphic
26
500-Glacial-Periglacial
9
600-LithoSed
84
700-LithoMetaIgneousVein
32
Symbol sets 100, 200, 300, 400 and 500 are for maps compositions;
while sets 600 and 700 are for sections and logs compositions.
Comments
Colour of all symbols can be changed through the "Stroke colour" in QGIS Symbology pane.
Symbol size can be adjusted using "Texture width" and/or "Rotation" in the QGIS symbology pane and will appear as a different symbol.
e.g.: and
T:130 R:0° - T:190 R:60°
The two colours of symbol 426 can be changed with "Stroke colour" and "Fill colour" in QGIS Symbology pane.
Symbol 733 can be further customised with "Fill colour" as demonstrated below: Stroke colour: #000; (black)
Fill colour: #FFF; (red)
Stroke width of the following symbols can also be adjusted in QGIS Symbology pane:
101, 102, 103, 123, 201, 202, 204, 214, 215, 216, 217, 218,219, 226, 228, 229, 230, 231, 232, all 300's, 401, 405, 406, 411, 416, 417, 418, 420, 423, 424, 430, 431, 432, 594, 601-624, 626-657, 659-680, 682-686, 701, 704-716, 719-733.
Most symbols are standardised on a 50x50 pixels area,
Exceptions are all 600's symbols and symbols: 304, 411, 427, 428, 434, 435, 436, 592 and 593.
The library does not include some of the original FGDC symbols because they can be replicated with others using QGIS options (i.e. "Texture width" and "Stroke width").
Individual symbols can be found below (click on a tab):
×
Click the symbol to go to GitHub. There it will probably say that the symbol is invalid. This is because of the QGIS specific attributes. Instead click the "raw" button and save the page to your computer (this is the actual svg). You can then use it is QGIS. Note that most of the symbols do not diaplay well in Inkscape! DO NOT right-click and Save As..., this will only save garbage... You are warned!
101
102
103
104
105
106
114
116
117
118
119
120
121
122
123
124
132
134
135
136
137
×
Click the symbol to go to GitHub. There it will probably say that the symbol is invalid. This is because of the QGIS specific attributes. Instead click the "raw" button and save the page to your computer (this is the actual svg). You can then use it is QGIS. Note that most of the symbols do not diaplay well in Inkscape! DO NOT right-click and Save As..., this will only save garbage... You are warned!
201
202
204
206
207
214
215
216
217
218
219
226
228
229
230
231
232
233
×
Click the symbol to go to GitHub. There it will probably say that the symbol is invalid. This is because of the QGIS specific attributes. Instead click the "raw" button and save the page to your computer (this is the actual svg). You can then use it is QGIS. Note that most of the symbols do not diaplay well in Inkscape! DO NOT right-click and Save As..., this will only save garbage... You are warned!
301
302
303
304
305
313
314
315
316
317
319
327
330
331
×
Click the symbol to go to GitHub. There it will probably say that the symbol is invalid. This is because of the QGIS specific attributes. Instead click the "raw" button and save the page to your computer (this is the actual svg). You can then use it is QGIS. Note that most of the symbols do not diaplay well in Inkscape! DO NOT right-click and Save As..., this will only save garbage... You are warned!
401
402
403
405
406
411
416
417
418
419
420
423
424
426
427
428
429
430
431
432
433
434
435
436
×
Click the symbol to go to GitHub. There it will probably say that the symbol is invalid. This is because of the QGIS specific attributes. Instead click the "raw" button and save the page to your computer (this is the actual svg). You can then use it is QGIS. Note that most of the symbols do not diaplay well in Inkscape! DO NOT right-click and Save As..., this will only save garbage... You are warned!
521
522
523
524
591
592
593
594
595
×
Click the symbol to go to GitHub. There it will probably say that the symbol is invalid. This is because of the QGIS specific attributes. Instead click the "raw" button and save the page to your computer (this is the actual svg). You can then use it is QGIS. Note that most of the symbols do not diaplay well in Inkscape! DO NOT right-click and Save As..., this will only save garbage... You are warned!
634 Cherty and Sandy Crossbedded Clastic Limestone
635 Oolitic Limestone
636 Sandy Limestone
637 Silty Limestone
638 Argillaceous or Shaly Limestone
639 Cherty Limestone 1st Option
640 Cherty Limestone 2nd Option
641 Dolomitic Limestone, Limy Dolostone or Limy Dolomite
642 Dolostone or Dolomite
643 Crossbedded Dolostone or Dolomite
644 Oolitic Dolostone or Dolomite
645 Sandy Dolostone or Dolomite
646 Silty Dolostone or Dolomite
647 Argillaceous or Shaly Dolostone or Dolomite
648 Cherty Dolostone or Dolomite
649 Bedded Chert 1st Option
650 Bedded Chert 2nd Option
651 Fossiliferous Bedded Chert
652 Fossiliferous Rock
653 Diatomaceous Rock
654 Subgraywacke
655 Crossbedded Subgraywacke
656 Ripple-Bedded Subgraywacke
657 Peat
658 Coal
659 Bony Coal or ImpureCoal
660 Underclay
661 Flint Clay
662 Bentonite
663 Glauconite
664 Limonite
665 Siderite
666 Phosphatic-Nodular Rock
667 Gypsum
668 Salt
669 Interbedded Sandstone and Siltstone
670 Interbedded Sandstone and Shale
671 Interbedded Ripple-bedded Sandstone and Shale
672 Interbedded Shale and Silty Limestone Shale Dominant
673 Interbedded Shale and Limestone, Shale Dominant 1st Option
674 Interbedded Shale and Limestone, Shale Dominant 2nd Option
675 Interbedded Calcareous Shale and Limestone, Shale Dominant
676 Interbedded SiltyLimestone and Shale
677 Interbedded Limestone and Shale 1st Option
678 Interbedded Limestone and Shale 2nd Option
679 Interbedded Limestone and Shale, Limestone Dominant
680 Interbedded Limestone and Calcareous Shale
681 Till or Diamicton 1st Option
682 Till or Diamicton 2nd Option
683 Till or Diamicton 3rd Option
684 Loess 1st Option
685 Loess 2nd Option
686 Loess 3rd Option
×
Click the symbol to go to GitHub. There it will probably say that the symbol is invalid. This is because of the QGIS specific attributes. Instead click the "raw" button and save the page to your computer (this is the actual svg). You can then use it is QGIS. Note that most of the symbols do not diaplay well in Inkscape! DO NOT right-click and Save As..., this will only save garbage... You are warned!
701 Metamorphism
702 Quartzite
703 Slate
704 Schistose or Gneissoid Granite
705 Schist
706 Contorted Schist
707 Schist and Gneiss
708 Gneiss
709 Contorted Gneiss
710 Soapstone, Talc or Serpentinite
711 Tuffaceous Rock
712 Crystal Tuff
713 Devitrified Tuff
714 Volcanic Breccia and Tuff
715 Volcanic Breccia or Agglomerate
716 Zeolitic Rock
717 Basaltic Flows
719 Granite 2nd Option
720 Banded Igneous Rock
721 Igneous Rock 1st Option
722 Igneous Rock 2nd Option
723 Igneous Rock 3rd Option
724 Igneous Rock 4th Option
725 Igneous Rock 5th Option
726 Igneous Rock 6th Option
727 Igneous Rock 7th Option
728 Igneous Rock 8th Option
729 Porphyritic Rock 1st Option
730 Porphyritic Rock 2nd Option
731 Vitrophyre
732 Quartz
733 Ore
Licence
All the symbols in this library are distributed under [CC0](http://creativecommons.org/publicdomain/zero/1.0/).
To the extent possible under law, GeoProc.com has waived all copyright and related or neighboring rights to this work.
References
U.S. Geological Survey, 2006, FGDC Digital Cartographic Standard for Geologic Map Symbolization (PostScript Implementation): U.S. Geological Survey Techniques and Methods 11-A2 (online).
Daven Quinn, 2017, FGDC Geologic Patterns for the Web (online).
Stefan Revets, 2016, QGIS Geology Symbology (online).
Andrea Nass, Alessandro Frigeri, 2016, Geologic Symbols for digital maps and GIS (online).
and 
