And here is the FGDC standard.
FGDC Digital Cartographic Standard for Geologic Map Symbolization
rmfr
For those who wish to try and make such a map, here is an excellent (postscript) page with documents explaining and showing geological mapping symbols at the USGS site.
Digital Cartographic Standard for Geologic Map Symbolization
rmfr
Perhaps imagination is only intelligence having fun. - Albert Einstein
A good friend will come down and bail you out of jail. A best friend will be in jail with you and say, "Dude, we screwed up."
And here is the FGDC standard.
FGDC Digital Cartographic Standard for Geologic Map Symbolization
rmfr
Perhaps imagination is only intelligence having fun. - Albert Einstein
A good friend will come down and bail you out of jail. A best friend will be in jail with you and say, "Dude, we screwed up."