Color palette for Geologic maps
August 15 2007 |
10 comments
Categories:
Symbology
I spend lots of time creating Geologic Maps for various oil and gas prospects. I was wondering
if there is a color palette that I could download that is compliant with Geologic Mapping standards, or will I have to build my own?
Mapping Center Answer:
There is already a “Geology 24K.style” which contains both a color palette and color ramps designed for USGS surface geology maps (based on the 95-525 standard).
From the tools menu, choose Styles (next to last) and then Style Manager. Then click on the Styles button (upper left) and choose Geology 24K.style.
The color ramps were intended to expedite the assignment of age-appropriate colors to surface geology units. The way to do that is use unique values symbology, and then create headings that you’ll use to assign the color ramps. The headings will be age the classifications that are the same as the color ramp names in the geology 24K.style.
[The procedure that followed was cleaned up and became a blog entry on the Mapping Center Blog called Organizing layers with too many unique values.]
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http://www.fgdc.gov/standards/projects/FGDC-standards-projects/geo-symbol/
Please list where we can obtain updated style files and cartographic representations that reflect the new standards. Thanks!