U.S. Geological Survey (USGS) color and pattern standards and conventions for
geologic maps have evolved since the USGS published its first set of
standards in 1881. Since that time, USGS personnel have continuously
updated and revised the standards in response to the need to show increasingly
complex geologic map data and in response to changing technology. The
color and pattern standards and conventions contained in this book enable
geologists, cartographers, and editors to produce geologic maps that
have consistent geologic-age color schemes and patterns. Such consistency
enables geologists and other users of geologic maps to obtain a wealth
of geologic information at a glance and to produce maps that can easily
be used and compared to other published maps that follow the color and
pattern standards and conventions.
Version 1.0
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| Posted June 2005 |
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