FGDC Geologic Map Symbol Standard -- PDF format - USGS
2020年12月3日 — organized the symbols thematically, here. [includes general information on how to use standard, information on Scientific Confidence and Locational Accuracy of Geologic Map Features, and three Tables.]
[Lithologic patterns are usually reserved for use on stratigraphic columns, sections, or charts] *For more information, see general guidelines on pages A-i to A-v. 601
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Pattern Chart - USGS
Abbreviations: K, black; C, cyan; M, magenta; DO, dropout; R, red; B, brown. Generic lookup-table number shown in upper left-hand corner of box. Number can be used to access a particular pattern from a custom-designed patternset. For more specific information on these patterns, see discussion on p.
Stratigraphic column - Wikipedia
A stratigraphic column is a representation used in geology and its subfield of stratigraphy to describe the vertical location of rock units in a particular area. A typical stratigraphic column shows a sequence of sedimentary rocks, with the oldest …
classified for mapping purposes by a complex scheme of named material and temporal or geologic time terms. Most of the time terms (for example, Cretaceous) were defined and first used by European geologists and have since been accepted …
FGDC Digital Cartographic Standard for Geologic Map …
2008年5月16日 — To find the location of a particular symbol in the various sections, please consult the detailed index of symbols. Questions, comments, suggestions? Please contact Dave Soller and Taryn Lindquist .
What are Stratigraphic Columns? - Idaho State University
Stratigraphic columns are the traditional means of presenting measured geologic sequences as a figure. Information should be arranged with the youngest rock unit at the top and the oldest rock unit at the bottom.
Stratigraphic sections, Geology 103A, Sedimentology and Stratigraphy …
Examples of stratigraphic sections: A stratigraphic section (also called a stratigraphic column) is a visual representation of a field outcrop. It often starts with field measurements of bed and unit thicknesses. It may be a composite section that was produced by visiting several exposures.
stratigraphic hiatus tectonic overprints: subduction zone or accretionary complex penetratively deformed or regionally metamorphosed tectonic melange olistostromal deposits blueschist facies metamorphism contacts and faults: isotopic symbols: potassium-argon argon-argon rubidium-strontium uranium-lead neodymium-samarium marine megafossil marine ...
FGDC Geologic Patterns for the Web - Daven Quinn
2017年7月15日 — This repository contains the FGDC library of 480 map and lithologic patterns extracted to SVG and PNG, for use on the modern web. This can be paired with other collections of linework and geologic symbols for the construction of slick geologic maps and stratigraphic columns. Credits and change history. Created by Daven Quinn on July 15, 2017