![]() All map symbology was created to be used at a scale of 1:5,000,000. Users who wish to display the geologic map symbolization and color palettes similar to those used in the printed version of the GMNA are encouraged to open the map document (GMNA.mxd) in ArcMap. Supplemental_Information: The comprehensive list of contributors to the Geologic Map of North America (Reed and others, 2005) is available on request from Documents Secretary, Geological Society of America, P.O. It is hoped that use of this data, either by itself or in relation to other data sets, may lead to new interpretations of the geology of North America. Purpose: The release of this database will allow the general public, academia, and earth science professionals to view, evaluate and manipulate geologic data on a continental scale. Digital data were compiled from source data at a scale of 1:5,000,000 and are not intended to be used at a larger (greater detail) scale. ![]() Geological Survey Online_Linkage: Description: Abstract: This map layer contains geologic unit boundaries for the area depicted in the Geologic Map of North America, published by the Geological Society of America in 2005 (Reed et. and others (2005) Edition: 1.0 Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: Data Series Issue_Identification: 424 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Publication_Date: 2009 Publication_Time: Unknown Title: Database of the Geologic Map of North America- Adapted from the Map by J.C. Identification_Information: Citation: Citation_Information: Originator: Garrity, C.P. and others (2005) Database of the Geologic Map of North America- Adapted from the Map by J.C. ![]() Database of the Geologic Map of North America- Adapted from the Map by J.C.
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