Geologic mapping of Georgia (U.S. state)

Rock units or geologic strata are shown by colors or symbols to indicate where they are exposed at the surface.

[7] In 1895 R. T. Nesbitt produced a small-scale geological map of Georgia that was included in a statistical review of the state.

[8] The review was described as a Chamber of commerce styled work, that presented the economic mineral resources and geology of the state in a promotional and exaggerated manner.

From the beginning of the United States, Georgia geology has been included in maps produced for the entire country.

[11][12] In 1807, Maclure undertook the self-imposed task of making a geological survey of the United States.

During the rigorous two-year period of his survey, he crossed and recrossed the Allegheny Mountains some 50 times.

[20] In 1856, Henry Darwin Rogers created a similar map of the geology of the U.S. and British North America.

[25] Gray's geological map of the U.S. was published in the National Atlas special edition at a scale of about 1 inch to 300 miles in 1876 and reprinted in 1886 by the American Institute of Mining Engineers.

[26] A geological map of the U.S. east of the Rocky Mountains was produced at the scale of 1 inch to 105.5 miles by Frank H.

It was put together mainly in two parts from two teams representing the northern and southern portion of the state.

For some areas, previous authors provided more detailed work than the reconnaissance conducted by the geological survey staff.

[39] This federal act was for the purpose of producing geologic maps that for 2 decades had been drastically curtailed.

It was recognized that "geologic maps are the primary data base for virtually all applied and basic earth-science applications".

The geology of Georgia consists of five distinct geologic regions, beginning in the northwest corner of the state and moving through the state to the southeast: the Ridge and Valley region also known as the Appalachian Plateau, the Blue Ridge, the Piedmont, the Fall Line and the Coastal Plain.