%0 Journal Article
%T Edwin James' and John Hinton's revisions of Maclure's geologic map of the United States
%A K. R. Aalto
%J History of Geo- and Space Sciences (HGSS)
%D 2012
%I Copernicus Publications
%R 10.5194/hgss-3-75-2012
%X William Maclure's pioneering geologic map of the eastern United States, published first in 1809 with Observations on the Geology of the United States, provided a foundation for many later maps ¨C a template from which geologists could extend their mapping westward from the Appalachians. Edwin James, botanist, geologist and surgeon for the 1819/1820 United States Army western exploring expedition under Major Stephen H. Long, published a full account of this expedition with map and geologic sections in 1822¨C1823. In this he extended Maclure's geology across the Mississippi Valley to the Colorado Rockies. John Howard Hinton (1791¨C1873) published his widely read text: The History and Topography of the United States in 1832, which included a compilations of Maclure's and James' work in a colored geologic map and vertical sections. All three men were to some degree confounded in their attempts to employ Wernerian rock classification in their mapping and interpretations of geologic history, a common problem in the early 19th Century prior to the demise of Neptunist theory and advent of biostratigraphic techniques of correlation. However, they provided a foundation for the later, more refined mapping and geologic interpretation of the eastern United States.
%U http://www.hist-geo-space-sci.net/3/75/2012/hgss-3-75-2012.html