National Geographic : 1894 May 23
126 Hayes and Campbell-AppalachianGeomorphology. greatly strengthened. On the Atlantic slope the data are not so complete. Almost all of the sediments were derived directly from the granitic rocks of the piedmont plain, and hence show less differentiation in character than the rocks of the Gulf coast. So far as known there is nothing in the character of the Atlantic coastal plain sediments which will conflict with the conclusions given above, but exact correlations cannot at present be made. Thus the same history of the province which was read in the forms of the land surface and in the location of the streams is also found recorded in the sediments derived from its erosion. The three lines of investigation outlined at the beginning of this paper are found to lead to harmonious results and each to sup plement the others. While many details remain to be worked out, the main features of post-Paleozoic history of the southern Appalachians as given above seem fairly well determined. UNITED STATES GEOLOGICAL SURVEY, Washington, D. C.
1894 Jun 22
1894 Apr 25