Geology topics

Research about Alabama;Georgia;North Carolina;South Carolina

Source-linked reports with geographic coverage including Alabama;Georgia;North Carolina;South Carolina.

2 recordsLinked to original sources

USGS1948

Gold deposits of the southern Piedmont

This report deals chiefly with the gold mines in the Southern Appalachian gold belt whose workings were accessible at the time of examination, but it also · summarizes available information concerning many mines that were not accessible. Most of the mines lie within a belt, 10 to 100 miles wide, that extends along the southeast front of the .:Appalachian Mountains from the Great Falls of the Potomac River to east-central Alabama, in the gently sloping region known as the Piedmont. The field work was done during parts of 1934 and 1935, on funds allotted by the Public Works Administration.

Alabama;Georgia;North Carolina;South Carolina↗

USGS1926

Correlation of the basal Cretaceous beds of the Southeastern States

The basal Cretaceous deposits that fringe the inner margin of the Coastal Plain from eastern Alabama to central North Carolina, where they are overlapped by Miocene sands, have been commonly classified as of Lower Cretaceous age and correlated roughly with the Patuxent formation of the Potomac group of Maryland and Virginia. In this paper the evidence on which this early correlation was based is reviewed, later evidence is considered, and the conclusion is reached that all the basal Cretaceous deposits in the area under consideration are of Upper Cretaceous age. Acknowledgments are gratefully made of the helpful criticism of the manuscript by L. W. Stephenson and of his generous assistance in the preparation of the correlation table.

Alabama;Georgia;North Carolina;South Carolina↗