Accession Number:

AD0416540

Title:

RECENT GEOMORPHIC HISTORY OF THE PONTCHARTRAIN BASIN, LOUISIANA,

Descriptive Note:

Corporate Author:

LOUISIANA STATE UNIV BATON ROUGE COASTAL STUDIES INST

Personal Author(s):

Report Date:

1962-05-15

Pagination or Media Count:

114.0

Abstract:

The Pontchartrain Basin, a large lowland area included in the Mississippi River deltaic plain, has a history closely related to the postglacial sea level rise and to major shifts in Mississippi River courses. The interpretation of the basins history and of the evolution of Lakes Pontchartrain and Maurepas is based on geomorphological and archaeological evidence. Significant landforms such as beaches and natural levees, both exposed and active as well as abandoned and buried through the action of subsidence, are discussed in detail and evaluated as clues to the paleogeography. Dating of significant events and establishment of a chronology has been possible through the use of numerous radiocarbon datings and a study of artifact collections from over 50 Indian sites. Collectively indicative of a period of over 3500 years, the sites also contain clues to former environmental conditions and changes and provide a method of evaluating subsidence. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE