Articles

Paleoceanographic Model of Neogene Phosphorite Deposition, U.S. Atlantic Continental Margin

+ See all authors and affiliations

Science  13 Jan 1984:
Vol. 223, Issue 4632, pp. 123-131
DOI: 10.1126/science.223.4632.123

Abstract

The Neogene stratigraphic section of the southeastern U.S. continental shelf-coastal plain system is characterized by (i) a series of major regional phosphogenic episodes; (ii) a strong spatial relationship between the structural or topographic framework and phosphate deposition; and (iii) distinct cyclical and regional patterns of deposition of the terrigenous, carbonate, and phosphate lithofacies. The complex depositional patterns are explained by a paleoceanographic model based upon the interaction of glacial eustatic sea-level fluctuations, associated changes in climate, and the dynamics of the Gulf Stream in response to the bathymetric configurations of the continental margin during the past 20 million years.

Related Content