Final report documenting a high-sensitivity airborne gamma radiation and magnetic field survey of the Salisbury National Topographic Map segment (NJ 18-5 quadrangle) including a description of the program and results with the flight line profile data and statistical analysis results.

Partial abstract: The purpose of this study is to define the reliability with which results of tests conducted in a physical model of the Delaware River Estuary can be used to predict the effects of modifications to the estuary. The Delaware River model at the Waterways Experiment Station was used to conduct tests to predict the effects of the navigation channel enlargement between Philadelphia and Trenton, and the results of the tests are compared with subsequent prototype data to determine the accuracy of the model predictions.

From abstract: This report presents chemical-quality data collected from May 1980 to January 1981 at several locations within the Delaware River estuary and selected New Jersey tributaries.

From abstract: "The results of analyses of the airborne gamma radiation and total magnetic field survey flown for the region identified as the Wilmington National Topographic Maps, numbered NJ18-2 is presented in this report."