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.

Appendix containing data tables of the mean value of tidal data collected between various sites.

Appendix containing data listings of the monthly mean values for angiosperm samples studied.

Appendix A presents data tables recording the underground biomass for depth zones in stands of marsh plants.

Appendix providing data tables describing soil profiles for soils supporting the tidal marsh plants in Georgia, Delaware, and Maine.

This appendix contains data tables recording mineral compositions of underground macro-organic matter discovered between Delaware, Maine, and Georgia.

Appendix providing data sets on the monthly climatological sample records from NOAA.

Appendix D of a study on the productivity of minor marsh plants in Delaware, Georgia, and Maine. This appendix contains summaries of data collected from the study.

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: The Piedmont Upland in Maryland, Pennsylvania, and Delaware is about 160 miles long and at the most 50 miles wide. Rocks that underlie the province are the Baltimore gneiss of Precambrian age and quartzite, gneiss, schist, marble, phyllite, and greenstone, which make up the Glenarm series of early Paleozoic(?) age. These are intruded by granitic, gabbroic, and ultramafic igneous rocks. Most of the ultramafic rocks, originally peridotite, pyroxenite, and dunite, have been partly or completely altered to serpentine and talc; they are all designated by the general term serpentine. The bodies of serpentine are commonly elongate and conformable with the enclosing rocks.

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."

Abstract: "This report summarizes the importance of common species of salt marsh plants inhabiting wetlands of the eastern U.S. coast. An evaluation of the ecological significance of the plants is based on their rates of primary production, morality, and contribution of detritus to the estuarine dependent systems. The data are important in reaching decisions relative to the deposition of dredged material in these coastal wetland systems."

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Salisbury Quadrangle in New England.

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Salisbury Quadrangle in New England.

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Wilmington Quadrangle in New England.

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Wilmington Quadrangle in New England.

Map showing biological resources (aquatic organisms, terrestrial organisms, land use, etc.) in the Wilmington region of the Atlantic coast area. Scale 1:250,000.

Map showing biological resources (aquatic organisms, terrestrial organisms, land use, etc.) in the Salisbury region of the Atlantic coast area. Scale 1:250,000.

Maps of three segments in the Camden-Delaware Valley area surveyed as part of a radiological survey, outlining "Radioactivity levels in hundreds of counts per second normalized to 500 ft above ground." Scale 1:250,000.