The following report is the first of two volumes describing the program and results of the airborne gamma and total magnetic field surveys of the Reno quadrangle conducted between October 4-November 10, 1977.

Second volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of the Ashland quadrangle including maps documenting geophysical and geochemical data.

Second volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of the Iron River quadrangle including maps documenting geophysical and geochemical data.

Second volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of the Marquette quadrangle including maps documenting geophysical and geochemical data.

Second volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of the Hancock quadrangle including maps documenting geophysical and geochemical data.

Second volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of the Ashland quadrangle including magnetic, ancillary and radiometric data.

Second volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of the Iron River quadrangle including magnetic, ancillary and radiometric data.

Second volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of the Marquette quadrangle including magnetic, ancillary and radiometric data.

Second volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of the Hancock quadrangle including magnetic, ancillary and radiometric data.

Report of the test results of a pulsed eddy-current apparatus for inspecting the integrity of smooth and ribbed tubing as well as discussion of transducer and preamplifier features, scanning procedures, and theory of operation.

This report is the final report on the field investigations in Eaton's Neck Disposal Site, Long Island Sound.

A nondestructive autoradiographic method is described which can provide a verification that rods in the interior of unirradiated LWR fuel assemblies contain low-enriched uranium. Sufficient absorber must be used to reduce contributions to image density by beta radiation from uranium-238 daughters. When appropriate absorbers are used, the density of the image of a uranium-containing fuel rod is proportional to the uranium-235 enrichment in that rod. Exposure times as short as 1.5 hours can be achieved by using fast film and intensifying screens. Methods are discussed for reducing contributions to the image density of any single rod from radiation produced by all other rods in the assembly. The technique is useful for detecting missing rods, dummy rods, and rods containing depleted uranium. These defects can be detected by visual inspection of the autoradiographs. In its present state of development, the technique is not sensitive enough to reliably detect the difference between the various uranium-235 enrichments encountered in current BWR fuel assemblies. Results are presented for field tests of the technique at BWR and PWR facilities.

The following report documents the habitat relationships at 24 selected natural and dredged material colonial bird nesting sites and identifies the species and population sizes of all colonial nesting birds of the U.S. Great Lakes of up to 1.6 km inland.

Appendix to a report on the habitats and nesting populations of colonial nesting birds of the U.S. Great Lakes containing tabulated data of plants in sample areas of 23 intensely studied sites.

Appendix to a report on the habitats and nesting populations of colonial nesting birds of the U.S. Great Lakes containing a survey of colonial bird nesting areas in the Straits of Makinac, Potacannissing Bay and St. Mary's River areas, Michigan.

Appendix to a report on the habitats and nesting populations of colonial nesting birds of the U.S. Great Lakes containing data tabulations of the nesting colonies of birds on the Beaver Islands Archipelago in northern Lake Michigan.

This report compares the techniques used to measure re-aeration coefficients for Black Earth Creek and the Madison Effluent Channel near Madison, Wisconsin using radioactive and modified tracers. It contains maps, graphs, and photographs.

Maps show drilling plans in four areas of the the Silver Cliff Mine in Lusk, Wyoming.

Subassembly XX08 is a fueled and instrumented subassembly designed primarily for an ongoing program to investigate the thermal-hydraulic core environment within EBR-II under normal and off-normal plant operating conditions. XX08 contains 58-xenon-tagged, EBR-II Mark-II driver-fuel elements. The Mark-II fuel is expected to provide XX08 with an irradiation lifetime three times as great as that attained with its predecessor, XX07, i.e., a 9 versus 2.9% burnup. A burnup of 9 at.% is equivalent to about 29,000 MWt dyays of EBR-II reactor operation, which corresponds to 11 reactor runs at 2700 MWd per run.

Abstract: The Coast Guard has undertaken research to identify educational alternatives in its long term efforts to improve the safety of recreational boating.

TREAT F-series tests are being conducted to provide data on fuel motion in an LMFBR during a hypothetical loss-of-flow accident. Fuel and fuel-boundary conditions in an LMFBR subassembly following sodium voiding and dryout under loss-of-flow conditions are simulated in each F-series test. Simulation is achieved with a single fuel element surrounded by an annular nuclear-heated wall in a dry (no sodium) test capsule. The area inside the heated wall was selected to represent the area inside the perimeter of an LMFBR coolant channel. Test F1 was conducted with an irradiated fuel element to investigate the effect of fission gas on fuel motion at design power levels following cladding melting and drainage. The principal conclusion from Test F1 is that fission products retarded, but did not prevent, eventual fuel collapse. The collapse was retarded by a fuel/fission-product froth that prevented fuel collapse until the fission products separated from the partially molten fuel. The fuel motion observed in F1 represents a particular type of fuel (burnup of 2.35 at.%, power rating of 394 W/cm) transient heated at design power rating.

This report examines carbon-dioxide discharge in seismically active zones around the world. It contains a map of the "world distribution of carbon dioxide springs and major zones of seismicity."

This report is a compilation of reports made on the study of habitat development in Miller Sands Marsh and Upland Habitat Development Site in Columbia River, Oregon. This report provides data on birds, mammals, and terrestrial macroinvertebrates that were collected, analyzed, and compared with data from other regions of the United States.

From abstract: This report presents the results of the geochemical reconnaissance sampling in the Winnemucca 10 x 20 quadrangle of the National Topographic Map Series (NTMS). We collected wet and dry sediment samples throughout the 18,770-km2 arid to semi-arid area and water samples at available streams, springs and wells. We present neutron activation analyses of uranium and trace elements and other measurements made in the field and laboratory in tabular hardcopy and microfiche format. The report includes 5 full-size overlays for use with the Winnemucca NTMS 1:250,000 quadrangle. Water sampling sites, water-sample uranium and thorium concentrations, sediment sampling sites, and sediment-sample total uranium and thorium concentrations are shown on the separate overlays. We present general geological and structural descriptions of the area, and describe the 12 known uranium occurrences.