NURE aerial gamma-ray and magnetic reconnaissance survey: Cook Inlet, Alaska Area. Volume I. Narrative report

Technical Report · Sat Jul 01 04:00:00 EDT 1978

OSTI ID:6568322

As part of the Department of Energy (DoE) National Uranium Resource Evaluation (NURE) Program, LKB Resources, Inc. has performed a rotary-wing, reconnaissance high sensitivity radiometric and magnetic survey covering the Alaska portion of twenty-nine 1:250,000 NTMS quadrangles. A total of 21,409 line miles (34,455 line kilometers) of data were collected during the 1976 and 1977 flying seasons utilizing a Bell 205A-1 in 1976 and a Sikorsky S58T in 1977. Traverse lines were flown in an east-west direction at 6.25 mile (10 kilometer) spacing, with tie lines flown in a north-south direction at 25 mile (40 kilometer) spacing. The data were digitally recorded at 2.0-second intervals. The NaI crystal detectors used in this survey had a volume of 2,154 cubic inches for the terrestrial sensors. The magnetometers employed were a modified ASQ-10 fluxgate (1977) and a Varian V-85 proton (1976). This report covers only the Cook Inlet area comprising the Tyonek, Kenai, Seldovia, Seward, and Blying Sound NTMS 1:250,000 scale quadrangles which were flown during the 1976 season and the Anchorage quadrangle which was flown during the 1977 season. The Eastern Alaska, Chugach/Yakutat, and Southeastern Areas are covered in separate reports. The radiometric data was normalized to 400 feet terrain clearance. The data is presented in the form of computer listings on microfiche and as stacked profile plots. The profile plots are contained in Volume II of this report. A geologic interpretation of the radiometric and magnetic data has been performed by International Exploration, Inc. Large, permanent ice fields and large bodies of water were excluded from the survey since there would be no detectable gamma-rays from these ice or water covered areas. Rather large areas of swamps in certain areas resulted in low radiometric count rates.

• Research Organization: LKB Resources, Inc., Huntingdon Valley, PA (USA)
• DOE Contract Number: EY-76-C-13-1664
• OSTI ID: 6568322
• Report Number(s): GJBX-108(78)(Vol.1)
• Country of Publication: United States
• Language: English

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11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
AERIAL PROSPECTING
AERIAL SURVEYING
ALASKA
DATA
DATA COMPILATION
DATA FORMS
GAMMA SPECTROSCOPY
GEOLOGIC DEPOSITS
GEOPHYSICAL SURVEYS
GULF OF ALASKA
INFORMATION
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MAPS
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NUMERICAL DATA
PACIFIC NORTHWEST REGION
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