This report covers the progress made on an intensive program to develop and evaluate UO2 as a possible fuel element for the PWR.

Abstract: "Sound, fabricable ingots of thorium were produced by triple are melting of electrolytic thorium. Consumable electrodes were fabricated by tack welding of cold-pressed and vacuum-sintered bars of the granular thorium electrodeposited from a molten-salt bath. The hydrogen content of the electrodeposited material was reduced from 80 to 4 ppm by vacuum sintering at 1250 C at pressures below 1 x 10-(-3) mm of mercury. Both sodium and chlorine content were reduced during melting; sodium from 250 to 25 ppm and chlorine from 1000 to 30 ppm. Oxygen and HCl acid-insoluble contents increased during sintering and melting. Oxygen content increased from 0.35 to 0.50 w/o and HCl acid-insoluble content from 0.8 to 4.0 w/o. A starlike includion revealed by metallographic examination of the as-cast thorium was identified as ThO2."

Narrative report and radiometric data for the Lake Clark quadrangle in Alaska from an aerial gamma-ray spectrometer and magnetometer survey. The analysis includes U, Th, and K (uranium, thorium, and potassium) contents of rocks.

Narrative report and radiometric data for the Dillingham quadrangle in Alaska from an aerial gamma-ray spectrometer and magnetometer survey. The analysis includes U, Th, and K (uranium, thorium, and potassium) contents of rocks.

Abstract: The objectives of this study have been to determine the nature of the major fracture pattern of the Zuni uplift; to analyze this pattern for evidence of the mode of origin of the uplift; and to compare the fracturing in the ore areas with that elsewhere on the uplift to see whether diagnostic features exist hat might make it possible to indicate other favorable areas.

Abstract: Napier Drilling Company of Dallas, Texas drilled 53,998.0 feet for exploration purposes, under Contract No. AT(05-1)-256. This footage was drilled in 508 holes during the period from June 21, 1954 through May 13, 1955.

Abstract: A drilling program was conducted by the Atomic Energy Commission on Cove Mesa, Arizona to further develop uranium and vanadium ore reserves that are vital to the National Defense. The drilling was performed by the Minerals Engineering Company of Grand Junction, Colorado. Uranium and vanadium ore horizons are found in the Salt Wash member of the Morrison formation on Cove Mesa.

From introduction: This volume contains information and survey results pertaining specifically to the Shelby NTMS 1:250,000 scale Quadrangle, Montana, one of a group of 12 such quadrangles in Arizona, Idaho, Montana, New Mexico, South Dakota, and Washington included in an aerial radiometric and magnetic reconnaissance survey. General information concerning the instrumentation and methods used in data acquisition, processing, and interpretation is presented in Volume 1 of this final report.

From introduction: This volume contains information and survey results pertaining specifically to the Havre NTMS 1:250,000 scale Quadrangle, Montana, one of a group of 12 such quadrangles in Arizona, Idaho, Montana, New Mexico, South Dakota, and Washington included in an aerial radiometric and magnetic reconnaissance survey. General information concerning the instrumentation and methods used in data acquisition, processing, and interpretation is presented in Volume 1 of this final report.

From introduction: This volume contains information and survey results pertaining specifically to the Lewistown NTMS 1:250,000 scale Quadrangle, Montana, one of a group of 12 such quadrangles in Arizona, Idaho, Montana, New Mexico, South Dakota, and Washington included in an aerial radiometric and magnetic reconnaissance survey. General information concerning the instrumentation and methods used in data acquisition, processing, and interpretation is presented in Volume 1 of this final report.

From introduction: This volume contains information and survey results pertaining specifically to the Twin Falls NTMS 1:250,000 scale Quadrangle, Idaho, one of a group of 12 such quadrangles in Arizona, Idaho, Montana, New Mexico, South Dakota, and Washington included in an aerial radiometric and magnetic reconnaissance survey. General information concerning the instrumentation and methods used in data acquisition, processing, and interpretation is presented in Volume 1 of this final report.

Abstract: A four-week reconnaissance of certain portions of the mountainous area in Gila and Pinal Counties, Arizona, was undertaken in March and April, 1953, to inspect accessible outcrops of Dripping Spring quartzite, a pre-Cambrian formation which has lately attracted the interest of the Atomic Energy Commission by the discovery of two separate occurrences of uranium mineralization. Although no new deposits were found during the field work, a more thorough examination of the quartzite seems warranted. Recommendations for further prospecting by airborne and ground methods are presented in this report, and are based largely on observations made during the brief visit.

Abstract: Hunt's Mesa was examined on June 2 and 3, 1951, by the writer assisted by R. C. Cutter. Two channels were located and studied. Outcrops of the channels are mineralized, the mineralization being of the copper-uranium variety. There are indications that an appreciable quantity of ore can be found by exploration drilling. A program of 25,000 feet of wagon drilling is recommended.

Abstract: Yazzie Mesa was examined in May 1951, by the writer, assisted by R. C. Cutter. The mesa shows one main channel deposit and three minor channels. The main channel appears to be a northern extension of a channel deposit being worked by the Vanadium Corporation of America at their Monument No. 2 mine. Two samples taken on the south outcrop of the main channel assayed 0.16% U308 over 4.5 feet and 0.80% U308 over 1 foot. The area is recommended for 10,000 feet of exploration drilling. It is not intended to recommend this footage as a separate contract unit as this report covers only a small part of an area in which drilling will be recommended in forthcoming reports.

The following microfiche covers flight line data for the Enid area of the Great Plains as part of the parent document, Aerial Radiometric and Magnetic Reconnaissance Survey of Portions of the Great Plains and Central Lowlands: Volume 1. Final Report.

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Tulsa quadrangle in the Great Plains.

The following microfiche record flight line data for the Sioux City area in the Great Plains as part of its parent document, Aerial Radiometric and Magnetic Reconnaissance Survey of Portions of the Great Plains and Central Lowlands: Volume 1. Final Report.

The following microfiche record flight line data for the Lamar area in the Great Plains as part of its parent document, Aerial Radiometric and Magnetic Reconnaissance Survey of Portions of the Great Plains and Central Lowlands: Volume 1. Final Report.

The following microfiche covers flight line data for the Enid area of the Great Plains as part of the parent document, Aerial Radiometric and Magnetic Reconnaissance Survey of Portions of the Great Plains and Central Lowlands: Volume 1. Final Report.

The following microfiche covers statistical analysis data for the Grand Island area of the Great Plains as part of the parent document, Aerial Radiometric and Magnetic Reconnaissance Survey of Portions of the Great Plains and Central Lowlands: Volume 1. Final Report.

The following microfiche covers statistic analysis data for the Broken Bow area of the Great Plains as part of the parent document, Aerial Radiometric and Magnetic Reconnaissance Survey of Portions of the Great Plains and Central Lowlands: Volume 1. Final Report.

The following microfiche covers statistical analysis data for the Joplin area of the Great Plains as part of the parent document, Aerial Radiometric and Magnetic Reconnaissance Survey of Portions of the Great Plains and Central Lowlands: Volume 1. Final Report.

The following microfiche covers flight line data for the Dodge City area of the Great Plains as part of the parent document, Aerial Radiometric and Magnetic Reconnaissance Survey of Portions of the Great Plains and Central Lowlands: Volume 1. Final Report.

The following microfiche covers flight line data for the Beloit area of the Great Plains as part of the parent document, Aerial Radiometric and Magnetic Reconnaissance Survey of Portions of the Great Plains and Central Lowlands: Volume 1. Final Report.