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This report presents the results of work done in the last three weeks of the 1950 field season and in all of the 1951 season, and supplements reports by Barnes (19149) and Cobb (1950, 1951). Barnes' report covers investigations of coal-bearing rocks of the Tertiary Kenai formation in a coastal...

Renewed copper exploration by Alaska Copper Mines, Incorporated, at the Nelson and Radovan prospects, Nizina district, Alaska, led the Geological Survey in 1951 to map in detail the Nelson fault block, and to re-examine the old workings. In addition, two new prospects were studied. The Nelson fault block is cut by...

The deposit here described is on Marsh Mountain, three miles due east of the village of Aleknagik (Mosquito Point), near the foot of Wood River Lakes (see-fig. 1)....

Since the end of World War II, the pattern of sulfur production and consumption in the United States and abroad has changed markedly from the pattern that existed before the war. Although production of sulfur in the United States in 1950 was more than double the average annual production for...

The Alaska-Juneau lode system for many years was one of the worlds leading gold-producing areas. Total production from the years 1893 to 1946 has amounted to about 94 million dollars, with principal values in contained gold but with some silver and lead values. The principal mine is the Alaska-Juneau mine,...

The clay deposit here described is located on the west side of the Alaska Railroad about 3.7 miles south of Nenana in N.E. 1/4 Sec. 3, T. 5 S., R. 8 W. (see figure 1). The surface of the deposit has a relief of less than 10 feet and is...

Marl occurs in several localities in the Cook Inlet area in south-central Alaska. The most significant known deposits are found in the Wasilla area, about 30 miles north of the city of Anchorage.In this area marl has been deposited in three fresh water lakes--Wasilla Lake, Finger Lake and Lucile Lake....

Summaries of the geology and mineral deposits, and appraisals of the uranium possibilities of the various regions of Alaska are presented in this report. A short statement on previous knowledge and investigation of radioactive materials in the Territory is also given. The review of data and appraisal for the Seward...

No abstract available....

Samples of 17 volcanic rocks of Tertiary and Quaternary age from Adak and Kanaga islands have been chemically analyzed and studied microscopically. Spectrograms have been made of 10 of them. The rocks from Adak represent one center of possibly older Tertiary age and two centers of younger Tertiary or Quaternary age. The rocks from Kanaga Island represent both a shield volcano of possibly Tertiary age, partly destroyed by the formation of a caldera, and a young cone of Quaternary age that...