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Magnetite deposits near Klukwan and Haines, southeastern Alaska
Eugene C. Robertson
1956, Open-File Report 56-101
Low-grade iron ore is found in magnetite-bearing pyroxenite bodies near Klukwan and Haines in Southeastern Alaska. An alluvial fan at Haines also contains magnetite-bearing rock of possible economic significance. The Haines-Klukwan area is underlain by rocks of Mesozoic Including epidote diorite, quartz diorite, and alaskite of the Coast Range batholith,...
Engineering geology of the Nenana-Rex area, Alaska
Reuben Kachadoorian
1956, Open-File Report 56-67
A geological examination of the Nenana-Rex area, Alaska, was made during August, 1954 by a Geological Survey party consisting of Reuben Kachadoorian, geologist, and Lloyd Plafker, field assistant. The area examined lies in parts of the Fairbanks A-4, A-5, B-4, B-5, C-4 and C-5 quadrangles (fig. 1). A preliminary highway...
Zinc and copper mineralization of the Vazante area, Minas Gerais, Brazil
Samuel L. Moore
1956, Open-File Report 56-82
A large body of zinc and copper mineralization is exposed in a line of low hills about 5 kilometers east of the small village of Vazante in the northwestern part of the state of Minas Gerais, Brazil. The Vazante area can be reached by roads leading north from the State...
Geology of southeastern Ventura Basin, Los Angeles County, California
Edward L. Winterer
1956, Open-File Report 56-134
The Ventura Basin (see index map, fig. 1) has long been one of the important oil-producing districts of California. The eastern part of the Basin includes some of the oldest oil fields in the state and also several of those most recently discovered. Since 1937 several new fields have been...
Annotated list of plants of Arctic Slope of Alaska
Lloyd Anthony Spetzman
1956, Open-File Report 56-110
The accompanying 5-page list of 439 higher plants was compiled as part of a manuscript to be included in a series of professional papers on Naval Petroleum Reserve No. 4 and adjoining areas.This check list describing the distribution, abundance, flowering period, plant growth on various rook types, and other habitat...
Geology and ore deposits of the Monument Valley area, Apache and Navajo Counties, Arizona
Irving Jerome Witkind
1956, Open-File Report 57-124
In 1951 the U.S. Geological Survey undertook a program of uranium investigations in Apache and Navajo Counties, northeastern Arizona. The work had three major objectives. The first was to accumulate data basic to an understanding of the regional geology. The second was to appraise the Triassic strata as host rocks...
Gravity survey of Ogden Valley, Weber County, Utah
Samuel Woods Stewart
1956, Open-File Report 56-112
Ogden Valley is a northwest trending valley within the Wasatch Mountains of north-central Utah. On the basis of geological evidence Ogden Valley is believed to be structurally controlled by normal faults along both the east and west margins. Gravity measurements in the valley definitely indicate a fault with at least...
Geology and petrology of the Lava Mountains, San Bernardino County, California
George I. Smith
1956, Open-File Report 56-109
The Lava Mountains are a range of low mountains along the northern edge of the Mojave Desert, California. The pre-Tertiary rocks consist of a few swell pendants of metamorphic rocks in Atolia quartz monzonite. Overlying these are small patches of volcanic and sedimentary rocks, probably Tertiary, which project into the...