Geology of the Humboldt region and the Iron King mine, Bigbug mining district, Yavapai County, Arizona
Saville Cyrus Creasey
1951, Open-File Report 51-43
The Humboldt region is in central Yavapai County, Arizona. The intersection of the 112? 15' meridian and the 34? 30' N parallel is in the approximate geographical center of the region, and the Iron King mine is about 2000 feet west-northwest of the intersection. Pre-Cambrian rocks form the bedrock in...
Preliminary report for open file on geology of the Canning quadrangle, South Dakota
Dwight R. Crandell
1951, Open-File Report 52-30
The Canning 15-minute quadrangle, near the center of South Dakota, is bordered on the east by the 100th Meridian and on the north by latitude 44°30'. The geology of the quadrangle has been mapped by the Engineering Geology Branch of the Geological Survey as part of a project in the...
Total intensity aeromagnetic map of Floyd County, Indiana
John R. Henderson Jr., J. L. Meuschke
1951, Geophysical Investigations Map 58
No abstract available....
Total intensity aeromagnetic map of Bartholomew County, Indiana
John R. Henderson Jr., J. L. Meuschke
1951, Geophysical Investigations Map 82
No abstract available....
Total intensity aeromagnetic map of Clark County, Indiana
John R. Henderson Jr., J. L. Meuschke
1951, Geophysical Investigations Map 54
No abstract available....
Construction materials in Graham County, Kansas
Frank E. Byrne, Vincent Bruce Coombs, Claude Williard Matthews
1951, Circular 51
Total intensity aeromagnetic map of part of Weingarten quadrangle, Missouri
William J. Dempsey, J. L. Meuschke
1951, Geophysical Investigations Map 81
No abstract available....
Total intensity aeromagnetic map of Blackford County, Indiana
William J. Dempsey, John R. Henderson Jr., R. T. Duffner
1951, Geophysical Investigations Map 52
No abstract available....
Geology of the Canyon Ferry quadrangle, Montana
John Beaver Mertie Jr., R. P. Fischer, S. W. Hobbs
1951, Bulletin 972
The fluorapatite system of equilibria in the conditions of formation of sedimentary rocks
A.V. Kazakov, V. L. Skitsky (translator)
1951, Trace Elements Investigations 385
Detroit River group in the Michigan basin
Kenneth K. Landes
1951, Circular 133
This report attempts to correlate the outcropping rocks in the type locality of the Detroit River group with the thick sequence of rocks that has been explored by many drilled wells in the Michigan Basin during the last twenty years. The surface nomenclature as recently revised (Ehlers, 1950) is suggested...
Conditions of the formation of fluorite in sedimentary rocks : the fluorite system
A.V. Kazakov, Elena Ivanovna Sokolova, V. L. Skitsky (translator)
1951, Trace Elements Investigations 386
Geologic report on Mile 186.5 dam site on Rogue River, Oregon
J.C. Miller
1951, Open-File Report 51-172
Trends in climate and in precipitation-runoff relation in Missouri River Basin
Roy E. Oltman, Hubert J. Tracy
1951, Circular 98
This report presents a study of trends in climate and in the relationship between precipitation and runoff in the Missouri River Basin for the period of available records. Long-term trends in annual precipitation are generally downward (or show a decline in precipitation) in the States of Montana, North Dakota, South...
Antimony ore in the Fairbanks district, Alaska
Pemberton Lewis Killeen, John B. Mertie Jr.
1951, Open-File Report 51-46
Antimony-bearing ores in the Fairbanks district, Alaska, are found principally in two areas, the extremities of which are at points 10 miles west and 23 miles northeast of Fairbanks; and one of two minor areas lies along this same trend 30 miles farther to the northeast. These areas are probably...
Ground-water resources of the Republic of El Salvador, Central America
Albert Nelson Sayre, Gary Charles Taylor
1951, Water Supply Paper 1079-D
Stratigraphic sections of the Phosphoria formation in Montana
R. W. Swanson, M. R. Klepper, W.R. Lowell, F.S. Honkala, E. R. Cressman, D.A. Bostwick, O.A. Payne, E. T. Ruppel
1951, Open-File Report 51-18-B
The first of a series of reports giving detailed stratigraphic sections of the Phosphoria formation in the Western phosphate field as measured and described by the Geological Survey will be released as Circulars within the next few months. Because of the needs of industry for many of these data during...
Geologic maps of Medicine Butte, Broncho, Golden Valley, Beulah, Stanton, and Hazen quadrangles, North Dakota
William Edward Barnes Benson
1951, Open-File Report 51-22
No abstract available. ...
Six cross sections and an index map of the Miami area, Florida, showing changes in the position of the salt front in the Biscayne aquifer from 1946 to 1950
N.D. Hoy
1951, Open-File Report 51-119
No abstract available....
Index of surface-water records, part 11, Pacific slope basins in California, to September 30, 1950
Water Resources Division, U.S. Geological Survey
1951, Circular 145
The index lists the stream-flow and reservoir stations in the Pacific Slope Basins in California for which records have been or are to be published for periods prior to September 30, 1950. The stations are listed in downstream order. Tributary streams are indicated by indention. Station names are given in their...
Preliminary report on the geology and ore deposits of the Willow Creek mining district, southern Alaska
Richard G. Ray
1951, Open-File Report 51-34
The Willow Creek mining district is a small but important lode gold mining district along the southern border of the Talkeetna Mountains in southern Alaska. To date the district has produced about 5 percent of Alaska's lode gold output. ...
Trace elements work of the Geological Survey
Vincent Ellis McKelvey
1951, Trace Elements Investigations 208
Third progress report on the cooperative investigation of springs and streamflow in the Tecolote Tunnel area of Santa Barbara County, California
C.E. Burgess
1951, Open-File Report 51-104
No abstract available. ...
Two preliminary aeromagnetic maps of the New Jersey Highland area, covering Franklin Furance, Stanhope, Dover, Chester, and Mendham quadrangles and parts of Hamburg and Newton East quadrangles, New Jersey
John R. Henderson
1951, Open-File Report 51-48
Bibliography of North American geology, 1949
Emma Mertins Thom, Marjorie Hooker, R.R. Dunaven
1951, Bulletin 977
