Foothills fault system, western Sierra Nevada, California
L. D. Clark
1960, Bulletin of the Geological Society of America (71) 483-496
A large fault system, here named the Foothills fault system, is the dominant structural feature of the western Sierra Nevada. The steeply dipping to vertical component faults trend northwestward through an area about 200 miles long and 30 miles wide north of 37°30' north latitude. The faulted Paleozoic and Mesozoic...
Glaciation of the east slope of Rocky Mountain National Park, Colorado
Gerald M Richmond
1960, Bulletin of the Geological Society of America (71) 1371-1382
The eastern slope of Rocky Mountain National Park, Colorado, has been subjected to at least three separate Pleistocene glaciations, which from oldest to youngest are correlated with the Buffalo, Bull Lake, and Pinedale glaciations of Blackwelder in the Wind River Mountains of Wyoming. In this area, deposits of the oldest glaciation are...
Mineral paragenesis of precambrian rocks in the Tenmile Range, Colorado
A. H. Koschmann
1960, Bulletin of the Geological Society of America (71) 1357-1370
A Precambrian complex of granulite, gneiss, and migmatite, intruded by numerous plutons of granitic rocks correlated with the Silver Plume granite, is exposed in a long narrow belt along the crest and upper slopes of the Tenmile Range, Colorado. The metamorphic rocks are predominantly felsic; bands, lenses, and irregular bodies of mafic rocks rich in biotite,...
Geophysical investigation of Mono Basin, California
L.C. Pakisek, F. Press, M. F. Kane
1960, Bulletin of the Geological Society of America (71) 415-448
Gravity and seismic studies in Mono Basin, Mono County, California, completed during the summer of 1957 revealed a large, roughly triangular block that had subsided about 18,000 ± 5000 feet and received an accumulation of about 300 ± 100 cubic miles of light clastic sediments and volcanic material of Cenozoic age....
Application of seismic methods to a ground-water problem in northeastern Ohio
R. E. Warrick, J.D. Winslow
1960, Geophysics (25) 505-519
Valleys cut in the bedrock in northeastern Ohio by Tertiary and Pleistocene streams have been filled by Pleistocene glacial drift so that there is little surface evidence of their existence. Some of these buried valleys are good sources of ground water, so information regarding the location, depth, and cross-section of the buried...
Geology of the Mayagüez area, Puerto Rico
Peter H. Mattson
1960, Bulletin of the Geological Society of America (71) 319-362
The Mayagüez area forms the southwestern corner of Puerto Rico, west of 67° W. and south of 18° 15' N. One-third of the 640 square kms is covered by thick alluvium. Unconformities separate a basal complex, two sequences of highly folded igneous and sedimentary rocks, and a younger sequence of gently...
Structure associated with rock creep in the Black Hills, South Dakota
J.J. Norton, J. A. Redden
1960, Geological Society of America Bulletin (71) 1109-1112
Many areas of schist in the southern Black Hills, South Dakota, have a thin zone of disintegrated rock that is 4-10 feet below the ground surface and parallel to it. Fresh, undeformed schist overlying this zone has moved downhill in a mass-wasting process since the present surface was formed. ...
Geologic description along U.S. Highway 299, between Weaverville and Arcata, California
W. P. Irwin
1960, Book chapter, Geological Society of Sacramento, Annual Field Trip, June 1960, Guidebook
No abstract available....
Position of the salt-water body in the magothy(?) formation in the Cedarhurst-Woodmere area of southwestern Nassau county, Long Island, N.Y.
N.J. Lusczynski, W.V. Swarzenski
1960, Economic Geology (55) 1739-1750
The position and chloride concentration of a sizable body of salt water, moving slowly landsyard from the south-shore bays of Long Island and the Atlantic Ocean were defined by recent test drilling in the Cedarhurst-Woodmere area of southwestern Nassau County, Long Island, N. Most of the salt-water body is in the lower part of a...
Municipal water supplies on the Mesabi and Vermillion Iron Ranges, northeastern Minnesota
R. D. Cotter, L.H. Young
1960, Report
No abstract available....
The chief oxide-burgin area discoveries, East Tintic district, Utah; A case history
J.B. Bush, D.R. Cook, T. S. Lovering, H. T. Morris
1960, Economic Geology (55) 1507-1540
In 1955 exploration for base and precious metals was undertaken by Bear Creek Mining Company immediately north of the Main Tintic district, Utah. During the course of this work Bear Creek became interested in the East Tintic district, primarily as a result of the activities of the U.S. Geological Survey in...
A rapid and accurate contour interpolator
O.T. Marsh
1960, Economic Geology (55) 1555-1560
An instrument called a "contourpolator" is described. The device is constructed from readily available materials costing about $2.00 and consists of 4 primary parts. Detailed instructions are provided for its assembly and use....
Metallization and post-mineral hypogene argillization, Lost River tin mine, Alaska
C.L. Sainsbury
1960, Economic Geology (55) 1478-1506
The Lost River tin and tungsten deposit occurs in a buried granite pluton and in associated rhyolite dikes that intrude Paleozoic limestone. The dikes and parts of the granite were greisenized and then argillized irregularly. Metallization accompanied greisenization rather than argilli-zation, although both processes probably were closely related in time. Iron-zinc ratios...
Scheelite in the precambrian gneisses of Colorado
O.L. Tweto
1960, Economic Geology (55) 1406-1428
Scheelite of Precambrian age has been found at several localities in Colorado and Wyoming in recent years. Most of it is disseminated in regionally metamorphosed rocks, principally in calc-silicate gneiss, but also in amphibolite. Small amounts are found in pegmatites and in gold-or copper-quartz veins of Precambrian age. The scheelite in most of the deposits contains molybdenum, and much of...
Mallard age and sex determination from wings
S.M. Carney, A. D. Geis
1960, Journal of Wildlife Management (24) 372-381
No abstract available. ...
Geological age of the Claypool site, northeastern Colorado
H.E. Malde
1960, American Antiquity (26) 215-222
Artifacts related to the Cody complex occur in medium-grained sand that is spread as a blanket eolian deposit a few feet thick in the Claypool site area, Washington County, Colorado. The artifact-bearing sand lacks noticeable dunal topography and lies unconformably on marl of Yarmouth age and on waterlaid coarse sand and fine...
Variation in surface elevation of the nisqually glacier Mt. Rainier, Washington
A. Johnson
1960, International Association of Scientific Hydrology - Bulletin (5) 54-60
Variation in surface elevations of the Nisqually Glacier has been recorded since 1942 by the annual measurement of three profiles across the glacier, designated as nos. 1, 2, and 3, located 0.5, 1.0, and 1.7 miles respectively from the terminus, at approximate mean elevations of 5,250,6,000, and 6,800 feet. A fourth...
Montana earthquakes noted in pennsylvania mine‐water pools
W.B. Hopkins, T.A. Simpson
1960, Eos, Transactions, American Geophysical Union (41) 435-436
A recent paper by daCosta [1959] reported water‐level fluctuations caused by the Montana earthquake of August 18, 1959, and mentioned the fluctuations registered in three mine‐water pools of the Northern anthracite field in northeastern Pennsylvania, ten miles north of Wilkes‐Barre. This paper will discuss the water‐level phenomena of these pools in more detail. Most...
Chemical equilibrium diagrams for ground-water systems/les graphiques de l'équilibre chimique pour les systèmes des eaux souterrainnes
J.D. Hem
1960, International Association of Scientific Hydrology - Bulletin (5) 45-53
Chemical equilibrium in water in contact with calcite is expressed by means of a pH grid overlay on a log-log plot of activities of bicarbonate vs. calcium ions. Solubility of ferrous iron and the solid-phase minerals that would be stable in a solution containing activities of 10 ppm of sulfate...
Mapping mean areal precipitation
D.R. Dawdy, W. B. Langbein
1960, International Association of Scientific Hydrology - Bulletin (5) 16-23
A method is presented for using point mean precipitation data to estimate areal values in regions of high relief. Variation of precipitation with altitude is determined. Local anomalies from this relationship are mapped, and lines of equal anomaly are drawn. By use of the mean relation corrected for the local anomaly, the mean precipitation at...
Big game inventory for 1959
U.S. Fish and Wildlife Service
1960, Wildlife Leaflet 425
No abstract available....
Fur catch in the United States, 1959
U.S. Branch of Wildlife Research
1960, Wildlife Leaflet 424
No abstract available....
Extract ability of humic acid from coalified logs as a guide to temperatures in colorado plateau sediments
Irving A. Breger, J.C. Chandler
1960, Economic Geology (55) 1039-1047
Coalified logs in Triassic and Jurassic sediments of the Colorado Plateau have been exposed to alkaline ground water. Extraction of humic acids under such conditions is temperature dependent. Study of residual humic acids in a suite of coalified logs has indicated that temperatures up to but not over 120° C prevailed in the sediments. This maximum temperature corresponds with that...
The chief oxide-burgin area discoveries, East Tintic district, Utah; A case history
J.B. Bush, D.R. Cook, T. S. Lovering, H. T. Morris
1960, Economic Geology (55) 1116-1147
The Burgin shaft is in the Chief Oxide area of the E. Tintic district, Utah, and is about a mile E. of any previously known ore bodies; workings from it are currently developing a substantial amount of commercial Pb-Zn ore in several blind ore bodies...
Review of paleomagnetism
Allan Cox, Richard R. Doell
1960, GSA Bulletin (71) 645-768
This review is an attempt to bring together and discuss relevant information concerning the magnetization of rocks, especially that having paleomagnetic significance. All paleomagnetic measurements available to the authors are here compiled and evaluated, with a key to the summary table and illustrations in English and Russian. The principles upon...
