Preliminary bedrock geologic map, Wiseman and eastern Survey Pass quadrangles, Alaska
W. P. Brosge, H. N. Reiser
1971, Open-File Report 71-56
No abstract available....
Water resources of the upper White River basin, east-central Indiana
L. W. Cable, J. F. Daniel, R. J. Wolf, C. H. Tate
1971, Water Supply Paper 1999-C
Ground-water discharge to the streams sustains year-round streamflow in the upper White River basin. This discharge, referred to as ground-water runoff or base runoff, is considered to be an index to the amount of g ound water available for development. A comparison of the variations of groundwater runoff and aquifer...
Underground storage of imported water in the San Gorgonio Pass area, southern California
Richard M. Bloyd
1971, Water Supply Paper 1999-D
The San Gorgonio Pass ground-water basin is divided into the Beaumont, Banning, Cabazon, San Timoteo, South Beaumont, Banning Bench, and Singleton storage units. The Beaumont storage unit, centrally located in the agency area, is the largest in volume of the storage units. Estimated long-term average annual precipitation in the San...
Prospects for developing stock - Water supplies from wells in northeastern Garfield County, Montana
M. C. Van Lewen, Norman Julius King
1971, Water Supply Paper 1999-F
Ground-water resources in northeastern Garfield County, Mont., afford a practical and reliable source of stock water on the intermingled public and private grazing lands that together comprise an area of about 1,200 square miles. The oldest formation exposed in the area is the relatively thick and impermeable Bearpaw Shale of...
Aeromagnetic map of the Challis, May, Lone Pine Peak, and Doublespring quadrangles, east-central Idaho
Water Resources Division, U.S. Geological Survey
1971, Open-File Report 71-291
No abstract available. ...
Summary of floods in the United States during 1966
J.O. Rostvedt
1971, Water Supply Paper 1870-D
This report describes the outstanding floods in the United States during 1966. The four most destructive floods occurred during March-April in the Red River of the North basin in northwestern Minnesota, during April-May in northeastern Texas, in August, in east-central Nebraska, and in December, in the Southwestern United States. For...
Hydrology of two small river basins in Pennsylvania before urbanization, with a section on observation of stream fauna
R. Adam Miller, John Troxell, Luna Bergere Leopold, Ruth Patrick, Robert R. Grant Jr.
1971, Professional Paper 701-A
Basic data on water quantity, chemical quality, and suspended sediment are tabulated to record the conditions existing in two basins near Philadelphia, each about 32 square miles in area. The basins in 1970 are agricultural land for the most part, but urban and industrial development is imminent as the Philadelphia...
Regional geologic map of San Andreas and related faults in eastern San Gabriel Mountains, San Bernardino Mountains, western San Jacinto Mountains and vicinity, Los Angeles, San Bernardino, and Riverside Counties, California
T. W. Dibblee Jr.
1971, Open-File Report 71-88
No abstract available....
Geology and mineral deposits, east flank of the Elkhorn Mountains, Broadwater County, Montana
Montis Ruhl Klepper, E. T. Ruppel, V. L. Freeman, R. A. Weeks
1971, Professional Paper 665
No abstract available....
Structural implications of an offset Early Cretaceous shoreline in northern California
D. L. Jones, W. P. Irwin
1971, GSA Bulletin (82) 815-822
Recognition of a nonmarine to marine transition in sedimentary rocks at Glade Creek and Big Bar in the southern Klamath Mountains permits reconstruction of the approximate position of a north-trending Early Cretaceous (Valanginian) shoreline. At the southern end of the Klamath Mountains, the shoreline is displaced 60 mi or more...
The earthquake sequence near Danville, California, 1970
W.H.K. Lee, M.S. Eaton, E. E. Brabb
1971, Bulletin of the Seismological Society of America (61) 1771-1794
Several thousand small earthquakes, with magnitudes ranging up to 4, occurred near Danville, California, during May, June, and July 1970. Seven temporary seismographs were installed near the epicentral region to augment an existing telemetered network within 1 day after the first felt earthquake. The dense concentration of 10 seismographs within...
Origin of the differentiated and hybrid lavas of Kilauea Volcano, Hawaii
Thomas L. Wright, Richard S. Fiske
1971, Journal of Petrology (12) 1-65
Kilauea Volcano has erupted lava from its summit caldera and from two rift zones that extend from the summit towards the east and south-west. Lavas erupted from the summit of the volcano differ from each other principally in their content of olivine and define lines of ‘olivine control’ on magnesia...
Interpretation of an aeromagnetic strip across the northwestern United States
Isidore Zietz, B. Carter Hearn, Michael W. Higgins, G. D. Robinson, Donald A. Swanson
1971, Bulletin of the Geological Society of America (82) 3347-3372
This report discusses the results of aeromagnetic survey bounded by latitudes 45°30′ N. and 47°00′ N. and extending from the Rocky Mountains, to approximately 120 mi offshore in the Pacific Ocean. East of the Rocky Mountains, a larger area has been surveyed in the Great Plains bounded approximately by latitudes...
Upper Cenozoic basalts with high Sr87/Sr86 and Sr/Rb ratios, southern Great Basin, western United States
Carl E. Hedge, Donald C. Noble
1971, Bulletin of the Geological Society of America (82) 3503-3509
Upper Cenozoic basalts from southwestern Nevada and east-central California are unusually rich in both strontium (~ 1,200 ppm) and Sr87 (initial Sr87/Sr86 ~ 0.707). The average Rb/Sr ratio of these basalts is too low to have generated the observed Sr87/Sr86 ratio during the 4.6 b.y. of the Earth's...
Evolving subduction zones in the western United States, as interpreted from igneous rocks
P. W. Lipman, H.J. Prostka, R.L. Christiansen
1971, Science (174) 821-825
Variations in the ratio of K2O to SiO2 in andesitic rocks suggest early and middle Cenozoic subduction beneath the western United States along two subparallel imbricate zones dipping about 20 degrees eastward. The western zone emerged at the continental margin, but the eastern zone was entirely beneath the continental plate. Mesozoic...
A starling-deterrent wood duck nest box
Frank B. McGilvrey, Francis M. Uhler
1971, Journal of Wildlife Management (35) 793-797
In many parts of the United States, the starling (Sturnus vulgaris) has I become a serious competitor for nest boxes erected for wood ducks (Aix sponsa). Research at the Patuxent Wildlife Research Center and at Eastern Neck National Wildlife Refuge near Rock Hall, Maryland, demonstrated that horizontal nest structures with...
Relations of folded dikes and Precambrian polyphase deformation, Gardner Lake area, Beartooth Mountains, Wyoming
Lawrence C. Rowan, Paul A. Mueller
1971, Bulletin of the Geological Society of America (82) 2177-2185
Two cross-cutting mafic dikes in the headwall of Gardner Lake in the eastern Beartooth Mountains, Wyoming, have structural relations with Archean migmatite and gneiss that suggest intrusion between deformational phases recognized in the eastern part of the range. Fabric data show that the older dike,...
Evolution of thought on ore controls in east Tennessee
Robert A. Laurence
1971, Economic Geology (66) 696-700
All early students of the zinc and barite deposits of East Tennessee, noting the geographic coincidence of the principal mining area with complex late Paleozoic geologic structure, concluded that (1) the ore-bearing breccias were produced by Appalachian tectonic forces and that (2) mineralizing solutions gained...
Evidence on the age mineralization in the of east of barite, zinc, and iron lower paleozoic rocks Tennessee
R.H. Carpenter, J.M. Fagan, H. Wedow Jr.
1971, Economic Geology (66) 792-798
Based on a study of minor occurrences of zinc, barite, and iron in East Tennessee, certain deposits are interpreted to have formed during early Middle Ordovician time. Principal lines of evidence supporting this age are: (1) the occurrence of barite, sphalerite, and pyrite associated with synsedimentary collapse breccias which span...
An early middle ordovician age for collapse breccias in the east Tennessee zinc districts as indicated by compaction and porosity features
W. T. Hill, H. Wedow Jr.
1971, Economic Geology (66) 725-734
The carbonate strata of the Lower Ordovician formations in the southern Appalachian Valley were probably considerably thicker, less compacted, and more porous and permeable in early Middle Ordovician time than they are now. Analysis of selected compaction features of rocks associated with the breccias of the East Tennessee zinc districts...
Problems on the origin of ore deposits in the lower Ordovician formations of east Tennessee
W. T. Hill, J. E. McCormick, Helmuth Wedow Jr.
1971, Economic Geology (66) 799-804
Most recent workers in the East Tennessee zinc and barite districts are in general agreement that the host breccias were formed by solution-collapse processes in early Middle Ordovician time, probably in an ancient carbonate aquifer system of regional extent. There is little agreement, however, on...
Fluid-inclusion evidence on the environment of formation of mineral deposits of the southern Appalachian valley
Edwin Roedder
1971, Economic Geology (66) 777-791
Approximately 1,330 fluid inclusions were studied in samples of ore and gangue minerals from both massive ore and late-stage vugs from a series of Appalachian deposits and five active mines in the East Tennessee zinc districts. Most primary inclusions in sphalerite, fluorite, dolomite, and quartz...
Sea level as affected by river runoff, eastern United States
R.H. Meade, K.O. Emery
1971, Science (173) 425-428
Variations in annual river inflow account for 7 to 21 percent of the total variation in average annual sea level along the Atlantic and Gulf of Mexico coasts of the United States. This compares with 29 to 68 percent of the total variation that can be attributed to the secular...
Origin of ridge-top depressions by large-scale creep in the Olympic Mountains, Washington
Rowland W. Tabor
1971, Bulletin of the Geological Society of America (82) 1811-1822
In the high mountain area of the Olympic Mountains, Washington, there are many troughlike depressions on and essentially parallel to ridge tops. The troughs are mostly developed on rocks with strong planar anisotropy: slate, sandstone, and phyllite. Similar features in Europe, Japan, and New Zealand...
Quaternary faulting in the eastern Alaska Range
D.H. Richter, N.A. Matson Jr.
1971, Bulletin of the Geological Society of America (82) 1529-1540
Quaternary faulting is well displayed along the Denali fault system and the recently recognized and related Totschunda fault system in the eastern Alaska Range. The principal movement on both fault systems is right-lateral strike-slip. Offset glacial features of Wisconsin age indicate minimum Holocene slip rates of 1.1 to 3.5 cm...