Geophysical studies of the Cripple Creek mining district, Colorado
M. Dean Kleinkopf, Donald L. Peterson, Garland B. Gott
1970, Geophysics (35) 490-500
Integrated geophysical, geochemical, and geological interpretations expand the knowledge about the localization of the ore deposits in the Cripple Creek district, Colorado. The principal gold deposits occur in a Tertiary volcanic subsidence basin within Precambrian granite, gneiss, and schist. The basin is filled with volcanic...
Origin of the disturbed belt in northwestern Montana
Melville R. Mudge
1970, Article
The northern part of the disturbed belt in Montana is a northwesterly trending zone of closely spaced westerly dipping thrust faults, many folds, and some longitudinal normal faults and transverse faults. The theory of vertical uplift that results in gravitational gliding is a reasonable explanation of the origin of the...
Variations of major chemical constituents across the central Sierra Nevada batholith
P. C. Bateman, F. C. W. Dodge
1970, Bulletin of the Geological Society of America (81) 409-420
A study of 193 chemical analyses of plutonic rocks from 132 localities in the central Sierra Nevada shows convincingly that K2O decreases systematically westward and suggests that Fe2O3 and TiO2 may also decrease westward and that FeO, MgO, and CaO may increase. The ratio K2O/SiO2 obviously decreases westward across six of eight provisionally...
Geology and ground-water resources of Linn County, Iowa
Robert E. Hansen
1970, Water Supply Bulletin 10
Linn County, in east-central Iowa, covers about 713 square miles and lies in the Western Young Drift section of the Central Lowlands physiographic province. The normal annual rainfall in the county is about 88 inches and the annual mean temperature is about 48°F. The population in 1960 was 136,899, of...
Tertiary tectonics of the White Pine-Grant Range region, east-central Nevada, and some regional implications: Discussion
Harald Drewes
1970, Bulletin of the Geological Society of America (81) 319-321
No abstract available....
Foraminiferal zonation and carbonate facies of Carboniferous (Mississippian and Pennsylvanian) Lisburne group, central and eastern Brooks range, Arctic Alaska
Augustus K. Armstrong, Bernard L. Mamet, J. Thomas Dutro
1970, American Association of Petroleum Geologists Bulletin (54) 687-698
The Lisburne Group carbonate rocks of the central and eastern Brooks Range contain foraminiferal assemblages assigned to zones of late Tournaisian (Osage) to early Moscovian (Atoka) age. Representatives of both Eurasiatic and American cratonic microfaunas permit correlation with the original Carboniferous type sections in western Europe as well as with...
Taunton River basin
John R. Williams, Richard E. Willey
1970, Massachusetts Hydrologic - Data Report 12
The Taunton River, emptying into an arm of Narragansett Bay at Fall River, drains 528 square miles of interior southeastern Massachusetts. The Taunton River basin is separated from the basins of short streams draining to the coast by low divides on the east, south, and southwest. On the west and...
Structural control of wind gaps and water gaps and of stream capture in the Stroudsburg area
Jack B. Epstein
1969, Conference Paper, Geology of selected areas in New Jersey and eastern Pennsylvania and guidebook
No abstract available....
Petroleum potential of the Kandik basin, east-central Alaska
Michael Churkin, Earl E. Brabb
1969, Open-File Report 1305 MP
No abstract available....
Hydrogeologic data for the southwestern coastal river basins, Connecticut
Mendall P. Thomas, Robert B. Ryder, Chester E. Thomas Jr.
1969, Connecticut Water Resources Bulletin 18
This report presents hydrologic and geologic data collected by the U.S. Geological Survey during an investigation of water resources in the southwestern coastal river basins of Connecticut in cooperation with the Connecticut Water Resources Commission. These basins occupy about 394 square miles in Connecticut and 46 square miles in New York, including the towns...
Primitive and contaminated basalts from the Southern Rocky Mountains, U.S.A
B. R. Doe, P. W. Lipman, C. E. Hedge, H. Kurasawa
1969, Contributions to Mineralogy and Petrology (21) 142-156
Basalts in the Southern Rocky Mountains province have been analyzed to determine if any of them are primitive. Alkali plagioclase xenocrysts armored with calcic plagioclase seem to be the best petrographic indicator of contamination. The next best indicator of contamination is quartz xenocrysts armored with clinopyroxene. On the rocks and...
Effects of the earthquake of March 27, 1964, on various communities
George Plafker, Reuben Kachadoorian, Edwin B. Eckel, Lawrence R. Mayo
1969, Professional Paper 542-G
The 1964 earthquake caused wide-spread damage to inhabited places throughout more than 60,000 square miles of south-central Alaska. This report describes damage to all communities in the area except Anchorage, Whittier, Homer, Valdez, Seward, the communities of the Kodiak group of islands, and communities in the Copper River Basin; these...
Sedimentation in upper Stony Creek basin, eastern flank of the Coast Ranges of northern California
J. M. Knott, C.A. Dunnam
1969, Water Supply Paper 1798-F
No abstract available....
Tectonics of the March 27, 1964, Alaska earthquake
George Plafker
1969, Professional Paper 543-I
The March 27, 1964, earthquake was accomp anied by crustal deformation-including warping, horizontal distortion, and faulting-over probably more than 110,000 square miles of land and sea bottom in south-central Alaska. Regional uplift and subsidence occurred mainly in two nearly parallel elongate zones, together about 600 miles long and as much...
Foraminiferal zonation and carbonate facies of the Mississippian and Pennsylvanian Lisburne Group, central and eastern Brooks Range, Arctic Alaska
Augustus K. Armstrong, Bernard L. Mamet, J. Thomas Dutro Jr.
1969, Open-File Report 69-14
The Lisburne Group carbonates of the central and eastern Brooks Range contain foraminiferal assemblages assigned to zones of Osage [late Tournaisian], Early Mississippian, to Atoka [early Moscovian], Middle Pennsylvanian age. Representatives of both Eurasiatic and American cratonic microfaunas permit correlation with the original Carboniferous type sections in western Europe as...
Water resources of the Buffalo River Watershed, West-central Minnesota
Robert W. Maclay, L. E. Bidwell, Thomas C. Winter
1969, Hydrologic Atlas 307
The Buffalo River watershed includes two general physiographic areas – a glacial lake plain and an glacial moraine. The lake plain, which was formed by Glacial lake Agassiz more than 9,000 years ago, is extremely flat – sloping only a few feet per mile westward near the Red River of the...
Quality of surface waters of the United States, 1964, Parts 1 and 2, North Atlantic slope basins and South Atlantic slope and eastern Gulf of Mexico basins
Water Resources Division, U.S. Geological Survey
1969, Water Supply Paper 1954
Cretaceous sedimentation and tectonism in the southeastern Kaiparowits region, Utah
Fred Peterson
1969, Open-File Report 69-202
Upper Cretaceous strata in the southeastern Kaiparowits region of south-central Utah consist of approximately 3,500 feet of interfingering sandstone, mudstone, shale, and coal in the Dakota Formation (oldest), Tropic Shale, Straight Cliffs Formation, and Wahweap Formation (youngest). The formations consist of several depositional facies that can be recognized by characteristic...
Geologic map of the Park City East Quadrangle, Summit and Wasatch Counties, Utah
Calvin S. Bromfield, Max D. Crittenden Jr.
1969, Open-File Report 69-24
No abstract available. ...
Geology, hydrology, and water quality in the Fresno area, California
Roland Westland Page, R.A. LeBlanc
1969, Open-File Report 69-328
The Fresno area comprises about 1.400 square miles lying west of the foothills of the Sierra Nevada and east of the trough of the San Joaquin Valley. The rainfall averages less than 10 inches per year causing agricultural development to depend mainly on surface-water deliveries and ground-water pumpage. Surface-water deliveries...
Ground water in the Ogallala formation in the southern high plains of Texas and New Mexico
J.G. Cronin
1969, Hydrologic Atlas 330
The Ogallala Formation of Tertiary (Pliocene) age is the principal aquifer in the Southern High Plains of western Texas and eastern New Mexico. This heavily pumped aquifer supplies practically all the water used for irrigation, municipal, industrial (except oil-field repressuring), and domestic purposes. Although the ground water in the Ogallala Formation...
Preliminary geologic interpretation of aeromagnetic data in the Nixon Fork district, Alaska
Lennart A. Anderson, Bruce L. Reed, Gordon R. Johnson
1969, Open-File Report 69-9
An aeromagnetic map covering 480 square miles was compiled for the Nixon Fork district, which is located approximately 35 miles northeast of McGrath, Alaska. The survey was flown in search of concealed intrusive rocks which may have produced contact metamorphic deposits in limestone similar to the known lode deposits which...
Water resources of Wisconsin: Rock-Fox River basin
R. D. Cotter, R. D. Hutchinson, E.L. Skinner, D.A. Wentz
1969, Hydrologic Atlas 360
PURPOSE AND SCOPE The purpose of this report is to describe the physical environment, availability, distribution, characteristics, movement, quality, water problems, and use of water within the Rock-Fox River basin in order to aid in planning future water management within the basin. This report presents general information on the basin that was...
Effects of urban development on direct runoff to East Meadow Brook, Nassau County, Long Island, New York
G.E. Seaburn
1969, Professional Paper 627-B
The study described in this report is concerned with the effects of intensive urban development on direct runoff to East Meadow Brook, a southward-flowing stream in central Nassau County, N.Y., during the period 1937-66. The specific objectives of the study were (a) to relate indices of urban development to increases...
Aeromagnetic map of the Eastford quadrangle and part of the Hampton quadrangle, Tolland and Windham Counties, Connecticut
Water Resources Division, U.S. Geological Survey
1969, Geophysical Investigations Map 651
No abstract available....
