Osmium, ruthenium, iridium and uranium in silicates and chromite from the eastern Bushveld Complex, South Africa
R.h. Gijbels, Hugh T. Millard Jr., G. A. Desborough, A.J. Bartel
1974, Geochimica et Cosmochimica Acta (38) 319-337
Osmium, ruthenium, iridium and uranium contents were determined in eight ortho pyroxene, seven plagioclase, and three chromite mineral separates from the eastern Bushveld Complex. Neutron activation analysis was used to measure the platinum metals, and uranium was determined by a fission track technique....
Episodic Cenozoic volcanism and tectonism in the Andes of Peru
D. C. Noble, E.H. McKee, E. Farrar, U. Petersen
1974, Earth and Planetary Science Letters (21) 213-220
Radiometric and geologic information indicate a complex history of Cenozoic volcanism and tectonism in the central Andes. K-Ar ages on silicic pyroclastic rocks demonstrate major volcanic activity in central and southern Peru, northern Chile, and adjacent areas during the Early and Middle...
A solvent extraction study of molybdenum chloride and molybdenum thiocyanate complexes
L. P. Greenland, E.G. Lillie
1974, Analytica Chimica Acta (69) 335-346
The effect of reducing agents on molybdenum(VI) solutions in hydrochloric acid was studied by a solvent extraction technique to elucidate the composition of the colored molybdenum thiocyanate complex. Neither copper(I) chloride nor ascorbic acid have any effect on the extraction of MoO2Cl2; it is inferred...
Water quality effects of seepage from earthen dams
C. Yost Jr., J.W. Naney
1974, Journal of Hydrology (21) 15-26
Analyses of surface and seepage waters from selected floodwater retarding structures in west-central Oklahoma, U.S.A. show the salinity of seepage to be several times greater than that of the impounded waters. The increases in concentration of the several chemical components are not proportional....
Craters on Earth, Moon, and Mars: Multivariate classification and mode of origin
R.J. Pike
1974, Earth and Planetary Science Letters (22) 245-255
Testing extraterrestrial craters and candidate terrestrial analogs for morphologic similitude is treated as a problem in numerical taxonomy. According to a principal-components solution and a cluster analysis, 402 representative craters on the Earth, the Moon, and Mars divide into two major classes...
Erosion by catastrophic floods on Mars and Earth
V.R. Baker, D.J. Milton
1974, Icarus (23) 27-41
The large Martian channels, especially Kasei, Ares, Tiu, Simud, and Mangala Valles, show morphologic features strikingly similar to those of the Channeled Scabland of eastern Washington, produced by the catastrophic breakout floods of Pleistocene Lake Missoula. Features in the overall pattern include the...
Martian planetwide crater distributions: Implications for geologic history and surface processes
L.A. Soderblom, C.D. Condit, R.A. West, B.M. Herman, T. J. Kreidler
1974, Icarus (22) 239-263
Population-density maps of craters in three size ranges (0.6 to 1.2 km, 4 to 10 km, and >20 km in diameter) were compiled for most of Mars from Mariner 9 imagery. These data provide: historical records of the eolian processes (0.6 to 1.2 km craters); stratigraphic, relative, and absolute timescales...
Geological survey research 1974
Water Resources Division, U.S. Geological Survey
1974, Professional Paper 900
No abstract available....
Short-term fate of dietary dieldrin in the digestive tract of juvenile lake trout (Salvelinus namaycush)
Donald J. Stewart, Roy A. Stein
1974, Bulletin of Environmental Contamination and Toxicology (11) 563-566
Short-term fate of dietary dieldrin in the digestive tract of fishes is poorly known. Studies of the uptake, distribution, and elimination of chlorinated hydrocarbons have suggested that uptake or degradation is rapid in the intestine (GROSS 1969; MACEK et al. 1970; GRZENDA et al. 1970, 1971). The present study was...
Removal and deactivation of antimycin using carbon and chlorine
Verdel K. Dawson, Leif L. Marking
1974, Progressive Fish-Culturist (36) 19-19
No abstract available. ...
Records of precipitation, water levels, and ground-water recharge to the Edwards and associated limestones, San Antonio area, Texas, 1972-73
Celso Puente
1974, Edwards Underground Water District Bulletin 33
No abstract available....
Ground-water discharge from the Edwards and associated limestones, San Antonio area, Texas, 1973
R. A. Rappmund
1974, Edwards Underground Water District Bulletin 32
No abstract available....
Hydrologic data for North Creek, Trinity River basin, Texas, 1972
R.M. Slade Jr.
1974, Report
No abstract available....
Hydrologic data for urban studies in the Dallas, Texas, metropolitan area, 1972
B.C. Massey, C.M. Wood
1974, Report
No abstract available....
Hydrologic data for urban studies in the Fort Worth, Texas, metropolitan area, 1972
B.B. Hampton
1974, Report
No abstract available....
Hydrologic data for urban studies in the Houston, Texas, metropolitan area, 1972
D. E. Ferguson
1974, Report
No abstract available....
Hydrologic data for urban studies in the San Antonio, Texas, metropolitan area, 1972
R.D. Steger
1974, Report
No abstract available....
Hydrologic data for Little Pond Creek and North Elm Creek, Brazos River Basin, Texas, 1972
R.N. Mitchell
1974, Report
No abstract available....
Flood stages and discharges for small streams in Texas : compilation of data through September 1972
E.E. Schroeder
1974, Report
No abstract available....
Porosity, density, grain density, and related physical properties of sediments from the Red Sea drill cores
Frank T. Manheim, Linda Dwight, Rebecca A. Belastock
1974, Initial reports of the Deep Sea Drilling Project (23) 887-907
Representative sediments from each site were chosen for examination of their dry specific gravity and grain density. The determinations were made by micropycnometer; water was used as the displacing medium, and salt corrections were based on the refractive index measurements on interstitial water. For saltier brines the "salinities" derived from...
Stable isotope and lead isotope study of the Cortez, Nevada, gold deposit and surrounding area
R. O. Rye, B. R. Doe, J. D. Wells
1974, Journal of Research of the U.S. Geological Survey (2) 13-23
Isotope studies of sulfur, carbon, hydrogen, oxygen, and lead were carried out to clarify the age and origin of the Cortex gold deposit and the surrounding mineralized area. The hydrogen isotope data indicate that meteoric water was the dominant component of the ore-forming fluids at Cortez. The hydrogen isotope data support geologic evidence for a...
Water resources data for Pennsylvania, water year 1973; Part 1: Surface water records
1974, Water Data Report PA-73-1
No abstract available....
Salinity studies in East Glades Agricultural Area, southeastern Dade County, Florida
J.E. Hull, F.W. Meyer
1973, Open-File Report FL 73-005
Salinity studies in East Glades Agricultural Area, southeastern Dade County, Florida...
Reconnaissance of the water resources in the vicinity of proposed deep-well injection sites in southeast Dade County, Florida
J.E. Earle, F.W. Meyer
1973, Open-File Report 73-65
Deep-well injection has been selected by the Dade County Water and Sewer Authority as a means of disposing treated waste water in southeast Dade County. Preliminary plans call for the construction of a county-owned sanitary sewage treatment plant and several 3,000-foot deep injection wells at 1,000-foot intervals on Levee 31E....
Water resources data Maryland and Delaware, water year 1972, Part 1. Surface water records
Water Resources Division, U.S. Geological Survey
1973, Water Data Report MD-DE-72-1
No abstract available....
