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Page 6004, results 150076 - 150100

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Sedimentology: general introduction and definitions : fluvial sediment and channel morphology
Roger G. Wolff, Paul C. Benedict
1964, Report
Sedimentology, the study of sedimentary rocks and the processes by which they are formed, includes and is related to a large number of phenomena. Sedimentology includes the five fundamental processes defined by the term sediaentation --weathering, erosion, transportation, deposition and diagenesis. Sedimentology shares with geomorphology the study of the surface...
Soil mechanics and soil physics symbols and nomenclature useful in hydrologic studies
A.I. Johnson
1964, Report
The study of hydrology requires an interdisciplinary approach, incorporating knowledge from fields such as engineering, geology, chemistry, and agriculture. With increasing frequency, the hydrologist finds it necessary to study the literature of the soil mechanics and soil physics disciplines for assistance in the solution of hydrologic problems. Because of the inter-relation between hydrology and soil mechanics...
Hydrologic factors pertinent to ground‐water contamination
R. Brown
1964, Groundwater (2) 5-12
Predictions of where and how a fluid waste may travel from disposal site to the water table require detailed information on the physical characteristics, location, and extent of all pervious and impervious materials in the unsaturated zone. Principles concerning the flow system in the unsaturated zone indicate the importance of choice of...
Hydrologic factors pertinent to ground‐water contamination
R. Brown
1964, Groundwater (2) 5-12
Predictions of where and how a fluid waste may travel from disposal site to the water table require detailed information on the physical characteristics, location, and extent of all pervious and impervious materials in the unsaturated zone. Principles concerning the flow system in the unsaturated zone indicate the importance of choice of...
Surface water records of California, 1964; Volume 2: Northern Great Basin and Central Valley
Water Resources Division, U.S. Geological Survey
1964, Water Data Report CA-64-2
The surface-water records for the 1964 water year for gaging stations, partial-record stations, and miscellaneous sites within the State of California are given in this report. For convenience there are also included records for a few pertinent gaging stations in bordering States. The records were collected and computed by the...
The electrum-tarnish method for the determination of the fugacity of sulfur in laboratory sulfide systems
P. B. Barton Jr., P. Toulmin III
1964, Geochimica et Cosmochimica Acta (28) 619-640
A new method for the determination of the fugacity of sulfur in laboratory systems consists of visual observation of the development and decomposition of a sulfide tarnish phase on silver-gold alloy (electrum) of precisely known composition. The alloy system is calibrated against pure sulfur. The method has the following advantages:...
Catalytic determination of vanadium in water
M. J. Fishman, M. W. Skougstad
1964, Analytical Chemistry (36) 1643-1646
A kinetic determination of V(V) as a catalyst was spectrophotometrically performed by using the indicator reaction of Gallamine blue (GB+) and bromate at pH 2.0. The reaction was followed by measuring absorbance change for a fixed-time of 3 min at 537 nm. The variables such as reagent...
Submicroscopic spherules and color of tektites
A. N. Thorpe, F. E. Senftle
1964, Geochimica et Cosmochimica Acta (28)
Magnetic susceptibility measurements of 18 tektites from various strewn fields have been made as a function of temperature from 77°K to room temperature. A relatively large temperature-independent component of the magnetic susceptibility was observed in all cases, and an analysis of the data...
Simazine and other s-triazine compounds as aquatic herbicides in fish habitats
C.R. Walker
1964, Weeds (12) 134-139
This investigation studied simazine (2-chloro-4,6-bis(ethylamino)-s-triazine), atrazine (2-chloro-4-ethylamino-6-isopropylamino-s-triazine), propazine (2-chloro-4,6-bis(isopropylamino)-s-triazine), and prometone (2-methoxy-4,6-bis(isopropylamino)-s-triazine). Preemergence applications of granular formulations of simazine on attaclay or calcium sulfate of simazine at 1 to 2 ppmw controlled Potamogeton, Najas, Ceratophyllum, Heteranthera and Zannichellia. Higher rates were required to control filamentous algae (Cladophora and <span...