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Page 4675, results 116851 - 116875

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$ANBA; a rapid, combined data acquisition and correction program for the SEMQ electron microprobe
James J. McGee
1983, Open-File Report 83-817
$ANBA is a program developed for rapid data acquisition and correction on an automated SEMQ electron microprobe. The program provides increased analytical speed and reduced disk read/write operations compared with the manufacturer's software, resulting in a doubling of analytical throughput. In addition, the program provides enhanced analytical features such as...
Lake Ellen kimberlite, Michigan, U.S.A.
E. S. McGee, B.C. Hearn
1983, Open-File Report 83-156
The recently discovered Lake Ellen kimberlite, in northern Michigan, indicates that bedrock sources of diamonds found in glacial deposits in the Great Lakes area could lie within the northern U.S. Magnetic surveys show a main kimberlite 200 m in diameter and an adjacent body 25 x 90 m(?). The kimberlite...
Holocene sedimentation in Richardson Bay, California
Cathy L. Connor
1983, Open-File Report 83-312
Examination of foraminifers, diatoms, ostracodes, clay mineralogy, and sediment-size variation from 9 borehole sites along the salt-marsh margins of Richardson Bay reveals a record of gradual infilling of fine-grained estuarine sediments. Over the past 10,000 years this area was transformed from a V-shaped Pleistocene stream valley to a flat-floored arm...
Floods of April 1983 in southern Mississippi and southeastern Louisiana
Darrell D. Carlson, Gary D. Firda
1983, Open-File Report 83-685
Extreme flooding occurred in April 1983 in southern Mississippi and southeastern Louisiana. The floods resulted from a near-stationary cold front, which moved slowly across Louisiana and Mississippi. Flood heights and discharges of many streams exceeded previously known maximums of record, and for many the recurrence interval of peak discharge exceeded...
Preliminary stage-discharge relations for Tombigbee River at Aliceville lock and dam, near Pickensville, Alabama
G. H. Nelson, C. O. Ming
1983, Open-File Report 83-752
The construction of Aliceville lock and dam and other related channel alterations, completed in 1979, has resulted in changes to the stage-discharge relations in the vicinity. The scarcity of current-meter measurements, coupled with backwater conditions, makes definition of a single stage-discharge relation impossible. However, limit curves can be defined that...
Stratigraphy, structure, and palinspastic synthesis of the western Brooks Range, northwestern Alaska
Charles F. Mayfield, Irvin L. Tailleur, Inyo Ellersieck
1983, Open-File Report 83-779
This report is an effort to describe and decipher the mid-Paleozoic to Lower Cretaceous stratigraphy and the orogenic evolution of the western Brooks Range. The western Brooks Range primarily is composed of stacks of complexly deformed thrust sheets that contain mostly coeval sequences of rocks with slightly different lithologic facies....
Distribution and quantitative assessment of world crude oil reserves and resources
Charles D. Masters, David H. Root, William D. Dietzman
1983, Open-File Report 83-728
World Demonstrated Reserves of crude oil are approximately 723 billion barrels of oil (BBO). Cumulative production is 445 BBO and annual production is 20 BBO. Demonstrated Reserves of crude-oil have declined over the past 10 years consistent with discoveries lagging production over the same period. The assessment of Undiscovered Resources...
Hydrologic data from the Johnson Brook phosphorus loading study, Kennebec County, Maine
Thomas J. Maloney, David R. Dominie, William J. Nichols
1983, Open-File Report 83-143
Streamflow, water quality, and precipitation data collected during the 1980 and 1981 water years are reported. The purpose was to document changes in total phosphorus loads resulting from a change in agricultural waste management practices in the Johnson Brook watershed in Maine. Streamflow data include mean-daily discharges for the period...
Mastritherium (Artiodactyla, Anthracotheriidae) from Wadi Sabya, southwestern Saudi Arabia; an earliest Miocene age for continental rift-valley volcanic deposits of the Red Sea margin
Gary T. Madden, Dwight Lyman Schmidt, Frank C. Whitmore
1983, Open-File Report 83-488
A lower jaw fragment with its last molar (M/3) from the Baid formation in Wadi Sabya, southwestern Saudi Arabia, represents the first recorded occurrence in the Arabian Peninsula of an anthracotheriid artiodactyl (hippo-like, even-toed ungulate). This fossil is identified as a primitive species of Masritherium, a North and East African...
Nonparametric tests for trends in water-quality data using the statistical analysis system
Charles G. Crawford, James R. Slack, Robert M. Hirsch
1983, Open-File Report 83-550
Two nonparametric procedures to test for trends in water-quality data (SEASKEN AND SEASRS) have been developed for the Statistical Analysis System* (SAS). The procedure SEASKEN tests for a monotonic trend in time by a modified form of Kendall's tau, the Seasonal Kendall test. The procedure SEASRS tests for a step...
Analyses of native water, bottom material, elutriate samples, and dredged material from selected southern Louisiana waterways and selected areas in the Gulf of Mexico, 1979-81
Dee L. Lurry
1983, Open-File Report 82-690
The U.S. Geological Survey was requested by the U.S. Army Corps of Engineers, New Orleans District, to provide water-quality data to evaluate environmental effects of dredging activities in selected reaches of the Calcasieu River in southwestern Louisiana. Samples were collected from the upper and lower Calcasieu River between January 1980...
Water-quality characteristics for selected sites on the Cape Fear River, North Carolina, 1955-80: Variability, loads, and trends of selected constituents
J. Kent Crawford
1983, Open-File Report 83-526
Water-quality data for selected sites in the Cape Fear River basin collected by the U.S. Geological Survey, the North Carolina Department of Natural Resources and Community Development and the University of North Carolina at Chapel Hill are analyzed and interpreted in this report. Emphasis is given to the Cape Fear...