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Page 6398, results 159926 - 159950

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Economic evaluation of a marble deposit and a kyanite deposit northeast of Al Lith, southern Hijaz quadrangle, Kingdom of Saudi Arabia - Part I, Marble deposit on Wadi Minsah: Part II, Kyanite deposit near Wadi Ad Arj
David L. Gaskill
1970, Open-File Report 70-133
Nearly pure, white and gray banded calcite marble, 40 to 170 meters thick, crops out in three hogback ridges aggregating about 1200 meters in length, located 155 kilometers southeast of Jiddah. The ridges are aligned along a belt over 2.5 kilometers long. The marble is steeply inclined and folded between...
Analyses of rock and stream-sediment samples from the Sumdum C-4 Quadrangle, Alaska
Allen L. Clark, David A. Brew, Donald A. Grybeck, Raymond Wehr
1970, Open-File Report 70-76
Analytical data for 31 rock and 33 stream-sediment samples from the Sumdum C-4 , 1:63,360 scale quadrangle are presented in this report, together with a statistical treatment of the data. The samples were collected in 1969 as part of the Heavy Metals Program of the U.S. Geological Survey.The most comprehensive...
A proposed streamflow-data program for North Dakota
O.A. Crosby
1970, Open-File Report 70-91
An evaluation of the streamflow data available in North Dakota was made to provide guidelines for planning future programs. The basic steps in the evaluation procedure were (1) definition of the long-term goals of the streamflow data program in quantitative form, (2) examination and analysis of all available data to...
Analyses of rock and stream-sediment samples from the Craig C-6 Quadrangle, Alaska
Allen L. Clark, Henry C. Berg, Donald A. Grybeck, A. Thomas Ovenshine, Raymond Wehr
1970, Open-File Report 70-70
Analytical data for 26 rock and 8 stream-sediment samples from the Craig C-6, 1:63,360-scale quadrangle are presented in this report, together with a statistical treatment of the data. The samples were collected in 1969 as part of the Heavy Metals Program of the U.S. Geological Survey.The most comprehensive discussion of...
Summary of floods in the United States during 1964
J.O. Rostvedt
1970, Water Supply Paper 1840-C
This report describes the most outstanding floods in the United States during 1984. The four most damaging floods during the year were in December in the Far Western States, in March along the Ohio River, in September in central and northern Florida and southern Georgia, and in June in northwestern...
Geologic studies of Yellowstone National Park imagery using an electronic image enhancement system
Harry Wynn Smedes
1970, Open-File Report 70-306
This report describes the image enhancement system developed by the Philco-Ford Corporation; the kinds of enhancement attained; the results obtained from various kinds of remote-sensing imagery (mainly black and white multiband, color, color infrared, thermal infrared, and side-looking K-band radar) of parts of Yellowstone National Park; and possible additional fields...
Digital computer terrain mapping from multispectral data, and evaluation of proposed Earth Resources Technology Satellite (ERTS) data channels, Yellowstone National Park preliminary report
Harry Wynn Smedes, K. L. Pierce, Marc G. Tanguay, R.M. Hoffer
1970, Open-File Report 70-307
Digital computer processing of 12 wavelength bands of visible and reflective infrared scanner data has resulted in successful automatic computer mapping of eight terrain units in a Yellowstone National Park test site. Target areas in the scene were selected for training the computer. Statistical parameters of radiance such as mean,...