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Page 5748, results 143676 - 143700

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Effects of urban development on floods in northern Virginia
Daniel G. Anderson
1970, Water Supply Paper 2001-C
Graphical and mathematical relations are presented to estimate the flood-peak magnitudes having recurrence intervals ranging up to 100 years for drainage basins with various degrees of urban or suburban development. Five independent variables are required for use of the relations. They are the size, length, and slope of the basin,...
Paleozoic and Precambrian rocks of Alaska and their role in its structural evolution
Michael Churkin Jr.
1970, Open-File Report 70-64
Acknowledging that there are large gaps in the knowledge of the geology of Alaska, the following threefold subdivision of Alaska into Paleozoic tectonic elements is proposed: Southern Alaska--the Alaska Range and farther south--is the northern end of the Paleozoic Cordilleran geosyncline that rims the eastern Pacific. Northern Alaska--the northeastern Brooks...
Report on field trip to Wadi Bidah and Ablah areas, Saudi Arabia
Louis Gonzalez
1970, Open-File Report 70-138
The Mulgatah ancient workings were briefly examined and two samples of alluvium were taken from the wadi that drains these workings. In Wadi Bidah, near gossan outcrops at the Rabathan prospects, another wadi sample was taken. In the Abla Formation area, seven wadi samples were taken and these samples as...
Geology and mineral evaluation of the Wadi Bidah district, southern Hijaz quadrangle, Kingdom of Saudi Arabia
Robert L. Earhart, Mustafa M. Mawad
1970, Open-File Report 70-116
The Wadi Bidah district in southwest Saudi Arabia contains several ancient mines and mineral-prospects. The Precambian rocks of the district are steeply dipping and highly folded and faulted. They are divided into three major units: (1) older metavolcanic rocks, (2) metasedimentary rocks, and (3) younger metavolcanic rocks. Massive sulfide-type deposits...
A proposed streamflow data program for South Carolina
Jeffrey T. Armbruster
1970, Open-File Report 70-11
An evaluation of the available streamflow data in South Carolina was made to provide guidelines for planning future surface-water data programs. The basic elements in the evaluation procedure were (1) establishment of objectives and goals of the program, (2) examination and analysis of all available data to determine which goals...
A proposed streamflow-data program in Alaska
J.M. Childers
1970, Open-File Report 70-62
The streamflow-data program in Alaska was analyzed to design a better data network. The analysis included (1) definition of the goals of the streamflow-data program, (2) evaluation of the available data to see which goals have already been achieved, and (3) consideration and recommendation of future programs to achieve the...
Geologic log and chemical data, diamond drill hole 1, Samrah, Kingdom of Saudi Arabia
P. K. Theobald Jr., Charles E. Thompson, Henry D. Horn
1970, Open-File Report 70-324
Diamond drill hole number 1 at the Samrah ancient mine, Kingdom of Saudi Arabia penetrated a series of mineralized fractures. Lead, zinc, and silver are the principal ore metals and galena and sphalerito are the ore minerals identified to date. Throughout the core there is a somewhat better correlation of...
Mineral resources of the southern half of Zone III Santander, Norte de Santander and Boyaca, Colombia
Dwight Edward Ward, Richard Goldsmith, Bruna B. Cruz, Jaime Restrepo, A. Hernan
1970, Open-File Report 70-359
The areas covered by this report lies in the eastern Cordillera of the Colombian Andes in the region around Bucaramanga. This part of the eastern Cordillera consists of a structurally complex core of metamorphic and igneous rocks of Precambrian to Mesozoic age, flanked to east and west by faulted and...
A proposed streamflow data program for Michigan
P.C. Bent
1970, Open-File Report 70-25
An evaluation of the streamflow data available in Michigan was made to provide guidelines for planning future water resource 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...
Effects of the earthquake of March 27, 1964, on the Alaska Railroad
David S. McCulloch, Manuel G. Bonilla
1970, Professional Paper 545-D
In the 1964 Alaska earthquake, the federally owned Alaska Railroad sustained damage of more than $35 million: 54 percent of the cost for port facilities; 25 percent, roadbed and track; 9 percent, buildings and utilities; 7 percent, bridges and culverts; and 5 percent, landslide removal. Principal causes of damage were:...