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The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse more than 5,500 book chapters authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.
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Photogrammetry and altimetry: Part B: photogrammetry using Apollo 16 orbital photography Photogrammetry and altimetry: Part B: photogrammetry using Apollo 16 orbital photography
The Apollo 15 and 16 metric and panoramic cameras have provided photographs for accurate topographic portrayal of the lunar surface using photogrammetric methods. In turn, quantitative morphologic analyses of topographic results are invaluable aids in the interpretation of the geologic processes.
Authors
Sherman S.C. Wu, Francis J. Schafer, Raymond Jordan, Gary M. Nakata
Photogrammetry and altimetry: Part C: frequency distributions of lunar slopes Photogrammetry and altimetry: Part C: frequency distributions of lunar slopes
The metric and panoramic cameras aboard the Apollo 16 spacecraft provided photographs on which photogrammetric techniques may be used to obtain precise measurements of horizontal distances and elevations. These measurements of horizontal distances and elevations. These measurements may in turn be used to obtain slope-frequency distributions of lunar surfaces at various slope lengths and...
Authors
Sherman S.C. Wu, H. J. Moore
Preliminary examination of lunar samples: Part A: a petrographic and chemical description of samples from the lunar highlands Preliminary examination of lunar samples: Part A: a petrographic and chemical description of samples from the lunar highlands
More than four-fifths of the surface of the Moon consists of a profoundly cratered irregular surface designated terra or highlands by analogy with the terrestrial continents. These terra regions have much higher albedos than the physiographically lower and much smoother mare regions. The difference in albedo can now be ascribed to a fundamental difference in the chemical and...
Authors
Preliminary geologic investigation of the Apollo 15 landing site Preliminary geologic investigation of the Apollo 15 landing site
The Apollo 15 lunar module (LM) landed at longitude 03°39'20'' E, latitude 26°26'00'' N on the mare surface of Palus Putredinis on the eastern edge of the Imbrium Basin. The site is between the Apennine Mountain front and Hadley Rille. The objectives of the mission, in order of decreasing priority, were description and sampling of three major geologic features—the Apennine Front, Hadley...
Authors
G.A. Swann, N. G. Bailey, R. M. Batson, V. L. Freeman, M. H. Hait, J.W. Head, H. E. Holt, K. A. Howard, J.B. Irwin, K.B. Larson, W.R. Muehlberger, V. S. Reed, J. J. Rennilson, G. G. Schaber, D.R. Scott, L. T. Silver, R. L. Sutton, G. E. Ulrich, H. G. Wilshire, E.W. Wolfe
Preliminary geologic investigation of the Apollo 16 landing site Preliminary geologic investigation of the Apollo 16 landing site
The Apollo 16 landing site in the lunar central highlands encompassed terra plains and adjacent mountainous areas of hilly and furrowed terra. These morphologic units, representing important terrane types in the lunar highlands, had been interpreted as volcanic on most premission geologic maps. However, it became apparent during the mission that there are indeed few or no volcanic rocks...
Authors
W.R. Muehlberger, R. M. Batson, E. L. Boudette, C.M. Duke, R. E. Eggleton, D. P. Elston, A. W. England, V. L. Freeman, M. H. Hait, T.A. Hall, J.W. Head, C. A. Hodges, H. E. Holt, E.D. Jackson, J.A. Jordan, K.B. Larson, D.J. Milton, V. S. Reed, J. J. Rennilson, G. G. Schaber, J.P. Schafer, L. T. Silver, D. Stuart-Alexander, R. L. Sutton, G.A. Swann, R.L. Tyner, G. E. Ulrich, H. G. Wilshire, E.W. Wolfe, J.W. Young
Summary of research upon the yuma clapper rail and the masked bobwhite quail Summary of research upon the yuma clapper rail and the masked bobwhite quail
No abstract available.
Authors
R. E. Tomlinson
The effects of certain pesticides on wildlife The effects of certain pesticides on wildlife
No abstract available.
Authors
J. R. Longcore
Why the Mayan cities of the Peten District, Guatemala, were abandoned Why the Mayan cities of the Peten District, Guatemala, were abandoned
No abstract available.
Authors
Charles Wythe Cooke
Primary structures in dune sand and their significance Primary structures in dune sand and their significance
No abstract available.
Authors
Edwin D. McKee
Ground-water provinces of Libyan Arab Republic Ground-water provinces of Libyan Arab Republic
No abstract available.
Authors
J.R. Jones
Geology of the Shati Valley Area iron deposit; Fezzan, Libyan Arab Republic Geology of the Shati Valley Area iron deposit; Fezzan, Libyan Arab Republic
No abstract available.
Authors
G.H. Goudarzi
Minor elements in water Minor elements in water
A complete characterization of natural waters includes a determination of the concentrations of 30 or more minor elements. Emission spectrochemical methods are uniquely suited to the determination of a comparatively large number of minor elements, mainly those classified as heavy metals. Spectro-chemical data published by Braidech and Emory in 1935 and more recent data by Durfor and...
Authors
Marvin W. Skougstad