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Page 5938, results 148426 - 148450

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Tin in the United States, exclusive of Alaska and Hawaii
Pemberton Lewis Killeen, William Louis Newman
1965, Mineral Investigations Resource Map 44
The principal deposits and occurrences of tin minerals in the United States (exclusive of Alaska and Hawaii) are shown on the accompanying map. Although some very minor occurrences are included to indicate the extent of distribution, those in which only trace amounts of tin have been found spectrographically or geochemically...
The Black Canyon of the Gunnison: Today and Yesterday
Wallace R. Hansen
1965, Bulletin 1191
Since the early visit of Captain John William Gunnison in the middle of the last century, the Black Canyon of the Gunnison has stirred mixed apprehension and wonder in the hearts of its viewers. It ranks high among the more awesome gorges of North America. Many great western canyons are as...
Plant and miscellaneous microfossils of the Pierre Shale
Estella B. Leopold, Bernadine D. Tschudy
1965, Open-File Report 65-97
This preliminary report summarizes part of a Survey program to study, in detail, the stratigraphy and paleontology of a nearly complete sequence of Pierre Shale near Redbird, Wyoming. The physical stratigraphy and correlations are being analyzed by James Gill and W. A. Cobban. Various groups of invertebrate fossils are under...
Relation of electrochemical potentials and iron content to ground-water flow patterns
William Back, Ivan Barnes
1965, Professional Paper 498-C
This study was undertaken to develop means of measuring oxidation potentials in aquifer systems and to use the measured values in interpreting the behavior of iron in ground water. Anne Arundel County, Md., was selected as the area of study because of the wide range of concentration of iron-nearly zero...
Variations in chemical character of water in the Englishtown Formation, New Jersey
Paul R. Seaber
1965, Professional Paper 498-B
This investigation describes the variations in the chemical character of the water in the Englishtown Formation of Late Cretaceous age in the Atlantic Coastal Plain of New Jersey, and demonstrates the application of the concept of hydrochemical mapping to the study and evaluation of water-bearing materials. The chemistry of ground water...
Resource understanding: a challenge to aerial methods
Stewart L. Udall
1965, Photogrammetric Engineering (31) 63-75
Aerial survey methods are speeding acquisition of survey data needed to provide and manage the nation's resources. These methods have been applied to topographic mapping for a number of years and the record clearly shows their advantages in terms of cost and speed in contrast to the ground methods that...
Photointerpretation of Alaskan post-earthquake photography
R.J. Hackman
1965, Photogrammetric Engineering (31) 604-610
Aerial photographs taken after the March 27, 1964, Good Friday, Alaskan earthquake were examined stereoscopically to determine effects of the earthquake in areas remote from the towns, highways, and the railroad. The two thousand black and white photographs used in this study were taking in April, after the earthquake,...