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Page 399, results 9951 - 9975

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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...
Geology of the Romanzof Mountains, Brooks Range, northeastern Alaska
Edward G. Sable
1965, Open-File Report 65-141
This remote 700 square mile area in the Brooks Range is topographically rugged and geologically diverse; it contains a granitic pluton, low-grade metamorphic rocks, sedimentary rocks, and mafic igneous rocks, as well as glacial features.Rocks of sedimentary origin include from oldest to youngest:1.Neruokpuk Formation Middle and Upper Devonian(?), more than...
Water resources appraisal of the Anchorage area, Alaska
David A. Sommers, Melvin V. Marcher
1965, Open-File Report 65-151
At the present, water use in the Anchorage area amounts to about 21 mgd (million gallons per day); of this amount ground water accounts for about 10 mgd. By 1980, 60 mgd may be required to meet the demand.The greatest potential problem is overpumping the ground-water reservoir resulting in excessive...
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,...
Ordovician, Silurian, and Devonian biostratigraphy of east-central Alaska
Michael Churkin Jr., Earl E. Brabb
1965, American Association of Petroleum Geologists Bulletin (49) 172-185
A predominantly shale and chert sequence has been mapped from the Canadian border at Latitude 65°00′ N. to the Nation River about 25 miles northwest. It has Ordovician and Silurian graptolites in the lower half, and Middle Devonian corals and Upper Devonian spores in the upper half.The lower half of...
Biota of a late glacial rocky mountain pond
E.G. Kauffman, David S. McCulloch
1965, GSA Bulletin (76) 1203-1232
The sediments of a late glacial sag pond in Huerfano Park, south-central Colorado, have yielded a varied biota consisting of vertebrates, terrestrial and fresh-water mollusks, sponges, and pollen. Wood from the sediments has a radiocarbon age of 9600 ± 200 years. The vertebrate fauna contains the tooth of a prairie...
Alaskan glaciers: Recent observations in respect to the earthquake-advance theory
A.S. Post
1965, Science (148) 366-368
Preliminary aerial photographic studies indicate that the Alaskan earthquake produced some rockfalls but no significant snow and ice avalanches on glaciers. No rapid, short-lived glacier advances (surges) are conclusively associated with this earthquake. Recent evidence fails to support the earthquake-advance theory of Tarr and Martin....
Adsorption equilibria between earth materials and radionuclides, Cape Thompson, Alaska
J.H. Baker, W.A. Beetem, J.S. Wahlberg
1964, Open-File Report 64-5
The concept and the derivation of a distribution coefficient are developed. Ion exchange and the nature of competition among cations are given. Distribution coefficients for carrier-free cesium, strontium, and iodine were determined on 17 samples collected during July, 1961, in the vicinity of Cape Thompson, northwestern Alaska. High percentage uptake...