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Publication Extents

Not all publications have extents, not all extents are completely accurate
Quantitative comparison of some aesthetic factors among rivers
Luna Bergere Leopold
1969, Circular 620
It is difficult to evaluate the factors contributing to aesthetic or nonmonetary aspects of a landscape. In contrast, aspects which lend themselves to cost-benefit comparisons are now treated in a routine way. As a result, nonmonetary values are described either in emotion-loaded words or else are mentioned and thence forgotten.The...
Gold Veins near Great Falls, Maryland
John Calvin Reed Jr., John C. Reed
1969, Bulletin 1286
Small deposits of native gold are present along an anastomosing system of quartz veins and shear zones just east of Great Falls, Montgomery County, Md. The deposits were discovered in 1861 and were worked sporadically until 1951, yielding more than 5,000 ounces of gold. The vein system and the principal veins...
Results of geological and geochemical investigations in an area northwest of the Chulitna River, central Alaska Range
C. C. Hawley, A. L. Clark, M.A. Herdrick, S. H. B. Clark
1969, Circular 617
Sedimentary and volcanic rock units of Paleozoic and Mesozoic age, faults, and elongate bodies of intrusive rock, particularly serpentinites, have a dominant northeasterly trend in an area northwest of the Chulitna River between Eldridge Glacier and Bull River. The serpentinites locally contain abnormal (as much as 0.5 percent) concentrations of...
Water resources of the Buffalo River Watershed, West-central Minnesota
Robert W. Maclay, L. E. Bidwell, Thomas C. Winter
1969, Hydrologic Atlas 307
The Buffalo River watershed includes two general physiographic areas – a glacial lake plain and an glacial moraine. The lake plain, which was formed by Glacial lake Agassiz more than 9,000 years ago, is extremely flat – sloping only a few feet per mile westward near the Red River of the...
Revision of some of Girty's invertebrate fossils from the Fayetteville Shale (Mississippian) of Arkansas and Oklahoma
Mackenzie Gordon Jr., William J. Sando, John Pojeta Jr., Ellis L. Yochelson, I. G. Sohn
1969, Professional Paper 606
J.n 1910, G. H. Girty published a paper on the fauna of the Fayetteville Shale of northern Arkansas and northeastern Oklahoma in which he described 110 new taxa of fossil invertebrates. He did not, however, designate any type specimens or divulge the localities at which •the fossils were collected, nor...
Reconnaissance of the Red Lake River, Minnesota
Lev Ropes, Richmond F. Brown, D.E. Wheat
1969, Hydrologic Atlas 299
This report is intended to serve a wide range of people including educators, scientists, planners, and those who wish to enjoy travel on the river. the data-summary charts, graphs, and tables are intended to be specific enough so that users who require precise information need not resynthesise the original numerical...
Gold in minerals and the composition of native gold
Robert Sprague Jones, Michael Fleischer
1969, Circular 612
Gold occurs in nature mainly as the metal and as various alloys. It forms complete series of solid solutions with silver, copper, nickel, palladium, and platinum. In association with the platinum metals, gold occurs as free gold as well as in solid solution. The native elements contain the most gold,...