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Page 6209, results 155201 - 155225

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Not all publications have extents, not all extents are completely accurate
Sequence of alluviation along the Loup rivers, Valley County area, Nebraska
Robert D. Miller, Glenn R. Scott
1955, GSA Bulletin (66) 1431-1448
Alluviation along the North and Middle Loup rivers in Valley County, Nebraska, produced a series of alluvial silt beds on which are developed five interstadial soils of Brady (?), Cary and Mankato (?), Mankato (?), early Recent and late Recent age. No deposits of Illinoian age were found and in...
The lead-zinc veins of the chilete mining district in northern Peru
F.S. Simmons
1955, Economic Geology (50) 399-419
Lead-zinc-silver veins in the Chilete mining district in the Department of Cajamarca in northern Peru have been worked sporadically since the 17th century, but the greatest activity dates only from 1951. The ore deposits are in a thick section of andesitic volcanic rocks that overlie with marked unconformity a sequence...
Water-resources program of the Geological Survey in the Midwestern States
C. G. Paulsen
1955, Open-File Report 55-137
The program of basic water-resources investigations by the U.S Geological Survey in the Midwestern states is a highly coordinated undertaking. It represents a partnership among Federal, State, and participial agencies that has developed during the past 60 years from the mutual desire to obtain and maintain optimum knowledge of out...
Zones of regional metamorphism in the Precambrian of northern Michigan
Harold L. James
1955, GSA Bulletin (66) 1455-1488
Precambrian rocks are exposed throughout an area of about 7500 square miles in northern Michigan. Of this area, approximately 3300 square miles is underlain by relatively unmetamorphosed Upper Precambrian (Keweenawan), about 2700 square miles by metamorphosed Middle Precambrian (Huronian), and about 1500 square miles by metamorphosed Lower Precambrian (“Archean”). Flat-lying...
Violent mud-volcano eruption of lake city hot springs, northeastern California
Donald E. White
1955, GSA Bulletin (66) 1109-1130
During the night of March 1 and 2, 1951, an inconspicuous group of hot springs and small mud volcanoes in northeastern California burst into spectacular eruption, unequalled by other known mud volcanoes. The eruption cloud of steam, gases, and mud particles rose several thousand feet in the air and distributed...
The occurrence of hepatozoon in the gray squirrel (Sciurus carolinensis)
C. M. Herman, D.L. Price
1955, Journal of Protozoology (2) 48-51
Hepatozoon sciuri (Coles, 1914) is reported from gray squirrels (Sciurus carolinensis) in Washington, D.C. and Maryland. Blood smears stained with Giemsa's stain revealed a parasitemia in 16 to 71% of the squirrels examined. A technique for laking the red cells and concentrating the white cells in blood samples demonstrated this protozoon...
A gold-scheelite-cinnabar placer in Humboldt County, Nevada
Charles Ronald Willden, Preston Enslow Hotz
1955, Economic Geology (50) 661-668
Gold, scheelite, and cinnabar in amounts that might be profitably extracted are found in a placer deposit in the Dutch Flat mining district in north-central Nevada. These materials are the products of at least two and possibly three stages of metallogenic activity recorded in the...
Relation of uranium to hypogene mineral zoning in the Front Range mineral belt, Colorado
Stewart Raynor Wallace, B. F. Leonard, R. H. Campbell
1955, Trace Elements Investigations 357
Many of the mining districts of the Colorado Front Range mineral belt contain mesothermal sulfide ores that exhibit a zonal distribution. Present data indicate that in most of the zoned districts pitchblende and/or secondary uranium minerals are most abundant in a transition zone between central areas containing predominantly pyritic gold...
Carnotite resources of San Miguel bench, Montrose County, Colorado
Donald Clayton Alvord
1955, Trace Elements Investigations 289
San Miguel bench includes about 4 square miles in the southern part of T. 48 N., R. 17 W., New Mexico principal meridian, Montrose County, Colorado. Production of carnotite ore from the area has been about 15,000 short tons having an estimated average grade of 0.31 percent U3O8 and 1.6 percent...
The opossum
U.S. Fish and Wildlife Service
1955, Wildlife Leaflet 359
No abstract available....
The relation between composition and swelling in clays
Margaret D. Foster
1955, Open-File Report 54-91
The phenomenon of swelling is associated with the hydration of clays; however, all clays do not swell when hydrated. those of the kaolin group, for example, exhibit little or no swelling on hydration. Sodiwm montmoillonite, on the other hand, characteristically swells in water to many times its dry volume. Calcium...
Geology of the Huron River pitchblende occurrence, Baraga County, Michigan
R.C. Vickers
1955, Trace Elements Investigations 303
Small quantities of uranium-bearing minerals were discovered by a geologist of the Jones and Laughlin Ore Company during the summer of 1949 along the East Branch of the Huron River, sec. 1, T. 51 N., R. 30 W., Baraga County, Mich. Subsequent diamond drilling of the prospect by the Jones...
Uranium deposits at the Jomac mine, White Canyon area, San Juan County, Utah
A.F. Trites, G.A. Hadd
1955, Trace Elements Investigations 561
The Jomac mine is in the White Canyon area. San Juan County, Utah, about 13 miles northeast of the town of White Canyon, Utah. The mine is owned by the Ellihill Mining Company, White Canyon, Utah. Mine workings consist pf two adits connected by a crosscut. Two hundred feet of...