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Page 157, results 3901 - 3925

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Veins of hypogene manganese oxide minerals in the southwestern United States
D. F. Hewett
1964, Economic Geology (59) 1429-1472
Characteristic minerals are psilomelane, hollandite, cryptomelane, and coronadite, more rarely ramsdellite and pyrolusite. Host rocks are Mn-deficient; 80 percent of examples are middle to late Tertiary layered volcanics. Though deposits are shallow, mostly mined to only 100-200 feet (maximum 500 feet), a hypogene origin is...
Deep geothermal brine near Salton Sea, California
Donald E. White
1964, Bulletin Volcanologique (27) 369-370
A well drilled for geothermal power near Salton Sea in Imperial Valley, Calif., is 5,232 feet deep; it is the deepest well in the world (1962) in a high-temperature hot spring area. In the lower half of the hole temperatures are too high to measure with available equipment, but are...
Age and growth of the round whitefish in Lake Michigan
Donald Mraz
1964, Transactions of the American Fisheries Society (93) 46-52
The round whitefish, though rarely abundant, is widely distributed in northern waters. It is one of the least studied of the coregonines; the present report is but the second for Great Lakes waters. Commercial production in Lake Michigan has been tightly confined to the northern portion. The period 1924-30 showed...
Hydrology of the Babylon-Islip area, Suffolk County, Long Island, New York
Edward J. Pluhowski, Irwin H. Kantrowitz
1964, Water Supply Paper 1768
The report area comprises 270 square miles, and includes most of the Towns of Babylon and Islip, and parts of the Towns of Huntington, Smithtown, and Brookhaven, in southwestern Suffolk County, New York. Almost all the water used in the area is obtained from wells screened in permeable zones of...
Geology and ground-water conditions of Clark County, Washington, with a description of a major alluvial aquifer along the Columbia River
Maurice John Mundorff
1964, Water Supply Paper 1600
This report presents the results of an investigation of the ground-water resources of the populated parts of Clark County. Yields adequate for irrigation can be obtained from wells inmost farmed areas in Clark County, Wash. The total available supply is sufficient for all foreseeable irrigation developments. In a few local...
A survey of fungi associated with lesioned and chlorotic sago pondweed (Potamogeton pectinatus)
R.D. Lumsden, D.E. Ellis, J.L. Sincock
1963, Plant Disease Reporter (47) 689-693
Isolations from 1000 Potamogeton pectinatus plants collected from six major stands in Back Bay, Virginia and 13 in Currituck Sound, North Carolina yielded Pythium spp. consistently and in relatively high frequency. Although specific determination of these isolates was unsuccessful, they were separated into three groups according to morphological and cultural...
Placer tin deposits in central Alaska
Robert Mills Chapman, Robert Roy Coats, Thomas G. Payne
1963, Open-File Report 63-15
Placer tin, in the form of cassiterite (Sn02) and (or) tinstone (fragments including cassiterite and some vein or rock material), is known or reported in deposits that have been prospected or mined for placer gold in four areas adjacent to the Yukon River in central Alaska, 120 to 240 miles...
Geothermal brine well: Mile-deep drill hole may tap ore-bearing magmatic water and rocks Undergoing Metamorphism
D. E. White, E.T. Anderson, D.K. Grubbs
1963, Science (139) 919-922
A deep geothermal well in California has tapped a very saline brine extraordinarily high in heavy metals and other rare elements; copper and silver are precipitated during brine production. Preliminary evidence suggests that the brine may be pure magmatic water and an active ore-forming solution. Metamorphism of relatively young rocks...
Magnesite and brucite in the United States, exclusive of Alaska and Hawaii
Benjamin Gildersleeve
1962, Mineral Investigations Resource Map 27
The important deposits of magnesite (MgCO3) and brucite (MgO.H2O) in the United States (exclusive of Alaska and Hawaii) are shown on the accompanying map. Single deposits and groups of deposits are shown by geometric symbols according to four size categories based on estimated production plus reserves. These categories are: less...
Thorium and rare earths in the United States, exclusive of Alaska and Hawaii
J.C. Olson, J. W. Adams
1962, Mineral Investigations Resource Map 28
The accompanying map shows the location of the principal deposits of thorium and rare-earth minerals in the United States (excluding Alaska and Hawaii). Symbols of different shapes are used to depict deposits of different geologic types, and sizes of symbols denote the relative importance of the deposits. Because of scale...
Salinity and hydrology of closed lakes
Walter Basil Langbein
1961, Professional Paper 412
Lakes without outlets, called closed lakes, are exclusively features of the arid and semiarid zones where annual evaporation exceeds rainfall. The number of closed lakes increases with aridity, so there are relatively few perennial closed lakes, but "dry" lakes that rarely contain water are numerous.Closed lakes fluctuate in level to...
Floods of February-March 1961 in the southeastern states
Harry Hawthorne Barnes, William Philip Somers
1961, Circular 452
Widespread, prolonged, disastrous floods struck parts of Louisiana, Mississippi, Alabama, Georgia, and Florida following heavy rains Feb. 17-26, 1961. Three distinct low-pressure systems recurred in essentially the same area. Precipitation totaled more than 18 inches in some areas. Multiple floods of small streams became superimposed in the large rivers to...
Is the Tinaquillo, Venezuela, "Pseudogabbro" metamorphic or magmatic?
T. P. Thayer, C. Brown
1961, Geological Society of America Bulletin (72) 1565-1569
The "pseudogabbro" associated with peridotite at Tinaquillo, Venezuela, is believed to be of magmatic rather than metamorphic origin principally because: (1) there are major mineralogic and compositional differences between the "pseudogabbro" and the most highly metamorphosed country rock; (2) rocks intermediate in compositional between peridotite and "pseudogabbro" are...
Geology and fluorspar deposits, Northgate district, Colorado
Thomas A. Steven
1960, Bulletin 1082-F
The fluorspar deposits in the Northgate district, Jackson County, Colo., are among the largest in Western United States. The mines were operated intermittently during the 1920's and again during World War II, but production during these early periods of operation was not large. Mining was begun on a larger scale...
Water management, agriculture, and ground-water supplies
Raymond L. Nace
1960, Circular 415
Encyclopedic data on world geography strikingly illustrate the drastic inequity in the distribution of the world's water supply. About 97 percent of the total volume of water is in the world's oceans. The area of continents and islands not under icecaps, glaciers, lakes, and inland seas is about 57.5 million...
Zones and zonal variations in welded ash flows
R. L. Smith
1960, Professional Paper 354-F
Welded tuffs are recognized as special parts of ash flows, other pyroclastic flows, or, more rarely, air-fall deposits. Ash flows may be emplaced at any temperature below a maximum eruption temperature. Those emplaced above a minimum welding temperature may show any and all degrees of welding and crystallization. ...
Radioactive rare-earth deposit at Scrub Oaks mine, Morris County, New Jersey
Harry Klemic, A.V. Heyl Jr., Audrey R. Taylor, Jerome Stone
1959, Bulletin 1082-B
A deposit of rare-earth minerals in the Scrub Oaks iron mine, Morris County, N. J., was mapped and sampled in 1955. The rare-earth minerals are mainly in coarse-grained magnetite ore and in pegmatite adjacent to it. Discrete bodies of rare-earth-bearing magnetite ore apparently follow the plunge of the main magnetite...
Geology of the State of Morelos and contiguous areas in south-central Mexico
Carl F. Fries
1959, Open-File Report 59-41
The area described lies in south-central Mexico and embraces all but the southeastern corner and easternmost border of the State of Moreles, the second smallest State in the Mexican Republic. It includes small contiguous parts of the State of Mexico, in the northeastern corner, and of the State of Guerrero...