Search Results - "Naeser, C. W"

Age constraints on Jerritt Canyon and other carlin-type gold deposits in the Western United States; relationship to mid-Tertiary extension and magmatism by Hofstra, A. H, Snee, L. W, Rye, R. O, Folger, H. W, Phinisey, J. D, Loranger, R. J, Dahl, A. R, Naeser, C. W, Stein, H. J, Lewchuk, M. T

“…Carlin-type gold deposits are difficult to date and a wide range of ages has been reported for individual deposits. Therefore, several methods were employed to…”
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Fission-track dating of granitic rocks from the Eastern Cordillera of Peru; evidence for Late Jurassic and Cenozoic cooling by Laubacher, G, Naeser, C. W

“…Apatite and zircon fission-track ages of three samples of the Huachon granite and one of the Quiparacra granite, from the Eastern Cordillera of the Andes, have…”
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Etching Fission Tracks in Zircons by Naeser, C. W.

“…A new technique has been developed whereby fission tracks can be etched in zircon with a solution of sodium hydroxide at 220° C. Etching time varied between 15…”
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FORMATION OF A PALEOTHERMAL ANOMALY AND DISSEMINATED GOLD DEPOSITS ASSOCIATED WITH THE BINGHAM CANYON PORPHYRY Cu-Au-Mo SYSTEM, UTAH--A REPLY by Cunningham, C. G., Austin, G. W., Naeser, C. W., Rye, R. O., Ballantyne, G. H., Stamm, R. G., Barker, C. E.

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U-Pb isotope systematics and age of uranium mineralization, Midnite Mine, Washington by Ludwig, Kenneth R, Nash, J. T, Naeser, C. W

“…Uranium ores at the Midnite mine, near Spokane, Washington, occur in phyllites and calcsilicates of the Proterozoic Togo Formation, near the margins of an…”
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Pliocene intrusive rocks and mineralization near Rico, Colorado by Naeser, C. W, Cunningham, C. G, Marvin, R. F, Obradovich, J. D

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Fission-track dating of pumice from the KBS Tuff, East Rudolf, Kenya by Hurford, Anthony J, Gleadow, A. J. W, Naeser, C. W

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Fission-track ages of zircon from Jamaican bauxite and Terra Rossa by Comer, J. B, Naeser, C. W, McDowell, F. W

“…Fission-track ages indicate that zircon in Jamaican bauxite and terra rossa comes from multiple sources ranging in age from Late Cretaceous to late Miocene…”
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Multiple ages of mid-Tertiary mineralization and alteration in the western San Juan Mountains, Colorado by Lipman, P. W, Fisher, F. S, Mehnert, H. H, Naeser, C. W, Luedke, R. G, Steven, T. A

“…Ore deposits in the western San Juan Mountains formed intermittently in middle to late Tertiary time, from about 30 to 10 m.y. ago, during essentially the same…”
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Geochronology of hydrothermal uranium deposits and associated igneous rocks in the eastern source area of the Mount Belknap Volcanics, Marysvale, Utah by Cunningham, C. G, Ludwig, K. R, Naeser, C. W, Weiland, E. K, Mehnert, H. H, Steven, T. A, Rasmussen, J. D

“…Radiometric ages of igneous rocks and hydrothermal uranium-fluorine veins in the eastern source area of the Mount Belknap Volcanics near Marysvale, Utah, show…”
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Search for Plutonium-244 Tracks in Mountain Pass Bastnaesite by FLEISCHER, R. L, NAESER, C. W

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Fossil Particle Tracks and Uranium Distributions in Minerals of the Vaca Muerta Meteorite by Fleischer, R. L., Naeser, C. W., Price, P. B., Walker, R. M., Marvin, Ursula B.

“…Fossil tracks of charged particles have been observed in minerals separated from the Vaca Muerta mesosiderite. Irradiation of samples of the meteorite with…”
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Late Cenozoic Paleomagnetism and Chronology of Andean Basins of Bolivia: Evidence for Possible Oroclinal Bending by MacFadden, Bruce J., Anaya, Federico, Perez, Heberto, Naeser, C. W., Zeitler, P. K., Campbell, K. E.

“…New paleomagnetic and radioisotopic data are reported from two late Tertiary high-elevation, non-marine basins in the eastern Cordillera of Bolivia. (1)…”
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Hydrothermal alteration and mass exchange in the hornblende latite porphyry, Rico, Colorado by LARSON, Peter B, CUNNINGHAM, Charles G, NAESER, Charles W

“…The Rico paleothermal anomaly in southwestern Colorado records the effects of a large hydrothermal system that was active four million years ago. A 65 million…”
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Large-scale alteration effects in the Rico paleothermal anomaly, Southwest Colorado by Larson, Peter B, Cunningham, Charles G, Naeser, Charles W

“…A major 4 Ma palcothermal anomaly is present around the Silver Creek stockwork Mo deposit near Rico, southwestern Colorado. The anomaly extends at least 8 km…”
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Formation of a paleothermal anomaly and disseminated gold deposits associated with the Bingham Canyon porphyry Cu-Au-Mo system, Utah by Cunningham, Charles G, Austin, Gerry W, Naeser, Charles W, Rye, Robert O, Ballantyne, Geoffrey H, Stamm, Robert G, Barker, Charles E

“…The thermal history of the Oquirrh Mountains, Utah, indicates that hydrothermal fluids associated with emplacement of the 37 Ma Bingham Canyon porphyry…”
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New geochronologic and palaeomagnetic data for the hominid-bearing Hadar Formation of Ethiopia by Aronson, J. L, Schmitt, T. J, Walter, R. C, Taieb, M, Tiercelin, J. J, Johanson, D. C, Naeser, C. W, Nairn, A. E. M

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Geochronology of Type Santacrucian (Middle Tertiary) Land Mammal Age, Patagonia, Argentina by Marshall, Larry G., Drake, Robert E., Curtis, Garniss H., Butler, Robert F., Flanagan, Kathy M., Naeser, Charles W.

“…Mammal-bearing lacustrine and tuffaceous sediments from three localities of the Santa Cruz Formation, type fauna of the Santacrucian Land Mammal Age, in…”
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Fission-track dating of pumice from the KBS Tuff, East Rudolf, Kenya (reply) by NAESER, C. W, URFORD, A. J, GLEADOW, A. O. W

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Confirmation of a Late Oligocene-Early Miocene Age of the Deseadan Salla Beds of Bolivia by Naeser, Charles W., McKee, Edwin H., Johnson, Noye M., MacFadden, Bruce J.

“…Three new fission-track (zircon) and four new K-Ar (biotite) dates corroborate a late Oligocene-early Miocene age (22-28 Ma) for the Salla Beds of Bolivia…”
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