- About
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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
Search results
Showing 251 to 260 of 2545 (0.028 seconds)| 251 |
Sedimentology of Estero Marua, Sonora, MexicoSandusky, Clinton LeRoy, 1942- January 1969 (has links)
No description available.
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| 252 |
Mobility of Gambel's quail (Lophortyx gambeli gambeli) in a desert-grassland--oak-woodland area in southeastern ArizonaGreenwalt, Lynn Adams, 1931- January 1955 (has links)
No description available.
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| 253 |
Geology, mineralization, and alteration of the Jhus Canyon area, Cochise County, ArizonaChakarun, John Douglas, 1945- January 1973 (has links)
The Jhus Canyon area, located on the northeastern flank of the Chiricahua Mountains, Cochise County, Arizona, contains rock units from Precambrian to Mid-Tertiary in age. Precambrian granite, Paleozoic and Early Cretaceous sedimentary rocks, and Late Cretaceous(?) andesitic lava flows have been intruded by a complex Mid-Tertiary stock. The youngest rocks present are Mid-to-Late Tertiary rhyolite dikes. The effects of hydrothermal alteration are conspicuous both within and adjacent to the stock. The igneous rocks of the stock display propylitic, argillic, and phyllic alteration. Sedimentary hosts were altered to skarn, hornfels, and marble. Silicification is prominent in both the igneous and sedimentary rock types. Pyrite is the most abundant sulfide mineral in the area, but minor amounts of chalcopyrite and molybdenite are also present. The existing level of erosion is believed to expose the most intense and extensive alteration and mineralization that developed. No ore deposit is thought to exist here, but molybdenum values from rock chip samples suggest that the southwestern lobe of the stock is worthy of closer examination, especially for skarn occurrences. Mineralization in the nearby Hilltop Mine area is not related to the Jhus Canyon Stock, and its ore potential must be evaluated independently.
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| 254 |
A comparison of the Shinarump conglomerate on Hoskinnini Mesa with that in other selected areas in Arizona and UtahEvensen, Charles Gerlard, 1927- January 1953 (has links)
No description available.
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| 255 |
The relationship between the seismicity and late cenozoic tectonics in ArizonaMokhtar, Talal Ali January 1979 (has links)
No description available.
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| 256 |
The structure of a portion of the southern California Batholith, Western Riverside County, CaliforniaJenney, William Willis January 1968 (has links)
No description available.
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| 257 |
Geology of the Montosa-Cottonwood Canyons area, Santa Cruz County, ArizonaAnthony, John W. (John Williams), 1920- January 1951 (has links)
No description available.
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| 258 |
Structure and stratigraphy of the Helmet Peak area, Pima County, ArizonaStudebaker, Irving Glen, 1931- January 1959 (has links)
No description available.
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| 259 |
Modelling the development of the retinogeniculate pathwayEglen, Stephen January 1997 (has links)
No description available.
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| 260 |
Old Worlds and New Worlds : Renaissance voyages of discoveryJowitt, Claire Elaine January 1995 (has links)
No description available.
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