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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
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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.
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Showing 81 to 90 of 92 (0.024 seconds)Spelling suggestions: "subject:"cochise county"" "subject:"cochise bounty""
| 81 |
The history of the lower San Pedro Valley in ArizonaMuffley, Bernard William, 1909- January 1938 (has links)
No description available.
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| 82 |
Longitudinal profiles of ephemeral streams in southeastern ArizonaCherkauer, Douglas S. January 1969 (has links)
No description available.
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| 83 |
Origin and stratigraphic relations of cambrian quartzites in southeast ArizonaBryant, Jeffrey Wayne, 1949- January 1978 (has links)
No description available.
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| 84 |
Fusulinids and conodonts of a Pennsylvanian-Permian section in the northern Dragoon Mountains, Cochise County, ArizonaMicklin, Richard Francis, 1945-, Micklin, Richard Francis, 1945- January 1969 (has links)
No description available.
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| 85 |
Late cenozoic sediments in the San Pedro Valley near St. David, ArizonaGray, Robert Stephen, 1934-, Gray, Robert Stephen, 1934- January 1965 (has links)
No description available.
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| 86 |
The geology and genesis of jasperoid in the northern Swisshelm Mountains, Cochise County, ArizonaMcAlaster, Penelope, McAlaster, Penelope January 1980 (has links)
No description available.
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| 87 |
Modeling of Ground-Water Flow and Surface/Ground-Water Interaction for the San Pedro River Basin Part I Mexican Border to Fairbank, ArizonaVionnet, Leticia Beatriz, Maddock, Thomas January 1992 (has links)
Many hydrologic basins in the southwest have seen their perennial streamflows
turn to ephemeral, their riparian communities disappear or be jeopardized, and their
aquifers suffer from severe overdrafts. Under -management of ground -water exploitation
and of conjunctive use of surface and ground waters are the main reasons for these
events.
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| 88 |
STRUCTURAL GEOLOGY AND TECTONIC EVOLUTION OF THE NORTHEASTERN RINCON MOUNTAINS, COCHISE AND PIMA COUNTIES, ARIZONALingrey, Steven Howard January 1982 (has links)
The northeastern Rincon Mountains record a superposed history of low-angle normal-slip shear strain. Moderate- to low-angle faults, mapped previously as Laramide thrust faults, are recognized as normal faults of Tertiary age. Two faults are predominant: a younger-overolder ductile fault forms the base of a metasedimentary carapace, a ductile shear zone (decollement zone) of southwest vergent slip, and an older-over-younger (locally younger-over-older) fault named herein as the San Pedro basal detachment fault forms a brittle shear surface of west-southwest slip. The decollement zone is characterized by passive-slip folding, flexural-flow folding, boudinage, stretched pebbles, and low-angle ductile normal faults. Structural analysis reveals southwest- ergent simple shear strain with a component of superimposed pure shear strain (vertical flattening). The San Pedro basal etachment fault underlies a faulted, distended allochthon. The internal structure of the allochthon is characterized by an imbricate shingling of tilted fault blocks against west-dipping normal faults, suggesting emplacement from the east by an extensional and/or gravitional mechanism. Detachment faulting involved Late Oligocene sedimentary rocks yet cuts ∼26 m.y. old dikes. Mid-Miocene (?) faults form north-trending fault blocks which have rotated rocks of the metamorphic basement and the allochthon eastward. High-angle normal faults of the Basin and Range disturbance form an eastern fault margin across which the northeastern Rincon Mountains have been uplifted. The deformation recorded in the northeastern Rincon Mountains is interpreted to reflect mid-Tertiary crustal extension. Early structural elements define a ductile shear zone which is either truncated or overprinted by a subsequently thinner zone of brittle shear. The shear zone descends stratigraphically westward across the Rincon Mountains. Reconstructions of its mid-Tertiary configuration show the shear zone to be a surface of normal-slip. Displacement near the surface is by brittle shear, but is progressively replaced by ductile shear down-dip. Evolution of the surface superimposes the region of brittle shear against the region of ductile shear. Late Cenozoic block faulting has segmented, tilted, and exhumed the surface.
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| 89 |
Stratigraphy of the Permian Rainvalley Formation, southeastern ArizonaVaag, Myra Kathleen January 1984 (has links)
No description available.
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| 90 |
Stratigraphy and Sedimentology of the Bisbee Group in the Whetstone Mountains, Pima and Cochise Counties, Southeastern ArizonaArchibald, Lawrence Eben January 1982 (has links)
The Aptian-Santonian(?) Bisbee Group in the Whetstone Mountains comprises 2375 m of clastic sedimentary rocks and limestones. The basal Glance Conglomerate unconformably overlies the Pennsylvanian-Permian Naco Group. It consists of limestone conglomerates which were deposited in proximal alluvial fan environments. The superadjacent Willow Canyon Formation contains finer grained rocks which were deposited in the distal portions of alluvial fans. The lacustrine limestones in the Apache Canyon Formation interfinger with and overlie these alluvial fan facies. The overlying Shellenberger Canyon Formation is composed mostly of terrigenous rocks derived from westerly terranes. This formation contains thick sequences of fluvio-deltaic facies as well as a thin interval of estuarine deposits which mark a northwestern extension of the marine transgression in the Bisbee -Chihuahua Embayment. The youngest formation (Upper Cretaceous?) in the Bisbee Group, the Turney Ranch Formation, consists of interbedded sandstones and marls which were deposited by fluvial and marine(?) processes.
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