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    The development of granite landforms on the northern and western margins of the Santa Catalina Mountains, Arizona

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    Author
    Bezy, John Vincent
    Issue Date
    1998
    Keywords
    Physical Geography.
    Geology.
    Advisor
    Reeves, Richard
    
    Metadata
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    Publisher
    The University of Arizona.
    Rights
    Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
    Abstract
    The scientific literature regarding the origin of granite landscapes is dominated climatic geomorphologists who argue that these landscapes are the products of deep weathering of highly jointed granite under tropical climates, or structural geomorphologists who insist that structure and lithology are of greater importance than climate. This study examines the origin of three distinct landscapes found on three granite pediments along the western and northern margins of the Santa Catalina Mountains of southeastern Arizona. The Oracle granite pediments are dominated by boulder inselbergs, those of the Catalina granite by domed inselbergs and platforms, while Wilderness Suite granite pediments are sloping shelves that lack these characteristic landforms. These granites have a similar late Cenozoic history of weathering and erosion, but differ in structure, lithology, and age. Field evidence and laboratory analysis support the arguments of structural geomorphologists and indicate that the model presented by climatic geomorphologists is not valid for the study area. The landforms found here appear to be the products of surface weathering and fluvial erosion guided by joints and lithology.
    Type
    text
    Dissertation-Reproduction (electronic)
    Degree Name
    Ph.D.
    Degree Level
    doctoral
    Degree Program
    Graduate College
    Geography and Regional Development
    Degree Grantor
    University of Arizona
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    Dissertations

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