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    The Conodont Biostratigraphy of the Black Prince Limestone (Pennsylvanian) of Southeastern Arizona

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    Master's Thesis full PDF
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    Author
    Barrie, Kathleen Ann
    Issue Date
    1975
    Keywords
    Arizona
    biostratigraphy
    Black Prince Limestone
    carbonate rocks
    Carboniferous
    clastic rocks
    Conodonta
    depositional environment
    Horquilla Limestone
    Idiognathoides
    Lower Pennsylvanian
    microfossils
    Morrowan
    mudstone
    Neognathodus
    Paleozoic
    Pennsylvanian
    Rachistognathus
    sedimentary rocks
    southeast
    Spathognathodus
    stratigraphy
    subtidal
    tidal flats
    United States
    zoning
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    Committee Chair
    Schumacher, Dietmar
    
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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 Antevs Library, Department of Geosciences, and 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 or the department.
    Collection Information
    This item is part of the Geosciences Theses collection. It was digitized from a physical copy provided by the Antevs Library, Department of Geosciences, University of Arizona. For more information about items in this collection, please email the Antevs Library, antevs@geo.arizona.edu.
    Abstract
    The Black Prince Limestone of southeastern Arizona has been assigned to the Morrowan on the basis of several long-ranging fossils. Since these were not especially diagnostic, the exact time represented by the Black Prince within the Morrowan was uncertain. To date the Black Prince more precisely, six sections were systematically sampled for conodonts. The condonts found, especially Neognathodus bassleri, Rachistognathus muricatus, Idiognathoides convexus, and Spathoqnathodus coloradoensis, indicate a middle Morrowan to early Derryan age for the Black Prince in the study area. Four conodont zones can be recognized: the Neognathodus bassleri Zone, the Idiognathodus sinuosis.- Streptognathodus anteeccentricus Zone , the Idiognathoides convexus Zone, and the Spathognathodus coloradoensis-Neognathodus columbiensis Zone. These zones compare favorably with the zonation previously established in the type Morrowan. This biostratigraphic evidence suggests that the hiatus between the Black Prince and Horquilla Limestones increases in magnitude from southeastern to south-central Arizona. The Black Prince represents a sequence of tidal flat and shallow subtidal carbonate deposits. Mudstones and sparsely fossiliferous wackestones with low fossil diversity and abundance characterize the tidal-flat facies. Grainstones, packstones, and fossiliferous wackestones with high fossil diversity and abundance characterize the shallow subtidal facies.
    Type
    text
    Thesis-Reproduction (electronic)
    Degree Name
    M.S.
    Degree Level
    masters
    Degree Program
    Graduate College
    Geosciences
    Degree Grantor
    University of Arizona
    Collections
    Geosciences Theses

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