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Full-Text Articles in Physical Sciences and Mathematics
Late Pleistocene Piedmont Records In The Grand Staircase Region, Southern Utah, Alexander K. Short
Late Pleistocene Piedmont Records In The Grand Staircase Region, Southern Utah, Alexander K. Short
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Today the climate in the southwestern United States is arid, characterized by desert landscapes and habitats, periods of drought, and arroyo streams that frequently fill with, and erode, through fine riverbed sediments. A series of cliffs and benches rising from the Grand Canyon to the southern plateaus of Utah, known as the Grand Staircase - home to Kodachrome Basin State Park, Bryce Canyon, are a classical example of this environment as we know it today. However, a record spanning the past 300 thousand years is preserved on the steps of the staircase indicating periods in the past where the climate …
High-Resolution Holocene Alluvial Chronostratigraphy At Archaeological Sites In Eastern Grand Canyon, Arizona, Erin Margaret Tainer
High-Resolution Holocene Alluvial Chronostratigraphy At Archaeological Sites In Eastern Grand Canyon, Arizona, Erin Margaret Tainer
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Understanding the nature of Colorado River deposits in Grand Canyon helps reveal how the river responds to changes in its Colorado Plateau tributaries and Rocky Mountain headwaters. This study focused on Holocene alluvial deposits associated with archaeological sites excavated near Ninemile Draw in Glen Canyon and at Tanner Bar in eastern Grand Canyon. Two previously-developed conceptual models of deposition were tested based on previous work. Previous researchers have suggested that Holocene alluvial deposits in Grand Canyon are a series of inset aggradational packages that correlate to valley fills and arroyo-cutting cycles in Colorado Plateau tributaries and are laterally consistent throughout …