Doctoral Dissertations

Abstract

"In northern Arkansas's Springfield and Boston Mountain Plateaus, distinctive geomorphological landslide features have shown historical continuity. USGS topographic maps (1:24,000, 7.5-minute series) serve as valuable resources for studying terrain characteristics and hydrological patterns.

This study uses a manual mapping approach with high-resolution LiDAR data and geological maps in a GIS environment. The method identifies historic landslide features by analyzing anomalous topographic contour patterns overlaid on LiDAR-derived hillshade maps, revealing various mass movements along the Buffalo National River. Data from the Office of State Geologist and fieldwork reconnaissance were utilized to map older landslide features with high confidence. Some previously unrecognized landslides were identified, and new features like scarps allowed for more precise classification. LiDAR hillslope maps improved spatial resolution and extended the landslide validation, especially in forested terrain. Combining manual mapping with LiDAR hillshade maps results in more than 80 % mass wasting estimates, depending on LiDAR data resolution.

XRD-2CLAY analysis of four samples of geologic formations, Atoka, Bloyd, Cane Hill Member of the Hale Formation, and Fayetteville Formation, revealed mica-smectite contents ranging from 13% to 18% with ethylene glycol and 3% to 9% at 350°C analyses. A preliminary regional landslide susceptibility mapping assessment assessed environmental and triggering factors using the analytic hierarchy processing (AHP) method. This approach identified landslide-prone areas, providing a reliable susceptibility map using GIS overlay techniques" -- Abstract, p. iii

Advisor(s)

Rogers, J. David

Committee Member(s)

Cawlfield, Jeffrey D.
Maurer, Jeremy
Wronkiewicz, David J.
Holmes, Robert R., 1965-

Department(s)

Geosciences and Geological and Petroleum Engineering

Degree Name

Ph. D. in Geological Engineering

Publisher

Missouri University of Science and Technology

Publication Date

Summer 2024

Pagination

xix, 197 pages

Note about bibliography

Includes_bibliographical_references_(pages 184-195)

Rights

©2024 Abdurraouf Okok , All Rights Reserved

Document Type

Dissertation - Open Access

File Type

text

Language

English

Thesis Number

T 12402

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