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9-15 Exploring Depth to Bedrock Estimation

Session: Advances in Geologic Mapping, Databases, and Dissemination: Student Posters

Poster Booth No.: 56

Presenting Author:

June Lennex-Stone

Authors:

Lennex-Stone, June¹, Hughes, Maysn², Koch, Hudson³, Robinson, Donna⁴

(1) Department of Earth and Space Science, Morehead State University, Morehead, Kentucky, USA, (2) Earth, Environmental, and Atmospheric Science, Western Kentucky University, Bowling Green, Kentucky, USA, (3) Landslides and Engineering Geology, Kentucky Geological Survey, Lexington, Kentucky, USA, (4) Landscape Evolution and Mapping, Kentucky Geological Survey, Lexington, Kentucky, USA,

Abstract:

The geologic Depth To Bedrock (DTB) is an important aspect of soil and lithologic science that has no widely used and agreed upon non-invasive estimation practice. This research project attempts to estimate DTB using readily available Digital Elevation Model (DEM) data and pre-existing core logs as validation. DTB within this project is defined as the vertical distance from Earth’s surface to the geologic bedrock layers directly below.This projct aims to estimate DTB using DEM-derived parameters, based off of the previous methodology of Catani et al. (2010) and Xiao et al. (2023). Parameters were determined by analyzing the correlation between soil depth and various geomorphic features of landscapes.This methodology was applied to McLean County, Kentucky alongside a control DTB map created using the Kentucky Geological Survey’s coal borehole database. Using the DEM parameters and the borehole interpolation, we tested a generalized regression in order to derive a stand-alone DTB map.

Exploring Depth to Bedrock Estimation

Description

Session Format: Poster

Presentation Date: 3/9/2026

Presentation Room: RCC, Lower Level Hall

Poster Booth No.: 56

Author Availability: 2:00-4:00 p.m.

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