Grants and Contracts Details
Description
Abstract: Kentucky Geological Survey Categorizing and Documenting Geologic Map Discontinuities
Doug Curl, PI and William Andrews, Kentucky Geological Survey (doug@uky.edu, wandrews@uky.edu )
The Kentucky Geological Survey proposes to utilize our existing detailed statewide digital geologic map
dataset—digitized from hard copy maps produced in a USGS-KGS effort from 1960 to 1978—to identify
and categorize the conceptual origins of polygon busts, compile best-practice options for resolution of
busts, and develop appropriate metadata and documentation. The original mapping process included
more than 200 geologic field mappers over 18 years, and multiple sources for quadrangle-boundary
disagreements developed. This project will reexamine each “bust,” identify the conceptual origin of the
bust (eg. Nomenclature change, geologic marker bed transition, expanding/collapsing stratigraphic
section, lumping/splitting, etc). For each different type of bust origin, we will explore the best options
for resolution including reconciliation with GeoLex and adjacent published geologic maps. We will
develop a model of metadata and documentation to identify the type and origin of busts identified.
Taken together, these products can provide a strong basis for a national consideration of the necessary
tasks for reconciling the State Geologic Map Compilation or similar multi-jurisdictional compilation
datasets. This project will focus on intra-state issues developed from the original field mapping and
subsequent (and separate) digitization process.
To achieve our objective, KGS will hire a Temporary Geologist GIS Technician to examine the contact line
and geologic unit polygons from the KGS Digital Vectorized Geologic Quadrangle (DVGQ) data and
develop metadata at the feature level describing why decisions were made to eliminate geologic unit
busts, and also create features and metadata describing why decisions were made to maintain busts
between quadrangle boundaries. Curl, Andrews, and KGS stratigrapher, Steve Greb, will provide input
and consult about GIS techniques and software, geologic mapping questions, and stratigraphic issues.
Along with updated DVGQ data, KGS will also develop a data schema and metadata structure for
handling this type of information, which other geologic surveys could adopt for similar issues. Based on
this work KGS will also develop a nomenclature and rubric for describing bust types.
Status | Finished |
---|---|
Effective start/end date | 9/1/21 → 11/30/22 |
Funding
- US Geological Survey: $60,000.00
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