Linwood Mine, an underground room and pillar type limestone mine, is located approximately one-mile northeast of Buffalo, Iowa and is owned and operated by the Linwood Mining and Minerals Corporation. The project had two purposes: 1) to identify patterns in the distribution of paleokarst fills that might help the mining company more efficiently and safely work the mine, and 2) to understand better the nature, distribution, and origin of dissolution cavities and their contents. In reaching this goal I not only collected data from Linwood Mine but also compiled data collected in previous research by Cornell College students. Using a digitized base map of the mine area and a spreadsheet database I produced maps using ArcView GIS. This program allowed me to spatially represent, manipulate, and analyze the compiled data. Data analysis was performed in order to recognize relationships between different variables within the Linwood data set such as cavity control and cavity fill composition. Trends in the nature and distribution of cavities in the mine were recognized. Fracture controlled cavities displayed a relationship with strike, preferentially following northeast, northwest and east-west trends. However, no trend was laterally extensive throughout the mine.
Adam Benton, ’01 Iowa City, IA
Majors: Geology and Environmental Studies
Sponsor: Paul Garvin