Abstract
Modeling Land Subsidence Due to Solution Brine Mining, Central NY Track: Mining and Geosciences Author(s): William Hackett, Stephen Robinson, William Olsen, Carol Cady In the southern part of the Tully Valley, near Syracuse, NY, solution brine mining of thick halite beds (approximately 50 m thick) from the late 1800s through the 1980s caused land surface subsidence in the brinefield area. This subsidence was caused by collapse of the bedrock cavities created by the brine mining about 335 meters below land surface. The resulting surficial bedrock fractures have caused numerous hydrological problems in the valley. We have modeled the association of solution brine well use and land surface subsidence, displayed as surface fractures in the bedrock, by location, frequency, and orientation. We will examine the interaction of subsidence with hydrogeology of the area. St. Lawrence University and the US Geological Survey will create a model of subsidence activity that incorporates bedrock and unconsolidated stratigraphy integrated with elevation and GPS data. William Hackett St. Lawrence University Geology CMR 904 St. Lawrence University Canton , NY 13617 US Phone: 315-657-8101 E-mail: william.hackett@gmail.com Stephen Robinson St. Lawrence University Geology 145 Brown Hall St. Lawrence University Canton , NY 13617 US Phone: 315-229-5239 E-mail: srobinson@stlawu.edu William Olsen St. Lawrence University Launders Science Library Launders Science Library St. Lawrence University Canton , NY 13617 US Phone: 315-229-5489 E-mail: bolsen@stlawu.edu Carol Cady St. Lawrence University Library Launders Science Library St. Lawrence University Canton , NY 13617 US Phone: 315-229-5824 E-mail: ccady@stlawu.edu |
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