BEDROCK AQUIFERS OF SOUTHERN ONTARIO: THE LUCAS SULFUR WATER AQUIFER(PPT)

摘要

1. Layered Paleozoic sedimentary rocks contain regional aquifers 2. Fresh water Aquifers: overburden, interface, karst 3. Salty/sulfurous Aquifers: deep bedrock 4. Lucas aquifer is fresh water in karat-influenced bedrock near surface and salty sulfur water aquifer in deep subsurface bedrock 5. Regional flow downdip from outcrop belts towards Chatham Sag and basin centres with artesian discharge along north shore of L. Erie 6. Deep cross-formational flow (fault-controlled?) into underlying strata in Chatham Sag - dissolution of Salina salts? - More work 7. fresh water recharge with sulfur water discharge - single system with very long flow path or density-stratified? 8. Mapping has identified Lucas fresh water aquifer, sulfur water aquifer responsible for casing corrosion and loss of circulation, favourable areas for brine disposal,.alternate source of frack water.