Glossary of Karst and Cave Terms
Based on "A Lexicon of Cave and Karst Terminology with Special to Environmental Karst Hydrology" EPA/600/R-02/003, 2002, EPA: Washington, DC., Speleogenesis Glossary includes 2699 cave & karst terms
underflow
Deep phreatic flow within an aquifer, along flow lines that are largely unrelated to the more obvious flow at higher levels. Underflow drainage may be slower than that in shallower systems, and may travel towards more distant and/or unrelated springs [9].
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