Areas of geologic formations of irregular limestone deposits with sinks, underground streams, and caverns. [EPA Terms of Environment <
Alexandria Digital Library Feature Type Thesaurus
Karst Interest Group Proceedings (February 2001) [ More info] Scientific presentations and papers about geologic, geophysical, and hydrologic studies of karst areas in the U.S.
Potential environmental impacts of quarrying stones in karst - a literature review [ More info] This report is the result of an extensive literature search to determine the state-of-the-knowledge regarding environmental impacts from quarrying carbonate rocks in karst formations to better use of karst resources in sustainable ways.
Sinkholes [ More info] Explains sinkhole formation and distribution, with special emphasis on their occurrence in Missouri
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