RFG 2018 Conference

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Sinkhole Conference: Register Now - Deadline Very Soon!

Sinkhole Conference postcard
The Multidisciplinary Conference on Sinkholes and the Engineering and Environmental Impacts of Karst, generally known as “The Sinkhole Conference,” is the longest-running international conference of its type. Since 1984, engineers, geologists, hydrologists, land managers, biologists, and many others have gathered at these meetings to exchange cutting-edge information on karst and its many benefits and challenges. The Sinkhole Conference is managed by the National Cave and Karst Research Institute and this next conference is jointly organized with the Karst Waters Institute.

insoluble residue

insoluble residue (in-sol'-u-ble). The material remaining after the more soluble part of a rock sample has been dissolved in, e.g., hydrochloric acid or acetic acid. It is chiefly composed of siliceous material (e.g. chert or quartz) and various detrital minerals (e.g. anhydrite, glauconite, pyrite, and sphalerite). Abbrev: IR. See also: siliceous residue.

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