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It is a sinkhole plain. It is where the limestone had flattened out from being transported away by the underground flow and dissolution. The best example outside of the WKP is the one around Mammoth Cave in Kentucky. There you can see the hills literally melting into the plain, and the caves run from the hills out under the plain. ----- Original Message ----- From: "Christopher Brown" <hokiediver@ya*.co*> To: <techdiver@aquanaut.com> Sent: Friday, May 18, 2001 7:17 AM Subject: RE: "reverse flow" > What is a karst plain, anyway? > > Chris Brown (not a caver) > Suffolk, VA > > --- Trey <trey@ne*.co*> wrote: > > > > Blue holes are tidal but can have some very twisted > > relationships to the > > tides. Caves in karst plains tend to move in one > > direction unless there is a > > temporary disruption , like the breaking of an > > aquaclude. Springs, > > especially along rivers, can reverse and siphon when > > the level of the > > surrounding water rises. Speed of flow is definitely > > not only tidal ( moon > > pull ) , but dependent upon the hydrostatic head > > which can change locally, > > or at a great distance, but is most likely to change > > quickly locally, as in > > low tide at a resurgence into the Gulf where the > > head is coming from 50 > > miles away. > > > > -----Original Message----- > > From: Aldo P. Solari [APS] > > [mailto:aldo.solari@ho*.se*] > > Sent: Thursday, May 17, 2001 7:16 PM > > To: techdiver@aquanaut.com > > Subject: "reverse flow" > > > > > > Dear senior technical divers, > > > > I wonder whether anyone could explain the > > causes of the > > phenomenon of "reverse flow" occurring in caves. > > > > Does the "reverse flow" occur due changes in > > atmospheric > > pressure, tides, coreolli forces, venturi > > effects through the > > cave entrance or any other mechanism/s ? > > > > An interesting topic. > > > > Cheers, > > > > aldo.solari@ho*.se* > > www.ccbb.ulpgc.es/fish-ecology/solaris > > ___ > > > > > > -- > > Send mail for the `techdiver' mailing list to > > `techdiver@aquanaut.com'. > > Send subscribe/unsubscribe requests to > > `techdiver-request@aquanaut.com'. > > > > -- > > Send mail for the `techdiver' mailing list to > > `techdiver@aquanaut.com'. > > Send subscribe/unsubscribe requests to > `techdiver-request@aquanaut.com'. > > > __________________________________________________ > Do You Yahoo!? > Yahoo! Auctions - buy the things you want at great prices > http://auctions.yahoo.com/ > -- > Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. > Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'. > -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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