Gambier Karst Region - South Australia & Victoria

Solution Pipes

Solution pipes are a distinctive feature of syngenetic karst in dune limestone. They form from solution by focussed vertical flow of rainwater down into the porous dune material. The focussing can be by one or more of the processes shown below.

For more discussion of how they form, view the following:
Paper on Solution Pipes for ASF Conference, January 2003, in PDF form, KG Grimes 2003
Paper on Solution Pipes, published in The Victorian Naturalist, in PDF form, KG Grimes 2004

Selected photographs and diagrams

To view full size images, click on the displayed image.
Progressive evolution of a pipe, with cementation of the rim, and the surrounding sand.
Various ways of focussing the vertical flow into the dune.
Soil-filled solution pipes beneath a palaeosoil between two dune limestone formations.
Canunda National Park, SA
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A solution pipe, with a thin cemented rim.
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A pair of small solution pipes. Scale bar is 10 cm.
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A field of closely-packed solution pipes, formed in a hard pan (calcreted soil).
Canunda National Park, SA
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A group of closely-packed solution pipes. Scale bar is 10 cm.
Canunda National Park, SA
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Solution pipes with cemented rims. At the "Petrified Forest", Cape Bridgewater, Vic.
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Stereo-Pair of solution pipes at the "Petrified Forest", Cape Bridgewater, Vic.
View stereopair with crossed-eyes
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Stereo-Pair of rounded "cigar-shaped" base to a solution pipe. Scale bar is 10 cm.
near "The Springs", Cape Bridgewater, Vic.
View the stereopair with your eyes crossed
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Solution pipe entrance to Morgans Cave, SA
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Sand cone beneath a solution pipe. Fox Cave, Naracoorte, SA
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Solution pipe intersected by a cave. Note the thick cemented rim, with concentric structures, and the softer red soil fill in the core.
Easter Cave, WA
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Rhizomorphs and calcite veins in dune limestone.
near "The Springs", Cape Bridgewater, Vic.
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