Clints and soil-filled grikes.
File: D030664.jpg
These have Grikes and clints with a variety of smaller karren forms on them.
The following text is an extract from the current draft of my chapter on Tropical Monsoon Karren in Australia for the "Karren Book".
On the pediments we find smoothly rounded clints between soil-filled grikes. The clint surfaces may carry small areas of rillenkarren, but rain pits or smooth surfaces are more common, along with a range of microkarren. Solution pans (kaminitza) are less common. In one area, which appears to be flooded regularly, there were composite pans formed from coalescing smaller circular pans with small deep conical holes in their centres. It would appear that these small pans have been draining downwards through fine cracks. Solution pipes also occur; typically elongated along a joint. In places soil erosion has exposed the grikes and other, generally rounded, subsoil karren. One feature of the exposed grike walls are patterns of downward pointed triangular "teeth". Jennings (1982, p.40, his fig 4a) described similar projections on the walls of Donna Cave.
See also...
The images are mostly large and you can zoom in to look at the detail.
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Limestone pediment, with a small tower behind it. Clints and soil-filled grikes. File: D030664.jpg |
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Clint with variable-sized "rain-pits". File: D030666.jpg |
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"Rain-pits" on a clint surface. File: D030667a.jpg |
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"Rain-pits" and etched joints (or vertical bedding?) on the side of a bluff. File: D030672.jpg |
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Small "rain-pits" on a marble breccia. File: D030689.jpg |
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Coalescing pans/pits with deeper conical pits in centre of each !!! What is happening here ? A regularly flooded pediment. File: D030722.jpg |
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Pan with deep conical pits in floor. A pediment that is flooded regularly. Stereo-pair - view cross-eyed. File: D030720.jpg and ..719 |
(c) KG. Grimes, 2003