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Other features, such as mottled structures, nodules and pisolites, also form , but have no karst analogue.
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A network of small solution tubes, partly open and partly filled with nodules. In the pallid zone of a deep weathering profile. Darwin. NT.
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Soluton tubelets with leached halos. In a feruginised DWP. Charters Towers, Qld.
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Vuggy porosity in a ferruginised DWP. This makes a shallow "karstic" aquifer. Weipa, N. Qld. Stereopair - view cross-eyed. S900317.jpg and S900318.jpg |
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Vuggy porosity in a ferruginised DWP, with infill of bauxite nodules (red). Weipa, N. Qld.
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A solution vugh in the mottled zone of a laterite profile. Note the breccia fragments on its floor and the pale yellow opal infill. Donors Plateau, Qld. S830230.jpg |
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Solutional cavity with nodular infill, in a ferricrete at Lake Buchanan, Qld.
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DWP (very coarse mottled) on bedded siltstone, showing the original bedding disrupted by a pocket of brecciated material. Lake Buchanan, Qld. S860510.jpg |
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Brecciated material in a Deep Weathering Profile. The fragments have been further rounded and rims have formed on some. Donors Plateau, Qld. S841633.jpg |
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Brecciated bands in the mottled zone of a deep weathering profile. Donors Plateau, Qld. See following photo for details. S830226.jpg |
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Detail of specimen from previous site. Upward-coarsening breccia. A result of upward stoping of the roof of the cavity and ongoing solution of the fragments to leave an insoluble dark ferruginous sludge at the bottom. The open spaces were later filled with pale grey opal. Donors Plateau, Qld. S830437.jpg |