Stromatolitic crayfish-like stalagmites (UBSS Proceedings v.18(3))
Proceedings » Volume 18 » Sub-volume 3
Armstrong,R.A.L., Cox,G., James,J.M., and Leggett,K.E.A., 1989. Stromatolitic crayfish-like stalagmites.
UBSS Proceedings, 18(3) , pp 339-358 Download PDF.
Abstract: Stalagmites with a crayfish-like profile are found in two natural tunnels in new South Wales in windy, moderately-lit sites; some of them were noted tourist attractions 100 years ago. The morphology and orientation of these stalagmites has been examined in relation to the light intensity falling on them . The internal structure, mineralogy and microbiology of one stalagmite and a related flowstone have been studied, resulting in a hypothesis for the mode of formation of the crayfish-like stalagmites. The stalagmites are compared with other speleothems and similar surface concretions. It is concluded that these stalagmites can be classified as stromatolites.