Ah - a quick Google of "Joyce Lundberg phytokarst" finds useful stuff, e.g. https://core.ac.uk/download/pdf/70974722.pdf
We also saw them in Papua New Guinea in the partially lit part of the Nare River cave. I don't remember them in any of the other caves we explored. Badlad might have a better memory.
Are they that dissimilar to:https://www.nationalgeographic.com/magazine/2009/11/stone-forest/
This (erosive phytokarst) phenomenon is by no means restricted to the tropics, although first recognised there by Dave Brook and friends on the first Mulu expedition - here in Green Cave [Pic 1]. This is on the small side, some of the Mulu examples photographed by more recent expeditions are metres in length.On the second Mulu expedition I measured some with Peter Bull [ https://www.academia.edu/1320252/Observations_on_Phytokarst ]. I have since seen good examples of them in limestone in Guizhou, China, and in the Picos de Europa, Spain [Pic 2]; in speleothem in southern Sarawak [Pic 3 (joss sticks for scale)]; and in sandstone at one entrance to the Roraima Sur caves, Venezuela. Mike Simms reported examples from the west coast of Ireland and the 2019 Greenland expedition found (rather less impressive than Mulu's) examples in the cave entrances there. I have also seen reports from France and Spain...There is also constructive phytokarst, crayback formations etc...
Phytokarst has been reported from a few caves in Thailand, scattered throughout the country.The term is sometimes used, wrongly, for the stalactites that grow towards the light (eucladioliths).
Thanks 🙂 that's interesting to know. I don't suppose you have any photos for comparison?
Where are your photos from Jo?
Off topic, but the "Karst Rock Features. Karren sculpturing" book mikem referenced includes a picture from Blah, Derbyshire: Wezzit?
Where are your photos from Jo?Off topic, but the "Karst Rock Features. Karren sculpturing" book mikem referenced includes a picture from Blah, Derbyshire: Wezzit?
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