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Posts Tagged ‘calcite cave’

Milo Cave, originally uploaded by Mic2006.

JC and I recently visited this fascinating cave that formed as a result of calcite being dissolved from a fissure. There were little in the way of crystals – nothing like the Aladin’s paradise that is Julia Cave, but still it had a beauty of its own.

See video on Milo Cave here.

The most intriguing part of Milo Cave is the bedding plane crawl that leads from its lower resurgence. The crawl is water washed gravel and you are drawn inwards by a cold breeze that blows from somewhere in the blackness. The roof soon came down so low that crawling for me became very uncomfortable and I resolved to return with a shovel as the only thing that was stopping me was this gravel bar and beyond that a large sprouting of ghostly white fungus.

As I backed outwards, steering as far as possible from some truly horrifying monster sized Ontario cave spiders, I chanced to see a pale, translucent shelled crayfish skittering off for cover. Troglobyte adaptation (spelling?) does not happen within a few generations and to my memory there is little in the literature of Ontario cave and karst studies that mentions albino creatures (Ongley talks of one case near in Stone House Cave).

The breeze and the presence of albino creatures is indicative of deeper tunnels further in. Looking on the surface I see that the direction of the tunnel is intercepted by one possible sink point, but more hopefully it might be leading on beneath a massive hill of solid granite – that being the case, clearing a crawl-way through the gravel would open some really interesting exploration. I wonder if there is a sink point somewhere in the forest beyond the granite hill.

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JC and I have been privileged to recently explore an incredible secret cave whose walls are absolutely lined with crystals. (don’t ask where – we’ve been sworn to secrecy)

The cave leads down steeply from the forest in a rift of calcite that has been worn by running water. We initially entered from the upper entrance and worked our way downward beneath a low wall on a sloping floor. Everywhere there were crystals, they are most strongly concentrated in bands, but some of the larger crystals float in the calcite – beautifully formed with sharp and lustrous crystal faces. Some lie loose, having worn out from the calcite. There is a crevice into which I looked and within there was an apatite crystal about the size of a football just lying wedged there and from within that crevice there was a noticeable breeze that was cold and smelling of the earth.

JC and I proceeded up one of the waterways and found ourselves in this pothole pictured above.

see video on Julia Cave here.

Possibly one of the most exciting discoveries was what appeared to be a tiny jelly sack that was lying in the water and within the sack there was what appeared to be a filament like fishing line, about half an inch long but displaying every spectral color – all along its length there was a prismatic effect – like it was fire cast off from a diamond, and around that filament there wriggled tiny worms. So if one morning these worms burst from my forehead you know it was likely some alien species that i’d picked up in the cave (It would not be the first time).

So this recent visit puts us onto thinking about visiting more caves in calcite. Admittedly¬†we are experts in finding limestone and dolostone caves, we have made some impressive discoveries over the years, but we know the clues in sedimentary geology/geography and it doesn’t take us long to root out a dolostone tunnel. Calcite is¬†unpredictable, I can’t imagine that aerial photos will be all that useful, but we now have several leads and have visited two such caves (Both parts of Julia we count as one – there is also Milo Cave that I am yet to post on and the exciting discovery of an albino-ish crayfish which I photographed).

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