Greetings cavers and cave interested readers. As you might have gathered by the photo, I have spent some time underground today in the solitary and yet thought provoking pursuit of extreme cave digging. Admittedly there were times when it felt like I was buried alive and there were also the issues of trying to squeeze back out of the hole by which I had entered this tunnel.
JC and I have delayed a return to the shafts that we found last weekend (so as not to bother the land owner too much) and instead we investigated another lead. Somewhere near that lead we found a blind valley and in clearing the sticks and leaves away we found a pheratic tube that is choked with yellow clay.
As I was digging there was plenty of time for reflection and I came up with the thought that this tube must have drained the lake that we think must have existed in the hollow of a nearby field. Although the field is in an area of highly developed karst, it’s contact with the rock is sealed by this clay and so not surprisingly the drainage points are limited to a few locations – this is one of them. again, this geographic situation is similar to the geography of the cave system that we found in Hamilton last year – Wasteland Waterway (Consider this when looking for caves in Ontario).
We are still unsure of when the cave tunnels were choked (glacial or at the initial clearance of the land), but it must have been some time ago as calcite has dripped down onto the surface of the fill and formed a solid scab in places. Obviously our excavations have to be very carefully performed as we do not want to damage speleothems. The tube appears to be elliptical in shape and the formations fill the airspace between the clay choke and the roof. whatever we excavate will be our crawlspace.
See the video we took of some bones that were discovered. Video of the newly discovered Tooth Tube (tentatively called that until we settle on a final name). also check out my book on caving here – ‘Caving in Ontario; Exploring Buried Karst‘