Report exploration:
The first two days, we parked in the same place as last time. At the end of the second day, after some research we are able to find the owner, Mr Maurice Voisin Margilley. This first very reluctant about the presence of divers and vehicles on his land eventually we allow vehicle access to the cauldron in the context of our exploration for which it marks the end a lot of interest . It will even offer us his potato harvest nuts and we propose to know in advance next time so that we can mow a path in his meadow.
09/16/2007
First dive we, we equip the pit entrance, the mill and the beginning of the gallery with a rope of 70m in length to facilitate access and allow to hang relay and deco bottles. After this, I conducted over 80m and thus pushes the peak in this gallery to 90m from the exit of the mill, my depth gauge tells me 24m. As previously stated, it is a comfortable size gallery on the ground clay (Not a gallery of underground anyway). The walls are very dark, absorbing the strong light of my lamps. A few blades of erosion here and there, some passages a little lower ceiling (just need a little head down). And counting. As expected, consumption is high, the back gallery and a relatively long decompression waiting to 3m.
Michel will continue until the tip 140 and also will tap a beautiful déco.Nous decide after the dives this day of exploration in Topographia As and then as some would say Roger: "No topo, no 'explosion' We spend the evening at the restaurant to celebrate.
17/09/2007
Objective of the day: First topography and resumption of exploration. Michael is much more seasoned than I and topo plunges the first one. Indeed, this dive will be enough for his book "swallows" the 140 meters.
I therefore put to water for the tip. I'm not very zen now, not relax with over 12 liters and more I hang out with my 6 liter alongside, I would have done better not to carry around so far, it stirs a little, the evening the day is surely also some chose.L appeal of exploration, the unknown, the discovery is still stronger. I visit the 60m that Michael said yesterday, the gallery is fairly straight but not really, but it continues to rise slightly to -23 (140m). Then down, and I still draw my line until I stop or 165m on what appears to be a well from which the top, to -28, is lined with blades of erosion and I do not see the bottom. U-turn on almost third and "fear of emptiness," not relax today. In return, I visit the left side of the 2nd well (relative to the mill), lift up -22, And clamp it over the pots are.
18/09/2007
I am much more relaxed today, I put high-speed shaft, mill (which eventually became sympathetic despite his privacy) and the rest of the gallery. Topography quiet until plumb this dark pit (165m). I let myself sink into that black hole that is close to 8m (wire ceiling to -34), the bottom is covered with coarse sand at this location. I continue and stop at the foot of a 180m chimney that seems impenetrable, but where next? I pick up the dust from the ceiling with my bubble cloud Brown goes down on me. Turn around and topo of the last 15 yards on the return. I do not drag too much, a little history to limit the levels by turning in circles in the small basin. I picked up some rocks to the daughter of Mr. Voisin.
Michel then dipped the tip and grows until 210m. In fact, it goes through a narrow passage surrounded by blocks. There is almost more clay on the bottom, the area must be dynamic enough. It keeps alive and well. He picks up a few pebbles in the mill for the girl. He volunteered 1:25 at little game of goldfish in his tank by its bearings.
Objective of the day: First topography and resumption of exploration. Michael is much more seasoned than I and topo plunges the first one. Indeed, this dive will be enough for his book "swallows" the 140 meters.
I therefore put to water for the tip. I'm not very zen now, not relax with over 12 liters and more I hang out with my 6 liter alongside, I would have done better not to carry around so far, it stirs a little, the evening the day is surely also some chose.L appeal of exploration, the unknown, the discovery is still stronger. I visit the 60m that Michael said yesterday, the gallery is fairly straight but not really, but it continues to rise slightly to -23 (140m). Then down, and I still draw my line until I stop or 165m on what appears to be a well from which the top, to -28, is lined with blades of erosion and I do not see the bottom. U-turn on almost third and "fear of emptiness," not relax today. In return, I visit the left side of the 2nd well (relative to the mill), lift up -22, And clamp it over the pots are.
18/09/2007
I am much more relaxed today, I put high-speed shaft, mill (which eventually became sympathetic despite his privacy) and the rest of the gallery. Topography quiet until plumb this dark pit (165m). I let myself sink into that black hole that is close to 8m (wire ceiling to -34), the bottom is covered with coarse sand at this location. I continue and stop at the foot of a 180m chimney that seems impenetrable, but where next? I pick up the dust from the ceiling with my bubble cloud Brown goes down on me. Turn around and topo of the last 15 yards on the return. I do not drag too much, a little history to limit the levels by turning in circles in the small basin. I picked up some rocks to the daughter of Mr. Voisin.
Michel then dipped the tip and grows until 210m. In fact, it goes through a narrow passage surrounded by blocks. There is almost more clay on the bottom, the area must be dynamic enough. It keeps alive and well. He picks up a few pebbles in the mill for the girl. He volunteered 1:25 at little game of goldfish in his tank by its bearings.
Conclusions:
We are still far from the end of this explosion, but gas reserves that we had already provided for are just a bit. The use of rope and a spare cylinder attached to it to 3m is a great idea. However, the duration of the decorations is frankly high, the use of Nitrox mixture in bottom and a decorative square with pure O should be considered. The reports we have established with the owner will be more next time. The development of the cavity passes now 70 meters to 280 meters.
Divers: Pauwels M. et Hecq N.
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