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Mine Exploration Forum

Author Cwmorthin lost world an observation
dwarrowdelf

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Joined: 09/02/2011
Location: Lost in Cwmorthin...and Oakeley too !!

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Cwmorthin lost world an observation
Posted: 06/06/2018 13:58:10
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When I visited the "Lost Word" chambers on the Oakeley boundary last time, I noticed a trickle of water very obviously disappearing into the ground, just inside the cross-cut level which connects the 2 sets of galleries, (presumably both runs of chambers are in the back vein – the northern one however is largely inaccessible) Having said that, there is another run of smaller chambers still further north, which may actually be beyond the back vein.

Anyway, was just wondering in view of Graham Isherwood's comment on a previous thread discussing the lay out in this area, if the water is actually disappearing down into the fault? He thinks that the fault runs along the northern wall of the first set of chambers ie the southern set where one enters from lake level.
On breifly examining this phenomena, couldn't see any obvious cracks, although I didn't really have that close a look The water just seemed to be soaking down to somewhere Confused Have since wondered where it will be going. The crosscut tunnel, more or less at this point seems to have a band running up the wall, as if the rock has changed? Maybe the water is finding its way down through less consolidated rock at the point of the fault, but if so, down to where?



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Willy Eckerslyke

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Joined: 03/11/2011
Location: Anglesey

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Cwmorthin lost world an observation
Posted: 06/06/2018 15:11:23
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This puzzled us a little when we were busy in there. I'm pretty certain that it's not going down a hole or crack but just running along the floor into the passage on the right, hidden below the loose surface. There's a flow onwards through the collapse in that passage. IP: 147.143.12.215
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