I find Dave's comments about 'sludgy' deposits interesting. Some of the
deposits in the dales were from karst features. I once took two small samples
of clay (handfuls) from a vertical fissure in Faggergill/Stang Mine, I had
noticed a few nuggets of ore which were probably too few for the miners to
have bothered with; but I wondered what else was in the clay.
I wet sieved the clay (fairly granular but still with lumps of fine clay)
through a 75 um sieve and found that there had been about 5% galena
(separated by panning) in the range 600 um to 75 um (not including what had been
washed through the 75 um sieve. I wonder how effective buddling at the time
might have been with such deposits.
Regards
Ian Spensley
In a message dated 18/01/2011 18:32:00 GMT Standard Time,
[log in to unmask] writes:
The buddle dams that Mike refers to are the result of a particular set of
circumstances.
Vol. 3 of Jim's book that Mike was reviewing is the section that stretches
from Youlgreave to Matlock (approx.) The veins in this part of the orefield
largely tend to be of a "sludgy" character and often did not require
crushing - hence, by and large, our horse crushers are to the north of the
River Wye. In addition, in this part of the orefield, there is quite a
considerable amount of what might be described as alluvial lead deposits.
These occur in both Ice Age and much older karst features. For example, in
Millclose Mine, you can still find water-worn galena nuggets in cave
sediments. Also many of the tips had been reworked previously (certainly in
the 17th century). This leads to the reworking of very low grade deposits
and the generation of these buddle dams particularly around Winster and
Wensley (but elsewhere). One of the interests of these is that all the
water
to carry out the buddling has to be fetched from underground - there being
very little surface water. For this reason we have no hushing, as far as
I'm
aware of, in Derbyshire.
Cheers, Dave Williams
-----Original Message-----
From: mining-history [mailto:[log in to unmask]] On Behalf Of
Mike Gill
Sent: 15 January 2011 15:09
To: [log in to unmask]
Subject: Buddle Dams
While reviewing the latest volume of Jim Rieuwerts series on Derbyshire
Mining recently I was struck by a photograph of a landscape dominated by
buddle dams.These features are described as mainly mid C19th earth dams
into which the sludge etc from buddling was placed.
I cannot remember seeing a non-Derbyshire example, can anyone on the
list provide one please.
Mike Gill
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