That is a thought Mike. There are whinstone dikes at a few places in Co Durham and Cleveland. I suppose that such occurrences may have been the inception for coking. Although I spend Fridays child minding in Bowburn, I don't know the geology either.
The obvious use in Co Durham would be for iron smelting.
Regards
Ian
-----Original Message-----
From: Stafford Linsley <[log in to unmask]>
To: mining-history <[log in to unmask]>
Sent: Tue, 8 Apr 2014 12:42
Subject: Re: Cinder pits
Re Mike Gill's point, an igneous intrusion at Boldon Colliery in County
Durham had also coked coal in a part of the pit.
Cheers
Stafford
On Tue, Apr 8, 2014 at 11:43 AM, Mike Gill <[log in to unmask]> wrote:
> Not sure of the geology around Bowburn, but is it possible that a 'nearby'
> ingeous intrusion had cooked the coal and they were mining cinders/coke?
> The Ordnance Survey recorded Craigman Pit, near New Cumnock in Ayrshire,
> as working "Coke and Graphite".
>
> Regards,
>
> Mike Gill
>
>
>
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