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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