The coalfield represents an erosional remnant of the South Wales coal basin preserved within the Variscan fold belt. |
With no new mines anticipated for the northern section of the coalfield the port's commodity hinterland had effectively vanished. |
Any subsidence in the Selby coalfield will be nothing like as bad, he says. |
This surface and the overlying bauxitic claystones are broadly distributed across most of central Guangxi, including the Heshan coalfield. |
In the Heshan coalfield, all coals show a strong marine influence, as indicated by the very high organic sulphur contents in the coals. |
When these pictures were taken, the Lancashire coalfield boasted over 350 mines. |