sentences:  The sound of the explosion was heard in neighbouring Greenfield Colliery through a barrier of solid coal.In the Blantyre Colliery (where an estimated 216 men had lost their lives 10 years earlier) miners working that morning were temporarily blinded with the dust thrown up by the vibration of the explosion.An initial assessment of the damage by one of the managers revealed both compartments of No 1 shaft and one of the compartments of No 2 Pit were blocked by the cages used to lower the miners.