Which came first…the Chick, the Hen or the Parrot?

16-03 Coal miningIncreasingly, we’re asked to produce Coal Mining Risk Assessments.  Sometimes these make your brain hurt but you get the chance to research and interpret real geology which is a surprisingly small element to much of our work.  The Bristol coal seams in particular, have some crazy names – my favourites include the Primrose Vein, the Stinking Vein, the Chick, the Hen and the Parrot!  By understanding the order in which the various veins appear, we are able to assess the potential risks of a coal shaft opening up.