The green, glauconite-coated flints of the Bull Head Bed are instantly recognisable. Find out more, plus about percussion cones in flint at Ipswich Minster, in GeoSuffolk Times 65
The green, glauconite-coated flints of the Bull Head Bed are instantly recognisable. Find out more, plus about percussion cones in flint at Ipswich Minster, in GeoSuffolk Times 65