Boulder clay

Geoarchaeology, Using Earth Sciences to Understand the Archaeological Record, published by Historic England in 2015, defines boulder clay as: ‘…a deposit derived directly or indirectly from the action of ice-masses during glacial episodes; may contain all the particle sizes from boulders down to clay particles. Boulder clay mantles much of northern and eastern England.’

Geoarchaeology, Using Earth Sciences to Understand the Archaeological Record, published by Historic England in 2015, defines till as: ‘another word for boulder clay.’

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