Which way did the river flow? - Sedimentary structures - imbrication

Sedimentary rocks often contain clues about their origins. Sediments which were deposited by fast-flowing currents in rivers or on beaches may
demonstrate imbrication, where rock fragments were pushed in one direction by the current so that they overlap each other. Ask your pupils to simulate this process with dominoes by trying the ELI 'Sedimentary structures - imbrication; which way did the river flow?'

Many more activities about the clues to environment given by sedimentary rocks may be found under 'sedimentary structures' in the index or by using the search engine on the website.