Definition of tillite in English:


Pronunciation /ˈtilīt/ /ˈtɪlaɪt/


  • Sedimentary rock composed of lithified glacial till.

    ‘He warned that not all poorly sorted rocks were true glacial tillites and thus were unreliable indicators of past climate and continental positioning.’
    • ‘One of the classical Late Pre-Cambrian tillites is the Bigganjargga tillite of northern Norway.’
    • ‘Both the tillite and the rock surface are demonstrably Pre-Cambrian.’
    • ‘That tillites were found closely associated with carbonates was cited as additional evidence of huge fluctuations in global climates.’
    • ‘This isotopic shift is supported by the presence of Musgrave-derived boulders within the tillites that are associated with the rhythmites.’