In geology, a till is a stiff unstratified deposit of clay mixed with sand, gravel and boulders without lamination, formed in a glaciervalley by means of the waters derived from the melting glaciers. The term is sometimes applied to alluvium of an upper river terrace, when not laminated, and appearing as if formed in the same manner. Research Till
In geology, unstratified describes rocks which are tot stratified, and is applied to massive rocks, such as granite, porphyry, etc., and also to deposits of loose material, such as the glacial till, which occur in masses without layers or strata. Research Unstratified
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Matt and Leela Probert
Abbreviations
Research Till
