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Nderit Drift
CATEGORY: site
DEFINITION: Site on the Nderit River south of Lake Nakuru, Kenya, which preserves a long sequence of archaeological deposits which illustrate the precursors of the Pastoral Neolithic complex. A blade industry of the 11th millennium BC is regarded as a probable ancestor of the Eburran (Gambles's Cave).
cultural drift
CATEGORY: term
DEFINITION: A gradual cultural change due to the imperfect transmission of information between generations; it is analogous to genetic drift in biology.
drift
CATEGORY: geology
DEFINITION: Any debris transported or deposited by or from glacial ice and meltwater; a glacial deposit laid down by ice or water in glacial streams, lakes, or arctic oceans. The term 'drift' remains in common usage and includes alluvium, pro-glacial deposits, till, and ice-contact stratified drift.

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