While lithic analysts remain uncertain about which variables provide meaningful information about the reduction sequence
, the most robust claims about this sequence can be made when several variables show the same directional change (Odell 2000:291, Pelcin 1997, Shott et al.
A reduction sequence
investigates how stone artefacts were made through the identification of different manufacturing stages.
Although the specific details of the reduction sequence
may differ from one feature to another at Giv'at Kipod, several common trajectories for the production of bifacial tools at the site can be discerned.
A recently excavated archaeological assemblage from McKinley Bay, Northwest Territories, provides a record of intensive Nuvugarmiut whale bone tool manufacture, which can be used to reconstruct a reduction sequence
They can be used in "expert mode," where the user specifies the reduction steps, or in "black box mode," where the reduction sequence
is determined automatically.
Applying a detailed debitage classification system to define closely the reduction sequence
at Jebel Humeima, Coinman reattributes the assemblage to Akhmarian, replacing an earlier Aurignacian attribution, obviously a major realignment, given the dichotomy usually perceived between the two.
If the subtree can be shifted in the new context, O(lg N) time is also consumed in reconstructing its trailing reduction sequence
This paper constructs a reduction sequence
model for north Australian points from the eastern Victoria River region, and identifies a single continuum linking unifacial and bifacial point forms, with some divergence from this single reduction trajectory dependent upon artefact size.
Clarkson (Chapter 3) demonstrates that reduction intensity provides a parsimonious explanation of scraper form; and that the typology of scraper classes does not effectively describe the actual reduction sequence
The reduction sequence
which created the assemblage is modeled and the rigidity of the various trajectories comprising the reduction sequence
is assessed by the degree to which blanks for "aimed at" forms crossed between trajectories.
This paper proposes a reduction sequence
for `scrapers' found at Ingaladdi rocksheiter, Northern Territory.