In situ or reworked? micromorphological evidence for mixing processes in shelter secuences of the Iberian Peninsula and Northern Morocco.

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2014Department
Historia, Geografía y FilosofíaSource
ABSTRACTS. XVII Congreso UISPP.Abstract
The formation of palimpsests involves phases of
strongly reduced sediment accumulation, partial
sediment erosion or sediment mixing by bioturbation,
cryoturbation, peloturbation or processes of mass movement along a slope. Humans may also cause mixing
by differential trampling, raking out of fire residues or
dung and levelling of dwelling floors. Generally, mixing
processes cause problems in age determination of
archaeological sequences resulting in age inversion or
unexpectedly young ages. Micromorphology provides
an important tool to identify mixing processes and clarify
site formation in order to set up more reliable (chrono-)
stratigraphic frameworks of shelter deposits. In addition,
the first step to identify and disentangle Palimpsests is to
evaluate mixing processes.