13000 BP
Last glacial period
ends.
11,000 BP
Grass and woodlands
have expanded for
1,000 years. Village
established at Abu
Hureyra at 11,500 BP.
10,500 BP Colder, drier
conditions of the Younger
Dryas cause lack of
flowering fruiting, and
germination of new trees.
Oak trees die off around
Abu Hureyra
9,000 BP Return to
moister conditions allows
only a partial return of
vegetation. Area around
Abu Hureyra is not
recolonized by plants and
trees.
Soils processed with a froth flotation machine. Frothing agent
and kerosene added to aid flotation.
Abu Hureyra 1:
11,500 BP –
10,000 BP
Broad spectrum
foraging. Incipient
agriculture during
1b and 1c periods.
Abu Hureyra 2A
9,400 BP – 8,300 BP
Economy is
predominantly
agricultural