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The hammer is
hanging at the level D of Folsom man! The bones and artifacts are still
in position. This is the record before excavation. |
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Bone
in plaster with projectile point |
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On
this level, stone spear points (projectile points) lay next to very
large animal bones. These people used the spear points to kill mammoths
and Bison antiquus. Because archaeologists knew that these very
large animals (or megafauna) were extinct by the end of the Pleistocene
era, they could infer that people hunted at Blackwater Draw about 13,000
years ago. |
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Close
observation of the different rock and sediment layers (the stratigraphy)
allowed Glen to produce sections such as the one below |
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This
diagram illustrates how one site can be correlated with another,
if careful geological records of the stratigraphy are made. Here
Glen is connecting a site in Lubbock with one in Clovis, New
Mexico. By following this procedure for other sites in the area,
Glen was able to map the activity of early man in this part of
Texas. |
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