Geoarchaeology
By understanding the geological formation of the zones at a site, archaeologists can better explain how and why Native groups repeatedly used certain localities. Geological research at Longworth-Gick indicated that before humans occupied the site, the Ohio River frequently flooded the site locale. These floods carried large amounts of sediment that eventually settled. Over time, these flood-deposited sediments gradually built up to form a low ridge that was less affected by floods.
Around the time the first Early Archaic hunter-gatherer arrived in the area, floods became less frequent and carried with them less sediment. Hunter-gatherer encampments created occupational zones on the low ridge.
Even though floods became less frequent, however, they continued to occur. The sediments deposited by these floods created soil zones at the site. This pattern of occupational zones/flood-deposited zones continued for several thousand years.
Sites like Longworth-Gick are very important to archaeologists. The zones represent sealed Native occupations that reflect repeated site use by humans over a long time.