By Tabitha Hubbard
|Dr. Sauck conducting geophysical survey|
Today everyone was once again excited to get into the field. This morning Dr. William (Bill) Sauck of the Western Michigan University Department of Geosciences began conducting a geophysical survey of an unexplored area of the Fort site. Previously we cleared the area and placed stakes marking the perimeters of the survey site. We had two squares for the survey; one was 10 x 10 meters and the other 20 x 20 meters. Dr. Sauck conducted the survey with a magnetic gradiometer, which detects items with a magnetic reading under the surface. Some items that give off a magnetic reading are iron, fired pottery, and burned stones. Each member of the field school got the opportunity to assist with the survey. We marked out one-meter units across each square. Then Dr. Sauck walked the units with the gradiometer. He did get a few readings; one was specifically located near a tree. We will not know the exact details of the magnetic survey until the data is processed. He will prepare a map showing the results, which will help us to determine locations most likely containing features or large amounts of artifacts.
|Stone Projectile Point|