The resistivity survey was conducted with a Geoscan RM~15 Resistivity Meter w/ twin probe array at a sample density of 2 samples per meter at 1 meter traverses  (2s/sqm).  The remote probes were placed outside of the grid at least 20 m from the closest point on the grid.   The frame of the RM-15 was kept in the same orientation (facing north) during the survey even though a zig~zag pattern was followed.  This ensures that the source (C) probe and meter (P) probe are in the same quadrant of each square regardless of direction.

        The resistivity (or conductivity) of a given volume of soil is determined by the relative amount and type of materials that make up its matrix.  One of the most important of these constituents in terms of resistivity is moisture and therefore a soils permeability and porosity.  A soil with a high percentage of sand and/or gravel that drains quickly would register a higher resistivity, whereas a more clayey or silty soil will retain moisture, act as a conductor and register a much lower resistivity, its smaller grain size contributes to the conductivity by providing a higher probe contact surface area .

Data Collection: Resistivity

To contact us:

Dr Linda Barrett (Geography) ~ barrett@uakron.edu

Dr Timothy Matney (CSAA) ~ matney@uakron.edu

Dr Lisa Park (Geology) ~ lepark@uakron.edu

 

Study Area, Hopewell?: | The Geology of the Site | The Archaeology We are Looking For | Data Collection: Magnetometry | Data Collection: Resistivity | Data Processing: Magnetometry | Data Processing:Resistivity | Data Collection: Soil Sampling | Conclusions and Recommendations | Archaeo-Geo Links

RM~15 Resistivity Meter