Ground Penetrating Radar Survey at Emory Grove Cemetery

Abstract

Research Objective: The objective of this survey is to use a non-invasive method to determine if and where unmarked graves may be at the Emory Grove Cemetery. Current redevelopment proposals require the Montgomery County Planning Department to be aware of the indistinctive burial sites to prevent disturbing the graves during construction. The Emory Grove United Methodist Church officials would also like to know their locations to properly identify the graves and to determine whether the cemetery must be shut down or if there is space for further burials.

Geological Context: The Maryland Geological Survey cross section in Figure 1 shows the site lies above the Mather Gorge Formation, placed during the Lower Cambrian and/or Neoproterozoic period. This more than 800 feet continuous formation of quartz-mica schist interlayered with quartzitic metagraywacke is near the Blockhouse Point Fault, an unknown fault type. While the metagraywacke is subordinate, it is more visible as it has a higher resistance to weathering than the dominant schist [1].