Frank Markewicz, geologist in the State Department of Conservation and Economic Development, and others study the 7 mile long zone of NE/SW trending rock that contains small quantities of monzonite in Chester and Washington Townships.
Summary
Frank Markewicz, geologist in the State Department of Conservation and Economic Development, and others study the 7 mile long zone of NE/SW trending rock that contains small quantities of monzonite in Chester and Washington Townships.
