Name/Title
S02.05.016Description
David A. Stith doing using the differential thermal analysis equipment. Used to help identify clay minerals. The control unit with XY measures temperature differences as sample is heated and loss of water. It also measures endrothermic and exothermic reactions. David worked in the Regional Geology Section of the Ohio Geological Survey. This picture was taken in the geochemistry laboratory at the Grandview Avenue Offices in 1970. The Ohio Department of Natural Resources, Division of Geological Survey's main office was located at 1207 Grandview Avenue, Grandview Heights, Ohio 43212 from 1962 through May 1973. The Geological Survey's offices were on part of the first floor and the entire second floor of the building. The Grandview office had x-ray, petrography, and geochemistry laboratories on the first floor. More informally, rooms with coal polishing equipment, microscopes, and other types of equipment were located in various spaces at the Grandview office.
This slide image included in the USGS National Digital Catalog for NGGDPP Grant G15AP00115 in FY2015.Context
Man turning knob on a machine; other machines surround his work area. Laboratory at the Grandview Heights office in Ohio.