2019 Volume 72 Issue 1 Pages 17-30
Hyogo Prefectural Amagasaki Oda High School is located in the southeast of Hyogo Prefecture, with Osaka Bay about 5 km away in the southwest direction. Prior to the construction of the school, a ground survey was carried out and several samples of geological specimens were stored in sample tubes. In order to examine the sedimentary environment, the amount of sulfur contained in each sample was measured quantitatively. For sulfur analysis, the turbidimetric method was used. Marine mud sediments generally contain 3 mg/g or more of sulfur. During the analysis it became clear that the usefulness of an index value on sulfur content is very high. By comparing the results of the sulfur analysis with the characteristics of the geological columnar section, the changes in the sedimentary environment were clarified in greater detail. By conducting sulfur analyses, ground survey samples at schools could be effectively utilized as educational materials.
