@article{oai:u-ryukyu.repo.nii.ac.jp:02006924,
 author = {渡久山, 章 and 兼島, 清 and Tokuyama, Akira and Kaneshima, Kiyoshi},
 issue = {14},
 journal = {琉球大学理工学部紀要. 理学編, Bulletin of Science & Engineering Division, University of Ryukyus. Mathematics & natural sciences},
 month = {Apr},
 note = {Degree of calcium carbonate saturation in natural waters on OKINAWA has been measured and calculated to clear mechanisms of deposition and diagenesis of carbonate sediments. 1 ) The streams, underground waters, and springs in intimate contact with carbonate sediments were almost saturated with CaC0_3. While the streams which were not contact with carbonate sediments were considerably undersaturated with CaC0_3. 2) The springs which flow out after passed through the layer of carbonate rocks contain more CO_2 than waters which are in equilibrium with atmosphere. 3) The larger quantity of waters of springs which flow out after passed through the layer of carbonate rocks, the higher degree of CaC0_3 saturation and concentration of calcium ions in springs., 紀要論文},
 pages = {46--60},
 title = {天然水における炭酸カルシウムの飽和度},
 year = {1971}
}