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1.

論文(リポジトリ)

論文(リポジトリ)
佐藤, 修 ; 青木, 滋 ; 鈴木, 幸治 ; Sato, Osamu ; Aoki, Shigeru ; Suzuki, Koji
出版情報: 新潟大学積雪地域災害研究センター研究年報.  11  pp.59-71,  1989-12.  新潟大学積雪地域災害研究センター
URL: http://hdl.handle.net/10191/39112
概要: Groundwater samples, river water and rain water for chemical analysis were collected from landslide areas in the Changjiang valley during autumn of 1987. Electrolite concentrations of groundwater from the landslide area was higher than from that of the Changjiang river water. The main constituents of groundwater was alkaline earth hydrogencarbonate in many samples reflecting the geology of the investigation area. Sulfate and chloride ions were minor constituents. The existence of those minor ions indicates that the some spring water in the landslide originated from the deep groundwater in the investigation area. 続きを見る
2.

論文(リポジトリ)

論文(リポジトリ)
佐藤, 修 ; 青木, 滋 ; 鈴木, 幸治 ; 仲川, 隆夫 ; 橋本, 哲夫 ; Sato, Osamu ; Aoki, Shigeru ; Suzuki, Koji ; Nakagawa, Takao ; Hashimoto, Tetsuo
出版情報: 新潟大学積雪地域災害研究センター研究年報.  11  pp.49-57,  1989-12.  新潟大学積雪地域災害研究センター
URL: http://hdl.handle.net/10191/39114
概要: Some spring water (50 samples) was collected from the landslide areas in the Chanjiang (Yantse) valley, and river water was sampled from the Chanjiang river and its branches. Two rain water samples (Nov. 2, 1987) were collected in Huepai district. The conventional measurements of low level tritium were carried out by using liquid scintillation counting. Spring water varied from 0.22 to 6.73 Bq/l (mean value 3.09+1.18 Bq/l). and the Changjiang river water varies from 3.40 to 3.81 (Mean value 3.7+0.81 Bq/l).The rain water was 0.63 and 1.78 Bq/l. Water source of the rain water in this season was estimated as sea water after consideration of climatic conditions and the tritium concentration of sea water. Some ground water having high tritium concentrations was affected by precipitation contaminated by atmospheric nuclear explosion tests and a few low tritium concentration water was surely recharged before the artificial tritium addition. We concluded that the conventional measurements of low level tritium concentrations is very useful to estimate the ground water flow in the landslides in China. 続きを見る