巻号一覧
6 巻 (1973)
- 1 号 p. 1-
6 巻, 1 号
選択された号の論文の4件中1～4を表示しています
- |<
- <
- 1
- >
- >|
報文
-
川口 浩1973 年 6 巻 1 号 p. 1-4
発行日: 1973年
公開日: 2016/11/05
ジャーナル フリーThe boron content of atmospheric fallout ignited was determined by the extraction followed by spectrophotometry. The relationship between boron content and wind direction, rainfall, calcium and magnesium contents was investigated, and the following results were obtained: (1) The boron content is greater with a northerly wind blowing than with a southerly wind. (2) The boron content is inversely proportional to rainfall. (3) The boron content is pro- portional to calcium content. (4) The boron and calcium contents are high from late autumn to winter, and low from summer to early autumn. (5) The boron content of atmospheric fallout ignited is related to the amount of illite in it.抄録全体を表示PDF形式でダウンロード (358K) -
鈴木 励子1973 年 6 巻 1 号 p. 5-9
発行日: 1973年
公開日: 2016/11/05
ジャーナル フリーThe DTA curves up to 1000℃ have been obtained for aragonite type travertines from different localities. From these curves the temperature of transition from aragonite to calcite (T1) and the temperature of thermal decomposition (T2) have been estimated. The temperature difference (T2-T1) ranges from 355℃ for travertine from Masutomi Hot Springs to 433℃ for travertine from Arima Hot Springs. Such considerable variation in T2-T1 may be related to the deposition temperature of travertines. A series of travertine samples, having a similar chemical composition, but differing in deposition temperature, were collected from Karematsuzawa, Geto Hot Springs. With lowering deposition temperature, T1 and T2-T1 decrease sensibly.抄録全体を表示PDF形式でダウンロード (422K) -
中村 誠佑, 北野 康, 飯田 修, 片岡 順1973 年 6 巻 1 号 p. 10-20
発行日: 1973年
公開日: 2016/11/05
ジャーナル フリーThe authors determined the chemical compositions of ground waters in the Higashi-Nomyo and Yumoto areas, which are well known to be a landslide area. The chemical compositions indicate the passages of ground waters. The result may be helpful to making a plan for the removal of ground waters to prevent the disaster from landslides. The chemical com- positions of the ground waters indicate that the chemical weathering is progressing under the ground of the areas to form clay materials through the interaction of carbon dioxidebearing waters with rock materials.抄録全体を表示PDF形式でダウンロード (855K) -
中村 誠佑, 北野 康, 神谷 始1973 年 6 巻 1 号 p. 21-27
発行日: 1973年
公開日: 2016/11/05
ジャーナル フリーAn earth flow occurred on 12th to 13th of July, 1972, in more than 3,000 locations in Obara-mura (area: 75km2), Nishimikawa of Aichi Prefecture. Water samples were taken from the earth flow area and analyzed for Na+, Ca2+, Mg2+, Cl-, HCO3-, SO42- and soluble SiO2. The concentrations of Ca2++Mg2+ and HCO3- were varied greatly from location to location, indicating the difference of the dissolution of Ca2++Mg2+ in waters from clay, sand and rock materials in the different areas. The chemical compositions of the waters indicate that the earth flow occurred only owing to a very heavy rain, and that in some locations a chemical weathering is progressing rather actively to form clay materials under the ground through the interaction of carbonated water with rock materials.抄録全体を表示PDF形式でダウンロード (434K)
- |<
- <
- 1
- >
- >|