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Water geochemistry of the Wewak region, East Sepik Province, Papua New Guinea
http://hdl.handle.net/10232/15579
http://hdl.handle.net/10232/15579460458f4-fac2-4026-85bc-85865e7fb25e
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
AN10088628_v15-1_P1-7.pdf (658.1 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2013-01-22 | |||||
| タイトル | ||||||
| タイトル | Water geochemistry of the Wewak region, East Sepik Province, Papua New Guinea | |||||
| タイトル言語 | en | |||||
| 著者 |
根建, 心具
× 根建, 心具× 井上, 晃男× 田口, 幸洋 |
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| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Geochemistry | |||||
| キーワード | ||||||
| 主題言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Hot spring water | |||||
| キーワード | ||||||
| 主題言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Wewak | |||||
| キーワード | ||||||
| 主題言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Papua New Guinea | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| 要約 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | Geochemistry of the hot spring, meteoric and sea waters in the Wewak region, East Sepik Province, Papua New Guinea, was preliminarily described. δ D and δ <18>^O of the groundwater in this region are -41.1‰ and -6.5‰, respectively. The river water is much lighter. They are well on the meteoric water line (CRAIG, 1961). δ D of the hot spring water in Kairiru Island is -20.0‰, and the Cl- content is 9630 mg/l. The data suggest that the hot spring water originated from the 1:1 mixture of the meteoric water and sea water in this region. Mg^<2+> and SO_4^<2-> were found strongly depleted from the original mixed water. Na^<+> and K^<+> were moderately removed to low concentration. Ca^<2+> was leached from rocks and resulted in the high concentration in the water. Removal of Mg^<2+> and other cations from the hot spring water was supplimented largely by leaching of Ca^<2+> from rocks. However, the δ <18>^O shift by water-rock interaction is not observed. The water temperature at the depth might be about 140°C, and the similarity of δ <34>^S between the hot spring water and sea water suggests that the water-convection was performed under oxidation condition. It is suggested that both sea water and meteoric water were mixed together with the ratio of about 1:1, that the mixed water reacted mainly with the surrounding beach rock at shallow depth, and that the rate of water-rock interaction was not so high to shift the δ <18>^O, or the water/rock ratio was rather high not to affect the δ <18>O value. |
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| 内容記述言語 | en | |||||
| 収録雑誌名 |
ja : 南太平洋研究 en : South Pacific Study 巻 15, 号 1, p. 1-7, 発行日 1994-11-20 |
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| 作成日 | ||||||
| 日付 | 1994-11-20 | |||||
| 日付タイプ | Issued | |||||
| ISSN | ||||||
| 収録物識別子タイプ | PISSN | |||||
| ISSN | 09160752 | |||||
| NII書誌ID（雑誌） | ||||||
| 収録物識別子タイプ | NCID | |||||
| NC ID | AN10088628 | |||||
| 出版タイプ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| NDC | ||||||
| 主題Scheme | NDC | |||||
| 主題 | 450 | |||||
| 公開者・出版者 | ||||||
| 出版者 | 鹿児島大学 | |||||
| 出版者言語 | ja | |||||
| 公開者・出版者 | ||||||
| 出版者 | Kagoshima University | |||||
| 出版者言語 | en | |||||
