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| ファイル | 記述 | サイズ | フォーマット | |
|---|---|---|---|---|
| j.apgeochem.2014.02.013.pdf | 699.87 kB | Adobe PDF | 見る/開く |
| タイトル: | Effects of terrigenic He components on tritium–helium dating: A case study of shallow groundwater in the Saijo Basin |
| 著者: | Mahara, Yasunori Ohta, Tomoko Morikawa, Noritoshi Nakano, Takanori Tokumasu, Minoru Hukutani, Satoshi Tokunaga, Tomochika Igarashi, Toshifumi |
| 著者名の別形: | 馬原, 保典 |
| 発行日: | Nov-2014 |
| 出版者: | Elsevier Ltd. |
| 誌名: | Applied Geochemistry |
| 巻: | 50 |
| 開始ページ: | 142 |
| 終了ページ: | 149 |
| 抄録: | Dating using a combination of 3H and 3He is believed to be the most practical method for estimating the short residence time of shallow groundwater. However, this method must estimate tritiogenic 3He alone and tends to overestimate the residence time of groundwater, if terrigenic 3He from the mantle cannot be excluded from the total dissolved 3He. We demonstrate the exclusion of terrigenic 3He in the Saijo Basin, where mantle He is easily released along the major active fault, Median Tectonic Line. The 3He/4He ratios suggest that the west bank of the Kamo River, which lies within the basin, has experienced greater emanations of mantle He than the east bank. We estimate the residence times to be 1.1–96 years by the proposed exclusion method. |
| 著作権等: | © 2014 Elsevier Ltd. NOTICE: this is the author's version of a work that was accepted for publication in Applied Geochemistry. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Applied Geochemistry, 50(2014) doi:10.1016/j.apgeochem.2014.02.013 This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 |
| URI: | http://hdl.handle.net/2433/196859 |
| DOI(出版社版): | 10.1016/j.apgeochem.2014.02.013 |
| 出現コレクション: | 馬原 保典 |
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