result 24394 件
| JaLCDOI | 10.18926/ESR/19849 |
|---|---|
| Title Alternative | ガーナ，アシャンティ火山帯南部に分布する古原生代変火山岩類のSr-Nd 同位体組成 |
| FullText URL | 016_009_028.pdf |
| Author | Dampare, Samuel| Shibata, Tsugio| Asiedu, Daniel| Okano, Osamu| Manu, Johnson| Sakyi, Patrick| |
| Abstract | Neodymium (Nd) and strontium (Sr) isotopic data are presented for Paleoproterozoic metavolcanic rocks in the southern part of the Ashanti volcanic belt of Ghana. The metavolcanic rocks are predominantly basalts/basaltic andesites and andesites with minor dacites. Two types of basalts/basaltic andesites (B/A), Type I and Type II, have been identified. The Type I B/A are stratigraphically overlain by the Type II B/A, followed by the andesites and the dacites. The analyzed volcanic rocks commonly have low initial (87)Sr/(86)Sr ratios consistent with previous studies on Paleoproterozoic rocks from the West African craton. The LREE-depleted, tholeiitic Type I B/A exhibit back-arc basin geochemical signatures and show high positive epsilon Nd (i.e., ε(Nd) (2.1 Ga) = +3.89 to +7.21), which suggest a long term depleted source and also indicate that they were produced in an entirely oceanic environment devoid of influence of continental crust. The isotope signatures are thus consistent with the previously published trace element data of the Type I basalts/basaltic andesites in suggesting that their parent magma was generated from a depleted mantle. The Type I B/A have Nd model ages (T(DM2)) of 1.83–2.09 Ga similar to their formation ages, suggesting that they were juvenile at their time of formation. The andesites and the Type II B/A andesites show LREE-enriched patterns and exhibit characteristics of subduction zone-related magmas, and show initial ε(Nd) (2.1Ga) values of –1.15 to + 1.35 and Nd model ages (T(DM2)) of 2.32–2.58 Ga. The LREE-enriched dacitic porphyry also exhibits characteristics of subduction zone-related magmas, and have initial ε(Nd) (2.1Ga) value of –2.24 and Nd model ages (T(DM2)) of 2.64 Ga. The Nd isotopic data confirms the juvenile character of the Birimian crust, but also suggests some contributions of a pre-Birimian crustal material (or Archean?) in the genesis of some of the metavolcanic rocks. Our isotopic result is consistent with the island arc complex model which views Paleoproteozoic terranes of West Africa in the context of subduction–accretion processes. |
| Keywords | Sr–Nd isotopes petrogenesis tectonic setting Birimian metavolcanics Ashanti volcanic belt |
| Publication Title | Okayama University Earth Science Report |
| Published Date | 2009-12-25 |
| Volume | volume16 |
| Issue | issue1 |
| Start Page | 9 |
| End Page | 28 |
| ISSN | 1340-7414 |
| language | English |
| Copyright Holders | 岡山大学地球科学研究報告編集委員会 |
| File Version | publisher |
| NAID | 120002308985 |
| JaLCDOI | 10.18926/ESR/19848 |
|---|---|
| Title Alternative | The first Japanese word "chishitsu-gaku" for the "geology" was proposed by Genpo Mitsukuri (1799-1863) |
| FullText URL | 016_001_007.pdf |
| Author | Okada, Hakuyu| Suzuki, Shigeyuki| |
| Abstract | The first Japanese word "chishitsu-gaku" for the "geology" was proposed by Genpo Mitsukuri, a scientific contributor in the Tokugawa regime in the 19th century, who was born in 1799 in Tsuyama in Western Honshu, Japan and had worked for scientific activities of the Tokugawa government from 1839 to 1863. His major works for the first making of the "chishitsu-gaku" for the "geology" have been presented in this paper, also showing his contribution to Japanese sciences. |
| Keywords | Genpo Mitsukuri "chishitsu-gaku" 19th century |
| Publication Title | Okayama University Earth Science Report |
| Published Date | 2009-12-25 |
| Volume | volume16 |
| Issue | issue1 |
| Start Page | 1 |
| End Page | 7 |
| ISSN | 1340-7414 |
| language | Japanese |
| Copyright Holders | 岡山大学地球科学研究報告編集委員会 |
| File Version | publisher |
| NAID | 120002309076 |
| Author | Yokota, K.| |
|---|---|
| Published Date | 1956-11-30 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume68 |
| Issue | issue11 |
| Content Type | Journal Article |
| Author | Yokota, K.| |
|---|---|
| Published Date | 1956-11-30 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume68 |
| Issue | issue11 |
| Content Type | Journal Article |
| Author | Kanda, M.| Honjoh, I.| Itasaka, T.| Tanaka, T.| Kobayashi, H.| |
|---|---|
| Published Date | 1956-11-30 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume68 |
| Issue | issue11 |
| Content Type | Journal Article |
| JaLCDOI | 10.18926/19842 |
|---|---|
| Title Alternative | ステロイド依存性重症難治性喘息に対する温泉療法の遠隔効果 |
| FullText URL | 061_001_006.pdf |
| Author | Tanazaki, Yoshiro| Sudo, Michiyasu| Kitani, Hikaru| Kawauchi, Kazuhisa| Mifune, Takashi| Okuda, Hiroyuki| Tada, Shinya| Takahashi, Kiyoshi| Kimura, Ikuro| |
| Abstract | The immediate effects (IEs) and distant effects (DEs) of spa therapy were observed in 67 patients with steroid- dependent intractable asthma (SDIA). (1) The IEs of spa therapy evaluated one week after spa therapy were considerably high, and the efficacy rate was 61.5% in type Ⅰa, 82.7% in type Ⅰb, and 83.4% in type Ⅱ asthmatics. (2) The DEs of spa therapy on SDIA were also observed. The efficacy rate was 50.2% in type Ⅰa, 54.3% in type Ⅰb and 63.7% in type Ⅱ asthmatics. (3) The DEs of spa therapy were different between cases with and without maintenance therapy (MT). The efficacy rate of DEs was generally high (72.8～91.7%) in cases with MT, and low (16.7～40.0%) in cases without MT. These results show that MT is very important to keep the IEs of spa therapy high for a long time. |
| Keywords | lmmediate effects (即時的効果) Distant effects (遠隔効果) Maintenance therapy (継続療法) Spa therapy (温泉療法) Steroid-dependent intractable asthma (ステロイド依存性重症難治性喘息) |
| Publication Title | 環境病態研報告 |
| Published Date | 1990-09 |
| Volume | volume61 |
| Start Page | 1 |
| End Page | 6 |
| ISSN | 09133771 |
| language | English |
| File Version | publisher |
| NAID | 120002309169 |
| Author | Nakanishi, Yoshio| |
|---|---|
| Published Date | 1956-11-30 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume68 |
| Issue | issue11 |
| Content Type | Journal Article |
| Author | Sugihara, Hiroshi| |
|---|---|
| Published Date | 1956-11-30 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume68 |
| Issue | issue11 |
| Content Type | Journal Article |
| Author | Sugihara, Hiroshi| |
|---|---|
| Published Date | 1956-11-30 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume68 |
| Issue | issue11 |
| Content Type | Journal Article |
| Author | Sugihara, Hiroshi| |
|---|---|
| Published Date | 1956-11-30 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume68 |
| Issue | issue11 |
| Content Type | Journal Article |
| Author | Hujioka, Yosiitu| |
|---|---|
| Published Date | 1956-11-30 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume68 |
| Issue | issue11 |
| Content Type | Journal Article |
| Author | Matsubara, Fumie| Endo, Hiroi| Sudo, Michiyasu| Tanizaki, Yoshiro| |
|---|---|
| Published Date | 1989-07 |
| Publication Title | 環境病態研報告 |
| Volume | volume60 |
| Content Type | Data or Dataset |
| Author | Hujioka, Yosiitu| |
|---|---|
| Published Date | 1956-11-30 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume68 |
| Issue | issue11 |
| Content Type | Journal Article |
| JaLCDOI | 10.18926/19834 |
|---|---|
| Title Alternative | Application of personal computer system in nursing division. -(1) Programming for a roster- |
| Author | Nakai, Mutsuo| Yoshida, Junko| Inagaki, Kikuko| |
| Publication Title | 環境病態研報告 |
| Published Date | 1989-07 |
| Volume | volume60 |
| Start Page | 103 |
| End Page | 107 |
| ISSN | 09133771 |
| language | Japanese |
| File Version | publisher |
| Author | Hujioka, Yosiitu| |
|---|---|
| Published Date | 1956-11-30 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume68 |
| Issue | issue11 |
| Content Type | Journal Article |
| Author | Hirose, Atsushi| |
|---|---|
| Published Date | 1956-11-30 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume68 |
| Issue | issue11 |
| Content Type | Journal Article |
| Author | Hirose, Atsushi| |
|---|---|
| Published Date | 1956-11-30 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume68 |
| Issue | issue11 |
| Content Type | Journal Article |
| Author | Otuski, Saburo| |
|---|---|
| Published Date | 1956-11-30 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume68 |
| Issue | issue11 |
| Content Type | Journal Article |
| Author | Ono, Yoshiaki| |
|---|---|
| Published Date | 1956-11-30 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume68 |
| Issue | issue10 |
| Content Type | Journal Article |
| Author | Umetani, Yoshihiro| |
|---|---|
| Published Date | 1956-10-31 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume68 |
| Issue | issue10 |
| Content Type | Journal Article |
