| FullText URL | esr_025_contents.pdf |
|---|---|
| Publication Title | Okayama University Earth Science Report |
| Published Date | 2018-12-27 |
| Volume | volume25 |
| Issue | issue1 |
| ISSN | 1340-7414 |
| language | Japanese |
| Copyright Holders | © 2018 by Okayama University Earth Science Reports Editorial Committee All Rights Reserved |
| File Version | publisher |
| FullText URL | esr_025_colophon.pdf |
|---|---|
| Publication Title | Okayama University Earth Science Report |
| Published Date | 2018-12-27 |
| Volume | volume25 |
| Issue | issue1 |
| ISSN | 1340-7414 |
| language | Japanese |
| Copyright Holders | © 2018 by Okayama University Earth Science Reports Editorial Committee All Rights Reserved |
| File Version | publisher |
| JaLCDOI | 10.18926/ESR/56695 |
|---|---|
| FullText URL | esr_025_039_048.pdf |
| Author | Knittel, Ulrich| Walia, Monika| Suzuki, Shigeyuki| Lee, Yuan-Hsi| |
| Abstract | The high-P/low-T Sanbagawa Metamorphic Belt that traverses SW Japan, has been subdivided into two belts thought to have been metamorphosed at ca. 120 Ma and at ca. 65 Ma (‘Sanbagawa Metamorphic Rocks’ and ‘Shimanto Metamorphic Rocks’). The subdivision was based on the assumption that metamorphism occurred at ca. 116 Ma, largely based on an early Rb-Sr isotope study and zircon data obtained for the eclogite unit of the Sanbagawa Belt, whereas in some parts of the belt detrital zircons of late Cretaceous age (90-80 Ma) were discovered. Analysis of detrital zircons sampled from two sites within the area considered to expose the older ‘Sanbagawa Metamorphic Rocks’, including the area investigated by the Rb-Sr study, reveals the presence of zircons younger than 95 Ma in all samples and some grains as young as 80 ± 4 Ma. It is therefore concluded that the Sanbagawa Belt is one single tectonic entity that formed in the Late Cretaceous though it contains older components, including fossiliferous clasts, older basic meta-volcanics and eclogite units that may record earlier metamorphic events. |
| Keywords | U-Pb zircon dating Sanbagawa Metamorphic Belt Late Cretaceous Asemi River |
| Publication Title | Okayama University Earth Science Report |
| Published Date | 2018-12-27 |
| Volume | volume25 |
| Issue | issue1 |
| Start Page | 39 |
| End Page | 48 |
| ISSN | 1340-7414 |
| language | English |
| Copyright Holders | © 2018 by Okayama University Earth Science Reports Editorial Committee All Rights Reserved |
| File Version | publisher |
| JaLCDOI | 10.18926/ESR/56694 |
|---|---|
| FullText URL | esr_025_031_038.pdf |
| Author | Amano, Hideki| Suzuki, Shigeyuki| Sato, Masaru| Yanagida, Makoto| |
| Abstract | The study area is situated in Japan Sea side margin of the Shakotan Peninsula, Hokkaido, Japan, where MIS5e Terrace is preserved along the cost. Numbers of tight drilling have done to establish new method for terrace analysis. Buried wave cut terrace and sea cliff (when the MIS5e Terrace was formed) are reconstructed by distribution of the terrace deposits and these bottom of unconformity planes. The precise site and altitude of former shoreline was also obtained. Altitudes of the former shoreline from the 7 sections are almost the same 22 to 27m in height. Previous data of the height of shoreline are obtained from the topographic MIS5e Terrace surface. The altitudes have variation from 30m to 60m. It suggests that the traditional method for the MIS5e terrace analysis had some errors in the study area. |
| Keywords | MIS5e marine terrace terrace deposits tight drilling shoreline |
| Publication Title | Okayama University Earth Science Report |
| Published Date | 2018-12-27 |
| Volume | volume25 |
| Issue | issue1 |
| Start Page | 31 |
| End Page | 38 |
| ISSN | 1340-7414 |
| language | English |
| Copyright Holders | © 2018 by Okayama University Earth Science Reports Editorial Committee All Rights Reserved |
| File Version | publisher |
| JaLCDOI | 10.18926/ESR/56693 |
|---|---|
| Title Alternative | Development of an interdisciplinary study plan on the seasonal transition from autumn to winter around the Japan Islands (Through the lesson study at junior high school with attention to the shallow convective rainfall “Shi-gu-re” in the cold air outbreak situations in early winter) |
| FullText URL | esr_025_019_030.pdf |
| Author | Kato, Kuranoshin| Nishikawa, Sari| Nakakura, Toshimi| |
| Abstract | An interdisciplinary study plan on the seasonal transition from autumn to winter around the Japan Islands and the “seasonal feeling” associated with the shallow convective rainfall “Shi-gu-re” in that stage expressed in the Japanese classic poems called “Wa-ka” was developed, through a lesson study at junior high school. In that study plan, special attention was paid to the seasonal evolution of the larger-scale systems from autumn to winter, such as the Siberian air mass and the Siberian high, and the relation to the cold air intrusion into the Japan Sea and the Japan Islands. According to the analysis of the lesson practice results, students seem to understand that the winter-type weather pattern becomes dominant around November, together with the features of the intermittent rainfall in the winter-type pressure pattern called “Shi-gu-re” expressed in the “Wa-ka”. However, necessity of further improvement of the study plan was pointed out, so that the students can understand more exactly the role of the seasonal development of the Siberian high and Siberian air mass in the climate around the Japan Islands. |
| Keywords | Interdisciplinary collaboration between climate and cultural understanding education Climate environment around Japan Transition from autumn to winter around Japan “Seasonal feeling” in early winter expressed in the Japanese classic literature ESD |
| Publication Title | Okayama University Earth Science Report |
| Published Date | 2018-12-27 |
| Volume | volume25 |
| Issue | issue1 |
| Start Page | 19 |
| End Page | 30 |
| ISSN | 1340-7414 |
| language | Japanese |
| Copyright Holders | © 2018 by Okayama University Earth Science Reports Editorial Committee All Rights Reserved |
| File Version | publisher |
| JaLCDOI | 10.18926/ESR/56692 |
|---|---|
| Title Alternative | Synoptic climatological analyses on the large day-to-day variation of air temperature around Germany in winter (Relating to the “seasonal feeling” in “Fasnacht”, the festival for driving the winter away) |
| FullText URL | esr_025_007_017.pdf |
| Author | Hamaki, Tatsuya| Kato, Kuranoshin| Otani, Kazuo| Kato, Haruko| Matsumoto, Kengo| |
| Abstract | Synoptic climatological analyses associated with the large day-to-day variation of air temperature around Germany in winter were performed based mainly on the NCEP/NCAR reanalysis data for 2000/2001 to 2010/2011 winters, with an interest in the relationship to the “seasonal feeling” in “Fasnacht”, the festival for driving the winter away. The intermittent appearance of the extremely cold days with rather large day-to-day variation in winter as pointed out by Kato et al. (2017) for around Germany was seen also to the north and to the east of Germany. According to a case study for the 2000/2001 winter, such large daily mean temperature fluctuation was closely related to the intraseasonal variation of the Icelandic low with about one month period, i.e., while the temperature around Germany was relatively higher at the eastward shift phase of the Icelandic low due to the strong warm air advection by the SW-ly wind, the temperature was extremely low there when the Icelandic low was weakened and retreated westward. |
| Keywords | Comparative climatology Climate around Europe Synoptic climatology on daily temperature variation in winter around Germany seasonal cycle and “seasonal feeling” |
| Publication Title | Okayama University Earth Science Report |
| Published Date | 2018-12-27 |
| Volume | volume25 |
| Issue | issue1 |
| Start Page | 7 |
| End Page | 17 |
| ISSN | 1340-7414 |
| language | Japanese |
| Copyright Holders | © 2018 by Okayama University Earth Science Reports Editorial Committee All Rights Reserved |
| File Version | publisher |
| JaLCDOI | 10.18926/ESR/56691 |
|---|---|
| Title Alternative | Non-calcareous beachrock found in Akagurisaki, Ohi Town, Fukui Prefecture |
| FullText URL | esr_025_001_005.pdf |
| Author | Suzuki, Shigeyuki| Azuma, Yoichi| Deyama, Yasuyo| Yukawa, Hirokazu| Usui, Mayumi| |
| Abstract | Beachrock which was formed about 0.5 meter higher than high tide is found in Akagurisaki, Ohi Town, Fukui Prefecture. The outcrops always get wet by spring water. The sediments are composed of well sorted rounded gravels and sands but calcareous shell is not found at all. Intergranular space is occupied by white amorphous cement. Magnesium and silicon rich composition of the cement is obtained by EPMA analysis. There is a conjecture that the magnesium rich cement was precipitated in spite of solution of calcareous shell under saturated state by spring water, because calcium has a higher tendency to ionize than magnesium. |
| Keywords | Beachrock Akagurisaki non-calcareous cement ionization tendency |
| Publication Title | Okayama University Earth Science Report |
| Published Date | 2018-12-27 |
| Volume | volume25 |
| Issue | issue1 |
| Start Page | 1 |
| End Page | 5 |
| ISSN | 1340-7414 |
| language | Japanese |
| Copyright Holders | © 2018 by Okayama University Earth Science Reports Editorial Committee All Rights Reserved |
| File Version | publisher |
| FullText URL | esr_025_titlepage.pdf |
|---|---|
| Publication Title | Okayama University Earth Science Report |
| Published Date | 2018-12-27 |
| Volume | volume25 |
| Issue | issue1 |
| ISSN | 1340-7414 |
| language | English |
| Copyright Holders | © 2018 by Okayama University Earth Science Reports Editorial Committee All Rights Reserved |
| File Version | publisher |
| FullText URL | esr_025_cover.pdf |
|---|---|
| Publication Title | Okayama University Earth Science Report |
| Published Date | 2018-12-27 |
| Volume | volume25 |
| Issue | issue1 |
| ISSN | 1340-7414 |
| language | English |
| Copyright Holders | © 2018 by Okayama University Earth Science Reports Editorial Committee All Rights Reserved |
| File Version | publisher |
