| 作成者 |
|
| 本文言語 |
|
| 出版者 |
|
|
|
| 発行日 |
|
| 収録物名 |
|
| 巻 |
|
| 号 |
|
| 開始ページ |
|
| 終了ページ |
|
| 出版タイプ |
|
| アクセス権 |
|
| Crossref DOI |
|
| 概要 |
The geology and lithological and petrographical properties of the "Shirasu" in the northeastern part of the Aira volcanic region are described briefly in this paper. The refractive indices of the glas...s are 1.497-1.501, the chemical compositions of the pumice fragments are SiO_2 73, and the "median diameters" (Md) obtained by mechanical analysis (excluding large fragments > 4 mm) are 0.16-0.28mm. It is noticed that the "older pumice flow" differs from the "Shirasu" in distribution, contour lines for Md and petrographic properties, and its eruptive center seems to be found in the northern part of the Kirishima volcano.続きを見る
|
Mendeley出力
23_02_p295