Geological Specimen
| item | description | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| No. | GSJ R66189 | |||||||||
| Name | granodiorite, porphyritic Bt / はん状黒雲も花こうせん緑岩(斑状黒雲母花崗閃緑岩) | |||||||||
| Class | Rock Igneous rock / 岩石 火成岩 | |||||||||
| Location | Tsukuba Tonnel No.1 for Kasumigaura Irrigation Project, Ishioka, Ibaraki, Japan / 石岡市(旧:新治郡八郷町)霞ヶ浦用水筑波1号トンネル下口坑口から1665m | |||||||||
| topomap name | Makabe / 真壁 | |||||||||
| Original number | K1N-1665A | |||||||||
| Remark | S62.4.30(採)/with aplite and pegmatite dikes | |||||||||
| @id | https://gbank.gsj.jp/ld/resource/musee/R66189 | |||||||||
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