Radiometric age of lava flows of the Enrei ｆormations in central Japan (1).
スポンサーリンク
概要
- 論文の詳細を見る
Two samples from lava flows of the upper member of the Lower Enrei formations exposed at the top of Utsukushi-ga-hara volcano are dated approximately at 1.3 × 10v K-A years. The dates of these lava flows which are magnetized reversely and eastward are placed in the middle part of the Matuyama reversed epoch. The Ina formations equivalent of the Lower member of the Lower Enrei formations suggest that during this period climatic deterioration had already taken place, so that most parts of the Enrei formations should be younger than the base of the Pleistocene.
- 信州大学理学部の論文
- 1967-03-15
信州大学理学部 | 論文
- 中部山岳地帯乗鞍岳の微環境
- 生育高度を異にした2・3幼植物の生長量
- 北部フォッサマグナの新第三系内村層から産出した浮遊性有孔虫化石
- 長野県諏訪湖北方の新第三系横河川累層の中新世放散虫化石
- 松本盆地南部と伊那谷における小坂田ローム層中の浮石層 : 松本盆地の形成過程に関する研究(2)