岡山大学 地球科学研究報告
Published by Okayama University Earth Science Reports Editorial Committee

横浜町に発達する段丘に地形と堆積物

Miyawaki, Akiko
Thumnail ESR_5_1.pdf 586 KB
Abstract
Higher, middle and Lower Terraces (Quaternary) have been distinguished in Yokohama Town, Aomori Prefecture. The Higher Terraces are subdivided into three terraces, H1,H2 and H3. They are distributed in hills. H1 and H2 deposites are composed of gravels of fan deposits. H3 deposits are composed of gravels, sands and mud of alluvial plain deposits. The Middle Terraces are subdivided into three terraces, M1, M1' and M2, and occupy almost all terraces in Yokohama Town. These deposits are composed of beach (sand with gravel) and fan (gravel) deposits. The Lower Terraces are subdivided into two terraces, L1 and L2. The L1 Terrace is distributed in limited area along coast and thought to be composed of beach deposits. The L2 Terrace is distributed in limited area along river and composed of braided stream deposits.
Keywords
terrace
beach deposits
fan deposits
Quaternary
ISSN
1340-7414
NCID
AN10506284