"景勝地である弁天島には、大潮の干潮には歩いて渡ることができます。弁天島とお蛇浦南端の海岸には緩く傾いた熊野層群の地層があり、小規模な断層や褶曲のほか、生痕化石などが見つかります。お蛇浦遊歩道の入口付近には、地層内部で大規模な液状化・流動化が起り、地下から周囲の岩石を取り込みながら上昇してできた泥ダイアピルがあります。この場所では熱水活動の痕跡も観察されます。

"Bentenjima, a scenic spot, can be walked to the low tide of the spring tide. There is a gently sloping Kumano Group on the coast of Bentenjima and the southern tip of Hebiura, with small faults and folds. In addition, trace fossils can be found. A large-scale liquefaction and fluidization occurs inside the stratum near the entrance of the Ojaura promenade, and the mud diapill that rises while taking in the surrounding rocks from the underground. There are also traces of hydrothermal activity in this area.

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うえもり　う 2022/01/20(Thu) 15:13 No.120

Re: 那智勝浦町・マップ５７：E9　弁天島とお蛇浦

"Bentenjima, a scenic spot, can be walked to during low tide. There is a gently sloping rock formation of the Kumano Group on the coast of Bentenjima and the southern tip of Ojaura, with small faults and folds. In addition, trace fossils can be found. A large-scale liquefaction and fluidization occurs inside the stratum near the entrance of the Ojaura promenade, and the mud diapir that rises while taking in the surrounding rocks from the underground. There are also traces of hydrothermal activity in this area.
ジョシュアの編集

ジョシュア 2022/09/09(Fri) 18:54 No.324

Re: 那智勝浦町・マップ５７：E9　弁天島とお蛇浦

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