この岩壁は田辺層群上部層の厚い砂岩と礫岩の地層からなり、礫岩の部分に「虫喰い」風化がよく見られます。岩壁には多数の凹みが蜂の巣状に密集しています。この蜂の巣状の風化はタフォニと呼ばれ、地層中の塩類の溶解と析出によってできたと考えられています。

This rock wall consists of thick sandstone and conglomerate formations in the upper part of the Tanabe Group, and "insect-eating" weathering is often seen in the conglomerate part. Many dents are densely packed in the rock wall like a honeycomb. This honeycomb-like weathering is called tafoni and is thought to have been caused by the dissolution and precipitation of salts in the formation.

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うえもり　う 2022/01/20(Thu) 22:26 No.206

Re: 白浜町・マップ３２：W13　保呂の虫喰岩

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