Round rock - Round rock

Japanese: 円レキ岩 - えんれきがん
Round rock - Round rock

…In addition to the diameter of the pebble, the roundness and type of pebble can be used to determine the depositional environment and source area (supply area). Depending on the roundness of the pebble, it is also called round pebble rock, angular pebble rock, etc. [Tokuoka Takao]…

*Some of the terminology explanations that refer to "circular rock" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…レキ径のほかにレキの円磨度やレキ種を調べることによって堆積環境や後背地(供給地)を知ることができる。レキの円磨度によって円レキ岩,角レキ岩などとも呼ぶ。【徳岡 隆夫】。…

※「円レキ岩」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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