geologic system

Japanese: geologic system(英語表記)geologicsystem
geologic system

...For the history of the solar system from the birth of the solar system to the beginning of the geological era, please refer to the Earth entry.
[geologic system]
There are three methods for arranging the events that have occurred on Earth during geological time in chronological order and weaving together the history of the Earth. The first method uses the principle that radioactive elements contained in the minerals that make up rock strata decay at a constant rate to determine how long ago a rock was formed, that is, to measure its geological age.

*Some of the terminology explanations that mention "geologic system" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…なお,太陽系の誕生から地質時代に入るまでの歴史については〈地球〉の項目を参照されたい。
【地質系統geologic system】
 地質時代に地球に起こった現象を時間の順序に並べ地球の歴史を編んでいくためには三つの方法がとられる。第1は,岩層を構成している鉱物に含まれた放射性元素が一定の速度で壊変する原理を利用して,岩石が何年前にできたかを,つまり地質年代を測定する。…

※「geologic system」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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>>:  geological succession

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