Adirondack Rocks - Adirondack Rocks

Japanese: アディロンダック岩体 - あでぃろんだっくがんたい
Adirondack Rocks - Adirondack Rocks

...As a result of the Apollo lunar exploration, it was found that the rocks that make up the lunar highlands are anorthosite, and it is believed that they played an important role in the early crust formation of the Earth and the Moon. On Earth, there are three types: (1) those that occur as a member of a layered differentiated rock body such as the Bushveld intrusion in South Africa, (2) those that occur as large batholithic masses (for example, the Adirondack body in North America), and (3) those that occur as layers in high-grade metamorphic rocks of early Precambrian age (such as the Fiskenesset body in Greenland). Those of type (3) are similar to the anorthosites of the Moon in terms of their formation age and chemical composition. ...

*Some of the terminology used to refer to the "Adirondack Body of Rock" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…アポロ計画による月探査の結果,月の高地を構成する岩石は斜長岩であることがわかり,地球や月の初期の地殻形成に重要な役割をもっていたと考えられている。地球上には,(1)南アフリカのブッシュフェルト貫入岩体のような層状分化岩体の一メンバーとして産するもの,(2)大きな底盤状塊状岩体として産するもの(たとえば北アメリカのアディロンダック岩体),(3)先カンブリア時代初期の高度変成岩中に層状に産するもの(グリーンランドのフィスケネセト岩体など)の三つのタイプがある。(3)のものは,形成年代,化学組成などの点で月の斜長岩と類似している。…

※「アディロンダック岩体」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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