...In modern terms, the idea is that the crust floats on the mantle. In contrast, J.H. Pratt (1811-71) believed that the density of the material that makes up high mountains is lower than that of the material that makes up low mountains, and that the depth of the interface between the mountain body and the material that keeps it floating is constant everywhere (Figure 1). Today, based on knowledge gained from the propagation of seismic waves and experiments with artificial earthquakes, Airy's model is closer to reality. *Some of the terminology that mentions "Pratt, JH" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…現代的な言い方をすれば,地殻はマントルの上に浮いているという考え方である。これに対してプラットJ.H.Pratt(1811‐71)は,高い山を構成する物質の密度は低い山を構成する物質の密度にくらべて小さく,山体とそれを浮かせている物質との境界面の深さはどこでも一定と考えた(図1)。今日,地震波の伝わり方や人工地震の実験から得られる知見によれば,エアリーのモデルが実際の姿に近い。… ※「Pratt,J.H.」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 |
<<: "Pratique du théâtre" (English: Pratique du théâtre)
…The valley between Mount Fuji and the Misaka mou...
A celestial body that moves around a planet or ot...
A powerful clan in Shimousa in the Middle Ages. I...
…In the case of a weak contraction, only a small ...
…From the floor, the height of the tragus (up to ...
...Snow geta, which are used for walking on light...
...The name "music synthesizer" was fir...
〘Noun〙 The sea in the east. The East Sea. Also, by...
The remains of a circular city from the Sassanid E...
...The common bean, native to South America, is a...
〘Noun〙 The hall where the Jōgyō-samai is practiced...
This is called electron spin resonance, also known...
…The dinoflagellate Ceratium hirundinella is dist...
…They ruled over a territory in Iran comparable t...
A lute-type plucked string instrument found in th...