English Dictionary

isostasy

/ʌɪˈsɒstəsi/

noun

(geology) The state of balance or pressure equilibrium thought to exist within the Earth's crust, whereby the upper lithosphere floats on denser magma beneath.

Isostasy is the equilibrium of the Earth's crust floating on the denser mantle below.

意味（1）

(geology) The state of balance or pressure equilibrium thought to exist within the Earth's crust, whereby the upper lithosphere floats on denser magma beneath.

The process of vertical movement, known as isostasy, was a foundation of geological belief for generations, though no-one had any really good theories as to how or why it happened.