地殻 ちかく均衡 きんこう せつじゃありませんでした
chikaku kin kōsetsujārimasendeshita

Noun
Desu Copula

The polite, past negative form of 地殻均衡説

1. It wasn't the theory of isostasy.

Past/Perfective
Negative
Polite
Terminal Form
Geology