安あん定てい大たい陸りく

あ

ん

て

い

た

い

り

く

Meanings

1

stabilized continent; platform

Geology term for a stable continental region, often used in the context of cratons or continental platforms.

い

地ち

質しつ

時じ

代だい

を

通つう

じ

て

安あん

定てい

し

て

いる

地ち

域いき

を

指さ

す

。

A stabilized continent refers to a region that has remained stable over long geological periods.

この安あん定てい大たい陸りくの基き盤ばん岩がんは先せんカンブリア時じ代だいのものだ。

The basement rocks of this platform are from the Precambrian era.

クラトン
クラトン is a more specific term for the ancient, stable core of a continent, while 安定大陸 can refer to a broader stabilized continental area.
大たい陸りく棚だな
大陸棚 (continental shelf) is a submerged border of a continent, not a stable interior region like 安定大陸.

Compound of 安定 (stability) and 大陸 (continent), likely a calque from English 'stabilized continent' or 'platform' in geological context.