地層

• Reading: ちそう
• Romaji: chisou
• Kanji breakdown: 地 (chi/ji) — earth, ground; 層 (sou) — layer, stratum
• Pronunciation: /tɕi.soː/

Meaning

Stratum; geological formation; layer. Layers of rock or soil deposited over time.

Refers to the distinct layers visible in rock formations, each representing a different geological period. Studied in science classes from middle school onward. Important for understanding fossils, earthquakes, and land formation in Japan.

Examples

1. 崖の断面にきれいな地層が見えた。 Beautiful strata were visible in the cross-section of the cliff.
2. 地層を調べると、その土地の歴史がわかる。 By examining strata, you can learn the history of the land.
3. 理科の授業で地層の成り立ちを学んだ。 I learned about how strata are formed in science class.

Usage Guide

Context: geology, science, education

Tone: neutral

Origin & History

Compound of 地 (chi, earth/ground) and 層 (sou, layer/stratum). Literally 'earth layers,' describing the stacked deposits of geological material.

Cultural Context

Era: Modern

Generation: All ages

Social background: Universal