地质

• Pinyin: dì zhì
• Hanzi breakdown: 地 = 土 + 也 (earth); 质 = 斤 + 贝 (substance, nature)

Meaning

Geology; the composition, structure, and history of the earth's crust and rock formations.

Used in scientific, engineering, and environmental contexts. 地质勘探 (geological survey), 地质灾害 (geological disaster), and 地质构造 (geological structure) are common professional terms. Important in mining, construction, and natural disaster assessment.

Examples

1. 地质学家通过分析岩层构造，推断出这一地区约在五千万年前经历过剧烈的板块运动。 By analyzing rock-layer structures, geologists inferred that the region experienced intense plate movement about 50 million years ago.
2. 在建设大型基础设施之前，必须进行详细的地质勘探以评估地基稳定性。 Before building large-scale infrastructure, detailed geological surveys must be conducted to assess foundation stability.
3. 近年来，地质灾害频发引起了社会各界对山区开发政策的广泛关注。 In recent years, frequent geological disasters have drawn widespread attention to mountain-region development policies.

Usage Guide

Context: science, engineering, mining, environmental studies

Tone: neutral

Do Say

• 该工程区域的地质条件较为复杂，施工前须委托专业机构开展系统性地质勘察。(The geological conditions in the project area are relatively complex; a systematic geological survey by a professional institution must be commissioned before construction.)
• 地质历史的研究为了解地球气候演变提供了不可替代的实物证据。(The study of geological history provides irreplaceable physical evidence for understanding the evolution of Earth's climate.)

Don't Say

• 地质土壤 — 地质 is broader than soil; say 地质条件 when referring to overall ground conditions, or 土壤 specifically for soil

Origin & History

地 (earth) + 质 (substance/nature/quality) — the nature and substance of the earth

Cultural Context

Generation: All ages

Social background: Universal