noun
geological survey
Technical term for surveying the geological features of an area, often for construction, resource exploration, or hazard assessment.
トンネル工事の前に地質調査が行われた。
A geological survey was conducted before the tunnel construction.
測量 is a general survey or measurement, often for mapping or construction, while 地質調査 specifically focuses on geological features.
Compound of 地質 (geological features) and 調査 (survey, investigation).