手法を比較

	地質図作成	坑井测井分析
分野	地球科学	地球科学
系統	Process / pipeline	Process / pipeline
提唱年	1799	1940s
提唱者	William Smith	Guyod and Barnhart
種類	regional geological documentation pipeline	subsurface characterization pipeline
原典	Compton, R. R. (1962). Manual of Field Geology. John Wiley & Sons.	Asquith, G. B., & Gibson, C. R. (2004). Basic Well Log Analysis (2nd ed.). American Association of Petroleum Geologists.
別名	field mapping, geological surveying, lithostratigraphic mapping	wireline logging, borehole logging, petrophysical analysis
関連	4	5
概要	Geologic mapping is the systematic observation and documentation of rock types, structures, and relationships exposed on the land surface. Pioneered by William Smith in 1799, this foundational field method remains essential for understanding subsurface geology, economic geology, hazard assessment, and paleoenvironmental reconstruction. Modern mapping integrates field observations with satellite imagery, digital logs, and GIS technology to create comprehensive three-dimensional geological frameworks.	Well log analysis is the systematic examination of measurements recorded by instruments lowered into a borehole to characterize subsurface lithology, fluid content, and petrophysical properties. Originating in the 1940s, this method has become indispensable for petroleum exploration, groundwater assessment, and engineering geology. Well logs provide direct depth-correlated data that anchor interpretation of seismic surveys and constrain reservoir models.