手法を比較

	地質図作成	層序相関	坑井测井分析
分野	地球科学	地球科学	地球科学
系統	Process / pipeline	Process / pipeline	Process / pipeline
提唱年	1799	1901	1940s
提唱者	William Smith	Albrecht Penck and Eduard Brückner	Guyod and Barnhart
種類	regional geological documentation pipeline	stratigraphic analysis pipeline	subsurface characterization pipeline
原典	Compton, R. R. (1962). Manual of Field Geology. John Wiley & Sons.	Catuneanu, O. (2002). Sequence Stratigraphy of Clastic Systems. Geological Association of Canada.	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	lithostratigraphic correlation, chronostratigraphic correlation, sequence correlation	wireline logging, borehole logging, petrophysical analysis
関連	4	5	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.	Stratigraphic correlation is the practice of identifying equivalent rock layers or chronostratigraphic units across space by tracing physical or chemical signatures. Rooted in 19th-century work on Alpine glacial sequences, this method was formalized in the 20th century by geologists like Vail who unified global sea-level change with depositional sequences. Correlation is foundational to basin-scale understanding of sediment transport, resource distribution, and paleoenvironmental change.	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.