השוואת שיטות

	סקר הידרוגיאולוגי	Stratigraphic Correlation	ניתוח סונדה גיאופיזית (Well Log Analysis)
תחום	מדעי כדור הארץ	מדעי כדור הארץ	מדעי כדור הארץ
משפחה	Process / pipeline	Process / pipeline	Process / pipeline
שנת המקור	1856	1901	1940s
הוגה השיטה	Darcy and Theis	Albrecht Penck and Eduard Brückner	Guyod and Barnhart
סוג	groundwater systems analysis pipeline	stratigraphic analysis pipeline	subsurface characterization pipeline
מקור מכונן	Fetter, C. W. (2018). Applied Hydrogeology (5th ed.). Prentice Hall.	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.
כינויים	groundwater assessment, hydrogeologic characterization, aquifer mapping	lithostratigraphic correlation, chronostratigraphic correlation, sequence correlation	wireline logging, borehole logging, petrophysical analysis
קשורות	3	5	5
תקציר	Hydrogeological survey is the systematic characterization of groundwater systems, including aquifer geometry, water quality, flow paths, and recharge-discharge dynamics. Rooted in Darcy's law (1856) and quantified by Theis (1935), this method is essential for water resource management, contaminant remediation, and hazard assessment. Modern surveys integrate geology, geophysics, geochemistry, and numerical modeling to understand complex subsurface flow systems.	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.