مقایسهٔ روش‌ها

	تحلیل لاگ چاه	تعیین قدمت ژئochronological
حوزه	علوم زمین	علوم زمین
خانواده	Process / pipeline	Process / pipeline
سال پیدایش	1940s	1902
پدیدآور	Guyod and Barnhart	Ernest Rutherford and Frederick Soddy
نوع	subsurface characterization pipeline	temporal constraint pipeline
منبع بنیادین	Asquith, G. B., & Gibson, C. R. (2004). Basic Well Log Analysis (2nd ed.). American Association of Petroleum Geologists.	Dickin, A. P. (2005). Radiogenic Isotope Geology (2nd ed.). Cambridge University Press.
نام‌های دیگر	wireline logging, borehole logging, petrophysical analysis	radiometric dating, isotopic dating, age determination
مرتبط	5	3
خلاصه	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.	Geochronological dating is the determination of absolute ages of rocks and minerals using the decay of radioactive isotopes. Pioneered by Rutherford and Soddy (1902), this method provides numerical anchors for geological timescales and enables quantitative understanding of geological processes. Modern techniques (K-Ar, Rb-Sr, U-Pb, 40Ar/39Ar) span from recent to ancient events and are essential for calibrating relative chronologies and assessing rates of geological change.