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| Analyse diagraphique× | Datation géochronologique× | |
|---|---|---|
| Domaine | Géosciences | Géosciences |
| Famille | Process / pipeline | Process / pipeline |
| Année d'origine≠ | 1940s | 1902 |
| Auteur d'origine≠ | Guyod and Barnhart | Ernest Rutherford and Frederick Soddy |
| Type≠ | subsurface characterization pipeline | temporal constraint pipeline |
| Source fondatrice≠ | Asquith, G. B., & Gibson, C. R. (2004). Basic Well Log Analysis (2nd ed.). American Association of Petroleum Geologists. link ↗ | Dickin, A. P. (2005). Radiogenic Isotope Geology (2nd ed.). Cambridge University Press. DOI ↗ |
| Alias | wireline logging, borehole logging, petrophysical analysis | radiometric dating, isotopic dating, age determination |
| Apparentées≠ | 5 | 3 |
| Résumé≠ | 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. |
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