Comparer des méthodes

	Analyse pétrographique	Corrélation stratigraphique
Domaine	Géosciences	Géosciences
Famille	Process / pipeline	Process / pipeline
Année d'origine	1858	1901
Auteur d'origine	Henry Clifton Sorby	Albrecht Penck and Eduard Brückner
Type	compositional characterization pipeline	stratigraphic analysis pipeline
Source fondatrice	Tucker, M. E. (2003). Sedimentary Rocks in the Field: A Color Guide (3rd ed.). John Wiley & Sons.	Catuneanu, O. (2002). Sequence Stratigraphy of Clastic Systems. Geological Association of Canada.
Alias	microscopy analysis, thin section analysis, modal composition determination	lithostratigraphic correlation, chronostratigraphic correlation, sequence correlation
Apparentées	5	5
Résumé	Petrographic analysis is the microscopic examination of rock thin sections to determine mineral composition, grain size, texture, and diagenetic alteration. Pioneered by Sorby in 1858, this method remains the gold standard for understanding lithology and has evolved to include quantitative image analysis and cathodoluminescence. Petrographic data anchor well-log interpretation, validate seismic velocity models, and constrain paleoenvironmental and diagenetic histories.	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.