เปรียบเทียบวิธี

	การหาอายุทางธรณีกาล	การเทียบสัมพันธ์ลำดับชั้นหิน
สาขาวิชา	ธรณีศาสตร์	ธรณีศาสตร์
ตระกูล	Process / pipeline	Process / pipeline
ปีกำเนิด	1902	1901
ผู้ริเริ่ม	Ernest Rutherford and Frederick Soddy	Albrecht Penck and Eduard Brückner
ประเภท	temporal constraint pipeline	stratigraphic analysis pipeline
แหล่งต้นตำรับ	Dickin, A. P. (2005). Radiogenic Isotope Geology (2nd ed.). Cambridge University Press.	Catuneanu, O. (2002). Sequence Stratigraphy of Clastic Systems. Geological Association of Canada.
ชื่อเรียกอื่น	radiometric dating, isotopic dating, age determination	lithostratigraphic correlation, chronostratigraphic correlation, sequence correlation
ที่เกี่ยวข้อง	3	5
สรุป	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.	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.