手法を比較

	古地磁気分析	盆地沈降解析	地球年代測定法
分野	地球科学	地球科学	地球科学
系統	Process / pipeline	Process / pipeline	Process / pipeline
提唱年	1906	1978	1902
提唱者	Bernard Brunhes and Motonori Matuyama	McKenzie and Sclater	Ernest Rutherford and Frederick Soddy
種類	temporal constraint pipeline	tectono-sedimentary analysis pipeline	temporal constraint pipeline
原典	Butler, R. F. (1992). Paleomagnetism: Magnetic Domains to Geologic Terranes. Blackwell Scientific Publications.	Sclater, J. G., & Christie, P. A. F. (1980). Continental stretching: An explanation of the post-mid-Cretaceous subsidence of the Central North Sea Basin. Journal of Geophysical Research, 85(B7), 3711–3739.	Dickin, A. P. (2005). Radiogenic Isotope Geology (2nd ed.). Cambridge University Press.
別名	paleomagnetic dating, magnetostratigraphy, paleomagnetic remanence	tectonic subsidence, backstripping, thermal history analysis	radiometric dating, isotopic dating, age determination
関連	3	4	3
概要	Paleomagnetism analysis is the study of ancient magnetic properties of rocks, measuring fossil magnetization to determine paleomagnetic field history and assign geological ages. Pioneered by Brunhes (1906) and systematized by Tauxe (2010), this method reveals geomagnetic reversals, polar wander paths, and paleomagnetic chronology independent of fossil biostratigraphy. Analysis integrates laboratory rock magnetism with field sampling to build high-resolution timescales and constrain plate motion.	Basin subsidence analysis is the quantitative study of how sedimentary basins deepen over geological time, driven by tectonics, isostasy, and load. Formalized by McKenzie (1978) and Sclater and Christie (1980), this method reveals the mechanical causes of basin development, predicts subsurface temperature and pressure histories, and constrains petroleum generation. Analysis integrates well stratigraphy, seismic geometry, gravity data, and thermal models to reconstruct basin evolution.	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.