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| Paleomagnetisk analys× | Receiver Function Analysis× | |
|---|---|---|
| Ämnesområde | Geofysik | Geofysik |
| Familj | Process / pipeline | Process / pipeline |
| Ursprungsår≠ | 1953 | 1979 |
| Upphovsperson≠ | Ronald Fisher and contributors | Charles Langston |
| Typ≠ | Analysis of remnant magnetization in rocks for chronology and tectonics | Teleseismic body wave analysis for subsurface imaging |
| Ursprungskälla≠ | Fisher, R. A. (1953). Dispersion on a sphere. Proceedings of the Royal Society of London, 217(1130), 295-305. DOI ↗ | Langston, C. A. (1979). Structure under Mount Rainier, Washington, inferred from teleseismic body waves. Journal of Geophysical Research, 84(B9), 4749-4762. DOI ↗ |
| Alias | Paleomagnetism | RF |
| Närliggande | 3 | 3 |
| Sammanfattning≠ | Paleomagnetic analysis is the study of remnant magnetization in rocks and sediments to determine the direction and magnitude of the Earth's ancient magnetic field and to establish the ages and tectonic histories of crustal rocks. Formalized by Fisher (1953) and Butler (1992), paleomagnetism underpins plate tectonics plate reconstruction, magnetostratigraphic dating, and paleoclimate studies. | Receiver Function (RF) analysis is a seismic method that isolates P-to-S wave conversions at crustal and mantle discontinuities using teleseismic records from distant earthquakes. Introduced by Langston in 1979, RF analysis provides a cost-effective way to determine crustal thickness, Poisson's ratio, and upper mantle structure without requiring active seismic sources, making it a workhorse technique in crustal and lithospheric studies. |
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