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| 古地磁分析× | 同位素比质谱法× | |
|---|---|---|
| 领域 | 地球物理学 | 地球物理学 |
| 方法族 | Process / pipeline | Process / pipeline |
| 起源年份≠ | 1953 | 1994 |
| 提出者≠ | Ronald Fisher and contributors | Thomas Coplen and others |
| 类型≠ | Analysis of remnant magnetization in rocks for chronology and tectonics | Measurement of stable and radiogenic isotope ratios |
| 开创性文献≠ | Fisher, R. A. (1953). Dispersion on a sphere. Proceedings of the Royal Society of London, 217(1130), 295-305. DOI ↗ | Coplen, T. B. (1994). Reporting of stable hydrogen, carbon, and oxygen isotopic abundances. Pure and Applied Chemistry, 66(2), 273-276. DOI ↗ |
| 别名 | Paleomagnetism | IRMS |
| 相关 | 3 | 3 |
| 摘要≠ | 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. | Isotope Ratio Mass Spectrometry (IRMS) is an analytical technique that measures the relative abundance of stable isotopes (H, C, N, O, S) and some radiogenic isotopes (e.g., ⁸⁷Sr/⁸⁶Sr) in samples with high precision. Standardized by Coplen and colleagues, IRMS enables paleoclimate reconstruction, source tracing (diet, water origin), geochemical fingerprinting, and age dating through radiogenic isotopes. |
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