Articles | Volume 2, issue 2
https://doi.org/10.5194/gchron-2-325-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gchron-2-325-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
05 Nov 2020
Research article |
| 05 Nov 2020
| 05 Nov 2020
Robust isochron calculation
School Earth Sciences, The University of Melbourne, Melbourne, Victoria 3010, Australia
Eleanor C. R. Green
School Earth Sciences, The University of Melbourne, Melbourne, Victoria 3010, Australia
Estephany Marillo Sialer
School Earth Sciences, The University of Melbourne, Melbourne, Victoria 3010, Australia
Jon Woodhead
School Earth Sciences, The University of Melbourne, Melbourne, Victoria 3010, Australia
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- Long‐Lived (180 Myr) Ductile Flow Within the Great Slave Lake Shear Zone D. Šilerová et al. 10.1029/2022TC007721
- A plate tectonic view from the top of the world K. Larson et al. 10.1111/ter.12582
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- Age and origin of the West Kimberley lamproites, Western Australia D. Phillips et al. 10.1016/j.lithos.2022.106913
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- Duluth Complex FC1 Apatite and Zircon: Reference Materials for (U‐Th)/He Dating? B. Härtel et al. 10.1111/ggr.12492
- Reassessing the timing of high-strain deformation in the Strangways Metamorphic Complex, Central Australia, by in situ mica Rb–Sr and titanite U–Pb geochronology E. Qiu et al. 10.1144/jgs2023-163
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- In search of lost time: Raman thermochronology of FC-1 zircon B. Härtel et al. 10.1007/s00410-023-02083-z
- Protracted Subduction of the European Hyperextended Margin Revealed by Rutile U‐Pb Geochronology Across the Dora‐Maira Massif (Western Alps) G. Bonnet et al. 10.1029/2021TC007170
- Metamorphic and intrusive history of the Hindu Raj region, northern Pakistan K. Larson et al. 10.1017/S0016756823000419
- Spurious age-eU associations in thermochronological data B. Härtel et al. 10.1016/j.epsl.2022.117870
- 40 Ar/ 39 Ar eruption ages of Turkana Basin tuffs: millennial-scale resolution constrains palaeoclimate proxy tuning models and hominin fossil ages D. Phillips et al. 10.1144/jgs2022-171
Latest update: 29 Jun 2024
Short summary
The standard approach to isochron calculation assumes that the distribution of uncertainties on the data arising from isotopic analysis is strictly Gaussian. This excludes datasets that have more scatter, even though many appear to have age significance. Our new approach requires only that the central part of the uncertainty distribution of the data defines a "spine" in the trend of the data. A robust statistics approach is used to locate the spine, and an implementation in Python is given.
The standard approach to isochron calculation assumes that the distribution of uncertainties on...
