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#radiocarbon — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #radiocarbon, aggregated by home.social.

  1. I finally got round to adding classic single radiocarbon calibration plots to my #Rstats package {c14}. I think they turned out pretty nice!

    c14.joeroe.io/reference/plot.c

    #Archaeology #ComputationalArchaeology #Radiocarbon

  2. I finally got round to adding classic single radiocarbon calibration plots to my #Rstats package {c14}. I think they turned out pretty nice!

    c14.joeroe.io/reference/plot.c

    #Archaeology #ComputationalArchaeology #Radiocarbon

  3. A coca leaf buried with a sacrificed Inca child just narrowed a 90-year mystery to under 50. New radiocarbon work points to ~1499 CE, the reign of Huayna Capac, not conquest, but imperial maintenance. #IncaEmpire #Archaeology #Radiocarbon anthropology.net/p/a-coca-leaf

  4. A coca leaf buried with a sacrificed Inca child just narrowed a 90-year mystery to under 50. New radiocarbon work points to ~1499 CE, the reign of Huayna Capac, not conquest, but imperial maintenance. #IncaEmpire #Archaeology #Radiocarbon anthropology.net/p/a-coca-leaf

  5. RE: archaeo.social/@isakroa/109382

    Came across this formulation in a fairly recent paper: "Formation of the site ended between cal AD 1325 and 1410 (note 68% CI dates are considered more probable)", in which they otherwise treat their dates very conscientiously, so I'm quote-boosting this old thread. This is problematic, right?
    #radiocarbon

  6. RE: archaeo.social/@isakroa/109382

    Came across this formulation in a fairly recent paper: "Formation of the site ended between cal AD 1325 and 1410 (note 68% CI dates are considered more probable)", in which they otherwise treat their dates very conscientiously, so I'm quote-boosting this old thread. This is problematic, right?
    #radiocarbon

  7. IOSACal 0.7

    IOSACal 0.7 was released yesterday. Here is a quick summary of what’s new. One of the standard plots rendered in the latest IOSACal version. It looks exactly as before. This long cycle was mostly about documentation improvements and some maintenance tasks, the boring but essential work that keeps the project going. Version 0.7 is already available in PyPI and conda-forge. There is an updated version record at Zenodo. All changes were contributed by Stefano Costa. Documentation […]

    steko.iosa.it/2026/02/16/iosac

  8. IOSACal 0.7

    IOSACal 0.7 was released yesterday. Here is a quick summary of what’s new. One of the standard plots rendered in the latest IOSACal version. It looks exactly as before. This long cycle was mostly about documentation improvements and some maintenance tasks, the boring but essential work that keeps the project going. Version 0.7 is already available in PyPI and conda-forge. There is an updated version record at Zenodo. All changes were contributed by Stefano Costa. Documentation […]

    steko.iosa.it/2026/02/16/iosac

  9. IOSACal 0.7

    IOSACal 0.7 was released yesterday. Here is a quick summary of what’s new. One of the standard plots rendered in the latest IOSACal version. It looks exactly as before. This long cycle was mostly about documentation improvements and some maintenance tasks, the boring but essential work that keeps the project going. Version 0.7 is already available in PyPI and conda-forge. There is an updated version record at Zenodo. All changes were contributed by Stefano Costa. Documentation […]

    steko.iosa.it/2026/02/16/iosac

  10. IOSACal 0.7

    IOSACal 0.7 was released yesterday. Here is a quick summary of what’s new. One of the standard plots rendered in the latest IOSACal version. It looks exactly as before. This long cycle was mostly about documentation improvements and some maintenance tasks, the boring but essential work that keeps the project going. Version 0.7 is already available in PyPI and conda-forge. There is an updated version record at Zenodo. All changes were contributed by Stefano Costa. Documentation […]

    steko.iosa.it/2026/02/16/iosac

  11. IOSACal 0.7

    IOSACal 0.7 was released yesterday. Here is a quick summary of what’s new. One of the standard plots rendered in the latest IOSACal version. It looks exactly as before. This long cycle was mostly about documentation improvements and some maintenance tasks, the boring but essential work that keeps the project going. Version 0.7 is already available in PyPI and conda-forge. There is an updated version record at Zenodo. All changes were contributed by Stefano Costa. Documentation […]

    steko.iosa.it/2026/02/16/iosac

  12. @jens2go @ClemensSchmid Unfortunately I have to agree with the reviewers (cool that these are open!) that the chronological modelling in this paper does not support the claims it makes.

    In particular, the headline that the structures were "used for up to 429 years" conflates the uncertainty of the #radiocarbon dates with the occupation span of the site.

    In reality the radiocarbon data offers no evidence of long-lived occupation (and hence domesticity); it just doesn't rule it out.

  13. @jens2go @ClemensSchmid Unfortunately I have to agree with the reviewers (cool that these are open!) that the chronological modelling in this paper does not support the claims it makes.

    In particular, the headline that the structures were "used for up to 429 years" conflates the uncertainty of the #radiocarbon dates with the occupation span of the site.

    In reality the radiocarbon data offers no evidence of long-lived occupation (and hence domesticity); it just doesn't rule it out.

  14. New research refines marine radiocarbon corrections for Magdalenian Spain, showing that different shell species age differently. The result is a sharper timeline for coastal Ice Age life and cave occupations. #Radiocarbon #Paleolithic #Archaeology #HumanEvolution anthropology.net/p/when-shellf

  15. New research refines marine radiocarbon corrections for Magdalenian Spain, showing that different shell species age differently. The result is a sharper timeline for coastal Ice Age life and cave occupations. #Radiocarbon #Paleolithic #Archaeology #HumanEvolution anthropology.net/p/when-shellf

  16. I'm starting #DigiArchMaintainathon today, working further with @jfy133 and @ddj-sa.bsky.social on a new standard for reporting #radiocarbon dates: github.com/MIxS-MInAS/miaard/

  17. I'm starting #DigiArchMaintainathon today, working further with @jfy133 and @ddj-sa.bsky.social on a new standard for reporting #radiocarbon dates: github.com/MIxS-MInAS/miaard/

  18. Making my way from Copenhagen to Leipzig for a workshop on #radiocarbon data and metadata organised by @jfy133. I'm looking forward to the workshop but---strangely maybe moreso---10 hours of focused time on the train.

    I unfortunately haven't done so much solo #CrossBorderRail this year. It's either been by plane (ugh) or long train trips with young kids... which is also fun, but not in the same way!

  19. Making my way from Copenhagen to Leipzig for a workshop on #radiocarbon data and metadata organised by @jfy133. I'm looking forward to the workshop but---strangely maybe moreso---10 hours of focused time on the train.

    I unfortunately haven't done so much solo #CrossBorderRail this year. It's either been by plane (ugh) or long train trips with young kids... which is also fun, but not in the same way!

  20. XRONOS is an open data infrastructure for the backbone of the archaeological record – chronology.

    As described in our paper out today in the Journal of Computer Applications in Archaeology (journal.caa-international.org/), XRONOS is the most comprehensive chronological database yet published, with over 350,000 radiocarbon and 75,000 site records.

    It is also the first global database to support other types of dating, such as by tree-rings or typology.

    #Archaeology #Radiocarbon #OpenData

  21. XRONOS is an open data infrastructure for the backbone of the archaeological record – chronology.

    As described in our paper out today in the Journal of Computer Applications in Archaeology (journal.caa-international.org/), XRONOS is the most comprehensive chronological database yet published, with over 350,000 radiocarbon and 75,000 site records.

    It is also the first global database to support other types of dating, such as by tree-rings or typology.

    #Archaeology #Radiocarbon #OpenData

  22. Unravelling The Dance Of Earthquakes - Evidence Of Partial Synchronization Of The Northern San Andreas Fault And Cascadia Megathrust
    --
    doi.org/10.1130/GES02857.1 <-- shared paper
    --
    “Previous paleoseismic work has suggested a possible stress triggering relationship between the Cascadia subduction zone and the northern San Andreas fault based on similar event timings. Turbidite successions correlated to both systems may support this hypothesis. Historic earthquakes in 1980 and 1992 in the Cascadia subduction zone and the 1906 earthquake on the northern San Andreas fault left turbidite records that are temporally well constrained by bomb-carbon−supported age-depth models..."
    #geology #USWest #Seattle #Washington #California #earthquake #engineeringeology #fault #faulting #SanAndreas #Cascadiasubductionzone #linked #Cascadia #research #sediment #sedimentology #Turbidite #paleoseismology #historic #spatial #spatialanalysis #spatiotemporal #model #modeling #stress #subduction #dating #radiocarbon #Holocene

  23. Unravelling The Dance Of Earthquakes - Evidence Of Partial Synchronization Of The Northern San Andreas Fault And Cascadia Megathrust
    --
    doi.org/10.1130/GES02857.1 <-- shared paper
    --
    “Previous paleoseismic work has suggested a possible stress triggering relationship between the Cascadia subduction zone and the northern San Andreas fault based on similar event timings. Turbidite successions correlated to both systems may support this hypothesis. Historic earthquakes in 1980 and 1992 in the Cascadia subduction zone and the 1906 earthquake on the northern San Andreas fault left turbidite records that are temporally well constrained by bomb-carbon−supported age-depth models..."

  24. Unravelling The Dance Of Earthquakes - Evidence Of Partial Synchronization Of The Northern San Andreas Fault And Cascadia Megathrust
    --
    doi.org/10.1130/GES02857.1 <-- shared paper
    --
    “Previous paleoseismic work has suggested a possible stress triggering relationship between the Cascadia subduction zone and the northern San Andreas fault based on similar event timings. Turbidite successions correlated to both systems may support this hypothesis. Historic earthquakes in 1980 and 1992 in the Cascadia subduction zone and the 1906 earthquake on the northern San Andreas fault left turbidite records that are temporally well constrained by bomb-carbon−supported age-depth models..."
    #geology #USWest #Seattle #Washington #California #earthquake #engineeringeology #fault #faulting #SanAndreas #Cascadiasubductionzone #linked #Cascadia #research #sediment #sedimentology #Turbidite #paleoseismology #historic #spatial #spatialanalysis #spatiotemporal #model #modeling #stress #subduction #dating #radiocarbon #Holocene

  25. Unravelling The Dance Of Earthquakes - Evidence Of Partial Synchronization Of The Northern San Andreas Fault And Cascadia Megathrust
    --
    doi.org/10.1130/GES02857.1 <-- shared paper
    --
    “Previous paleoseismic work has suggested a possible stress triggering relationship between the Cascadia subduction zone and the northern San Andreas fault based on similar event timings. Turbidite successions correlated to both systems may support this hypothesis. Historic earthquakes in 1980 and 1992 in the Cascadia subduction zone and the 1906 earthquake on the northern San Andreas fault left turbidite records that are temporally well constrained by bomb-carbon−supported age-depth models..."
    #geology #USWest #Seattle #Washington #California #earthquake #engineeringeology #fault #faulting #SanAndreas #Cascadiasubductionzone #linked #Cascadia #research #sediment #sedimentology #Turbidite #paleoseismology #historic #spatial #spatialanalysis #spatiotemporal #model #modeling #stress #subduction #dating #radiocarbon #Holocene

  26. Unravelling The Dance Of Earthquakes - Evidence Of Partial Synchronization Of The Northern San Andreas Fault And Cascadia Megathrust
    --
    doi.org/10.1130/GES02857.1 <-- shared paper
    --
    “Previous paleoseismic work has suggested a possible stress triggering relationship between the Cascadia subduction zone and the northern San Andreas fault based on similar event timings. Turbidite successions correlated to both systems may support this hypothesis. Historic earthquakes in 1980 and 1992 in the Cascadia subduction zone and the 1906 earthquake on the northern San Andreas fault left turbidite records that are temporally well constrained by bomb-carbon−supported age-depth models..."
    #geology #USWest #Seattle #Washington #California #earthquake #engineeringeology #fault #faulting #SanAndreas #Cascadiasubductionzone #linked #Cascadia #research #sediment #sedimentology #Turbidite #paleoseismology #historic #spatial #spatialanalysis #spatiotemporal #model #modeling #stress #subduction #dating #radiocarbon #Holocene

  27. Researchers in #archaeology have worked for many decades to analyze large numbers of #radiocarbon dates from sites across the world.

    The P3K14C dataset developed by Darcy Bird and colleagues has aggregated and organized over a 166,000 of these dates. See: opencontext.org/projects/cdd78

    We published this dataset in Open Context as #opendata, and cross-referenced these records with site records, gazetteer records, and other scientific data.

  28. Researchers in #archaeology have worked for many decades to analyze large numbers of #radiocarbon dates from sites across the world.

    The P3K14C dataset developed by Darcy Bird and colleagues has aggregated and organized over a 166,000 of these dates. See: opencontext.org/projects/cdd78

    We published this dataset in Open Context as #opendata, and cross-referenced these records with site records, gazetteer records, and other scientific data.