The introduction of #14C dating in the 1950s revolutionised #archaeology. Now a new method for *non-destructive* extracting collagen from bones through hot water is taking this a step further:
@Tommyhigham et al.,
@biorxivpreprint 29.03.25, https://www.biorxiv.org/content/10.1101/2025.03.26.645488v1
Non-destructive radiocarbon dating of bone
Since the 1950s, radiocarbon measurements have anchored archaeological chronologies dating back to 50,000 years, with bone collagen being a commonly dated material. Despite advances in collagen extraction protocols, the process remains destructive, requiring sampling by sawing, drilling or crushing of dry bone, that can damage or destroy physical features and archaeological evidence, and often consumes the entire specimen. While non-destructive approaches have recently been applied in ancient genomics and palaeoproteomics, no equivalent approach has been established for radiocarbon dating of bone. Here, we outline a non-destructive collagen extraction workflow that avoids invasive sampling (cutting or drilling) and produces no visible damage to the bone. By heating the bone in hot water for several hours, collagen is solubilized, and the resulting collagenous solution can be purified and AMS dated. Here we show that the amino acid composition, C/N atomic ratios, δ13C and δ15N values of the hot-water-extracted collagen are comparable to collagen isolated from the same bones using classic decalcification methodologies. The hot water extraction method was tested on various bones, ranging from the Bronze Age to the Middle and Upper Paleolithic periods, which had been dated previously using routine destructive methods that involved acid demineralization. Our results show that non-destructive collagen extraction, coupled with an additional purification step e.g., ultrafiltration, yields identical radiocarbon ages to those obtained via the routine destructive methods.
### Competing Interest Statement
The authors have declared no competing interest.
لينوفو تطلق جهاز الحاسب الدفتري Yoga Air 14c flip بسعر 1241 دولار
https://todaypic.net/archives/211107
لينوفو تطلق جهاز الحاسب الدفتري Yoga Air 14c flip بسعر 1241 دولار
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Dating with the help of the carbon isotope
#14C is an important tool in
#archaeology. But the bones of people who ate a lot of fish during their lifetime can appear much older than they are. Researchers from
#ClusterROOTS and
#LEIZA have developed a method to correct diet-related errors in carbon dating. Now in
#ScienceAdvances:
https://www.uni-kiel.de/en/cluster-roots/details/news/025-fisch-esser-14c#Isotopeanalysis #UniKiel #ZBSA
This is how old fish eaters really are
Researchers from the ROOTS Cluster of Excellence and LEIZA develop a new approach to correct diet-related errors in carbon dating.
Die Datierung mit Hilfe des Kohlenstoffisotops
#14C ist ein wichtiges Hilfsmittel der
#Archäologie. Doch die Knochen von Menschen, die zu Lebzeiten viel Fisch gegessen haben, können dabei viel älter erscheinen als sie sind. Forschende des
#ClusterROOTS und des
#LEIZA haben eine Methode entwickelt, nahrungsbedingte Fehler bei Kohlenstoff-Datierungen zu korrigieren. Jetzt in
#ScienceAdvances:
https://www.uni-kiel.de/de/cluster-roots/detailansicht/news/025-fisch-esser-14c #Isotopenanalyse #UniKiel #ZBSASo alt sind Fisch-Esser wirklich
Forschende des Exzellenzclusters ROOTS und des LEIZA finden Methode, nahrungsbedingte Fehler bei Kohlenstoff-Datierungen zu korrigieren.
Spent some time re-reading that #GunungPadang #14C paper which makes the round, supposedly supporting the idea of a #Paleolithic monumental #pyramid in #Indonesia.
But to be honest, I'm still scratching my head how this passed peer review.
https://onlinelibrary.wiley.com/doi/10.1002/arp.1912
Die Sonne ist nicht so ruhig, wie sie oft scheint. Baumringe zeigen einen gigantischen Sonnensturm vor 14 300 Jahren. So ein Ereignis würde heute jahrelanges Chaos verursachen.
Die Sonne ist keineswegs so ruhig wie sie oft scheint. Baumringe zeigen einen gigantischen Sonnensturm vor 14 300 Jahren. So ein Ereignis würde heute jahrelanges Chaos verursachen.#Sonnensturm #Koronaler #Massenauswurf #Sonne #Polarlichter #Eiszeit #Miyake #Ereignis #ältereDryas #Kiefern #Fossil #Baumringe #C-14 #14C #Be-10 #10Be #Astronomie
Größter bekannter Sonnensturm traf die Erde am Ende der Eiszeit
Größter bekannter Sonnensturm traf die Erde am Ende der Eiszeit
Die Sonne ist nicht so ruhig, wie sie oft scheint. Baumringe zeigen einen gigantischen Sonnensturm vor 14 300 Jahren. So ein Ereignis würde heute jahrelanges Chaos verursachen.
"Marking time.
Radiocarbon timestamps left in ancient tree rings by cosmic ray bombardments can date historical events with unprecedented precision"
This is a great read of how Miyake-events can be used to combine #dendrochronology and #14C for precise dating of historical events. The cosmic events lead to world wide records dated to a year.
https://www.science.org/content/article/marking-time-cosmic-ray-storms-can-pin-precise-dates-history-ancient-egypt-vikings
#archaeology #treering
Marking time: Cosmic ray storms can pin precise dates on history from ancient Egypt to the Vikings
Astronomical outbursts leave telltale carbon-14 spikes in tree rings
RT @[email protected]
Cette semaine #14C parle bien de sexe, car l'étonnante découverte publiée dans J. of archaeological Science n’est autre que l’expression paléolithique de "l’Origine de Monde", une œuvre préhistorique que Gustave Courbet n’aurait probablement pas reniée.
https://www.franceculture.fr/emissions/carbone-14-le-magazine-de-larcheologie/lart-rupestre-a-lorigine-du-monde
🐦🔗: https://twitter.com/LeSalonNoirFC/status/1327883216523505665
L’art rupestre à « l’Origine du monde »
La forêt de Fontainebleau a révélé un vaste ensemble de gravures daté du 8e millénaire avant notre ère, d’époque Mésolithique et quelques exemples plus anciens.
Jens Notroff
Lowyat.NET
TodayPic
Cluster ROOTS
Spektrum (inoffiziell)
Ronald Visser
Mozinet ✔️