Day 4 of #Fossilympics20 and we& #39;re in for a ding-dong ping-pong battle in our next event: #StableTennis, where we attempt to find out the favourite stable isotope used in palaeontological analysis.
"Stable isotopes are non-radioactive forms of atoms. Although they do not emit radiation, their unique properties enable them to be used in a broad variety of applications, including [ #Fossilympics20]"

( @iaeaorg: https://www.iaea.org/topics/nuclear-science/isotopes/stable-isotopes)">https://www.iaea.org/topics/nu...
So, which stable isotopes get utilized most frequently in palaeontology? The four we& #39;ve plumped for in #Fossilympics20 are carbon-13, nitrogen-15, oxygen-18, and sulphur-34.

#StableTennis
Here& #39;s a carbon-13 primer from 1946: https://www.nature.com/articles/157071a0,">https://www.nature.com/articles/... and a lovely piece of palaeontological δ13C work by Dr @JoHellawell, executive officer of @ThePalAss, and Dr Chris Nicholas of @TCDOnTheRocks: https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1475-4983.2011.01108.x.

https://onlinelibrary.wiley.com/doi/pdf/1... href="https://twtext.com//hashtag/Fossilympics20"> #Fossilympics20 #StableTennis
Carbon-13

https://www.nature.com/articles/157071a0
Here& #39;s a nitrogen-15 primer ( http://resources.schoolscience.co.uk/PPARC/16plus/partich2pg1.html),">https://resources.schoolscience.co.uk/PPARC/16p... and a lovely piece of palaeontological δ15N work by Dr @JoHellawell, executive officer of @ThePalAss, and Dr Chris Nicholas of @TCDOnTheRocks: https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1475-4983.2011.01108.x.

https://onlinelibrary.wiley.com/doi/pdf/1... href="https://twtext.com//hashtag/Fossilympics20"> #Fossilympics20 #StableTennis
Here& #39;s an oxygen-18 primer from @NASA ( https://earthobservatory.nasa.gov/features/Paleoclimatology_OxygenBalance),">https://earthobservatory.nasa.gov/features/... and a vaguely relevant piece of δ18O-related #scicomm by @fossiliam for @ThePalAss: https://www.palass.org/publications/newsletter/putting-oo-news.">https://www.palass.org/publicati...
Here& #39;s a sulfur/sulphur-34 primer by Thode (1991: https://scope.dge.carnegiescience.edu/SCOPE_43/SCOPE_43_1_Chp1.pdf)">https://scope.dge.carnegiescience.edu/SCOPE_43/... and a study of Cambrian δ34S by Tatiana Goldberg & colleagues ( http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.504.9316&rep=rep1&type=pdf).

https://citeseerx.ist.psu.edu/viewdoc/d... href="https://twtext.com//hashtag/Fossilympics20"> #Fossilympics20 #StableTennis
And here& #39;s the #StableTennis table where you can serve up some iso-TOP facts to help your favourite secure a #Fossilympics20 medal of a different element!
To add a local spin, we will now provide some examples of each of the stable isotopes being applied to palaeoenvironmental analysis here in Yorkshire...

#Fossilympics20 #StableTennis
δ34S analysis of nodules, and the colour of chalk in East Yorkshire (and beyond)? Have a look at this paper by Jeans et al. (2016: https://journals.pan.pl/Content/107383/PDF/229.pdf?handler=pdf).

(Photo:">https://journals.pan.pl/Content/1... Red chalk cliffs, Hunstanton: @WikiCommons)
δ18O analysis of why bivalves in Yorkshire (and elsewhere) were small in the Middle Jurassic? Check out this @ThePalAss study by Johnson (1999: https://onlinelibrary.wiley.com/doi/pdf/10.1111/1475-4983.00088).

https://onlinelibrary.wiley.com/doi/pdf/1... href="https://twtext.com//hashtag/Fossilympics20"> #Fossilympics20 #StableTennis
δ15N analysis of diet in a Yorkshire cross pig, and its implications to ecology/archaeology? Try this work by Warinner & Tuross (2010: http://references.260mb.com/Bioarqueologia/Warinner2010.pdf?i=1)">https://references.260mb.com/Bioarqueo...
and C-isotope analysis of Mesolithic dogs from the extraordinary archaeological site of @archaeostarcarr? You& #39;ll need to peruse Clutton-Brock & Noe-Nygaard (1990: https://www.sciencedirect.com/science/article/abs/pii/0305440390900468)!

https://www.sciencedirect.com/science/a... href="https://twtext.com//hashtag/Fossilympics20"> #Fossilympics20 #StableTennis
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