Cosmos:elementary | This is older than the Sun and it’s on Earth! Presolar grains @Cosmos_elementary | Uploaded May 2021 | Updated October 2024, 6 hours ago.
There is material on Earth that is older than the Earth itself and even the Sun. Where did it come from? What are Presolar grains?
Sources:
Iron meteorites
geology.com/meteorites/iron-meteorites.shtml
Planetary differentiation
link.springer.com/referenceworkentry/10.1007%2F978-3-642-27833-4_430-2
Age of Earth
scientificamerican.com/article/how-science-figured-out-the-age-of-the-earth
Age of the Solar System
nature.com/articles/ngeo941
forbes.com/sites/startswithabang/2018/06/16/ask-ethan-how-do-we-know-the-age-of-the-solar-system/?sh=2d65dac61741
Chondrites
https://astronomy.swin.edu.au/cosmos/c/chondrite
nhm.ac.uk/discover/types-of-meteorites.html
Uranium-led dating
link.springer.com/referenceworkentry/10.1007%2F978-94-007-6326-5_193-1
evolution-outreach.biomedcentral.com/articles/10.1007/s12052-010-0226-0
britannica.com/science/uranium-lead-dating
Half life
hps.org/publicinformation/ate/q8270.html
https://nuclab.spbu.ru/old/common/5.pdf
sciencedirect.com/topics/earth-and-planetary-sciences/isotope
http://www.uwyo.edu/sif/stable-isotopes/what-are-stable-isotopes.html
https://www.uab.edu/ehs/images/docs/rad/Accepted_HalfLives_Commonly_Used_Radioisotopes.pdf
The law of inclusions
sandatlas.org/principle-of-inclusions
1987
nature.com/articles/330728a0
Presolar matter
annualreviews.org/doi/abs/10.1146/annurev-astro-082214-122505
annualreviews.org/doi/pdf/10.1146/annurev.astro.42.053102.134022
sciencedirect.com/science/article/abs/pii/S0032063301000253
link.springer.com/chapter/10.1007/978-0-387-74184-0_10
Recent findings
iopscience.iop.org/article/10.3847/1538-4365/abdbab/pdf
sciencedaily.com/releases/2020/01/200113153306.htm#:~:text=And%20in%20a%20meteorite%20that,material%20ever%20found%20on%20Earth.
livescience.com/oldest-material-on-earth.html
https://news.uchicago.edu/story/uchicago-field-museum-scientists-discover-oldest-material-earth-7-billion-year-old-stardust
pnas.org/content/117/4/1884
Lectures
youtube.com/watch?v=8t88bxWpKak
youtube.com/watch?v=Zqx1C4XNLbw
youtube.com/watch?v=OMTl5fY4QW4
There is material on Earth that is older than the Earth itself and even the Sun. Where did it come from? What are Presolar grains?
Sources:
Iron meteorites
geology.com/meteorites/iron-meteorites.shtml
Planetary differentiation
link.springer.com/referenceworkentry/10.1007%2F978-3-642-27833-4_430-2
Age of Earth
scientificamerican.com/article/how-science-figured-out-the-age-of-the-earth
Age of the Solar System
nature.com/articles/ngeo941
forbes.com/sites/startswithabang/2018/06/16/ask-ethan-how-do-we-know-the-age-of-the-solar-system/?sh=2d65dac61741
Chondrites
https://astronomy.swin.edu.au/cosmos/c/chondrite
nhm.ac.uk/discover/types-of-meteorites.html
Uranium-led dating
link.springer.com/referenceworkentry/10.1007%2F978-94-007-6326-5_193-1
evolution-outreach.biomedcentral.com/articles/10.1007/s12052-010-0226-0
britannica.com/science/uranium-lead-dating
Half life
hps.org/publicinformation/ate/q8270.html
https://nuclab.spbu.ru/old/common/5.pdf
sciencedirect.com/topics/earth-and-planetary-sciences/isotope
http://www.uwyo.edu/sif/stable-isotopes/what-are-stable-isotopes.html
https://www.uab.edu/ehs/images/docs/rad/Accepted_HalfLives_Commonly_Used_Radioisotopes.pdf
The law of inclusions
sandatlas.org/principle-of-inclusions
1987
nature.com/articles/330728a0
Presolar matter
annualreviews.org/doi/abs/10.1146/annurev-astro-082214-122505
annualreviews.org/doi/pdf/10.1146/annurev.astro.42.053102.134022
sciencedirect.com/science/article/abs/pii/S0032063301000253
link.springer.com/chapter/10.1007/978-0-387-74184-0_10
Recent findings
iopscience.iop.org/article/10.3847/1538-4365/abdbab/pdf
sciencedaily.com/releases/2020/01/200113153306.htm#:~:text=And%20in%20a%20meteorite%20that,material%20ever%20found%20on%20Earth.
livescience.com/oldest-material-on-earth.html
https://news.uchicago.edu/story/uchicago-field-museum-scientists-discover-oldest-material-earth-7-billion-year-old-stardust
pnas.org/content/117/4/1884
Lectures
youtube.com/watch?v=8t88bxWpKak
youtube.com/watch?v=Zqx1C4XNLbw
youtube.com/watch?v=OMTl5fY4QW4
