Dawid Szymanowski
@sdawid.bsky.social
Researcher at ETH Zurich.
geology | geochronology | geochemistry
geology | geochronology | geochemistry
Pinned
Dawid Szymanowski
@sdawid.bsky.social
· Sep 4
Interlaboratory reproducibility of ID-TIMS U–Pb geochronology evaluated with a pre-spiked natural zircon solution
Abstract. The highest precision and accuracy in U–Pb geochronology is achieved using isotope dilution thermal ionisation mass spectrometry (ID-TIMS), a technique which owes its reliability to precise ...
doi.org
Happy to share the long-awaited results of our community experiment comparing high-precision ID-TIMS U-Pb lab performance🧪⚒️
We do pretty well but as ever there is room for improvement 🤓 Stay tuned!
doi.org/10.5194/gchr...
We do pretty well but as ever there is room for improvement 🤓 Stay tuned!
doi.org/10.5194/gchr...
Happy to share the long-awaited results of our community experiment comparing high-precision ID-TIMS U-Pb lab performance🧪⚒️
We do pretty well but as ever there is room for improvement 🤓 Stay tuned!
doi.org/10.5194/gchr...
We do pretty well but as ever there is room for improvement 🤓 Stay tuned!
doi.org/10.5194/gchr...
Interlaboratory reproducibility of ID-TIMS U–Pb geochronology evaluated with a pre-spiked natural zircon solution
Abstract. The highest precision and accuracy in U–Pb geochronology is achieved using isotope dilution thermal ionisation mass spectrometry (ID-TIMS), a technique which owes its reliability to precise ...
doi.org
September 4, 2025 at 4:08 PM
Happy to share the long-awaited results of our community experiment comparing high-precision ID-TIMS U-Pb lab performance🧪⚒️
We do pretty well but as ever there is room for improvement 🤓 Stay tuned!
doi.org/10.5194/gchr...
We do pretty well but as ever there is room for improvement 🤓 Stay tuned!
doi.org/10.5194/gchr...
Reposted by Dawid Szymanowski
An unexpected discovery of IODP Exp 398! 200 m of ash from the Kos Plateau Tuff eruption buried in the basins around Santorini, read how it got there in our new paper in Science Advances 🌋
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
Submarine ash megabed fed by far-traveled, shoreline-crossing pyroclastic currents from a large explosive volcanic eruption
Volcanic ash from an eruption in Greece poured into the sea, forming a bed 200 m thick in a submarine basin far from the volcano.
www.science.org
August 13, 2025 at 6:21 PM
An unexpected discovery of IODP Exp 398! 200 m of ash from the Kos Plateau Tuff eruption buried in the basins around Santorini, read how it got there in our new paper in Science Advances 🌋
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
Reposted by Dawid Szymanowski
The Nuvvuagittuq Greenstone Belt— a complex geological sequence in northeastern Canada—harbors surviving fragments of Earth’s oldest crust, dating back to ~4.16 billion years old, according to a new Science study.
Learn more: scim.ag/3FXN8sq
Learn more: scim.ag/3FXN8sq
Evidence for Hadean mafic intrusions in the Nuvvuagittuq Greenstone Belt, Canada
Many questions remain regarding Earth’s earliest crust owing to the rarity of Hadean (>4.03 billion-year-old) rocks and minerals. The Nuvvuagittuq Greenstone Belt (NGB) in Canada may be the only known...
scim.ag
June 26, 2025 at 7:22 PM
The Nuvvuagittuq Greenstone Belt— a complex geological sequence in northeastern Canada—harbors surviving fragments of Earth’s oldest crust, dating back to ~4.16 billion years old, according to a new Science study.
Learn more: scim.ag/3FXN8sq
Learn more: scim.ag/3FXN8sq
Reposted by Dawid Szymanowski
1456, the Duke of Milan established a medical institution dedicated to caring for the city’s poor and sick on a scale unprecedented in Europe.
Admission was based on lack of income, not religious affiliation.
It was the first secular hospital in Europe..
🧪
www.science.org/content/arti...
Admission was based on lack of income, not religious affiliation.
It was the first secular hospital in Europe..
🧪
www.science.org/content/arti...
Thousands buried in 17th century Italian crypt reveal lives of working poor
Remains recovered from beneath a Milan hospital shed light on health, diet, and drug habits during the 1600s
www.science.org
May 11, 2025 at 6:17 AM
1456, the Duke of Milan established a medical institution dedicated to caring for the city’s poor and sick on a scale unprecedented in Europe.
Admission was based on lack of income, not religious affiliation.
It was the first secular hospital in Europe..
🧪
www.science.org/content/arti...
Admission was based on lack of income, not religious affiliation.
It was the first secular hospital in Europe..
🧪
www.science.org/content/arti...
New study in GChron led by Chetan Nathwani - looking at what controls the shape of #zircon U-Pb date distributions in magmatic rocks and what meaningful info they can provide ⚒️🧪
gchron.copernicus.org/articles/7/1...
gchron.copernicus.org/articles/7/1...
Controls on zircon age distributions in volcanic, porphyry and plutonic rocks
Abstract. The distribution of zircon crystallisation ages in igneous rocks has been proposed to provide insights into the dynamics of underlying magma reservoirs. However, the ability to interpret mag...
gchron.copernicus.org
February 20, 2025 at 5:53 PM
New study in GChron led by Chetan Nathwani - looking at what controls the shape of #zircon U-Pb date distributions in magmatic rocks and what meaningful info they can provide ⚒️🧪
gchron.copernicus.org/articles/7/1...
gchron.copernicus.org/articles/7/1...
Reposted by Dawid Szymanowski
Reposted by Dawid Szymanowski
#postdoc (or #phd) #jobalert
The Experimental Planetology research group at @ethzurich.bsky.social is offering a Postdoc in Experimental Geochemistry and on the determination of liquid iron alloy densities with application to the Moon's and other planets core.
The Experimental Planetology research group at @ethzurich.bsky.social is offering a Postdoc in Experimental Geochemistry and on the determination of liquid iron alloy densities with application to the Moon's and other planets core.
Postdoc (or PhD) position in Experimental Geochemistry
The Experimental Planetology Group of the Department of Earth and Planetary Sciences (D-EAPS) invites applications for a 2-yr post-doctoral position on the experimental determination of liquid iron…
www.jobs.ethz.ch
January 17, 2025 at 10:32 AM
#postdoc (or #phd) #jobalert
The Experimental Planetology research group at @ethzurich.bsky.social is offering a Postdoc in Experimental Geochemistry and on the determination of liquid iron alloy densities with application to the Moon's and other planets core.
The Experimental Planetology research group at @ethzurich.bsky.social is offering a Postdoc in Experimental Geochemistry and on the determination of liquid iron alloy densities with application to the Moon's and other planets core.
Reposted by Dawid Szymanowski
Cave folks - here some must-read for your weekend! 😛#speleothem, #caves, #volcano, #climate - what else you want?! 👇 @pucicu.de @olakwiecien3.bsky.social @cavesandclimate.bsky.social
Excited to share our latest research published in @science.org #ScienceAdvances! 🎉
We've discovered the Laacher See eruption 🌋 in a speleothem from Germany, which allows to synchronize European and Greenland Late Glacial climate change.
Read more: www.science.org/doi/10.1126/...
A Thread ⬇️⬇️ 1/n
We've discovered the Laacher See eruption 🌋 in a speleothem from Germany, which allows to synchronize European and Greenland Late Glacial climate change.
Read more: www.science.org/doi/10.1126/...
A Thread ⬇️⬇️ 1/n
Discovery of Laacher See eruption in speleothem record synchronizes Greenland and central European Late Glacial climate change
A volcanic sulfur spike links the Laacher See eruption to Greenland ice cores and synchronizes the timelines to European records.
www.science.org
January 18, 2025 at 9:49 AM
Cave folks - here some must-read for your weekend! 😛#speleothem, #caves, #volcano, #climate - what else you want?! 👇 @pucicu.de @olakwiecien3.bsky.social @cavesandclimate.bsky.social
🧪
New study in PNAS: Apollo samples reveal that KREEP, the magma left after the #Moon was >99% solidified, formed 4.43 billion years ago. 🌘 This implies the Moon was born no later than ca. 140 My after the solar system’s birth. 🧪 ⚒️ @eth-eaps.bsky.social
www.pnas.org/doi/10.1073/...
www.pnas.org/doi/10.1073/...
www.pnas.org
January 7, 2025 at 7:02 PM
🧪
New study in PNAS: Apollo samples reveal that KREEP, the magma left after the #Moon was >99% solidified, formed 4.43 billion years ago. 🌘 This implies the Moon was born no later than ca. 140 My after the solar system’s birth. 🧪 ⚒️ @eth-eaps.bsky.social
www.pnas.org/doi/10.1073/...
www.pnas.org/doi/10.1073/...
www.pnas.org
January 6, 2025 at 9:58 PM
New study in PNAS: Apollo samples reveal that KREEP, the magma left after the #Moon was >99% solidified, formed 4.43 billion years ago. 🌘 This implies the Moon was born no later than ca. 140 My after the solar system’s birth. 🧪 ⚒️ @eth-eaps.bsky.social
www.pnas.org/doi/10.1073/...
www.pnas.org/doi/10.1073/...
Reposted by Dawid Szymanowski
So how small are the zircons that we date in the lab? Here's a Fish Canyon Tuff zircon on a $5 bill for comparison!
December 13, 2024 at 6:25 PM
So how small are the zircons that we date in the lab? Here's a Fish Canyon Tuff zircon on a $5 bill for comparison!
Reposted by Dawid Szymanowski
Clever composite photo lets you see a side of the universe normally hidden to human vision. A camera tuned to hydrogen-alpha light reveals glorious interstellar clouds swirling around the familiar stars of the constellation Orion.
(Photo: Włodzimierz Bubak) 🔭🧪
apod.nasa.gov/apod/ap24122...
(Photo: Włodzimierz Bubak) 🔭🧪
apod.nasa.gov/apod/ap24122...
January 6, 2025 at 4:31 PM
Clever composite photo lets you see a side of the universe normally hidden to human vision. A camera tuned to hydrogen-alpha light reveals glorious interstellar clouds swirling around the familiar stars of the constellation Orion.
(Photo: Włodzimierz Bubak) 🔭🧪
apod.nasa.gov/apod/ap24122...
(Photo: Włodzimierz Bubak) 🔭🧪
apod.nasa.gov/apod/ap24122...