Dawid Szymanowski

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...

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

26.06.2025 19:22 — 👍 72    🔁 20    💬 2    📌 4

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

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...

11.05.2025 06:17 — 👍 60    🔁 14    💬 0    📌 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...

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...

20.02.2025 17:53 — 👍 5    🔁 1    💬 0    📌 0

Postdoc publications and citations link to academic retention and faculty success | PNAS Postdoctoral training is a career stage often described as a demanding and anxiety-laden time when many promising PhDs see their academic dreams sl...

www.pnas.org/doi/10.1073/...

23.01.2025 04:27 — 👍 4    🔁 3    💬 0    📌 0

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…

#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.

17.01.2025 10:32 — 👍 4    🔁 5    💬 0    📌 0

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

18.01.2025 09:49 — 👍 10    🔁 2    💬 0    📌 0

🧪

07.01.2025 19:02 — 👍 8    🔁 0    💬 0    📌 0

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/...

06.01.2025 21:58 — 👍 26    🔁 9    💬 1    📌 2

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!

13.12.2024 18:25 — 👍 33    🔁 9    💬 0    📌 0

This wintry scene was captured from southern Poland on the northern hemisphere's long solstice night. Otherwise unseen nebulae hang in the sky, revealed by the camera modified to record red hydrogen-alpha light. The nebulae lie near the edge of the Orion molecular cloud and join the Hunter's familiar belt stars and bright giants Betelgeuse and Rigel. Eye of Taurus the Bull, yellowish Aldebaran anchors the V-shaped Hyades star cluster near top center. Still, near opposition in planet Earth's sky, the Solar System's ruling gas giant Jupiter is the brightest celestial beacon above this horizon's snowy peaks.

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...

06.01.2025 16:31 — 👍 1694    🔁 184    💬 36    📌 13

Dawid Szymanowski ‪ETH Zürich‬ - ‪‪Cited by 924‬‬ - ‪geology‬ - ‪geochronology‬ - ‪geochemistry‬ - ‪petrology‬

Hi! Would love to be added:

scholar.google.ch/citations?us...

06.01.2025 08:25 — 👍 1    🔁 0    💬 1    📌 0