The insane amount of stress and pressure regarding two upcoming exams. The amount that depends on me not only passing my geochem exam but doing well on it is absurd. It literally impacts my ability to have health insurance.
I need to lock in, but all I want to do is sleep. This feels impossible.
I need to lock in, but all I want to do is sleep. This feels impossible.
November 1, 2026 at 6:51 PM
The insane amount of stress and pressure regarding two upcoming exams. The amount that depends on me not only passing my geochem exam but doing well on it is absurd. It literally impacts my ability to have health insurance.
I need to lock in, but all I want to do is sleep. This feels impossible.
I need to lock in, but all I want to do is sleep. This feels impossible.
Half a geochem paper and half a Paleo paper done. Study for both finals through November, take them, and FINALLY finish up the incompletes from undergrad. A few hours a day and I'll get there. So grateful my professors made things flexible so I could pass and not pass away in the process!
October 20, 2026 at 8:42 PM
Half a geochem paper and half a Paleo paper done. Study for both finals through November, take them, and FINALLY finish up the incompletes from undergrad. A few hours a day and I'll get there. So grateful my professors made things flexible so I could pass and not pass away in the process!
The pair of students have gone from stressing about geochem and hydrology to stressing about how to a job in the earth and environmental sciences that will support a sustainable life.
Feel that. 😭
Feel that. 😭
Overheard in a coffeeshop:
"I like geology but in the karst way."
The heart longs.
"I like geology but in the karst way."
The heart longs.
October 16, 2026 at 7:54 PM
The pair of students have gone from stressing about geochem and hydrology to stressing about how to a job in the earth and environmental sciences that will support a sustainable life.
Feel that. 😭
Feel that. 😭
Rostrot und extrem sauer
Wegen des Klimawandels tauen weltweit Permafrostböden verstärkt auf. Was dies für die Trinkwasserversorgung der lokalen Bevölkerung sowie für Tiere und Pflanzen im Umfeld der Gewässer bedeutet, ist noch nicht untersucht.
www.spektrum.de/news/geochem...
Wegen des Klimawandels tauen weltweit Permafrostböden verstärkt auf. Was dies für die Trinkwasserversorgung der lokalen Bevölkerung sowie für Tiere und Pflanzen im Umfeld der Gewässer bedeutet, ist noch nicht untersucht.
www.spektrum.de/news/geochem...
Umweltphänomen: Rostrot und extrem sauer
In Alaska entstanden ab 2018 Flüsse mit extremen Umweltbedingungen.
www.spektrum.de
September 27, 2026 at 10:32 AM
Rostrot und extrem sauer
Wegen des Klimawandels tauen weltweit Permafrostböden verstärkt auf. Was dies für die Trinkwasserversorgung der lokalen Bevölkerung sowie für Tiere und Pflanzen im Umfeld der Gewässer bedeutet, ist noch nicht untersucht.
www.spektrum.de/news/geochem...
Wegen des Klimawandels tauen weltweit Permafrostböden verstärkt auf. Was dies für die Trinkwasserversorgung der lokalen Bevölkerung sowie für Tiere und Pflanzen im Umfeld der Gewässer bedeutet, ist noch nicht untersucht.
www.spektrum.de/news/geochem...
Freeman's Lemhi soil‑geochem programme: grid sampling, ICP‑MS with pXRF QA/QC. Will map arsenic‑antimony pathfinder corridors and orogenic high‑grade targets. https://ca.finance.yahoo.com/news/freeman-gold-advances-baseline-soil-113000526.html
September 21, 2026 at 1:04 PM
Freeman's Lemhi soil‑geochem programme: grid sampling, ICP‑MS with pXRF QA/QC. Will map arsenic‑antimony pathfinder corridors and orogenic high‑grade targets. https://ca.finance.yahoo.com/news/freeman-gold-advances-baseline-soil-113000526.html
A fun finding - when you combine independent proxy results (soil bulk geochem for rainfall, clumped isotopes for temperature), you can plot the data on a biome diagram.
These independent measures confirm our traditional stable isotope findings of an open woodland to savanna being present.
These independent measures confirm our traditional stable isotope findings of an open woodland to savanna being present.
September 21, 2026 at 4:58 PM
A fun finding - when you combine independent proxy results (soil bulk geochem for rainfall, clumped isotopes for temperature), you can plot the data on a biome diagram.
These independent measures confirm our traditional stable isotope findings of an open woodland to savanna being present.
These independent measures confirm our traditional stable isotope findings of an open woodland to savanna being present.
I was just talking to a student about Pourbaix diagrams...
Now, I know I must have seen them when I took inorganic chem in my undergrad, but I don't really remember them until I hit aqueous geochem in grad school.
Now, I know I must have seen them when I took inorganic chem in my undergrad, but I don't really remember them until I hit aqueous geochem in grad school.
September 8, 2026 at 9:31 PM
I was just talking to a student about Pourbaix diagrams...
Now, I know I must have seen them when I took inorganic chem in my undergrad, but I don't really remember them until I hit aqueous geochem in grad school.
Now, I know I must have seen them when I took inorganic chem in my undergrad, but I don't really remember them until I hit aqueous geochem in grad school.
I'm boring, I had no strange jobs. I mixed chemicals in a geochem lab for a summer high-school enrichment program (and tried to teach rude teenaged boys), I wrote guides for "traveling' natural-history boxes. I TAd. And then I became a professor.
Happy labor day (USA). What's one of the oddest paid job you've had? Mine was probably as a reader for a medical professor at Rutgers, whose eyes were failing. I read him many academic texts, as well as Samuel Butler's "The Way of All Flesh."
September 7, 2026 at 11:48 PM
I'm boring, I had no strange jobs. I mixed chemicals in a geochem lab for a summer high-school enrichment program (and tried to teach rude teenaged boys), I wrote guides for "traveling' natural-history boxes. I TAd. And then I became a professor.
Me, looped out of my mind, finally making sense of @boydpaleo.bsky.social's ever-growing dinosaur mummy geochem dataset:
September 6, 2026 at 12:41 AM
Me, looped out of my mind, finally making sense of @boydpaleo.bsky.social's ever-growing dinosaur mummy geochem dataset:
P.S. Denali is on youtube too www.youtube.com/@dykanite
Dykanite
Geologist & Volcanology PhD Candidate 🌋
Geochem ⚛️ Marine geo 🌊
LGBTQ in Science
350k on TikTok
https://linktr.ee/dykanite
www.youtube.com
September 4, 2026 at 12:22 AM
P.S. Denali is on youtube too www.youtube.com/@dykanite
Geochem of Galápagos corals over past 1000 yr reveals a large RECENT increase in interannl SST var in eastern equatorial Pacific (compared to other paleorecords) that exceeds natural variation. The increase parallels rising global temps & reflects stronger El Niños.
www.science.org/content/arti...
www.science.org/content/arti...
Climate change is strengthening El Niño, coral records suggest
1000-year archive from the Galápagos portends greater weather disruptions from the Pacific climate cycle
www.science.org
August 28, 2026 at 11:00 PM
Geochem of Galápagos corals over past 1000 yr reveals a large RECENT increase in interannl SST var in eastern equatorial Pacific (compared to other paleorecords) that exceeds natural variation. The increase parallels rising global temps & reflects stronger El Niños.
www.science.org/content/arti...
www.science.org/content/arti...
IDK, there's a LOT of papers by Becker, Fisher, and Davis post-2000. Add Wheat in there for geochem. But yes, none of their students (incl me) have permanent positions (most left the field). :/
August 28, 2026 at 7:03 PM
IDK, there's a LOT of papers by Becker, Fisher, and Davis post-2000. Add Wheat in there for geochem. But yes, none of their students (incl me) have permanent positions (most left the field). :/
This reminds me of a talk by a geochem grad student and the fundamental questions raised by someone in the rock mechanics group. (Do veins seal the cracks? If they do, are the veins really a record of the fluid-rock interaction for more than the time it takes to precipitate the vein?)
August 26, 2026 at 1:58 PM
This reminds me of a talk by a geochem grad student and the fundamental questions raised by someone in the rock mechanics group. (Do veins seal the cracks? If they do, are the veins really a record of the fluid-rock interaction for more than the time it takes to precipitate the vein?)
Oxygen was a later addition to the Earth's ecosystem, relative to life (there were about 2 billion years in between).
So, what did they "breathe"?
Probably mostly iron and hydrogen, and it wasn't very efficient. 🧪
Link: https://doi.org/10.1098/rstb.2006.1906
So, what did they "breathe"?
Probably mostly iron and hydrogen, and it wasn't very efficient. 🧪
Link: https://doi.org/10.1098/rstb.2006.1906
August 26, 2026 at 2:02 PM
Oxygen was a later addition to the Earth's ecosystem, relative to life (there were about 2 billion years in between).
So, what did they "breathe"?
Probably mostly iron and hydrogen, and it wasn't very efficient. 🧪
Link: https://doi.org/10.1098/rstb.2006.1906
So, what did they "breathe"?
Probably mostly iron and hydrogen, and it wasn't very efficient. 🧪
Link: https://doi.org/10.1098/rstb.2006.1906
Looks like @oceannetworks.ca visited one of my #CORK kids this morning! (Unsure from this clip which it was)
Good to see the geochem sampling lines are still clear apparently (hope y'all flushed them for a bit before collecting samples tho).
Good to see the geochem sampling lines are still clear apparently (hope y'all flushed them for a bit before collecting samples tho).
🌊 Watch live dive now @oceannetworks.ca We are testing equipment at a deep sea (~2700 m) bore hole in the ocean crust. The equipment will sample fluids from the borehole. The ingenious "ferris wheel" shows us fluid is moving through & out of the system #ONCabyss www.oceannetworks.ca/expeditions/...
August 22, 2026 at 6:27 PM
Looks like @oceannetworks.ca visited one of my #CORK kids this morning! (Unsure from this clip which it was)
Good to see the geochem sampling lines are still clear apparently (hope y'all flushed them for a bit before collecting samples tho).
Good to see the geochem sampling lines are still clear apparently (hope y'all flushed them for a bit before collecting samples tho).
This is almost completely unrelated, but I am nevertheless reminded of a story from a geochem class I took in ~1993 along with @hicommander.bsky.social. Because it is kind of a long story and it is almost completely unrelated and I believe in consent, I will ask you if i should proceed and wait.
August 21, 2026 at 5:23 PM
This is almost completely unrelated, but I am nevertheless reminded of a story from a geochem class I took in ~1993 along with @hicommander.bsky.social. Because it is kind of a long story and it is almost completely unrelated and I believe in consent, I will ask you if i should proceed and wait.
🌧️Western Amazonia and the tropical Andes have experienced a long-term trend toward wetter conditions over the past 1.93 million years, with greater variability during glacial periods.
👉Read more here: www.nature.com/articles/s43...
👉Read more here: www.nature.com/articles/s43...
A two-million-year record reveals long-term increase in precipitation over western Amazonia and the tropical Andes - Communications Earth & Environment
Western Amazonia and the tropical Andes experienced a long-term trend toward wetter conditions over the past 1.93 million years, with greater variability during glacial periods, as revealed by geochem...
www.nature.com
August 18, 2026 at 4:44 PM
🌧️Western Amazonia and the tropical Andes have experienced a long-term trend toward wetter conditions over the past 1.93 million years, with greater variability during glacial periods.
👉Read more here: www.nature.com/articles/s43...
👉Read more here: www.nature.com/articles/s43...
Intriguing sediment analysis, 2Ma Amazon river discharge. They caution against drawing conclusions re millennium scale events like AMOC-related Heinrich & D-O, fair enough. I dare to draw a conclusion re AMOC existence: it only became a fixture late in the record, ie, when rainfall increased bigly.
August 18, 2026 at 6:17 PM
Intriguing sediment analysis, 2Ma Amazon river discharge. They caution against drawing conclusions re millennium scale events like AMOC-related Heinrich & D-O, fair enough. I dare to draw a conclusion re AMOC existence: it only became a fixture late in the record, ie, when rainfall increased bigly.
Jobs at the University of Freiburg (DE) with deadlines:
- #PhD in S Cycling in Wetlands & its Coupling to Fe & C (20 Sep/open until filled)
- #postdoc in Environ. Geochem. (23 Sep/open until filled)
- Lab Manager in the Environ. Geochem Lab (25 Sep)
More info: buff.ly/N9jIEx1
- #PhD in S Cycling in Wetlands & its Coupling to Fe & C (20 Sep/open until filled)
- #postdoc in Environ. Geochem. (23 Sep/open until filled)
- Lab Manager in the Environ. Geochem Lab (25 Sep)
More info: buff.ly/N9jIEx1
August 17, 2026 at 6:00 AM
Jobs at the University of Freiburg (DE) with deadlines:
- #PhD in S Cycling in Wetlands & its Coupling to Fe & C (20 Sep/open until filled)
- #postdoc in Environ. Geochem. (23 Sep/open until filled)
- Lab Manager in the Environ. Geochem Lab (25 Sep)
More info: buff.ly/N9jIEx1
- #PhD in S Cycling in Wetlands & its Coupling to Fe & C (20 Sep/open until filled)
- #postdoc in Environ. Geochem. (23 Sep/open until filled)
- Lab Manager in the Environ. Geochem Lab (25 Sep)
More info: buff.ly/N9jIEx1
📰 **How much hydrogen awaits us underground?**
In the 1990s, Barbara Sherwood Lollar descended into the Kidd Creek mine in northern Ontario, which cuts more than three kilometers into the ancient root of North America. There her team of geochem...
📰 Source: MIT Technology Review
🔗 Archive […]
In the 1990s, Barbara Sherwood Lollar descended into the Kidd Creek mine in northern Ontario, which cuts more than three kilometers into the ancient root of North America. There her team of geochem...
📰 Source: MIT Technology Review
🔗 Archive […]
Original post on igeek.gamer-geek-news.com
igeek.gamer-geek-news.com
August 17, 2026 at 9:24 AM
📰 **How much hydrogen awaits us underground?**
In the 1990s, Barbara Sherwood Lollar descended into the Kidd Creek mine in northern Ontario, which cuts more than three kilometers into the ancient root of North America. There her team of geochem...
📰 Source: MIT Technology Review
🔗 Archive […]
In the 1990s, Barbara Sherwood Lollar descended into the Kidd Creek mine in northern Ontario, which cuts more than three kilometers into the ancient root of North America. There her team of geochem...
📰 Source: MIT Technology Review
🔗 Archive […]
If the 3He question is a specific thing you’re looking for a response to: most of the 3He on Earth is from ingassing of solar nebular helium during accretion (probably into a magma ocean). I’ll send a chapter from the Treatise on Geochem that I wrote on noble gases!
December 18, 2024 at 4:02 PM
If the 3He question is a specific thing you’re looking for a response to: most of the 3He on Earth is from ingassing of solar nebular helium during accretion (probably into a magma ocean). I’ll send a chapter from the Treatise on Geochem that I wrote on noble gases!
September 12, 2025 at 8:46 PM
We have a number of PhDs on offer this year in the Geochem Group at the School of Ocean and Earth Sciences at Southamton (www.southampton.ac.uk/research/ins...). Please pass this flyer onto who you know is looking for a PhD to start in Sept24. If you yourself are interested please drop me an email.
November 22, 2023 at 11:05 PM
We have a number of PhDs on offer this year in the Geochem Group at the School of Ocean and Earth Sciences at Southamton (www.southampton.ac.uk/research/ins...). Please pass this flyer onto who you know is looking for a PhD to start in Sept24. If you yourself are interested please drop me an email.
RT @jess_carilli: JOB: Geochem Ocean Acidification research technician at UW: https://uwhires.admin.washington.edu/eng/candidates/default.cfm?szCategory=jobprofile&szOrderID=93669&szCandidateID=0&szSearchWords=&szReturnToSearch=1
UW Human Resources
University of Washington Human Resources
uwhires.admin.washington.edu
November 29, 2024 at 11:35 AM
RT @jess_carilli: JOB: Geochem Ocean Acidification research technician at UW: https://uwhires.admin.washington.edu/eng/candidates/default.cfm?szCategory=jobprofile&szOrderID=93669&szCandidateID=0&szSearchWords=&szReturnToSearch=1
Hi Graham - could I be added please? Marine palaeoecology/mass extinctions/dabbling in geochem.
November 17, 2024 at 8:37 AM
Hi Graham - could I be added please? Marine palaeoecology/mass extinctions/dabbling in geochem.