Marissa Tremblay
@tremblaymarissa.bsky.social
Assistant Professor. Noble gas geochemist. she/her/hers
https://www.eaps.purdue.edu/thermochronology/
https://www.eaps.purdue.edu/thermochronology/
Yesterday, I had the honor of giving my tenure talk to the Purdue EAPS department. I won’t actually find out if I was successful until next spring, but no matter what, I am incredibly grateful to have had the opportunity to be a faculty member here and thoroughly enjoyed the last 6 years. #boilerup
September 26, 2025 at 6:15 PM
Yesterday, I had the honor of giving my tenure talk to the Purdue EAPS department. I won’t actually find out if I was successful until next spring, but no matter what, I am incredibly grateful to have had the opportunity to be a faculty member here and thoroughly enjoyed the last 6 years. #boilerup
Reposted by Marissa Tremblay
A cadre of iron-rich extraterrestrial particles picked up faint whiffs of our planet’s atmosphere when they fell to Earth millions of years ago.
Fossilized Micrometeorites Record Ancient CO2 Levels - Eos
A cadre of iron-rich extraterrestrial particles picked up faint whiffs of our planet’s atmosphere when they fell to Earth millions of years ago.
eos.org
August 31, 2025 at 3:01 PM
A cadre of iron-rich extraterrestrial particles picked up faint whiffs of our planet’s atmosphere when they fell to Earth millions of years ago.
Reposted by Marissa Tremblay
Registration is now open for the 2025 Introduction to the Generic Mapping Tools (GMT) for Geophysics short course! This self-paced, asynchronous course introducing learners to modern GMT is available to complete between September 2–25, 2025.
Register by August 28 ➡️ https://loom.ly/hcbJrIQ
Register by August 28 ➡️ https://loom.ly/hcbJrIQ
August 7, 2025 at 2:25 PM
Registration is now open for the 2025 Introduction to the Generic Mapping Tools (GMT) for Geophysics short course! This self-paced, asynchronous course introducing learners to modern GMT is available to complete between September 2–25, 2025.
Register by August 28 ➡️ https://loom.ly/hcbJrIQ
Register by August 28 ➡️ https://loom.ly/hcbJrIQ
Reposted by Marissa Tremblay
Mineral Monday: The Handbook of Mineralogy on MSA’s Website
Where can you find quick and handy information on 5,663 minerals, both common and rare? In the Handbook of Mineralogy of course. It is available as a set of hardcover volumes, or on the MSA website (handbookofmineralogy.org).
Where can you find quick and handy information on 5,663 minerals, both common and rare? In the Handbook of Mineralogy of course. It is available as a set of hardcover volumes, or on the MSA website (handbookofmineralogy.org).
August 4, 2025 at 1:01 PM
Mineral Monday: The Handbook of Mineralogy on MSA’s Website
Where can you find quick and handy information on 5,663 minerals, both common and rare? In the Handbook of Mineralogy of course. It is available as a set of hardcover volumes, or on the MSA website (handbookofmineralogy.org).
Where can you find quick and handy information on 5,663 minerals, both common and rare? In the Handbook of Mineralogy of course. It is available as a set of hardcover volumes, or on the MSA website (handbookofmineralogy.org).
Reposted by Marissa Tremblay
Through social media, talks, and more, @drwendyrocks.bsky.social shares the joy of understanding our planet with audiences that might otherwise have never taken a second look at a rock.
buff.ly/fSaRJCX
Read more in our August issue: bit.ly/Eos-Aug2025
buff.ly/fSaRJCX
Read more in our August issue: bit.ly/Eos-Aug2025
Wendy Bohon: Quelling Fears and Sparking Geoscience Joy - Eos
This earthquake enthusiast and science communicator wants you to know that a “whole ecosystem” of scientific careers exists outside of academia.
buff.ly
August 2, 2025 at 10:45 PM
Through social media, talks, and more, @drwendyrocks.bsky.social shares the joy of understanding our planet with audiences that might otherwise have never taken a second look at a rock.
buff.ly/fSaRJCX
Read more in our August issue: bit.ly/Eos-Aug2025
buff.ly/fSaRJCX
Read more in our August issue: bit.ly/Eos-Aug2025
Reposted by Marissa Tremblay
Turns out, most meteorites come from only a few places in the asteroid belt. This could help scientists understand where to send future asteroid exploration missions.
eos.org/articles/a-g...
Read more in the July issue of Eos: bit.ly/Eos-Jul2025
eos.org/articles/a-g...
Read more in the July issue of Eos: bit.ly/Eos-Jul2025
A Geologic Map of the Asteroid Belt - Eos
Scientists leveraged a global camera network and doorbell cameras to track dozens of meteorites to their asteroid families.
eos.org
July 10, 2025 at 10:45 PM
Turns out, most meteorites come from only a few places in the asteroid belt. This could help scientists understand where to send future asteroid exploration missions.
eos.org/articles/a-g...
Read more in the July issue of Eos: bit.ly/Eos-Jul2025
eos.org/articles/a-g...
Read more in the July issue of Eos: bit.ly/Eos-Jul2025
Fellow Geoscientists!
We encourage you to attend the third Gordon Research Conference (GRC) on Geochronology (www.grc.org/geochronolog...). This GRC conference will be held August 17-22, 2025 at Sunday River, Maine. The deadline to apply to attend is July 20, 2025!!
We encourage you to attend the third Gordon Research Conference (GRC) on Geochronology (www.grc.org/geochronolog...). This GRC conference will be held August 17-22, 2025 at Sunday River, Maine. The deadline to apply to attend is July 20, 2025!!
2025 Geochronology Conference GRC
The 2025 Gordon Research Conference on Geochronology will be held in Newry, Maine. Apply today to reserve your spot.
www.grc.org
July 10, 2025 at 5:14 PM
Fellow Geoscientists!
We encourage you to attend the third Gordon Research Conference (GRC) on Geochronology (www.grc.org/geochronolog...). This GRC conference will be held August 17-22, 2025 at Sunday River, Maine. The deadline to apply to attend is July 20, 2025!!
We encourage you to attend the third Gordon Research Conference (GRC) on Geochronology (www.grc.org/geochronolog...). This GRC conference will be held August 17-22, 2025 at Sunday River, Maine. The deadline to apply to attend is July 20, 2025!!
🚨 New paper from the T@P group! 🚨 We performed diffusion experiments on laboratory deformed apatite samples, and demonstrated that the deformation-induced dislocations can create helium diffusion 'sink' like behavior observed in some natural samples. Check it out!
New in #GPLetters: Tremblay et al. show that when you squeeze & twist apatite, helium can get trapped when it would normally diffuse away.
Read more here: buff.ly/874F9tU
#OpenAccess
@tremblaymarissa.bsky.social
Read more here: buff.ly/874F9tU
#OpenAccess
@tremblaymarissa.bsky.social
July 8, 2025 at 7:49 PM
🚨 New paper from the T@P group! 🚨 We performed diffusion experiments on laboratory deformed apatite samples, and demonstrated that the deformation-induced dislocations can create helium diffusion 'sink' like behavior observed in some natural samples. Check it out!
I am so very proud of Dr. Moshammat (Moe) Mijjum, who successfully defended her Ph.D. on Wednesday and is the first Ph.D. student from our research group at Purdue!!!
June 13, 2025 at 3:05 PM
I am so very proud of Dr. Moshammat (Moe) Mijjum, who successfully defended her Ph.D. on Wednesday and is the first Ph.D. student from our research group at Purdue!!!
Reposted by Marissa Tremblay
Do you want a big overview of NSF, explaining things like the fact that 24% of all federally funded academic fundamental research comes from NSF? And that 94% of its budget goes out the door in grants/awards? Here you go. nsf-gov-resources.nsf.gov/files/Factsh...
February 8, 2025 at 3:32 PM
Do you want a big overview of NSF, explaining things like the fact that 24% of all federally funded academic fundamental research comes from NSF? And that 94% of its budget goes out the door in grants/awards? Here you go. nsf-gov-resources.nsf.gov/files/Factsh...
Reposted by Marissa Tremblay
A nice tribute in honor of Dr Laura Crossey, who has recently retired. I feel very fortunate to have had her as a mentor and role model!
www.nmepscor.org/news-and-eve...
www.nmepscor.org/news-and-eve...
Pioneering Geoscientist Professor Laura Crossey Retires from University of New Mexico | New Mexico EPSCoR
After a remarkable four-decade career marked by groundbreaking research, educational leadership, and a commitment to diversity in scientific fields, Professor Laura J. Crossey, a distinguished profess...
www.nmepscor.org
January 30, 2025 at 5:29 PM
A nice tribute in honor of Dr Laura Crossey, who has recently retired. I feel very fortunate to have had her as a mentor and role model!
www.nmepscor.org/news-and-eve...
www.nmepscor.org/news-and-eve...
Proud advisor week! PhD student Moe Mijjum had her first, first-author paper published in Meteoritics & Planetary Science, and she's got another accepted paper that should be out soon!
January 15, 2025 at 8:09 PM
Proud advisor week! PhD student Moe Mijjum had her first, first-author paper published in Meteoritics & Planetary Science, and she's got another accepted paper that should be out soon!
Reposted by Marissa Tremblay
🚨New paper just in time for the holidays 🚨 We combine exposure ages, glacial geomorphology, and sea level data to show that this pile of rocks near Thwaites Glacier is a moraine that formed in the Late Holocene (~1.4 ka) when a glacier thickened/advanced tinyurl.com/4sanafnb 🧵
December 19, 2024 at 4:54 PM
🚨New paper just in time for the holidays 🚨 We combine exposure ages, glacial geomorphology, and sea level data to show that this pile of rocks near Thwaites Glacier is a moraine that formed in the Late Holocene (~1.4 ka) when a glacier thickened/advanced tinyurl.com/4sanafnb 🧵
Reposted by Marissa Tremblay
Postdoc in Quaternary Icesheet Modeling. Join our new, joint NSF-NERC project with @chrisdarvill.bsky.social @geomatias.bsky.social and several others
jobs.leeds.ac.uk/Vacancy.aspx...
jobs.leeds.ac.uk/Vacancy.aspx...
Job Opportunity at University of Leeds: Research Fellow in Modelling Quaternary Ice-sheet Evolution
Salary: Grade 7 (£39,105 – £46,485 p.a. depending on experience) This role will be based on the university campus, with scope for it to be undertaken in a hybrid manner. We are also open to discussing...
jobs.leeds.ac.uk
December 21, 2024 at 2:04 PM
Postdoc in Quaternary Icesheet Modeling. Join our new, joint NSF-NERC project with @chrisdarvill.bsky.social @geomatias.bsky.social and several others
jobs.leeds.ac.uk/Vacancy.aspx...
jobs.leeds.ac.uk/Vacancy.aspx...
Welcome all the Bluesky newcomers 🤗
November 19, 2024 at 8:25 PM
Welcome all the Bluesky newcomers 🤗
Reposted by Marissa Tremblay
Congratulations to Emily Judd and the entire Phantastic DA team on this temperature reconstruction
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
A 485-million-year history of Earth’s surface temperature
A long-term record of global mean surface temperature (GMST) provides critical insight into the dynamical limits of Earth’s climate and the complex feedbacks between temperature and the broader Earth ...
www.science.org
September 19, 2024 at 11:59 PM
Congratulations to Emily Judd and the entire Phantastic DA team on this temperature reconstruction
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
A happy update: I resubmitted the same paper to another journal, and received FOUR REVIEWS within 1 month of that submission! Thank you to the editor who did the hard work of finding reviewers and to the four individuals who said YES! PS - on the whole they like the paper 🤗
When a journal rejects your manuscript two months after you submit it because they were unable to find reviewers 🫠
a close up of a man 's face with a blurred background
ALT: a close up of a man 's face with a blurred background
media.tenor.com
September 9, 2024 at 10:48 PM
A happy update: I resubmitted the same paper to another journal, and received FOUR REVIEWS within 1 month of that submission! Thank you to the editor who did the hard work of finding reviewers and to the four individuals who said YES! PS - on the whole they like the paper 🤗
Reposted by Marissa Tremblay
So much discovery came from the Joides Resolution. Hopefully NSF will find a way to revitalize the vital window into earth’s past that deep-sea drilling provides (gift link):
www.nytimes.com/2024/08/26/s...
www.nytimes.com/2024/08/26/s...
Dismantling the Ship That Drilled for the Ocean’s Deepest Secrets
The JOIDES Resolution, which for decades was key to advancing the understanding of the Earth and its innards, concluded what could be its final scientific expedition.
www.nytimes.com
August 26, 2024 at 8:17 PM
So much discovery came from the Joides Resolution. Hopefully NSF will find a way to revitalize the vital window into earth’s past that deep-sea drilling provides (gift link):
www.nytimes.com/2024/08/26/s...
www.nytimes.com/2024/08/26/s...
When a journal rejects your manuscript two months after you submit it because they were unable to find reviewers 🫠
a close up of a man 's face with a blurred background
ALT: a close up of a man 's face with a blurred background
media.tenor.com
August 11, 2024 at 9:08 PM
When a journal rejects your manuscript two months after you submit it because they were unable to find reviewers 🫠
Reposted by Marissa Tremblay
Hey All! We're looking for a glaciology PhD student at DTU-Space to model the ice flow of the Greenland ice sheet over the past 12,000 years. 👇
efzu.fa.em2.oraclecloud.com/hcmUI/Candid...
The CISP team is fun and growing! This call closes 16 August 2024.
efzu.fa.em2.oraclecloud.com/hcmUI/Candid...
The CISP team is fun and growing! This call closes 16 August 2024.
July 28, 2024 at 2:46 PM
Hey All! We're looking for a glaciology PhD student at DTU-Space to model the ice flow of the Greenland ice sheet over the past 12,000 years. 👇
efzu.fa.em2.oraclecloud.com/hcmUI/Candid...
The CISP team is fun and growing! This call closes 16 August 2024.
efzu.fa.em2.oraclecloud.com/hcmUI/Candid...
The CISP team is fun and growing! This call closes 16 August 2024.
Wow, very sad news to learn today. It was a pleasure getting to work with David on a large collaborative project when I was a PhD student.
Was saddened to hear that David Rowley, who oversaw my postdoc at the University of Chicago, passed away at the end of May. I have many fond memories of him stopping in for a quick word that turned into a 2 hour conversation on plate tectonics and geophysics.
A very smart, and very generous, man.
A very smart, and very generous, man.
David Rowley, geophysical scientist who loved the Indiana Dunes, dies at 70
David Ballantyne Rowley, a resident of Porter Beach, Indiana, passed away peacefully at his family’s lakeside home on May 30, 2024. In March, he celebrated his 70th birthday alongside his
www.hpherald.com
June 13, 2024 at 2:17 AM
Wow, very sad news to learn today. It was a pleasure getting to work with David on a large collaborative project when I was a PhD student.
Reposted by Marissa Tremblay
The Natural History Museum of Denmark is looking for a new Assistant, Associate, or Full Professor of Geology! Come and join our museum at perhaps the most exciting time in its >300 year history! employment.ku.dk/all-vacancie...
February 23, 2024 at 7:49 PM
The Natural History Museum of Denmark is looking for a new Assistant, Associate, or Full Professor of Geology! Come and join our museum at perhaps the most exciting time in its >300 year history! employment.ku.dk/all-vacancie...
Reposted by Marissa Tremblay
If you are a graduate student in the US and want up to $10,000 to collect geochronology data The AGeS-Grad program deadline is Feb 1st! It's an exceptional program, check out the website for details!
www.colorado.edu/program/ages...
www.colorado.edu/program/ages...
AGeS-Grad
www.colorado.edu
January 11, 2024 at 5:32 PM
If you are a graduate student in the US and want up to $10,000 to collect geochronology data The AGeS-Grad program deadline is Feb 1st! It's an exceptional program, check out the website for details!
www.colorado.edu/program/ages...
www.colorado.edu/program/ages...
Reposted by Marissa Tremblay
