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Marissa Tremblay

@tremblaymarissa

Assistant Professor. Noble gas geochemist. she/her/hers https://www.eaps.purdue.edu/thermochronology/

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23.09.2023
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Latest posts by Marissa Tremblay @tremblaymarissa

Coulomb 4.0 is here, via @temblorinc.bsky.social! What's this, you ask? It's the latest version of an open-source Matlab program that can help you visualize how stress is transferred when faults rupture. Find out more in this article by the scientists that developed and refined it! ⚒️

26.02.2026 16:25 👍 2 🔁 1 💬 1 📌 0
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What Americans Lose If Their National Center for Atmospheric Research Is Dismantled - Eos Five ways dismantling NCAR will cost the American people, and two ways to save it.

NCAR represents what is possible when a nation chooses to invest in science as a public good, writes @carlonimbus.bsky.social of @ucs.org. #SaveNCAR eos.org/opinions/wha...

27.01.2026 14:48 👍 171 🔁 98 💬 1 📌 5
photo of me with my talk title slide

photo of me with my talk title slide

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

26.09.2025 18:15 👍 9 🔁 0 💬 0 📌 0
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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.

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.

31.08.2025 15:01 👍 13 🔁 4 💬 0 📌 0
Promotional graphic for a 2025 short course titled "Introduction to the Generic Mapping Tools (GMT) for Geophysics." The course is asynchronous and runs from September 2 to 25, 2025. The background features a topographic map of the Atlantic Ocean and surrounding continents with a red-to-purple gradient overlay. Logos for NSF, NASA, USGS, GAGE, SAGE, and EarthScope Consortium appear at the bottom.

Promotional graphic for a 2025 short course titled "Introduction to the Generic Mapping Tools (GMT) for Geophysics." The course is asynchronous and runs from September 2 to 25, 2025. The background features a topographic map of the Atlantic Ocean and surrounding continents with a red-to-purple gradient overlay. Logos for NSF, NASA, USGS, GAGE, SAGE, and EarthScope Consortium appear at the bottom.

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

07.08.2025 07:25 👍 12 🔁 3 💬 0 📌 1
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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).

04.08.2025 13:01 👍 4 🔁 2 💬 0 📌 1
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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.

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

02.08.2025 22:45 👍 109 🔁 31 💬 1 📌 5
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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.

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

10.07.2025 22:45 👍 6 🔁 1 💬 0 📌 0
2025 Geochronology (GRS) Seminar GRC The 2025 Gordon Research Seminar on Geochronology (GRS) will be held in Newry, Maine. Apply today to reserve your spot.

The 2025 GRC will be preceded by a Gordon Research Seminar (GRS) (www.grc.org/geochronolog...) planned by and for students and ECRs. The GRS is August 16-17 at Sunday River, and will include a mentoring session. Encourage and support your research groups to attend both the GRS and GRC!

10.07.2025 17:14 👍 0 🔁 0 💬 0 📌 0
2025 Geochronology (GRS) Seminar GRC The 2025 Gordon Research Seminar on Geochronology (GRS) will be held in Newry, Maine. Apply today to reserve your spot.

The GRC provides an immersive experience for five days with colleagues in a collegial environment. The previous two Geochronology GRCs were very well received, and we still have room for more people to participate. We hope you will join us in August!

10.07.2025 17:14 👍 0 🔁 0 💬 1 📌 0
2025 Geochronology (GRS) Seminar GRC The 2025 Gordon Research Seminar on Geochronology (GRS) will be held in Newry, Maine. Apply today to reserve your spot.

The theme of the 2025 GRC is the "Timing, Tempo and Drivers of Earth’s Climate.” We have an exciting lineup of confirmed discussion leaders and speakers, which you can find at the link above. These include geochronologists as well as scientists whose work is heavily influenced by geochronology.

10.07.2025 17:14 👍 0 🔁 0 💬 1 📌 0
2025 Geochronology Conference GRC The 2025 Gordon Research Conference on Geochronology will be held in Newry, Maine. Apply today to reserve your spot.

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!!

10.07.2025 17:14 👍 1 🔁 0 💬 1 📌 0

🚨 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!

08.07.2025 19:49 👍 8 🔁 2 💬 1 📌 0

Moe's dissertation is: “Investigating the exposure and thermal history of enstatite (E) chondrites and improving cosmogenic noble gas production rate calculations for terrestrial and extraterrestrial applications." Congratulations, Dr. Mijjum!!!

13.06.2025 15:05 👍 2 🔁 0 💬 0 📌 0
Picture of Dr. Moe Mijjum

Picture of Dr. Moe Mijjum

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!!!

13.06.2025 15:05 👍 4 🔁 0 💬 1 📌 0

AGeS was so important for our community. An immense loss 😔

28.04.2025 22:36 👍 2 🔁 0 💬 0 📌 0
An “NSF BY THE NUMBERS” fact sheet screenshot with some facts about “ADVANCING SCIENCE AND ENGINEERING RESEARCH IN THE U.S. AND ABROAD”

-The U.S. National Science Foundation was created by Congress in_ 1950 to continue the U.S. science and technology enterprise began during World War II.
-NSF allocates 94% of its approximately $8.5 billion budget for grants and awards to support research projects, facilities and STEM education.
-NSF funds research in all 50 states and U.S. territories.
-NSF fosters international scientific collaboration on all 7 continents around the globe.
-About 2,000 academic and other private and public institutions across the U.S. conduct NSF-funded research.
-NSF supports 24% of all federally funded academic fundamental research at U.S. colleges and universities.
fundamental research comes from NSF.
- In 2020, NSF received approximately 43,000 research proposals from scientists and engineers and funded about 12,000.
- NSF-funded researchers have received 248 Nobel Prizes.

An “NSF BY THE NUMBERS” fact sheet screenshot with some facts about “ADVANCING SCIENCE AND ENGINEERING RESEARCH IN THE U.S. AND ABROAD” -The U.S. National Science Foundation was created by Congress in_ 1950 to continue the U.S. science and technology enterprise began during World War II. -NSF allocates 94% of its approximately $8.5 billion budget for grants and awards to support research projects, facilities and STEM education. -NSF funds research in all 50 states and U.S. territories. -NSF fosters international scientific collaboration on all 7 continents around the globe. -About 2,000 academic and other private and public institutions across the U.S. conduct NSF-funded research. -NSF supports 24% of all federally funded academic fundamental research at U.S. colleges and universities. fundamental research comes from NSF. - In 2020, NSF received approximately 43,000 research proposals from scientists and engineers and funded about 12,000. - NSF-funded researchers have received 248 Nobel Prizes.

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...

08.02.2025 15:32 👍 146 🔁 74 💬 1 📌 2
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...

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...

30.01.2025 17:29 👍 7 🔁 3 💬 0 📌 0
heading of journal paper

heading of journal paper

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!

15.01.2025 20:09 👍 5 🔁 1 💬 0 📌 0
A photo taken from a plane that shows a mountain (Mount Murphy, West Antarctica), moraine, and outcrops of a scoria cone, all of which are surrounded by ice and snow. A small glacier that flows from the flanks of Mount Murphy toward the moraine and scoria cone is highlighted in purple. Arrows show our interpreted ice flow directions.

A photo taken from a plane that shows a mountain (Mount Murphy, West Antarctica), moraine, and outcrops of a scoria cone, all of which are surrounded by ice and snow. A small glacier that flows from the flanks of Mount Murphy toward the moraine and scoria cone is highlighted in purple. Arrows show our interpreted ice flow directions.

🚨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 🧵

19.12.2024 16:54 👍 55 🔁 14 💬 7 📌 5
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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...

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...

21.12.2024 14:04 👍 12 🔁 4 💬 0 📌 0

Welcome all the Bluesky newcomers 🤗

19.11.2024 20:12 👍 3 🔁 0 💬 0 📌 0
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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 ...

Congratulations to Emily Judd and the entire Phantastic DA team on this temperature reconstruction

www.science.org/doi/10.1126/...

19.09.2024 23:59 👍 38 🔁 11 💬 0 📌 0

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 🤗

09.09.2024 22:48 👍 1 🔁 0 💬 0 📌 0
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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.

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...

26.08.2024 20:17 👍 31 🔁 10 💬 1 📌 2

And the same journal sent me a reviewer request 2 days later 🫠🫠

13.08.2024 00:35 👍 0 🔁 0 💬 0 📌 0
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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

When a journal rejects your manuscript two months after you submit it because they were unable to find reviewers 🫠

11.08.2024 21:08 👍 3 🔁 0 💬 2 📌 1

where is the dislike button

28.07.2024 21:51 👍 1 🔁 0 💬 0 📌 0
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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.

28.07.2024 14:46 👍 5 🔁 8 💬 0 📌 0