Daniel A. Petrash
@petrash.bsky.social
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🔬 Researcher. Sedimentary Geochemistry | ⚒️ Unearthing Earth’s stories, one layer at a time
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Daniel A. Petrash
Pedro
29 days ago
add a skeleton here at some point
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Daniel A. Petrash
New open-access paper now out in Geochimica et Cosmochimica Acta 🎉 We explore how Mn redox cycling may influence low-temperature carbonate formation, dolomite stoichiometry, and authigenic mineral pathways from modern porewaters to the sedimentary record.
www.sciencedirect.com/science/arti...
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Carboxyl-stabilized Mn redox cycling promotes a metastable kutnahorite-to-dolomite pathway
Fine-crystalline, fabric-preserving dolostones in deep-time successions are difficult to reconcile with high-temperature burial models, suggesting the…
https://www.sciencedirect.com/science/article/pii/S0016703726003418
about 1 month ago
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New open-access paper now out in Geochimica et Cosmochimica Acta 🎉 We explore how Mn redox cycling may influence low-temperature carbonate formation, dolomite stoichiometry, and authigenic mineral pathways from modern porewaters to the sedimentary record.
www.sciencedirect.com/science/arti...
loading . . .
Carboxyl-stabilized Mn redox cycling promotes a metastable kutnahorite-to-dolomite pathway
Fine-crystalline, fabric-preserving dolostones in deep-time successions are difficult to reconcile with high-temperature burial models, suggesting the…
https://www.sciencedirect.com/science/article/pii/S0016703726003418
about 1 month ago
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Daniel A. Petrash
Stable Isotope Ecology (CER, Kyoto Univ.)
10 months ago
Modeling nitrogen loss using stable isotopes in mountainous watersheds of the Bohemian Slavkov Forest (NW Czech Republic) - Buzek - 2025 - Vadose Zone Journal
#stableisotopes
acsess.onlinelibrary.wiley.com/doi/full/10....
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Modeling nitrogen loss using stable isotopes in mountainous watersheds of the Bohemian Slavkov Forest (NW Czech Republic)
Isotopes reveal water and N links; the runoff model shows groundwater's key role in N export. Quantified N cycle rates link to hydrology, showing climate's effect on reactive nitrogen (NR) fluxes fr.....
https://acsess.onlinelibrary.wiley.com/doi/full/10.1002/vzj2.70033?campaign=woletoc
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From acid rain to the anthropocene: 37 years of BIOGEOMON. inspiring (Part I) and insightful (both I and II) reading!
link.springer.com/article/10.1...
7 months ago
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Daniel A. Petrash
EGU SSP
8 months ago
Working on
#oxygenation
events and wondering where to showcase your
#research
findings?
#EGU26
got you covered! SSP1.10, co-organised by
@egubg.bsky.social
,
@egu-os.bsky.social
&
@egu-gmpv.bsky.social
is on
#environment
#evolution
during oxygenation events. Visit
www.egu26.eu
and submit by Jan 15!
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Daniel A. Petrash
Ian Hall
8 months ago
1,600+ fossil fuel lobbyists at COP30, outnumbering every delegation except Brazil This isn’t ‘dialogue’; it’s the industry responsible for the crisis hijacking the negotiations meant to stop it If this doesn’t make you furious, you’re not paying attention
www.theguardian.com/environment/...
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Fossil fuel lobbyists outnumber all Cop30 delegations except Brazil, report says
One in every 25 participants at 2025 UN climate summit is a fossil fuel lobbyist, according to Kick Big Polluters Out
https://www.theguardian.com/environment/2025/nov/14/fossil-fuel-lobbyists-cop30
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Daniel A. Petrash
Proceedings of the National Academy of Sciences
9 months ago
Climate modeling suggests that if the Earth warms by 3 °C by the late 21st century, hurricane-induced power outages will increase significantly in northern Florida, Georgia, the mid-Atlantic, and the North Atlantic coast. In PNAS:
https://ow.ly/Lu7I50Xgj05
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Daniel A. Petrash
EAG
9 months ago
Job alert:
#PhD
position in the modern Carbon Cycle, University of Southern Denmark (DK). Apply by 28 Nov. More info:
buff.ly/2SzWgFl
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Episodic carbonate cementation in a Miocene Eger Rift paleolake was driven by a combination of climatic, hydrological, and biogeochemical factors, including increased humidity, weathering, and variable solute fluxes.
9 months ago
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Daniel A. Petrash
Proceedings of the National Academy of Sciences
9 months ago
The buildings of the future might also be giant batteries. Improved electron-conducting carbon concrete can bear weight and store energy. A key to performance is the nanoscale connectivity of the electrode’s conductive carbon network. In PNAS:
https://ow.ly/7rZa50XaBiC
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Autumn Gold in Bohemia
#Krivoklat
9 months ago
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Daniel A. Petrash
David Ho
9 months ago
News that shocks no one: Carbon offsets do nothing for climate.
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Carbon offsets fail to cut global heating due to ‘intractable’ systemic problems, study says
Analysis of 25 years of evidence shows most schemes are poor quality and fail to lower emissions
https://www.theguardian.com/environment/2025/oct/06/carbon-offsets-fail-cut-global-heating-intractable-systemic-problems-study?utm_source=dlvr.it&utm_medium=bluesky&CMP=bsky_gu
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Daniel A. Petrash
Rage Against the Miocene
9 months ago
Fungal colonisers of land.
scitechdaily.com/earth-was-a-...
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Earth Was a Fungal World Before Plants Existed
Fungi arose long before plants, shaping Earth with early soils and nutrient cycles. Their hidden legacy shows they may have prepared the world for life to flourish on land.
https://scitechdaily.com/earth-was-a-fungal-world-before-plants-existed/
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Daniel A. Petrash
EAG
10 months ago
📣 2 weeks to the deadline! EAG Early Career Science Ambassador funding deadline, 1 October. Funding for young scientists based in Europe to attend a conference outside Europe up to 50% of expenses covered up to a maximum of €1500. More info & to apply:
buff.ly/4kaRVWC
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Daniel A. Petrash
Andrea Thompson
10 months ago
Congratulations, you've just lived through the three hottest summers on record 🫠 But with greenhouse gas emissions still piling up in the atmosphere, those records probably won't stand for terribly long. 🧪 (graphic by
@unamandita.bsky.social
)
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We’ve Lived through the Three Hottest Summers on Record
Climate-fueled heat has caused thousands of excess deaths over the past three summers, which were the three hottest on record
https://www.scientificamerican.com/article/climate-change-fuels-record-summer-heat-killing-thousands/
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"Injustice anywhere is a threat to justice everywhere" Dr. Martin Luther King Jr
add a skeleton here at some point
10 months ago
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This is not a new approach; it dates back to psychiatric research conducted in the 1960s, when LSD was investigated for its potential in treating anxiety and end-of-life distress.
add a skeleton here at some point
10 months ago
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Daniel A. Petrash
Mineral Cup & Ore Cup
10 months ago
#MinCup25
Round 1 Match 8: It’s the cesium
#pollucite
against the optical changeling
#tugtupite
for this match. Vote:
www.mineralcup.org/2025/vote/r1...
Results:
www.mineralcup.org/2025/results...
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https://www.mineralcup.org/2025/vote/r1m08
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Now it's covered up.
#Bansky
10 months ago
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Daniel A. Petrash
Evgenii Protasov
10 months ago
Coupled extracellular and intracellular electron transfer chains in methanogens
#microbiology
#methanogens
www.sciencedirect.com/science/arti...
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Coupled extracellular and intracellular electron transfer chains in methanogens: Mechanisms, energy conservation, and application potential
Syntrophic interaction between acetogens and methanogens is the key to address thermodynamic challenges in anaerobic digestion (AD), the strengthening…
https://www.sciencedirect.com/science/article/pii/S0043135425013478
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Daniel A. Petrash
Brian Ricketts
10 months ago
A post I’ve been putting together for 2 years - the Etymology of Earth Sci Words. So far about 500 terms - the initial goal before clicking the ‘Publish’ tab
www.geological-digressions.com/etymology-of...
There are >1,000,000 words in the English language So my 500 words is a paltry sample. ⚒️🧪🌊
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Etymology of Earth science words and phrases
The origins of words, prefixes, suffixes, abbreviations, names, acronyms, and terms commonly used in Earth sciences.
https://www.geological-digressions.com/etymology-of-earth-science-words-and-phrases/
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Waiting for the moon rise
#eclipse
10 months ago
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