Warmer shallow Atlantic during deglaciation and early Holocene due to weaker overturning circulation https://www.byteseu.com/1243679/ #Climate #ClimateChange #EarthSciences #EarthSystemSciences #General #geochemistry #Geology #Geophysics/Geodesy #GlobalWarming #Palaeoceanography #Palaeoclimate
#geochemistry
1 post1 participant0 posts today
https://www.europesays.com/uk/252598/ Recent southwestern US drought exacerbated by anthropogenic aerosols and tropical ocean warming #AtmosphericScience #ClimateChange #EarthSciences #EarthSystemSciences #Environment #general #Geochemistry #Geology #Geophysics/Geodesy #Science #UK #UnitedKingdom
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BOGS 2025 is over. Prizes have been given for the Archie Douglas Award best oral presentation and also runner up oral and best and runner up poster presentation. Fear not, we will return and BOGS 2026 will be hosted at Sheffield Hallam sometime in July 2026... watch this space!
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And now to the fifth and final scientific session of BOGS 2025. Presentations include: intra-crystalline protein decomposition in fossil shells, using constructed wetlands to address wastewater pollution and primary productivity at the Cretaceous-Paleogene boundary.
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After an enjoyable happening last night, the second day and fourth session of BOGS 2025 includes presentation on: wild resource exploitation in Neolithic Europe using biomolecules, oxytetracycline removal from wastewater, understanding coral reef collapse from biomarkers and effect of agricultural plastics on microbial communities.
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For the final BOGS 2025 presentation of the day, we have a plenary given by Gordon Inglis - Hopane for the best: developing novel geochemical proxies using bacterial hopanoids.
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Now on to the second poster introduction session of BOGS 2025 with short presentations of eight posters. Again, a diverse range of studies being reported.
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In the third session of BOGS 2025, we'll have presentations on: isotope analysis of pyrolysates from proteins in paintings, removal of reactive dyes from wastewater and peat core multiproxy investigation of Pleistocene climate. Diverse but linked by the analytical tools being used.
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Including fatty acids and isotopes in snow petrel stomach oil deposits. Fantastic!
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Followed rapidly by the first poster introduction session of BOGS 2025. Short presentations of eight posters. No let up in the diversity here either!
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Second session of BOGS 2025 meeting included: GDGT distributions in Oligocene marine sediments, Py-GCMS characterisation of climate smart fertiliser reconstructing Devonian pCO2using biomarkers and isotopes. Consolidating the range of methods and topics being used.
First session of 2025 British Organic Geochemcal Society meeting, hosted by Bristol OGU, just finished. Topics included Py-GCMS & FTIR characterisation of plastic particles, methionine methylation of brGDGTs, food transport through lemur using deuterium label and HRMS for forensic profiling of soils. A fantastic broad range of topics.
CNRS is advertising for an isotope geochemist to work on phytolith and water samples from Africa. 18 months.
https://emploi.cnrs.fr/Offres/CDD/UMR7330-NOEGAR-065/Default.aspx
emploi.cnrs.frPortail Emploi CNRS - Offre d'emploi - H/F Chercheur en géochimie des isotopes stables
Where is over 99% of the world’s gold hidden?
It’s actually deep underground locked away in the Earth’s metallic core. However, researchers at our Uni discovered traces of precious metals in volcanic rocks on the islands of Hawaii which must have come from the Earth’s core: https://www.uni-goettingen.de/en/3240.html?id=7808. Their data shows material from the core, including gold and other precious metals, is leaking into the Earth’s mantle above.
Research #nature https://www.nature.com/articles/s41586-025-09003-0
#Geochemistry #IsotopeGeology
Aqueous #geochemistry this semester! We've moved from simple fluid-mineral equilibria to more complex models. As a teaching tool, I developed with help of our Uni's IT folks, an online portal to #USGS model software, WEB-PHREEQ. Anyone can use this.
Of course the students download the more capable desktop version for their projects (also, yes, I know there are more advanced portals out there). #geology
www.ndsu.eduWelcome to Web-phreeq - aqueous geochemical modelingPHREEQC, low temperature aqueous geochemistry, modeling, modelling, web-phreeq, wateq, water, Department of Geosciences, North Dakota State University, Fargo, ND, USA.
Introducing Advances in Geochemistry and Cosmochemistry! 
https://doi.org/10.33063/agc.v1i1.770
Happy birthday to #geochemist Charles David Keeling (1928 - 2005) whose decades long observations of CO2 in air samples from Mauna Loa Observatory were some of the 1st direct data to show the human contribution to greenhouse effect & global warming. The ‘Keeling Curve’ (in copper & red) shows both the seasonal variations (the wiggles) & the strong upward trend with time as the greenhouse gas built up in the atmosphere. 
New Preprint Alert!
I'm excited to share my latest research: "Modern Vivianite at the K–Pg Boundary, New Jersey Coastal Plain: A Redox-Driven Proxy at a Legacy Stratigraphic Interface."
Read the full preprint here: https://osf.io/preprints/osf/gevn7_v1
osf.ioOSF
Greg Cocks Critical Minerals In Ores (CMiO) Database
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https://lnkd.in/gynRjUfn <-- shared USGS publication
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https://lnkd.in/gETca3DQ <-- shared link to open data database, web map services, etc
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https://portal.ga.gov.au/persona/cmmi <-- shared web map
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https://lnkd.in/gdmMp2zg <-- shared editorial piece on critical minerals and geopolitics
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#geology #fedscience #opendata #CMMI #CMiO #criticalminerals #minerals #ores #database #opendata #GIS #spatial #mapping #spatialanalysis #commodities #technology #components #geochemistry #deposits #mining #extraction #classifaction #nomenclature #environments #structuralgeology #exploration
@USGS | @GeoscienceAustralia | @GeologicalSurveyOfCanada
The GEOROC Database (Geochemistry of Rocks of the Oceans and Continents)
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https://georoc.eu/georoc/new-start.asp <-- shared link to GEOROC resource
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H/T Paul Cleverley glasses curly blonde hair
“The GEOROC Database (Geochemistry of Rocks of the Oceans and Continents) is a comprehensive collection of published analyses of igneous and metamorphic rocks and minerals. It contains major and trace element concentrations, radiogenic and nonradiogenic isotope ratios as well as analytical ages for whole rocks, glasses, minerals and inclusions. Metadata include geospatial and other sample information, analytical details and references….
Current content of GEOROC:
• 22,750 papers
• 685,660 samples
• 2,680,100 analyses
• 39,334,100 single data values…”
#opendata #geology #geoscience #GEOROC #database #global #igneous #metamorphic #rocks #minerals #geochemistry #results #analyses #published #metadata #spatial #GIS #mapping #papers #samples #datavalues