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#geochemistry

1 message1 participant0 message aujourd’hui
Public
bse

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

ndsu.edu/webphreeq/

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.
Public
Ele Willoughby, PhD

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. 🧵

Linocut portrait of Keeling in teal with geochemical sampling tools with the Keeling curve in copy and axes (vertical: CO2 fraction micro-mol/mol from 325 to 400 and horizontal: Year 1960 to 2000).
#linocut#printmaking#climateChange
Public
💧🌏 Greg Cocks

Critical Minerals In Ores (CMiO) Database
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lnkd.in/gynRjUfn <-- shared USGS publication
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lnkd.in/gETca3DQ <-- shared link to open data database, web map services, etc
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portal.ga.gov.au/persona/cmmi <-- shared web map
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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

Public
💧🌏 Greg Cocks

The GEOROC Database (Geochemistry of Rocks of the Oceans and Continents)
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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

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