#olivine — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #olivine, aggregated by home.social.
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#KnowledgeBit: #Olivine is one of the primary components of the Earth's upper mantle. It is a common mineral in Earth's subsurface, but weathers quickly on the surface.
For this reason, Olivine has been proposed as a good candidate for accelerated weathering to sequester carbon dioxide from the Earth's oceans and atmosphere, as part of climate change mitigation.
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Andrew Frederiksen (U. Manitoba) gave us a very clear explanation of a better way to analyze shear-wave splitting as a way to probe the fabric (heterogeneities) of the upper mantle under continents.
The red and orange contours of large split times in British Columbia represent aligned olivine from present-day horizontal mantle flow. Splitting in Alberta represents fabrics formed and preserved from the Precambrian.
#UManitoba #McGillUniversity #Seismology #Lithosphere #Mantle #Olivine
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Andrew Frederiksen (U. Manitoba) gave us a very clear explanation of a better way to analyze shear-wave splitting as a way to probe the fabric (heterogeneities) of the upper mantle under continents.
The red and orange contours of large split times in British Columbia represent aligned olivine from present-day horizontal mantle flow. Splitting in Alberta represents fabrics formed and preserved from the Precambrian.
#UManitoba #McGillUniversity #Seismology #Lithosphere #Mantle #Olivine
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Andrew Frederiksen (U. Manitoba) gave us a very clear explanation of a better way to analyze shear-wave splitting as a way to probe the fabric (heterogeneities) of the upper mantle under continents.
The red and orange contours of large split times in British Columbia represent aligned olivine from present-day horizontal mantle flow. Splitting in Alberta represents fabrics formed and preserved from the Precambrian.
#UManitoba #McGillUniversity #Seismology #Lithosphere #Mantle #Olivine
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Andrew Frederiksen (U. Manitoba) gave us a very clear explanation of a better way to analyze shear-wave splitting as a way to probe the fabric (heterogeneities) of the upper mantle under continents.
The red and orange contours of large split times in British Columbia represent aligned olivine from present-day horizontal mantle flow. Splitting in Alberta represents fabrics formed and preserved from the Precambrian.
#UManitoba #McGillUniversity #Seismology #Lithosphere #Mantle #Olivine
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Andrew Frederiksen (U. Manitoba) gave us a very clear explanation of a better way to analyze shear-wave splitting as a way to probe the fabric (heterogeneities) of the upper mantle under continents.
The red and orange contours of large split times in British Columbia represent aligned olivine from present-day horizontal mantle flow. Splitting in Alberta represents fabrics formed and preserved from the Precambrian.
#UManitoba #McGillUniversity #Seismology #Lithosphere #Mantle #Olivine
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https://www.reddit.com/r/geology/s/3N4BmrPDFT
Lava boat (boulder) flowing down volcano slope in the Canary Islands #incredible #geology #volcanoes #geoscience #basalt #CrustalRecycling #bowensreactionseries #olivine
#pyroxine #plagioclase #amphibole #biotite #AndThenVideo credit to @IcelandExplorer on youtube http://www.youtube.com/@IcelandExplorer
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SciTech Chronicles. . . . . . . . .Mar 14th, 2025
#singularity #black #white #planar #Additive #spares #MMPACT #Regolith #gluconolactone #regulation #inflammation #Tregs #Serpentinization #olivine #magnetite #magnetizations #silicon #biomolecules #autotrophs #aquaporins
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SciTech Chronicles. . . . . . . . .Mar 14th, 2025
#singularity #black #white #planar #Additive #spares #MMPACT #Regolith #gluconolactone #regulation #inflammation #Tregs #Serpentinization #olivine #magnetite #magnetizations #silicon #biomolecules #autotrophs #aquaporins
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#Olivine var. #Peridot on #Magnetite
#Pakistan
Photo by Saphira Minerals
By #GeologicalWondersToo / Karen Kemp
#GeologyPage #Nature #Minerals #Crystals #Gems #Nature #NatureLovers #NaturePhotography #Photographer #RockPorn -
С прошедшим ДР Оливки :neocat_melt_blep:
#NUcarnival #OlivineNU #Olivine -
This afternoon's bike trip was a 37 km round trip in one hour and ten minutes to collect a 20 kg sack of "greensand" olivine for the garden.
I think it's a good example of the efficiency of velomobiles: how they make human power even more effective than when riding a normal bike. Even on the return journey with a headwind and loaded with the sack of sand, it was easy to keep the speed above 35 km/h.
Being able to stow a lot of things inside the aerodynamic form of the bike helps a lot with efficiency. You feel extra weight when accelerating, not so much once you get going.
And why the olivine ? I calculated a few weeks back that in the worst case this last winter our heating could have emitted 105 kg of CO2. This sack is enough to absorb about a fifth of that amount from the atmosphere.
Each time we plant things indoors or in our garden we add a bit of olivine.
Once humanity (especially those of us in the highly emitting richer countries) has reduced emissions by a lot, it's possible to make a bit of a dent by using a product like this. But there's no chance of compensating for ever larger emissions by trying to mine ever larger amounts of olivine.
#recumbent #velomobile #regel17 #cycling #biketooter #olivine #greensand #weathering #enhancedweathering
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#Olivine May Have Given Life a Jump Start https://eos.org/articles/olivine-may-have-given-life-a-jump-start
Olivine-catalyzed glycolaldehyde and sugar synthesis under aqueous conditions: Application to #prebiotic chemistry https://www.sciencedirect.com/science/article/pii/S0012821X23005691
"this #mineral can help turn #formaldehyde into sugars. The finding could help explain how the earliest organisms obtained sugars, which they use for energy and to build genetic molecules such as RNA and DNA."
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Wednesday, early afternoon posters at #AGU23
MR31B-0084 Effects of melt-rock interactions on deformation fabrics and rock physical properties in the shallow mantle lithosphere
James Kirkpatrick presenting, but this is the the M.Sc. work of Arvid Gonzalez (now core-logging in n. QC). Other authors are myself and Caroline Seyler (U. Minnesota).Arvid found that infiltrating mafic melt reduces the preserved strain in mantle olivine.
#McGillUniversity #Mantle #EBSD #Xenolith #Lithosphere #Olivine -
Hooray! @MineralCup is here on Mastodon!
Starting September 1, amazing minerals will go head-to-head in an epic competition to determine which one will join #olivine #garnet #IceMineral #Magnetite #quetzalcoatlite and #fluorite as a #MineralCup champion!
Voting takes place on the Mineral Cup website, but campaigning takes place everywhere, including here. Follow the hashtag #MinCup23 for toots about what makes minerals marvelous.
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And then, after one final reminder that the city will officially be worshipping fossil fuel next week, I got back home, with a loaf of bread for my lunch picked up in the city centre and a 20 kg sack of olivine ("greensand") which will eventually absorb about 20 kg of CO2 when I use it in the garden. I don't use any fossil fuels, but others unfortunately still do. It seems better to buy this stuff to dilute our home-made compost than other things which are more environmentally destructive.
#velomobile #regel17 #cycling #biketooter #weathering #enhancedweathering #olivine #greensand -
This morning's exercise ride was a 34 km round trip to collect another 20 kg sack of greensand. We've been using it with our house-plants, mixed with compost from the garden to start tomatoes, and here in the front garden it's levelled up the ground above our potatoes.
Over time, each sack permanently removes 20 kg of CO2 from the atmosphere and the process is beneficial to growing plants.
Three sacks make a very small difference to our historical emissions, but if I'm going to buy soil of some kind for the garden it may as well be this. I certainly won't buy #peat which would help to destroy an ecosystem somewhere and release CO2 into the atmosphere.
#olivine #greensand #weathering #enhancedweathering #regel17 -
Photos of this morning's recreational ride. It took an hour and ten minutes to ride 37 km, my average speed being pulled down by riding slowly into a farmyard at around the half way point to buy another 20 kg sack of olivine.
We've been using this sand-like ground up olivine in pot plants indoors and also in the garden to fill gaps.
Plants seem to grow well in it.
Olivine is one of several minerals which absorb CO2 from the air as they weather so my feeling is that if I'm going to spend money on something to put in the garden or use for planting indoors, why not use olivine which has a small positive effect on the climate?
#regel17 #velomobile #cycling #netherlands #bicycle #greensand #olivine #weathering #enhancedweathering #BikeTooter -
Hackaday Links: December 4, 2022 - Well, this is embarrassing! Imagine sending a multibillion-dollar rover to an anci... - https://hackaday.com/2022/12/04/hackaday-links-december-4-2022/ #hackadaycolumns #electricvehicle #ledstreetlights #hackadaylinks #lanedeparture #delamination #perseverance #charging #phosphor #spectrum #spoofing #artemis #olivine #jezero #orion #water #ev
