#zircon — Public Fediverse posts

Monday, June 29, 2026

https://activitypub.writeworks.uk/2026/06/monday-june-29-2026/

Monday, June 29, 2026

https://activitypub.writeworks.uk/2026/06/monday-june-29-2026/

Monday, June 29, 2026

https://activitypub.writeworks.uk/2026/06/monday-june-29-2026/

Monday, June 29, 2026

https://activitypub.writeworks.uk/2026/06/monday-june-29-2026/

Earth’s oldest asteroid impact struck 3 billion years ago

In 2025, paleogeologists announced the discovery of the world’s oldest known asteroid impact. Trace evidence of the strike…
#NewsBeep #News #US #USA #UnitedStates #UnitedStatesOfAmerica #Space #asteroidimpact #ChrisKirkland #Science #zircon
https://www.newsbeep.com/us/722561/

Earth’s oldest asteroid impact struck 3 billion years ago

In 2025, paleogeologists announced the discovery of the world’s oldest known asteroid impact. Trace evidence of the strike…
#NewsBeep #News #US #USA #UnitedStates #UnitedStatesOfAmerica #Space #asteroidimpact #ChrisKirkland #Science #zircon
https://www.newsbeep.com/us/722561/

Wednesday, March 25, 2026

https://activitypub.writeworks.uk/2026/03/wednesday-march-25-2026/

Wednesday, March 25, 2026

https://activitypub.writeworks.uk/2026/03/wednesday-march-25-2026/

Wednesday, March 25, 2026

https://activitypub.writeworks.uk/2026/03/wednesday-march-25-2026/

Wednesday, March 25, 2026

https://activitypub.writeworks.uk/2026/03/wednesday-march-25-2026/

Wednesday, March 25, 2026

https://activitypub.writeworks.uk/2026/03/wednesday-march-25-2026/

Sunday, March 8, 2026

https://activitypub.writeworks.uk/2026/03/sunday-march-8-2026/

Sunday, March 8, 2026

https://activitypub.writeworks.uk/2026/03/sunday-march-8-2026/

Mineral Monday: Mobile- and Stagnant-lid Tectonics on the Hadean Earth Continents and recycled crust via subduction may have formed earlier than previously thought. (Valley JW, et al 2026: doi.org/10.1038/s415.... By John Valley #MSACommunications #MineralMonday #mineral #zircon #Hadean #JackHills

Mineral Monday: Mobile- and Stagnant-lid Tectonics on the Hadean Earth Continents and recycled crust via subduction may have formed earlier than previously thought. (Valley JW, et al 2026: doi.org/10.1038/s415.... By John Valley #MSACommunications #MineralMonday #mineral #zircon #Hadean #JackHills

Mineral Monday: Mobile- and Stagnant-lid Tectonics on the Hadean Earth Continents and recycled crust via subduction may have formed earlier than previously thought. (Valley JW, et al 2026: doi.org/10.1038/s415.... By John Valley #MSACommunications #MineralMonday #mineral #zircon #Hadean #JackHills

Mineral Monday: Mobile- and Stagnant-lid Tectonics on the Hadean Earth Continents and recycled crust via subduction may have formed earlier than previously thought. (Valley JW, et al 2026: doi.org/10.1038/s415.... By John Valley #MSACommunications #MineralMonday #mineral #zircon #Hadean #JackHills

Climatic And Anthropogenic Controls On Late Holocene Sediment Transport To The Gulf Of Mexico By The Mississippi River
--
https://doi.org/10.1016/j.earscirev.2026.105401 <-- shared paper
--
#water #hydrology #hydrography #humanimpacts #human #settlement #anthropogenic #levees #engineering #spatialanalysis #spatialtemporal #erosion #weathering #Mississippi #River #Sediment #Provenance #Zircon #grainsize #alluvial #alluvium #hydrogeomorphology #headwater #coast #coastal #delta #geology #Holocene #geochemistry #Sr #Nd #isotope #Strontium #Neodymium #detrital #climate #GulfofMexico

Climatic And Anthropogenic Controls On Late Holocene Sediment Transport To The Gulf Of Mexico By The Mississippi River
--
https://doi.org/10.1016/j.earscirev.2026.105401 <-- shared paper
--
#water #hydrology #hydrography #humanimpacts #human #settlement #anthropogenic #levees #engineering #spatialanalysis #spatialtemporal #erosion #weathering #Mississippi #River #Sediment #Provenance #Zircon #grainsize #alluvial #alluvium #hydrogeomorphology #headwater #coast #coastal #delta #geology #Holocene #geochemistry #Sr #Nd #isotope #Strontium #Neodymium #detrital #climate #GulfofMexico

Climatic And Anthropogenic Controls On Late Holocene Sediment Transport To The Gulf Of Mexico By The Mississippi River
--
https://doi.org/10.1016/j.earscirev.2026.105401 <-- shared paper
--
#water #hydrology #hydrography #humanimpacts #human #settlement #anthropogenic #levees #engineering #spatialanalysis #spatialtemporal #erosion #weathering #Mississippi #River #Sediment #Provenance #Zircon #grainsize #alluvial #alluvium #hydrogeomorphology #headwater #coast #coastal #delta #geology #Holocene #geochemistry #Sr #Nd #isotope #Strontium #Neodymium #detrital #climate #GulfofMexico

Climatic And Anthropogenic Controls On Late Holocene Sediment Transport To The Gulf Of Mexico By The Mississippi River
--
https://doi.org/10.1016/j.earscirev.2026.105401 <-- shared paper
--
#water #hydrology #hydrography #humanimpacts #human #settlement #anthropogenic #levees #engineering #spatialanalysis #spatialtemporal #erosion #weathering #Mississippi #River #Sediment #Provenance #Zircon #grainsize #alluvial #alluvium #hydrogeomorphology #headwater #coast #coastal #delta #geology #Holocene #geochemistry #Sr #Nd #isotope #Strontium #Neodymium #detrital #climate #GulfofMexico

Climatic And Anthropogenic Controls On Late Holocene Sediment Transport To The Gulf Of Mexico By The Mississippi River
--
https://doi.org/10.1016/j.earscirev.2026.105401 <-- shared paper
--
#water #hydrology #hydrography #humanimpacts #human #settlement #anthropogenic #levees #engineering #spatialanalysis #spatialtemporal #erosion #weathering #Mississippi #River #Sediment #Provenance #Zircon #grainsize #alluvial #alluvium #hydrogeomorphology #headwater #coast #coastal #delta #geology #Holocene #geochemistry #Sr #Nd #isotope #Strontium #Neodymium #detrital #climate #GulfofMexico

Cubic zirconia only forms under extreme temperatures, like those produced when an asteroid impacts Earth
#CubicZirconia #AsteroidImpact #MeteorCrater #Geology #NaturalZirconia #ExtremeHeat #ImpactCrater #Zircon #Minerals #NaturalPhenomena #RareMinerals
https://the-14.com/cubic-zirconia-only-forms-under-extreme-temperatures-like-those-produced-when-an-asteroid-impacts-earth/

Cubic zirconia only forms under extreme temperatures, like those produced when an asteroid impacts Earth
#CubicZirconia #AsteroidImpact #MeteorCrater #Geology #NaturalZirconia #ExtremeHeat #ImpactCrater #Zircon #Minerals #NaturalPhenomena #RareMinerals
https://the-14.com/cubic-zirconia-only-forms-under-extreme-temperatures-like-those-produced-when-an-asteroid-impacts-earth/

[Canadian Camper Planning A Trip] Saw A Suspicious Pit On Google Maps; Experts Say It Could Be A Crater From An Ancient [Meteorite Impact]
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https://www.cbc.ca/news/canada/montreal/quebec-meteorite-impact-crater-1.7313418 <-- shared media article
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http://www.impactearth.com/ <-- shared link to Impact Earth, an interactive map of impact craters and deposits
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https://doi.org/10.1016/j.earscirev.2022.104112 <-- shared paper on ImpactEarth
--
#GIS #spatial #mapping #Canada #Quebec #CôteNord #GoogleMaps #crowsourced #citizenscience #meteorite #impactcrater #topography #geomorphology #geomorphometry #sampling #zircon #mineralogy #geology #asteroid #geochemistry

[Canadian Camper Planning A Trip] Saw A Suspicious Pit On Google Maps; Experts Say It Could Be A Crater From An Ancient [Meteorite Impact]
--
https://www.cbc.ca/news/canada/montreal/quebec-meteorite-impact-crater-1.7313418 <-- shared media article
--
http://www.impactearth.com/ <-- shared link to Impact Earth, an interactive map of impact craters and deposits
--
https://doi.org/10.1016/j.earscirev.2022.104112 <-- shared paper on ImpactEarth
--
#GIS #spatial #mapping #Canada #Quebec #CôteNord #GoogleMaps #crowsourced #citizenscience #meteorite #impactcrater #topography #geomorphology #geomorphometry #sampling #zircon #mineralogy #geology #asteroid #geochemistry

[Canadian Camper Planning A Trip] Saw A Suspicious Pit On Google Maps; Experts Say It Could Be A Crater From An Ancient [Meteorite Impact]
--
https://www.cbc.ca/news/canada/montreal/quebec-meteorite-impact-crater-1.7313418 <-- shared media article
--
http://www.impactearth.com/ <-- shared link to Impact Earth, an interactive map of impact craters and deposits
--
https://doi.org/10.1016/j.earscirev.2022.104112 <-- shared paper on ImpactEarth
--
#GIS #spatial #mapping #Canada #Quebec #CôteNord #GoogleMaps #crowsourced #citizenscience #meteorite #impactcrater #topography #geomorphology #geomorphometry #sampling #zircon #mineralogy #geology #asteroid #geochemistry

Also, the #MinCup23 #zircon victory has been published if you’d like an appetizer while you ready your strategies for #MinCup24! Mineral Cup is coming September 1st!!

https://www.mineralcup.org/about/2023

Also, the #MinCup23 #zircon victory has been published if you’d like an appetizer while you ready your strategies for #MinCup24! Mineral Cup is coming September 1st!!

https://www.mineralcup.org/about/2023

New Geological Study Shows Scandinavia Was Born In Greenland
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https://phys.org/news/2024-03-geological-scandinavia-born-greenland.html <-- shared technical article
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https://doi.org/10.1130/G51658.1 <-- shared paper
--
“The oldest Scandinavian bedrock was "born" in Greenland according to a new geological study from the University of Copenhagen. The study helps us understand the origin of continents and why Earth is possibly the only planet in our solar system with life..."
#geology #structuralgeology #Scandinavia #greenland #finland #research #crust #mantle #zircon #gneiss #denmark #craton #lithosphere #shield #FennoscandianShield #Archean #Eoarchean #NorthAtlanticcraton #geologymap #mapping

New Geological Study Shows Scandinavia Was Born In Greenland
--
https://phys.org/news/2024-03-geological-scandinavia-born-greenland.html <-- shared technical article
--
https://doi.org/10.1130/G51658.1 <-- shared paper
--
“The oldest Scandinavian bedrock was "born" in Greenland according to a new geological study from the University of Copenhagen. The study helps us understand the origin of continents and why Earth is possibly the only planet in our solar system with life..."
#geology #structuralgeology #Scandinavia #greenland #finland #research #crust #mantle #zircon #gneiss #denmark #craton #lithosphere #shield #FennoscandianShield #Archean #Eoarchean #NorthAtlanticcraton #geologymap #mapping

When not writing stories about #zircon for #MinCup23 (hooray!), I can be found on occasion doing other #scicomm. This is from an event over the weekend at the #Australian Parliament House Open Day (to mark 35 years since the opening). Geoscience Australia were invited to tell the stories of the beautiful architectural #stone from around the world used in the design of the building (see examples in the picture). We also threw in some local rocks and #fossils and some of our awesome interactive tubs. It was a busy day but always interesting to talk to the public. Big thanks to the GA and APH organisers for a great day!

When not writing stories about #zircon for #MinCup23 (hooray!), I can be found on occasion doing other #scicomm. This is from an event over the weekend at the #Australian Parliament House Open Day (to mark 35 years since the opening). Geoscience Australia were invited to tell the stories of the beautiful architectural #stone from around the world used in the design of the building (see examples in the picture). We also threw in some local rocks and #fossils and some of our awesome interactive tubs. It was a busy day but always interesting to talk to the public. Big thanks to the GA and APH organisers for a great day!

Well heck. The winner I was expecting. (Can we have an unexpected winner next year? 🤣) congrats, #zircon! #MinCup23

Well heck. The winner I was expecting. (Can we have an unexpected winner next year? 🤣) congrats, #zircon! #MinCup23

#Zircon and #Perovskite are worthy adversaries. Congratulations!

Next year is the year of #sapphirine. Momentum is building -it received 100's of more votes than last year.

Go Blue! Go Sapphirine!
#MInCup23 #Granulite

#Zircon and #Perovskite are worthy adversaries. Congratulations!

Next year is the year of #sapphirine. Momentum is building -it received 100's of more votes than last year.

Go Blue! Go Sapphirine!
#MInCup23 #Granulite

Less than 4 hours remaining to recruit new players and ensure #Zircon is crowned #MinCup23 champion!

Less than 4 hours remaining to recruit new players and ensure #Zircon is crowned #MinCup23 champion!

#Zircon shock twins in zircon with planar fractures in Chicxulub quartz-monzodiorite dike. Do not be complacent #TeamZircon. Call your grandma and your Great Uncle Bob. Rally your colleagues and students. Pester your parents. Annoy your neighbors. This is it! We still need some zircon magic to keep the votes coming! #ZirconRemembers #MinCup23

Vote here: https://www.mineralcup.org/2023/campaigns/round-5-match-1

#Zircon shock twins in zircon with planar fractures in Chicxulub quartz-monzodiorite dike. Do not be complacent #TeamZircon. Call your grandma and your Great Uncle Bob. Rally your colleagues and students. Pester your parents. Annoy your neighbors. This is it! We still need some zircon magic to keep the votes coming! #ZirconRemembers #MinCup23

Vote here: https://www.mineralcup.org/2023/campaigns/round-5-match-1

Brilliant. You can assure this is the last time :) Come join the meme team, and vote for #TeamZircon #MinCup23 #Zircon

Brilliant. You can assure this is the last time :) Come join the meme team, and vote for #TeamZircon #MinCup23 #Zircon

Do you like sparkle? Gem-quality zircon has a higher refractive index than sapphires or rubies. Blue zircons are more expensive, and are usually are heat-treated. Do not confuse them with cubic zirconium. More here: https://marksingermandesigns.com/2016/12/14/five-essential-things-to-know-about-zircon-gemstones/

#ZirconsAreForever #MinCup23 #Zircon

Do you like sparkle? Gem-quality zircon has a higher refractive index than sapphires or rubies. Blue zircons are more expensive, and are usually are heat-treated. Do not confuse them with cubic zirconium. More here: https://marksingermandesigns.com/2016/12/14/five-essential-things-to-know-about-zircon-gemstones/

#ZirconsAreForever #MinCup23 #Zircon

#MinCup23 Enjoy FUN WITH ZIRCON - award-winning short video by Glasgow student Mirren Green, to accompany her final year lab project in 2019 😊 Vote zircon!!! #Zircon #Geology #Mineralogy #Iona #Lewisian https://youtu.be/W_GuozXgpR8?si=VmkehYZVqE2h_bqW

#MinCup23 Enjoy FUN WITH ZIRCON - award-winning short video by Glasgow student Mirren Green, to accompany her final year lab project in 2019 😊 Vote zircon!!! #Zircon #Geology #Mineralogy #Iona #Lewisian https://youtu.be/W_GuozXgpR8?si=VmkehYZVqE2h_bqW

https://www.mineralcup.org/2023/campaigns/round-5-match-1 And for chrissakes don't vote for #Zircon. It wins every year.

#MinCup23 #MineralCup

The time has come for me to bring up the time I had a picture with David Tennant, TimeLord.
Vote #Zircon #MinCup23 @MineralCup #TeamZircon

Voted for #perovskite because #zircon has an early, fast lead and at this point everyone is singing its praises. Pffft.

Anyway this #MinCup23 has been fun but I think I will pick a different criteria to vote on next year. 🤣 too many minerals don't fit "chaos" (by my admittedly somewhat arbitrary definition, but hey, aren't we all using somewhat arbitrary scales in the end? 🤣🤣)!

Also may perovskite win!!