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1000 results for “silicatefondue”
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Talk this afternoon by Kathryn Smith, Dalhousie University at #GSAConnects:
Creating groundwater-sourced thermal refuges in rivers to adapt to a warming world
191: T21. Environmental and Engineering Geology Division II
Tues., 17 Oct. 2023, 1:35–1:50 p.m.
https://gsa.confex.com/gsa/2023AM/meetingapp.cgi/Paper/392393Smith and coauthor Barret Kurylyk added cold pumped groundwater to a Nova Scotia stream to aid spawning salmon and trout.
#GeoSociety #Salmon #DalhousieUniversity #EarthSystemScience -
Katie Maloney (#McGillUniversity) is presenting today (Monday) at #GSAConnects at 5:15 pm.
She's in the session: 125: T68. Temperature, Oxygen, and Their Synergistic Effects on Animal Ecosystems
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Monday and Wednesday early-career presenters at #GSAConnects in #Pittsburgh
*Katie Maloney*
Early Tonian Macroalgal Ecosystems from Northwestern Canada
(125-14) Monday 5:15 pm*Charlotte Spruzen*
Complex Neoproterozoic Microbial Reefal Frameworks in the Callison Lake formation of Yukon
(223-9) *TODAY* 10:25 am#McGillUniversity #EarthSystemScience #GSA2023 #GeoScience #GSAConnects2023
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Proxy evidence for a hot summer: the Aji peppers are ripening a month earlier than usual...
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A very productive hour spent learning about Earth's primary productivity (organic molecules produced) over time via a talk by Peter Crockford, Carleton University.
Fun fact: every carbon atom has likely be cycled through an organism ~100 times over the last 3+ billion years!
Crockford et al., The geologic history of primary productivity, Current Biology (2023), https://doi.org/10.1016/ j.cub.2023.09.040
#CarletonU #McGillUniversity #Photosynthesis #EarthSystemScience #Proterozoic #Geology
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Congratulations to @natalyagomez for her 2023 #IUGG Early Career Scientist award. From Natalya Gomez's citation:
"for her seminal contributions to our understanding of the connections between the cryosphere and sea level change, at the border of geophysical and climate sciences."
#McGillUniversity #Cryosphere #Geophysics -
de Maissoneuve bike path is now closed for two blocks for next week, due to the F1/Crescent Street festivities.
I've been avoiding Sherbrooke due to the poor road surface, but not any more.
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limpet teeth, a composite containing #goethite, are the strongest known biological material in tension -twice as strong as spider silk.
#MinCup23 #Limpet #Minerals #Materials
https://daily.jstor.org/worlds-strongest-material-limpet-teeth/Rumney, R.M.H., Robson, S.C., Kao, A.P. et al. Biomimetic generation of the strongest known biomaterial found in limpet tooth. Nat Commun 13, 3753 (2022). https://doi.org/10.1038/s41467-022-31139-0
Open Access
https://www.nature.com/articles/s41467-022-31139-0 -
#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 -
#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 -
#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 -
An amazing month of mineral facts, photos, and fun. The organizers of #MinCup23, @MineralCup have done an astounding job of keeping everything straight and maintaining the enthusiasm. Thank you!
Thanks also to www.MinDat.org for their support and resources.
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An amazing month of mineral facts, photos, and fun. The organizers of #MinCup23, @MineralCup have done an astounding job of keeping everything straight and maintaining the enthusiasm. Thank you!
Thanks also to www.MinDat.org for their support and resources.
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An amazing month of mineral facts, photos, and fun. The organizers of #MinCup23, @MineralCup have done an astounding job of keeping everything straight and maintaining the enthusiasm. Thank you!
Thanks also to www.MinDat.org for their support and resources.
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An amazing month of mineral facts, photos, and fun. The organizers of #MinCup23, @MineralCup have done an astounding job of keeping everything straight and maintaining the enthusiasm. Thank you!
Thanks also to www.MinDat.org for their support and resources.
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An amazing month of mineral facts, photos, and fun. The organizers of #MinCup23, @MineralCup have done an astounding job of keeping everything straight and maintaining the enthusiasm. Thank you!
Thanks also to www.MinDat.org for their support and resources.
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#UtrechtUniversity #EarthSystemScience #Geology
One more Friday early-career presenter at the #Goldschmidt2023 conference #Lyon:*Alissa J Kotowski* (Utrecht University)
Low-temperature plate boundary serpentinization post-dates subduction initiation and facilitates obduction of an Appalachian ophioliteSession 4fO2 09:30 CEST
Field work at Mont Albert, Gaspé Peninsula, #Quebec done while at #McGillUniversity. #Ordovician #TaconicOrogeny
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#McGillUniversity #EarthSystemScience #Geology
Friday's early-career presenters at the #Goldschmidt2023 conference #Lyon:*Matthew Tarling*
Deciphering the combined structural and mineralogical record of serpentinite fault rocks
Session 4fO2 09:15 CEST*Jillian Kendrick*
Field observations, petrography, geochemistry, and phase equilibrium modelling: The four pillars of petrological investigations of crustal differentiation
Session 4dO1 11:15 CEST -
#McGillUniversity #EarthSystemScience #Geology
Monday & Tuesday's early-career presenters at the #Goldschmidt2023 conference #Lyon (late notice):*Kathryn Rico* now at Arizona State U
Combining trace metal geochemistry and experimental microbiology to explore the role of dissimilatory Fe(III) reducing bacteria in precursor Banded Iron Formations*Maxwell Lechte*
Palaeoredox and environmental constraints on early eukaryote ecosystems: insights from the Greater McArthur Basin, northern Australia -
Repost from Adriana Guatame
(@adriguatame.bsky.social):
With #kyanite I always remember this video created by Stacey Phillips via the Mineralogical Society (the LEGO stop motion science videos) -
New Year's Eve sadness, part 2:
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The trail of color leading up to the #MinCup24 Grand Final...
#BlueMinerals #PinkMinerals #MineralsArrangedByColor #Minerals #Geology
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A mantle xenolith (dunite) infiltrated by mafic melt on the left side. The melt has crystallized clinopyroxene, as shown by this electron backscattered diffraction image. Each pixel's data is a diffraction pattern that can determine mineral type and crystallographic orientation.
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Katie Maloney spoke about the 950 million year old algae fossils from the Wernecke Mountains, Yukon Territory, Canada. She's reconstructing the biosphere and the spread of eukaryotes at a time before shells or any other hard parts evolved.
#McGillUniversity #EarthSystemScience #FossilFriday #Proterozoic #Yukon -
From Barb Dutrow, LSU:
...we announce the passing of a metamorphic petrology legend, Michael J. Holdaway on March 21, 2025, at 89 years.Mike is perhaps best known for his meticulous experiments on the Al2SiO5 system and for developing the andalusite weight loss method for determining reaction direction. At Southern Methodist University his work provided experimental constraints on the triple point of the polymorphs for the first time.
#Metamorphic #ExperimentalPetrology #Geoscience #Mineralogy -
#Neptunite is one of a few calcium-free titanium silicates (incl. benitoite). Seems like an obscure fact but:
#Zircon includes titanium in its structure, as a function of temperature; this can be a #geothermometer.
To standardize a microbeam analysis (like laser ablation ICPMS), we need a mineral with a known composition, lots of titanium and silica and no calcium, which has an isotope at mass 48. Neptunite and benitoite are perfect for this.
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#Neptunite is one of a few calcium-free titanium silicates (incl. benitoite). Seems like an obscure fact but:
#Zircon includes titanium in its structure, as a function of temperature; this can be a #geothermometer.
To standardize a microbeam analysis (like laser ablation ICPMS), we need a mineral with a known composition, lots of titanium and silica and no calcium, which has an isotope at mass 48. Neptunite and benitoite are perfect for this.
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#Neptunite is one of a few calcium-free titanium silicates (incl. benitoite). Seems like an obscure fact but:
#Zircon includes titanium in its structure, as a function of temperature; this can be a #geothermometer.
To standardize a microbeam analysis (like laser ablation ICPMS), we need a mineral with a known composition, lots of titanium and silica and no calcium, which has an isotope at mass 48. Neptunite and benitoite are perfect for this.