Discover and read the best of Twitter Threads about #geology

Most recents (24)

Want to learn about the rocks of Mt #Everest and the #EBC trek? I am a geologist and did a couple of roadside lectures and field observations on my trek; here are some of the cool rocks l found. 1/n #geology #Himalayas #Nepal #adventure #Science #academia #nature
Over 50 million years ago, there was an ocean between India and Eurasia, the Tethys ocean. The ocean closed and the two continental plates collided forming the Himalayas. The Himalayas are still growing today! 2/n
Imagine being pressed between two continental plates! That pressure forms metamorphic rocks that can be categorized into how much pressure was applied to the rock. At low pressure, former mudstones from the bottom of the ocean become slate: grey, flaky rocks. 3/n
Read 10 tweets
Daily Bookmarks to GAVNet 02/02/2022 greeneracresvaluenetwork.wordpress.com/2022/02/02/dai…
A Billion Years of Time Are Mysteriously Missing. Scientists Think They Know Why.
vice.com/en/article/wxd…
#GrandCanyon, #geology, #GreatUnconformity, #TectonicModel
What Happens Next in Ukraine Could Change Europe Forever | Time
time.com/6143009/ukrain…
#InternationalRelations, #russia, #ukraine, #europe
Read 20 tweets
Issue #36: The Genesis of “Ledger Money” and the Modern Financial System

maroonmacro.substack.com/p/issue-36-the…

#LedgerMoney, #FinancialSystems, #DevelopmentTimeline
Modern culture blames parents for forces beyond their control | Aeon Essays

aeon.co/essays/modern-…

#culture, #essay, #AdultChildren, #ParentalEstrangement, #blame, #psychology, #responsibility
Read 17 tweets
Going to thread up some pix from today's #geology hike at #VasquezRocks.
(Why are those rocks right there? We'll get to that...) 🧵 In midground, tilted sandstone rocks lit up by the setting s
Here is a descent into a canyon in S end of park. That's where the geology story gets really wild.
Here's a view of a tree from a ridge where I measured strike and dip of the layers using a compass. Yellow green fall foliage tree lt up by back-angle sun. In f
Read 28 tweets
Daily Bookmarks to GAVNet 09/24/2021 greeneracresvaluenetwork.wordpress.com/2021/09/24/dai…
COVID-19 is evolving to become more airborne, says recent study

jpost.com/health-and-wel…

#COVID19 #variants #AirborneTransmissibility
winter is coming, and the vaccine narrative is about to shift

boriquagato.substack.com/p/winter-is-co…

#COVID19 #seasonality #vaccinations #surges #winter #consequences
Read 8 tweets
Daily Bookmarks to GAVNet 08/16/2021 greeneracresvaluenetwork.wordpress.com/2021/08/16/dai…
Scientists Pin Down When Earth’s Crust Cracked, Then Came to Life

quantamagazine.org/scientists-pin…

#geology #PlateTectonics #life #evolution #origin
Next generation electronics: Expanding the possibilities with silver nanowires

phys.org/news/2021-08-e…

#electronics #nanowire #TechnologyDevelopment #materials
Read 8 tweets
#Geology Shiny ore deposit, pretty sure it‘s iron?
#ironore / pig iron in clay?
Area: Europe, North Switzerland
Read 4 tweets
LOS VOLCANES DE OLOT Y CHARLES LYELL

Uno de los lugares más especiales de la #geología peninsular, la zona #volcánica de #Olot (#Garrotxa, #Girona), recibió en el verano de 1830 la visita de uno de los grandes referentes de la #geología moderna (va #hilo👇).

#geosites #geology
1- Pues sí, quizá no se trate de los más espectaculares del mundo, pero ¿cuántas ciudades conocéis cuyo casco urbano se extiendan a los pies de tres #volcanes? #Lyell debió considerarlo también notorio y llegado el momento quiso comprobarlo en persona.
2- #CharlesLyell (1797-1875) nació precisamente en #Escocia el mismo año en que moría otro gran geólogo de la época, el escocés #JamesHutton. Una curiosa coincidencia, como la existente entre #Galileo (1564-1642) y #Newton (1642-1727). Casualidades…!
Read 11 tweets
Daily Bookmarks to GAVNet 06/23/2021 greeneracresvaluenetwork.wordpress.com/2021/06/23/dai…
Community-level evidence for SARS-CoV-2 vaccine protection of unvaccinated individuals

nature.com/articles/s4159…

#COVID19 #VaccinationRate #transmissibility #protection #unvaccinated
New research into the spreading of infections reveals need for greater collaboration between biology and physics

phys.org/news/2021-06-i…

#biology #physics #research #infections #spreading #collaboration
Read 8 tweets
Happy 130th Birthday to us!

The TTFNC was founded on July 10th 1891 in order to: “...give pleasure to its members by observation of animal, insect and plant life in Trinidad”.

This thread will revisit some key milestones in our long history! 1/n #130yearsofTTFNC Image
In 1892, the first issue of our peer-reviewed journal was published as an outlet for our members to publish interesting and novel #NaturalHistory observations. It continues to this day as "Living World, the Journal of the TTFNC". ttfnc.org/livingworld/in… 2/n #130yearsofTTFNC Image
The first issue of our journal included J. E. Tanner's breakthrough discovery that #leafcutter #ants (locally known as #bachacs) cultivate fungus & feed it to their larvae, rather than eating the leaves directly as previously thought. 🐜🌿🍄3/n #130yearsofTTFNC ImageImage
Read 27 tweets
FIRST UP: #1 ranked Saber-Toothed Anchovy (Monosmilus chureloides) Vs. #16 ranked Planktonic Copepod (Cyclops bicuspidatus). Tonight's battle brought to you by @MarcKissel and me! #2021MMM
Planktonic Copepod are zooplankton, a large group of organisms whose name means "animal drifter". They can be found in almost every body of water. #2021MMM Image by MarekMiś, CC BY 4.0 via Wikimedia Commons Cyclops - one of the copepod representatives . MarekMiś, CC
To give you some idea of the diversity here, there are ~ 13,000 species of copepods ("oar-feet") plankton alone. They are able to use their oar-like appendages to move through the water and are mostly bottom-dwellers #2021MMM
Read 12 tweets
Heads up: Iceland has been monitoring #volcano unrest at #Reykjanes Peninsula. #Aviation color code orange due to quakes & indications of shallow magma dike. If an eruption occurs, ash hazard may affect North Atlantic air #travel. en.vedur.is/weather/aviati… #geology #weather Image
"Suspense in Iceland as dormant volcanic zone shows signs of life" by @physorg_com - volcanologists say a #Reykjanes eruption would likely be more lava than ash; not expecting repeat of 2010 Eyjafjallajokull #aviation #travel disruption phys.org/news/2021-03-s… #volcano #geology
"Sleeping Giant: Earthquakes And Volcanoes In #Reykjanes" by @rvkgrapevine - volcanologists describe how the peninsula's eruption history shapes expectations of possible volcanic activity to mostly lava flows, not explosions/ash grapevine.is/mag/feature/20… #Iceland #volcano #geology
Read 45 tweets
JohnBrady @smithcollege, is a pedagogical master! He just has finished his free and amazing online #petrology #teaching tool! GREAT online #lecture material for #geographyteacher #geology #MetamorphicGeology and many more

@SchornSimon @GeodynamicsG @EGU_GD @UniGraz @ETH_ERDW
Check your "Jiscmail" inboxes! I think you might be interested in some of the online teaching tools John Brady provides!
@KeepItRheol @KeelePetrology @ign_petrology @petrochronics @PetroFactory @petrology @petrologyslides @petrologychonn
Read 3 tweets
🧵For #MosaicMonday (aka #MillefioriMonday!) it's got to be these: the pyramid mounts from @NT_SuttonHoo. Made of cloisonne goldwork, garnets & coloured glass, these were the first gold artefacts found during the 1939 excavation 1/ britishmuseum.org/collection/obj…
📷@britishmuseum Image
As shown in #TheDig, they were found by Lily James's character #PeggyPiggott, who was born in Kent in 1912. She was an experienced archeologist when she arrived @NT_SuttonHoo, she had studied @Cambridge_Uni & @UCLarchaeology, directed her own dig & published several papers 2/ Image
Her career spanned 60 yrs & she is recognised for her field methods, research into prehistoric settlements, burial traditions & artefact studies (particularly glass beads). She reconsidered #FigsburyRing & a bequest from her helped us to acquire meadowland around Silbury Hill 3/ Image
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Believe it or not, the Batman is real. Well, it’s more like a man who was the Bat. This character was beloved by those who knew him. While the story of Robert Douglas Lancey starts in the woods of NH, #OTD in 1944 it takes a dark turn in the unlikeliest of places. A #WWII thread. Image
On July 20th, 1941, Robert donned a crazy costume at @camptakodah. He looked like a cartoon bat. His job was to surprise the campers and have them chase him. But, no one could catch Robert no matter how hard they tried. He was too fast, too good, and too clever to be caught. Image
Robert, a dedicated Boy Scout and respected summer camp leader, with a distinctive long face and a “pug nose,” would go on to win a great many personal challenges that he faced well beyond the sanctity of a place that truly is “friendly to all.” Image
Read 25 tweets
Daily Bookmarks to GAVNet 11/07/2020 greeneracresvaluenetwork.wordpress.com/2020/11/07/dai…
Scientists work to shed light on Standard Model of particle physics

phys.org/news/2020-11-s…

#light #particle #physics
How US Presidential Elections Are Impacted By Geology

forbes.com/sites/davidbre…

#geology #elections
Read 8 tweets
New paper explaining why and how carbonatites host REE mineralisation is now out in @ScienceAdvances and it's #openaccess!
doi.org/10.1126/sciadv…

#rareearths #geology

Thread:
One of the issues with REE in carbonatites is that although carbonatites are obviously high temperature igneous, the mineralisation itself always seems to be low temperature (400 °C and lower).
So most of the research so far was focused on what ligands mobilise REE at these low temperatures. People suggested fluoride, chloride, carbonate, and others. The aim was to understand what concentrates REE from an entire carbonatite body to a high grade localised deposit.
Read 22 tweets
Poetry host Larissa Reid @Ammonites_Stars has been fascinated with geology since she was a child. She spent six years volunteering with the Scottish Geodiversity Forum (now @scottishgeology) and founded and runs the biennial Hugh Miller Writing Competition. #TopTweetTuesday
Poetry by our host from Scotland, Larissa Reid @Ammonites_Stars #time #memory #landscape #nature #poetry #scottishpoetry #geology 💎

‘I slip from dream to real to back’
Read 3 tweets
I've never quite been the same since I learned about trovants. These are rocks, actual rocks, that not only 'grow' but MULTIPLY.
The most famous example can be found in the tiny village of Costeşti in Valcea County, Romania. Known locally as the 'living stones' they have been the backdrop to folktales for millennia.
Indeed they have been there much longer than people, coming into existence due to a series of earthquakes some 6 million years ago.
Read 10 tweets

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