Scientists discovered a massive water reservoir 700km below Earth's surface, holding three times the volume of surface oceans, challenging existing theories about the origin of Earth's water. #geology #News
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From one side a very small hole in a rugged & rocky geological formation is noticed. This view offers a small oval patch of sky blue through it. There are three or more patches of blossoming desert scrub vegetation growing on this rocky facing of the ridge of craggy stone. The vegetation is brightly lit by the sunlight.
In this view, a larger opening of an arch becomes apparent, after climbing up the harsh & craggy rock ridge. In looking through the hole of the archway is a patch of blue sky beyond the mountainous view that's now visible through it!
A vertical framing of the previous horizontal composition. This view contains the entirety of the arch/archway and its very rocky hole. It's a very-very brightly lit representation of the multi-colored geological formation.
Finally we are looking at the arch from its other side! The sky is blue but filled with whispy white clouds, looking the opposite direction! This geological formation looks entirely different from this side! Most of the rock is visible but darker. The rough upper stone archway is brightly lit. This backside of the ridge is mostly of a gentle grassy rise, up to the arch! You can walk right up to the formation, unlike the difficult climb up the ridgeline from the arches other side. (The grassy rise up to the formation isn't visible in this representation of the formation. Please note this; however it is worth mentioning the ease of the approach of the rock formation. Perhaps on this side of the ridge it was once a gravel or sandy beach of the ancient Lake Bonneville. The lake covered much of the Great Basin thousands of years ago.)
#Stunday #OnlyBeautifulThings #stunning #undocumented #arch #arches are #numerous where #LakeBonneville #beaches 1nce were #erosion #GreatBasin #phonetography #geology #nature #ECK #EastCoastKin #photography #BlueskyPhotography #desert #WestCoastKin #wilderness #PhotographersOfBluesky #discovery
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View across a landscape with relatively recent volcanism. A stream of block lava is covering the bottom part of the frame. The middle part contains a mountain slope rising from right to left, covered in volcanic ashes, giving it a distinctively smoother appearance than the lava stream in the foreground. A single conical volcano is rising over the slope in the left half of the image, exposing vibrant red and orange colors of the lapilli on its slope. The sky above is clear and bright blue. The image is composed based on the rule of thirds, with the volcano in the background as the anchor point at 1/3 from the left and from the top, and the foreground with the lava stream, the mountain slope in the middle and the sky each covering one third of the frame in vertical direction.
The fascinating beauty of volcanos
#photography #outdoor #nature #landscape #geology #volcanism #volcano #lava #mountain #colors #colorful #vibrant
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Geologists’ Day greeting card showing two geologists overlooking a quarry in a mountainous landscape. In the foreground are a rock hammer, map, compass, field notebook, binoculars, and several rock and mineral samples, with an oil rig in the distance.
Happy ⛏ #GeologistsDay ⛏
celebrating those who read the Earth like a book and reveal its hidden history, layer by layer.
🔎 Every first Sunday in April, it signals the start of field season - after winter, geologists return to 🧭🥾 expeditions, 📓🖍mapping, and 🌋 discovery.
#Geology #Geoscience
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What is your favorite rock? (No precious gems allowed). I lean toward malachite.
#geology
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When I was a kid, there was something called “Rock of the Month Club” where you got a rock/semi-gem each month. It got me into geology and was fun. A quick search shows it still exists (or a variant of it.)
Actually, there were a bunch of fun “__ of the Month Club”s you could sign up for.
#geology
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Not surprising at all, but first time I'm seeing an example of reaction diffusion patterns in granite:
fed.brid.gy/r/https://bsky.app/profi...
#ReactionDiffusion #Geology
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Happy Easter to those who celebrate! Perhaps you are making a big meal like our rock buddy Metaquartzite? (He's often used in fancy kitchen countertops!)
Rock Buddies, our upcoming game! www.catlilli.com/rockbuddies
Art by Taylor Bock. #rocks #geology #EarthScience #minerals #boardgames
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Old style Easter greeting card
Happy Geo-Easter! ⛏️🥚
¡Felices Pascuas!
Joyeuses Pâques!
Buona Pasqua!
Glad Påsk!
Fasseh Majeed!
May your day be gneiss, your eggs well sedimented, and your chocolate discoveries truly rock!
#GeologyRocks #Easter #geology #art
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Image description: A mountain landscape, a historical cityscape with a tree, and a vibrant abstract pattern. A camera icon and EGU logo. Text reads: '' EGU Photo Competition 2026 , Apply by 8 April 2026!".
#EGU Photo Competition 2026: only ONE WEEK left to submit!🫣
If you are registered for #EGU26, you can submit images related to #geology or #geoscience and receive a 🎫 free registration to the EGU 2027!
👉 Submit by 8 April 2026. : egu.eu/1CJPHE
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A cluster of Pink Fluorite Octahedrons, a colorful geometric masterpiece! #minerals #geology #earthscience #crystals #artgallery #pink #miniature #crystals
A cluster of Pink Fluorite Octahedrons, a colorful geometric masterpiece!
#minerals #geology #earthscience #crystals #artgallery #pink #miniature #crystals
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Multi Terminated Aquamarine. Erongo Mountain, Usakos District, Erongo Region, Namibia 🧪 #gemstones #gemstone #minerals #geology #earthscience #crystals #artgallery #rainbow #minerals #mineralspecimen #natural #rocks #rockhound
Multi Terminated Aquamarine. Erongo Mountain, Usakos District, Erongo Region, Namibia
🧪 #gemstones #gemstone #minerals #geology #earthscience #crystals #artgallery #rainbow #minerals #mineralspecimen #natural #rocks #rockhound
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Always wondered why the Flemish hills are so steep? Check out our recipe of how to make a Flemish hill #Geology #RondevanVlaanderen
youtu.be/Sq-AvUHGKf4?...
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Happy International Geologist's Day! Now for real.
Below are the Easter-most igneous rocks out there. The orbicular granite slabs near the Department of the Earth Sciences in Uppsala University.
🧪 ⚒️ #Geology
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Hand carved Hebridean earrings on Sterling Silver fittings carved and polished slowly in the Outer Hebrides
Some lovely new earrings up on the site..
The #IsleofHarris to more or less anywhere on Earth
#earrings #jewellery #scottishjewellery #highlands #IsleofSkye #IsleofLewis #Glasgow #Edinborough #Aberdeen #Inverness #UKMakers #Geology #Gneiss #Tartain #Iona #Silver
www.gneiss-things.com/earrings
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Holding a fairy large rough stone, with brassy gold areas
Close up on a rough stone. It has white jagged areas and brassy gold shiny areas
The stone again with white and metallic areas
A smoother grey stone. Two rectangle indents are visible on one side
Rocks!! Found on the beach today, west coast Canada
I'm pretty sure the first is pyrite and maybe calcite? The other I don't know, but it has neat copper-hued square indentations.
#geology #rocks #pyrite
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Shape of different eggs drawn to the same size: A–G, nonavian theropod dinosaur eggs (A–B, Macroelongatoolithus; C, Elongatoolithus; D, Oviraptoridae; E, Citipati; F, Segnosaurus; G, Troodon); H, Sankofa, the new Montsec egg type; I–P, avian eggs (I, unnamed fossil egg from Bajo de la Carpa Formation, Neuque´n, Argentina, attributed to an Enantiornite bird by Schweitzer et al. 2002). J–P, modern birds: J, Aepyornis; K, condor; L, swan; M, murre; N, lesser scaup; O, red-tailed hawk; P, hen). Scale bar represents 1 cm.
Preliminary results of the analysis of the egg morphospace, based on the four shape parameters c0–c3 of the egg morphospace from Barta and Szekely (1997). The 16 eggs from Figure 7 are distributed in a 3D graphic according to their three principal components (PC1–PC3, explaining 95.4 per cent of the total variance; see Table 3). Note the sharp difference of the eggshape- component distribution between modern birds and nonavian theropod dinosaurs. The new Montsec egg type (Sankofa pyrenaica oogen. nov. oosp. nov.) fits between both shape groups, as well as the Enantiornitine bird egg from the late Cretaceosus Bajo-de-la- Carpa Fm, Argentina (Schweitzer et al. 2002).
Oldie but Goldie.
Interesting study which reveals the morphospace of dinosaur eggs, including shape contrasts between non-avian dinosaur eggs and the bird eggs.
onlinelibrary.wiley.com/doi/epdf/10....
🧪 ⚒️ #Geology #Paleobio #EvoBio
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Putative trophic structure of the Chaohu Fauna (Spathian, Early Triassic), briefly compared with that of the latest Smithian fish faunas
Summary of coprolite morphotypes identified from the Chaohu Fauna, Majiashan, Chaohu, China.
When fossil shite speaks up:
"The coprolite record reveals a multi-tiered trophic structure in which marine reptiles had already occupied meso- and apex consumer roles by the Early Triassic."
www.sciencedirect.com/science/arti...
🧪 ⚒️ #Geology #Paleobio #EvoBio #Macroecology
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A close up of Mount Rainier in the distance looming over nearer green forested mountains that slope down to a valley below. Mount Rainier, or Tahoma shows only it's upper snow capped flanks, coating both rocky ridges and the surfaces of glaciers. The sky is a pale blue, with only one cloud making a puffy smudge away from Rainiers summit.
A close up of Mount Saint Helens south side with snow down to the forests on it's lower flanks. These forests did not get destroyed in the 1980 eruption like everything on the North side of the mountain. The mountain and it's lower flanks take on shades of blue because of the distance of about 30 miles. It's left side shows less features than it's right side due to the sun angle which is coming from the far left, and low. The right side shows many furrows and creases that are left overs from the scarring made by hot mud flows roaring down during the 1980 eruption. Dark exposed rocky ridgelines show more on this side as well. The foreground dense green forested mountainsides show a few rocky ridges sticking out of the forest. Long shadows lead down to the valleys below on the right flanks. The sky over the mountain is a pale blue without clouds.
A wider photo with both Mount Saint Helens (to the left), and Mount Rainier (To the right before a small alpine evergreen in the foreground). The sky over the two massive snow clad mountains is almost cloudless, except for a small cloud to the right of Mount Rainiers summit. The nearer mountainsides are almost covered in green forest, with deep shadows on their right side. The sun illumination is from the left and low. So the big mountains both show shading on the right sides. In the immediate foreground is a fairly flat area with lichen covered outcroppings of stone jutting out of the ground. Small tough shrubs poke up between the stone in patches. And a small evergreen tree is on the right edge, it's white bark is visible between sparce tough limbs that are all short and horizontal. The plants have adapted for a lot of snow and wind at this place.
One of the peaks that make up Silver Star Mountain in Washington State. The peak is very cone shaped, lit from the right, and crisscrossed by a trail switching back and forth across it's flank facing us. A little snow is visible on the cones left side in the sunlight. Above the rocky peak are faint high clouds low down in the otherwise blue sky, and a jet contrail from the upper left side to the corner upper right diagonally. A few trees are on the right slope (three). Along a foreground slope, more tall green alpine conifers descend down a shallow draw down to the right. A gray wide trail leads from the lower left into the trees, then turns toward them and disappears around a nearby corner. The while landscape is covered in low tan dormant grasses, and lighter green small brush and green moss covered stones.
I'm going to cap off the fun hike pics from Silver Star Mountain with a four pick of the surrounding mountains, and one of the peaks at Silver Star.
#hiking #Mountains #PNW #Rainier #Tahoma #MtStHelens #Alpine #Snow #Forests #BlueSky #EastCoastKin #CascadeMountains #Volcanos #Geology 🧪 🏔️
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Kayaker in an orange kayak floats down the river with a sheer cliff covered in white salt deposits.
Where ancient waters seep out of the rocks. Evidence of ancient salty water can be found in Tapeats Sandstone, in the form of salt deposits left behind as groundwater percolates through rock. Remnants of mineral-rich water from ancient beach & river sediments.
📷: P Struyvenberg #gcnp #geology
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How magnetic is the moon? A new study cracks the long-standing mystery. Researchers believe rock samples taken from the Apollo missions gave scientists a misleading impression. www.theguardian.com/science/2026... #astrophysics #geology #science #SciChat
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Earth’s Magnetic Field Flipped 43 Million Years Ago — Was There an Impact on Life? Via @discover.magazine #seismology #EarthScience #RocksForJocks #Geology #Space #Astrophysics #OrbitalMechanics #Astronomy 🚀 🌌 ☄️ 🛰️
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A new study in #Geology uncovers evidence that massive undersea volcanic eruptions—marine large igneous provinces—may have been a major, underrecognized driver of extinction throughout Earth’s history.
Read the paper: geosociety.co/Fan_et_al
#MassExtinctions #Volcanism #Paleoclimate
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Researchers discovered that massive lava flows & collapsing lava ponds at Axial Seamount reveal how underwater eruptions reshape the seafloor. scitechdaily.com/scientists-u... #geology #oceanography #science #SciChat
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Wooden floor looking like columnar joints
Rosengarten in Bamberg
Today the humans were on #hedgewatch in #Bamberg the hometown of the famous Tomcat Murr. They visited again this wooden floor at the #Rosengarten because it #rocks 😹 It looks like #ColumnarJoints as you can find in #basalt.
Humans #PawForScale
#geologywithcats #geology
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Welp. If this holds water, a lot of textbooks are going to have to be rewritten.
Researchers at the Jiangchuan Biota in Yunnan, China, excavated approximately 700 fossils between 2022 and 2025, revealing complex animal life existed between 554 million and 539 million years ago, at least 4 […]
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Meet the coolest rock on the block - Gneiss! Good at handling heat and pressure, Gneiss is featured in our upcoming board game Rock Buddies!
www.catlilli.com/rockbuddies
Art by Taylor Bock. #rocks #boardgames #geology #minerals #NMNH
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