April 10, 2026 at 8:04 AM
An isolated #fold in the beach.
#Paleozoic Formigoso Fm. (#CaboPeñas, #Asturias, #Spain). #foldfriday #fridayfold 🧪⚒️
#Paleozoic Formigoso Fm. (#CaboPeñas, #Asturias, #Spain). #foldfriday #fridayfold 🧪⚒️
December 6, 2024 at 7:06 AM
An isolated #fold in the beach.
#Paleozoic Formigoso Fm. (#CaboPeñas, #Asturias, #Spain). #foldfriday #fridayfold 🧪⚒️
#Paleozoic Formigoso Fm. (#CaboPeñas, #Asturias, #Spain). #foldfriday #fridayfold 🧪⚒️
Some cute little folds in Carboniferous sediments for #FridayFold #foldfriday!
#geology #sedimentary #structuralgeology
#geology #sedimentary #structuralgeology
November 29, 2024 at 3:36 PM
Some cute little folds in Carboniferous sediments for #FridayFold #foldfriday!
#geology #sedimentary #structuralgeology
#geology #sedimentary #structuralgeology
Beautiful folds in the PreCambrian Hakatai Shale Formation in the Grand Canyon Supergroup.
#photobyraykenny taken on the New Hance Trail, #GrandCanyon on March 21, 2022.
#FoldFriday #FaultFriday #geology #scape #landscape
#photobyraykenny taken on the New Hance Trail, #GrandCanyon on March 21, 2022.
#FoldFriday #FaultFriday #geology #scape #landscape
April 25, 2025 at 1:24 PM
Beautiful folds in the PreCambrian Hakatai Shale Formation in the Grand Canyon Supergroup.
#photobyraykenny taken on the New Hance Trail, #GrandCanyon on March 21, 2022.
#FoldFriday #FaultFriday #geology #scape #landscape
#photobyraykenny taken on the New Hance Trail, #GrandCanyon on March 21, 2022.
#FoldFriday #FaultFriday #geology #scape #landscape
#FoldFriday syncline and anticline in recently revealed glacially polished Neoproterozoic sandstones of the Windermere Supergroup, Eagle Valley in the Cariboo Mts near McBride BC 🪨⚒️
December 6, 2024 at 6:05 PM
#FoldFriday syncline and anticline in recently revealed glacially polished Neoproterozoic sandstones of the Windermere Supergroup, Eagle Valley in the Cariboo Mts near McBride BC 🪨⚒️
Here is a #landscape photo with amazing #geology. Across this lake is a large chevron fold with several normal faults. These meta-sedimentary rocks were compressed by intruding granites during the Mesozoic era.
#Scape #FaultFriday #FoldFriday #EastCoastKin #Sierra #nature #backpacking #photography
#Scape #FaultFriday #FoldFriday #EastCoastKin #Sierra #nature #backpacking #photography
April 18, 2025 at 2:42 PM
Here is a #landscape photo with amazing #geology. Across this lake is a large chevron fold with several normal faults. These meta-sedimentary rocks were compressed by intruding granites during the Mesozoic era.
#Scape #FaultFriday #FoldFriday #EastCoastKin #Sierra #nature #backpacking #photography
#Scape #FaultFriday #FoldFriday #EastCoastKin #Sierra #nature #backpacking #photography
Just a beautiful fold!! I hope even non-geologists can appreciate the beauty of what pressure can do to a rock. #FoldFriday #GeoscienceBluesky ⚒️🧪
December 12, 2025 at 12:39 PM
Just a beautiful fold!! I hope even non-geologists can appreciate the beauty of what pressure can do to a rock. #FoldFriday #GeoscienceBluesky ⚒️🧪
I studied #geology to understand how mountains formed. It still gets me arm-waving. Check out the dramatic Mitten Park Fault in Dinosaur Nat’l Mon. This thrust fault pushed older rock units over younger ones & happened during the Uinta Mtns uplift.
#FoldFriday
#FaultFriday
#appreciatepubliclands
#FoldFriday
#FaultFriday
#appreciatepubliclands
February 7, 2025 at 2:49 PM
I studied #geology to understand how mountains formed. It still gets me arm-waving. Check out the dramatic Mitten Park Fault in Dinosaur Nat’l Mon. This thrust fault pushed older rock units over younger ones & happened during the Uinta Mtns uplift.
#FoldFriday
#FaultFriday
#appreciatepubliclands
#FoldFriday
#FaultFriday
#appreciatepubliclands
November 15, 2024 at 6:58 PM
Anyone interested in bringing #FoldFriday to Bluesky?
Refolded folds, Eilde Schists, Loch Leven, Scotland. Keele Geology Collection.
⚒️🧪
Refolded folds, Eilde Schists, Loch Leven, Scotland. Keele Geology Collection.
⚒️🧪
August 16, 2024 at 5:30 PM
Anyone interested in bringing #FoldFriday to Bluesky?
Refolded folds, Eilde Schists, Loch Leven, Scotland. Keele Geology Collection.
⚒️🧪
Refolded folds, Eilde Schists, Loch Leven, Scotland. Keele Geology Collection.
⚒️🧪
1/2 here is a photo of upturned beds of the Redwall Formation & the Supai Group along the Butte Fault, Grand Canyon. The displacement is ~3,000 feet of offset! It is seen on the north side of the Colorado River between the Nankoweap Trail and Tanner Beach.
#FaultFriday #FoldFriday #geology
#FaultFriday #FoldFriday #geology
March 21, 2025 at 2:23 PM
1/2 here is a photo of upturned beds of the Redwall Formation & the Supai Group along the Butte Fault, Grand Canyon. The displacement is ~3,000 feet of offset! It is seen on the north side of the Colorado River between the Nankoweap Trail and Tanner Beach.
#FaultFriday #FoldFriday #geology
#FaultFriday #FoldFriday #geology
A recumbent fold in the Oligocene Schisti Sericitici in the Metamorphic Tuscan Nappe at Campocecina above Carrara, Italy #foldfriday
January 31, 2025 at 7:04 PM
A recumbent fold in the Oligocene Schisti Sericitici in the Metamorphic Tuscan Nappe at Campocecina above Carrara, Italy #foldfriday
July 4, 2025 at 4:26 PM
Here is a beautiful kink fold in Tapeats Sandstone in the Grand Canyon. It is a sharp angular hinge fold that looks like with a little more compression it could have been a thrust fault.
#FoldFriday #FaultFriday #GrandCanyon #nationalparks #parkchat #appreciatepubliclands
#FoldFriday #FaultFriday #GrandCanyon #nationalparks #parkchat #appreciatepubliclands
February 28, 2025 at 3:42 PM
Here is a beautiful kink fold in Tapeats Sandstone in the Grand Canyon. It is a sharp angular hinge fold that looks like with a little more compression it could have been a thrust fault.
#FoldFriday #FaultFriday #GrandCanyon #nationalparks #parkchat #appreciatepubliclands
#FoldFriday #FaultFriday #GrandCanyon #nationalparks #parkchat #appreciatepubliclands
Excited to share my first contribution to #FoldFriday! This isn’t a tectonic fold, but a fold formed by slumping within the layered Reinfjord Ultramafic Complex in Norway. The folded layers consist of dark websterite and yellowish dunite, showcasing the beauty of mush processes in magma chambers.
December 6, 2024 at 7:30 PM
Excited to share my first contribution to #FoldFriday! This isn’t a tectonic fold, but a fold formed by slumping within the layered Reinfjord Ultramafic Complex in Norway. The folded layers consist of dark websterite and yellowish dunite, showcasing the beauty of mush processes in magma chambers.
2/2 On the Arctic Circle Trail in #Greenland, the #geology was phenomenal! Here is a fault plane exposing an older folding event. Hot fluids migrated along this fault plane creating rare minerals & gemstones. We found many sapphires along this fault zone.
#foldFriday #ArcticCircleTrail #ACT
#foldFriday #ArcticCircleTrail #ACT
January 10, 2025 at 7:53 PM
2/2 On the Arctic Circle Trail in #Greenland, the #geology was phenomenal! Here is a fault plane exposing an older folding event. Hot fluids migrated along this fault plane creating rare minerals & gemstones. We found many sapphires along this fault zone.
#foldFriday #ArcticCircleTrail #ACT
#foldFriday #ArcticCircleTrail #ACT
Taken on Monday at Porth Dafarch #foldfriday #fridayfold
August 8, 2025 at 6:43 AM
Taken on Monday at Porth Dafarch #foldfriday #fridayfold
Okay, let's try to get the #FoldFriday back on here.
Here's the beautiful view at Skarsvåg, Norway, where I was back in 2018. Dog for scale. #RIP
⚒️ #Geology 🧪
Here's the beautiful view at Skarsvåg, Norway, where I was back in 2018. Dog for scale. #RIP
⚒️ #Geology 🧪
August 16, 2024 at 6:20 PM
Okay, let's try to get the #FoldFriday back on here.
Here's the beautiful view at Skarsvåg, Norway, where I was back in 2018. Dog for scale. #RIP
⚒️ #Geology 🧪
Here's the beautiful view at Skarsvåg, Norway, where I was back in 2018. Dog for scale. #RIP
⚒️ #Geology 🧪
It’s #FoldFriday and #FaultFriday! For those that are curious, here is a fault in the Tapeats Sandstone near Cremation Canyon in the #GrandCanyon. You can also see where the beds folded during movement along the fault.
#geology #NationalParks
#geology #NationalParks
January 31, 2025 at 8:27 PM
It’s #FoldFriday and #FaultFriday! For those that are curious, here is a fault in the Tapeats Sandstone near Cremation Canyon in the #GrandCanyon. You can also see where the beds folded during movement along the fault.
#geology #NationalParks
#geology #NationalParks
At the bottom of this photo, you can see squiggly/folded lines in the sandstone. This is called soft sediment deformation. It happens during or shortly after deposition & before rock consolidation. Possible causes: density differences when the sand was liquified or seismic activity. #FoldFriday
January 24, 2025 at 6:36 PM
At the bottom of this photo, you can see squiggly/folded lines in the sandstone. This is called soft sediment deformation. It happens during or shortly after deposition & before rock consolidation. Possible causes: density differences when the sand was liquified or seismic activity. #FoldFriday
#FridayFold or #FoldFriday idk but here's an anticline near Ozalenka Cabin in the Cariboo Mountains west of McBride BC
January 17, 2025 at 3:46 PM
#FridayFold or #FoldFriday idk but here's an anticline near Ozalenka Cabin in the Cariboo Mountains west of McBride BC
Folds in mylonitised tourmaline-rich granitic gneiss. Bedar Granite, Bedar-Lubrín road, Almería, Spain. #FridayFold #FoldFriday 🧪⚒️
November 29, 2024 at 4:05 PM
Folds in mylonitised tourmaline-rich granitic gneiss. Bedar Granite, Bedar-Lubrín road, Almería, Spain. #FridayFold #FoldFriday 🧪⚒️
Hello #foldfriday! Here are beautiful chevron folds in the Maverick Shale in AZ. These chevrons formed during the Mazatzal orogeny (process that builds mountains by compression) ~1.65 Ga. A fun hike to observe these features is the Barnhardt Trail in the Matzatzal #wilderness #appreciatepubliclands
January 17, 2025 at 8:32 PM
Hello #foldfriday! Here are beautiful chevron folds in the Maverick Shale in AZ. These chevrons formed during the Mazatzal orogeny (process that builds mountains by compression) ~1.65 Ga. A fun hike to observe these features is the Barnhardt Trail in the Matzatzal #wilderness #appreciatepubliclands
Archive photo for #FoldFriday #FridayFold. Soft sediment deformation folding overturning cross-stratified sandstone, picked out by tafoni (honeycomb weathering). Llangollen, Wales. 🧪⚒️
January 31, 2025 at 12:41 PM
Archive photo for #FoldFriday #FridayFold. Soft sediment deformation folding overturning cross-stratified sandstone, picked out by tafoni (honeycomb weathering). Llangollen, Wales. 🧪⚒️