Tumgik
#Morrison Formation
Text
Tumblr media
Another sketch brought to you by #paleostream!
Barosaurus in the morning mist, smaller dicraeosaurs gather around the behemoth as well. Nanosaurus barely visible on the ground.
4K notes · View notes
joakinmar · 5 months
Text
Tumblr media
Ghost of the Colorado Rocks by Noel D. Hill.
479 notes · View notes
thecoffeeisblack · 1 month
Text
Tumblr media
A quick work in progress piece of Allosaurus jimmadseni.
278 notes · View notes
misterrogers22 · 3 months
Text
Tumblr media
This stegosaurus is awakened by a pair of neornithischians rooting around in the moonlight.
312 notes · View notes
redekpal3oart · 8 months
Text
Diplodocus carngeii
Tumblr media
Diplodocus is my favorite dinosaur ever. It was the first dino that made me like paleontology in the first place. Amazing animal
445 notes · View notes
makairodonx · 5 months
Text
Tumblr media
Digital sketch of Allosaurus fragilis
381 notes · View notes
actual-haise · 6 months
Text
Tumblr media
Diplodocus carnegii
271 notes · View notes
theantiazdarcho · 1 month
Text
Tumblr media
Stegosaurus stenops
86 notes · View notes
Text
Let's Talk About BENTONITE
There's nothing worse than minding your own business, walking along in the desert when all of a sudden your feet start to feel weighted down. It gets harder and harder to pick up your feet. The mud is sticky and pulling you into the ground. That's bentonite.
Tumblr media
Bentonite is type of very soft, plastic clay made primarily of montmorillonite clay.
Tumblr media Tumblr media
Montmorillonite is a hydrous, aluminum silicate in the smectite group (often you will hear bentonite and smectite used interchangeably).
Bentonite is formed by the alteration of volcanic ash when it comes in contact with water. Clays in general form from the chemical breakdown of feldspars (check out October's posts for more on feldspar!) and when ash gets thrown in the mix something very nasty occurs: swelling clays.
Bentonite increases greatly in volume when water is added...and decreases just as much when the water evaporates or gets absorbed in the groundwater system. This causes the popcorn texture you see in badlands topography.
Tumblr media
Popcorn texture in Brushy Basin Member, Morrison Formation, near Evil Tree Bonebed. Sauropod rib found in it.
This can also cause structural damage. That is why the building around the Wall at Dinosaur National Monument had to be repaired a few years ago. Basically, the swelling of the bentonite split the foundation.
Tumblr media
It also becomes very dangerous to drive on or walk on when it gets wet, becoming a slurry, sticky mess.
Tumblr media
This is the main reason why we have to wait for summer to come before we head out to the dig site. We physically cannot get there until the Mancos Shale bentonite is dry enough to drive on.
Bentonite is not all bad though. It has some good uses too.
Tumblr media
We actually use it to trap moisture in our skin and hair when we dry out. It's a natural sunblock and relieves burns and itching from bug bites. We even put it in Wendy's Frosty's to give them that smooth texture!
Tumblr media
Bentonite is also used in agriculture as a natural pesticide, herbicide, and fungicide in fertilizers.
They also use it to coat drills in the oil industry to keep the drill bit lubricated, as well as coating well walls to keep them from collapsing. If you're a geek, like me, think Avatar, the Last Air Bender and the Fire Nation drill.
Tumblr media
Hope you learned a little about bentonite today! Fossilize you later!
54 notes · View notes
a-dinosaur-a-day · 11 months
Text
don't worry, marine ecosystems are getting their own polls
152 notes · View notes
greenfrog04 · 10 months
Text
Fossils from the Brigham Young university's museum of paleontology in Utah!
Tumblr media Tumblr media Tumblr media Tumblr media Tumblr media Tumblr media Tumblr media Tumblr media Tumblr media Tumblr media
Fossils are from the Morrison formation and images are taken by someone i know.
100 notes · View notes
Text
Tumblr media
Another sketch brought to you by #paleostream
Go back, you disturbed the Brontosaurus!
2K notes · View notes
Tumblr media
Finished the brachiosaurus piece
I added Coelurus, a juvenile barosaurus and baby barosaurus also
14 notes · View notes
luxudus · 1 year
Text
Tumblr media
What was meant to be concept art for a school assignment turned into my first true piece of Paleoart
An Allosaurus fragilis wanders the savannahs of the Morrison Formation 150 million years ago. The black stripes contrasting with the bright & sandy patches help break up It's outline against investigative prey and conceal It's Eyes and Earth from fearless attackers
83 notes · View notes
elfraven · 6 months
Text
Tumblr media
Made a new more dynamic scale model for making refference scenes so expect this man in various dangerous situations (Species left to right: Ornitholestes, Mesadactylus, Docodon, Harpactognathus, and Kepodactylus)
22 notes · View notes
rabbitcruiser · 7 months
Text
Tumblr media Tumblr media Tumblr media Tumblr media Tumblr media Tumblr media Tumblr media Tumblr media Tumblr media Tumblr media Tumblr media Tumblr media Tumblr media Tumblr media Tumblr media Tumblr media Tumblr media Tumblr media Tumblr media Tumblr media Tumblr media Tumblr media Tumblr media Tumblr media Tumblr media Tumblr media
The Dinosaur National Monument was declared a national monument on October 4, 1915.
18 notes · View notes