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Geology Johnson
United Kingdom
Registrace 15. 12. 2012
Want to learn about the secrets written in the rocks? Then you're in the right place!
What is Ironstone? (and how did shrimp build a bridge?)
#Geology #Ironstone
Why is the Sydney Harbour Bridge made of poo? What does this tell us about ironstone, and what can ironstones teach us about Earth history?
Geologist Dr Brooke Johnson gives us a quick introduction to ironstones and how they form, and shows how the behaviour of living things million
or even billions of years ago, can influence the world we live in today.
Learn about the history of Cleveland ironstone mining - landofiron.org.uk/
Modern shrimp burrows and other animal traces - www.georgialifetraces.com/
T-shirts - www.geologyjohnson.com/
Music - open.spotify.com/artist/0gNkBLkRtlwCZhdvTDmymz?si=TJjZxy6iQeuy8sL5DykxqA
Why is the Sydney Harbour Bridge made of poo? What does this tell us about ironstone, and what can ironstones teach us about Earth history?
Geologist Dr Brooke Johnson gives us a quick introduction to ironstones and how they form, and shows how the behaviour of living things million
or even billions of years ago, can influence the world we live in today.
Learn about the history of Cleveland ironstone mining - landofiron.org.uk/
Modern shrimp burrows and other animal traces - www.georgialifetraces.com/
T-shirts - www.geologyjohnson.com/
Music - open.spotify.com/artist/0gNkBLkRtlwCZhdvTDmymz?si=TJjZxy6iQeuy8sL5DykxqA
zhlédnutí: 380
Video
The Boring Billion? A geologist explains!
zhlédnutí 795Před 4 měsíci
#geology #Precambrian What was the boring billion? Who decided it was so boring? Was it even real? Geologist Dr Brooke Johnson gives a quick guide to the (allegedly) dullest period in Earth's history. Garcia et al Carbon isotopes through time www.nature.com/articles/s41396-021-00971-5/figures/1 Javaux & Knoll 1.4 Billion year old eukaryotes pubs.geoscienceworld.org/jpaleontol/article/91/2/199/4...
What are Trilobites? A Geologist Explains!
zhlédnutí 2,1KPřed 5 měsíci
#Trilobites #geology Trilobites were one of the most successful animal groups in Earths history. But what are trilobites, when did they live, and where did they go? Geologist Dr Brooke Johnson explains in this beginners guide. Special thanks to trilobite expert and all round good egg, Dr Steven Pates. References General trilobite information www.trilobites.info www.alexstrekeisen.it/english/sed...
Why is Iceland volcanic, a geologist explains
zhlédnutí 255Před 5 měsíci
#Iceland #volcano Iceland is a highly volcanic island, but why is that? Geologist Dr Brooke Johnson explains why Iceland experiences so much volcanism, and what is behind the recent volcanic eruptions. Iceland meteorological survey - en.vedur.is/about-imo/news/a-seismic-swarm-started-north-of-grindavik-last-night Iceland national news - www.ruv.is/english/2024-01-14-grindavik-eruptions-401887 R...
What is amphibole, Hornblende, and asbestos? A geologist explains.
zhlédnutí 1,8KPřed 5 měsíci
#amphibole #minerals Geologist Dr Brooke Johnson gives a quick beginers introduction to the amphibole group of minerals including hornblende, and asbestos. Proterozoic Park shirts - www.geologyjohnson.com/ More information on amphiboles with lovely microscope pictures - www.alexstrekeisen.it/english/pluto/amphiboles.php Even more information on amphiboles with photos - geologyistheway.com/miner...
What is sandstone? A Geologist Explains
zhlédnutí 1,2KPřed 5 měsíci
#Geology #rockhounding What is sandstone? Geologist Dr. Brooke Johnson explains in this quick beginners guide to identifying and classifying sandstones. Proterozoic Park shirts - www.geologyjohnson.com/ Sandstone composition classification - www.geological-digressions.com/classification-of-sandstones/ Grain size chart - www.alexstrekeisen.it/english/sedi/grainsize.php Sedimentary rock informati...
What is Pyroxene? A Geologist Explains!
zhlédnutí 5KPřed rokem
What is Pyroxene? A Geologist Explains!
Dinosaur footprints from Jurassic Yorkshire
zhlédnutí 278Před rokem
Dinosaur footprints from Jurassic Yorkshire
Early Life Evolution and Traces - Astrobiology Lab Tour (my new job)
zhlédnutí 402Před rokem
Early Life Evolution and Traces - Astrobiology Lab Tour (my new job)
Geology Microbial Fossils tiktok roundup
zhlédnutí 193Před 2 lety
Geology Microbial Fossils tiktok roundup
What is basalt ? - A geologist explains
zhlédnutí 12KPřed 2 lety
What is basalt ? - A geologist explains
How to do geology field notes and sketches
zhlédnutí 2,7KPřed 2 lety
How to do geology field notes and sketches
How to take strike and dip a geologist explains
zhlédnutí 502Před 2 lety
How to take strike and dip a geologist explains
Jurassic Ammonite Fossil Hildoceras from Whitby
zhlédnutí 356Před 2 lety
Jurassic Ammonite Fossil Hildoceras from Whitby
Geology of Arran 2021 Part 4 Glen Sannox
zhlédnutí 449Před 2 lety
Geology of Arran 2021 Part 4 Glen Sannox
The Geology of Arran 2021 Part 3: The Laggan Loop Part 2
zhlédnutí 403Před 2 lety
The Geology of Arran 2021 Part 3: The Laggan Loop Part 2
The Geology of Arran 2021 Part 3: The Laggan Loop Part 1
zhlédnutí 535Před 2 lety
The Geology of Arran 2021 Part 3: The Laggan Loop Part 1
The Geology of Arran Part 1: The Corrie Shore
zhlédnutí 1,4KPřed 2 lety
The Geology of Arran Part 1: The Corrie Shore
Ediacaran and Cambrian Volcanoes fossils and mud
zhlédnutí 404Před 3 lety
Ediacaran and Cambrian Volcanoes fossils and mud
What is granite? A geologist explains!
zhlédnutí 34KPřed 3 lety
What is granite? A geologist explains!
What are zeolites?! A geologist explains!
zhlédnutí 14KPřed 3 lety
What are zeolites?! A geologist explains!
Jurassic Fossil Coral Reef in Oxford England
zhlédnutí 459Před 4 lety
Jurassic Fossil Coral Reef in Oxford England
What is Feldspar? A geologist explains!
zhlédnutí 11KPřed 4 lety
What is Feldspar? A geologist explains!
What are Carbonates? A Geologist Explains!
zhlédnutí 1,1KPřed 4 lety
What are Carbonates? A Geologist Explains!
What are these green crystals!? Geology Johnson Explains
zhlédnutí 167Před 4 lety
What are these green crystals!? Geology Johnson Explains
What is quartz? A Geology Johnson explains!
zhlédnutí 6KPřed 4 lety
What is quartz? A Geology Johnson explains!
'basalt is the second most boring rock on earth' 😂🤣😂
Cool, bringing the old old...old days to life!
Fantastico video if it weren't for the obnoxious background music. THANKS
- Most astute. Thank-you, Sir.
Why do sandstones stick to my skin when my skin is moist and the stone is dry, but it wont stick if the stone is wet and my hand is dry?
Love the info, but the music does not fit the geological subject. Feels like I'm raving
Sir, is basalt rock has a melting fusion?
Why is quartz so absent in meteorites and abundant on Earth?
Poor audio sound and Aussie accent hard to decipher
❤❤❤❤
do zeolite reacts with hcl?
I'm from Cornwall. We have granite everywhere. I've found a nice looking lump that has brassy/golden shiny bits in it. I'm trying to work out what it is. Well... I thought it was granite, but who knows?
Maps please,
we have a small mountain which has lot of quartz crystals , mostly the size of 2 inches for indicidual crystal and a foot with when they are all together, any suggestions as to if there was any volcanic activity nearby ? just want to know so that i can avoid falling in volcanic tubes if any , enjoying current crystal hunt . also want to know how these are formed ?
I really don't get why these rocks aren't more popular. I'm from the area and I've always found them mesmerising there's such a vast array of patterns in them. Kinda glad they aren't popular, though. Otherwise, there would be none left :')
My rock and mineral obsessed brain is on fire with the information in this video. 😅
Hey there. Do you happen to have any knowledge of Isle Royale Greenstone? Or all the green metamorphic rocks of all stages around Lake Superior? I have some pieces I would be happy to send your way to study :)
Great information I find granite, marble, theirs one area crushed up granite pink in colour started find broken pieces of crystal it has two clevige plans ,cream in colour with green and yellow, white is it feldspar, and white quartzite, orange, pink, theirs a gold coloured as well luv work
G'day really enjoying the information been out searching found egg shaped Basalt round boulders tennis ball size, soccer ball, cracked one open deep colbolt colour and slabs of Basalt some pieces I found Esky lid size 50mm to 100mm thick with 10mm holes straight through the basalt this place is a spur off the great didving range
Definitely check him out he’s a character and really knows his geology I always thought geologists were kinda like boring science teachers but I’ve learned there’s some really interesting geologists and Jeff’s right into it he’s hilarious
Great information on the old coat hanger and famous Sydney sandstone pylons on the are granite found some interesting specimens tday agate quartz petrified Wood some artefacts and quartzite and oaka different colours
The sandstone around the bridge has some lovely sedimentary structures too!
Thanks for the reply back im from Sydney original been in Queensland near the Bunya mountains home to the Bunya pine it's about 1200 mts above sea level it snow's there occasionally beautiful place tday I was out searching I go on horseback bottom of the hill in forest there is water there small creek and soaks and ancient river bed the piece's I found tday Quartz rock tennis ball size set in a sedimentary base of crashed Quartz this sample is as big as a kitchen chopping board the quartz rock in this sample are stained red iron oxide the other pieces I found are smooth white quartz stone's some are artefacts some are black and white banded and roses colour and transparent , these a hole bank wall full of those Quartz stones there one place in the forest I found they must have had heat there I call it the foundry the original people that lived there must have been melting rock I have found tool's that have been welded together again heaps of quartzite there as well this place is unique.
Good video big fella I watch a lot of Jeff Williams geology videos mostly for gold prospecting but it’s always nice to listen to straight geology
I don't know much about gold prospecting, maybe I should check him out.
Why are there so many amazing minerals in that town? Was that a wall made of larvikite?? 😮
It's cos off the Uni has a lot of money. Yup, the supermarket is made of larvikite!
@@geologyjohnson7700 that's AMAZING 👏
Awwwww I wish you could come look at my rocks 🪨 I have tonnes of them in my library 💚
Australian here, ive been there and i can confirm its definitely 💩
Lol! I didn't realise how big it was until I got there.
Omg the tiny hand 😂 im definitely subscribing 😂😂😂
I need to include Tiny Hand in more videos. Thanks for subbing!
"Checkmate rock-fondler" :D :D :D :D :D :D :D I like the way that the alchemists had various theories about metals growing within the earth... and how they were kinda, sorta right... but instead of weird astrological rays doing this it was actually hordes of crustaceans squeezing it out one turd at a time. :)
"Behold my mighty magics!" plop.
As someone who's studied a lot of those old texts i can confirm no one thought it was tiny animals pooping 😂😂😂 Paracelsus and St Hildegard would be very disappointed 😂
also looks like silver jubilee bridge Merseyside czcams.com/video/8SqMCDy8NXs/video.html
The best item a geologist could have in their kit would be a TARDIS.
Yes, I would love to have a TARDIS just to go back and watch things happen. Also, to get some nice peace and quiet too.
I love your style. Just the right depth too.
Thanks, glad you like the videos!
I have some lovely ironstone nodules from the Cleveland Dyke at Great Ayrton .Fascinating video. Have you seen the green iron deposits at Bradgate Park in Leicestershire?
Wow, cool! I've not been to GA in years. I have seen the green iron in Bradgate, we took the students there when I was at Oxford. :)
What's your favourite sedimentary rock? Mine is deffo ironstone.
Limestone!
Solid choice. But which kind of limestone?! One full of plant fossils? ;)
Mine could be agate because we don't know how it forms and possibly never will because there is no financial incentive. Same as Hawke's eye, although that is possibly a lot more simple and someone might do it as a thesis.
The beauty of science and especially geology is nothing is ever proven. It is simply what we think at this point in time. Even BIFs are open to argument with regards how and why they formed.
BIF, I have some wonderful raw specimens from the Pilbara in Western Australia. Heavily distorted with bands of what visually looks like golden metal. I have been told it’s metamorphosis of asbestos, I don’t know.
Heat causes melt or glass. Basalt has a crystalline structure. How can basalt cool with crystal formation from lava or magma?
If the molten rock has the right chemistry, and it cools at the right rate, then the cooling melt will crystalise.
@@geologyjohnson7700 That would occur underwater under high pressure from the water depth, such as in the observed submarine basalt columns from Puna Ridge, Hawaii. Otherwise, what you're describing is that terrestrial basalt was formed underwater at great pressure depths, such as during the great flood (when fountains opened up such as diatremes) or the creation of the earth which was initially covered in water (Genesis 1:2). Otherwise, lava would cool into mostly glass under less pressure, such as obsidian or pumice. Correct? Example, Devil's Tower in Wyoming, is in a crater. The Tower itself is an intrusion from a diatreme. See: nps gov/ deto / learn / nature / tower-formation htm Thus if basalt is the most common rock, then it occurred underwater under pressure. Magma itself has never been observed. What has been observed is quakes before lava eruptions, meaning the quakes cause friction which causes liquid rock or lava which gets squirted to the surface.
I’m 74 and watching Journey to the center of the Earth and he tells the kid to eat his Trillobytes so I just wanted to know what they were. but I think you’re pretty interesting so I subscribed and I push the light button and I’ll look you up again geology, Johnson oops I’m sorry I forgot the name. I’m getting ready to look up the word scisht as well hopefully you will answer that one too. Either way it was interesting. Thank you.
Glad you like the videos. That's a fun film. I will be making a video on schist soon because it can be a confusing term!
After 1 minute my brain started dribbling out of my ears. I think my brain is past it and could do with metamorphosing into something better. That would be gneiss..... (sorry).
Lol, you never need to apologise for geology puns.
I think I just found my favorite geological terms, dykes and sills. 😅
Is it wrong to use granite for our homes?, I’m feeling a bit guilty right now.
Nope, if it's in your house then you get to enjoy how nice it is.
@@geologyjohnson7700 , great, thank you for replying! :)
I pronounce pyroxene the same way you do. But my American geologist friend makes fun me. He says its "peerowseen".
Yeah, they often say things different. My american colleague calls it "Piro zeen" and pyrite as "Pir ite". He swears it's the correct pronunciation. I've never heard the way your friend says it though!.
@@geologyjohnson7700 he corrects my pronunciation all the time and told me his peers can tell the book read people from the professionals based on certain words. arrogant pricks.
Nice
Thank you for sharing. It's great that you are showing that geology is accessible to everyone, no matter how our brains are wired.
Glad you liked the video. I want everyone to know that science is accessible to anyone who is interested in it. :)
Greetings from the Copper Country of Michigan on the Mid-Continent Rift of central North America. We see lots of pink feldspar deposited in the vesicles and fissures in the 1.1 billion year old basalts that are everywhere here. We call it "K-Spar". 😁
Oh exciting! I'll get round to visiting that area one day! Some of the rocks I work on are around that age.
I have a clear stone with algae fossil inside of it. Can anyone tell me anything about it.
I might be able to if you can show me photos of it.
I'm enjoying the information just I have been finding some quartzite funky colours, size,golf ball,foot ball car house,and what you where explaining in the video are there as well I find from dark purple to black this is metamorphic has it been cooked from to much heat and pressure here molten activity all your three rock are .
Sounds like you've found some really interesting rocks!
Hello from Alaska. Just subscribed 🎉🩵💎
Hello from Wallonia. thanks for subbing!
There has a value sir?we have a same rock here in the philippines.
Sometimes it can be gem quality, but I am not knowledgable about the valuation of gems.
ditempat saya ada feldspar.
Hey, are you from the university of Liège ? Since Miss Javaux is your boss ?
Yep, I currently work at UoL
The Boring Billion: mostly made of duller-mite
😂
Hi, great video I would really love your help! Blue granite, is it formed near volcanic activity? I'm not a geologist so I'm not sure if I'm saying it correctly lol Why can't have magnetic properties?
Blue granite isn't really granite, it's a common name marketing name for different kinds of blue igneous rocks such as monazite and larvikite. The blue colour comes from minerals like sodalite, and labradorite. These rocks crystalise slowly from magma deep underground like a granite does, but they don't have enough aluminium or silica to be classed as granites. Still very nice to look at though. They are not magnetic because the don't have enough elemental iron or magnetic minerals in them like magnetite. Instead, the iron in these rocks is in the silicate minerals so it's not magnetic.
@@geologyjohnson7700 awesome thank you so much for the run down!
@@CrispySkates No probs, always happy to talk about rocks. :)