Explosive Volcanic Lakes from Recent Eruptions in Australia
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- Опубліковано 27 сер 2024
- Australia isn't thought to be volcanically active by many people. After all, why would it be? It's a relatively tectonically stable continent, with no nearby rifting or subduction events. This isn't the case, though, and Australia claimed the title for having the third largest volcanic plain in the world in the past 7 million years. With it taking that short amount of time for Victoria to claim that title, due to the massive amount of basaltic eruptions that occurred en masse here, which more or less altered more than half of the state.
This video is about the massive conglomerate of volcanic lakes that exist in an incredibly vast amount of land in Victoria's South West. As Ballarat ends, the volcanic activity increases, and eventually, the many cinder cones that dude the land of Victoria, begin to fade away as the mass of volcanic lakes take over. These lakes, had a very explosive origin. Some of them, however, weren't forged as a result of the volcanic eruption itself, but by lava flows that were released by one of the many shield volcanoes, or cinder cones, that exist everywhere. These lava flows buried the ancient arterial water system that existed in Victoria, flattening the land in the process with each subsequent eruption, leading to water pooling and to many of the larger lakes forming as a result of this. With that being said, though, some massive lakes are directly explosive in origin, too, such as the many that exist around Colac.
We'll take a look at the area of land where this massive basaltic interaction with water occurs, leading to steam explosions, also called phreatomagmatic eruptions. Basalt is normally a very fluid lava, that is non-explosive, and effusive in nature. When it mixes with water, though... it becomes the complete opposite. An explosive slurry of molten death.
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OzGeology is an Australian-based UA-cam channel that specializes in creating high-quality documentaries on Earth sciences and natural disasters. The content is designed to be easy to digest and covers a wide range of topics, not only focusing on geology but occasionally exploring other scientific areas as well.
Wow. You've been cracking the whip. Well done. Again, riveting and amazing . I love your passion
Thanks so much, Deborah! I'm just getting started :)
I drive around that area of Victoria for work, driving past all those volcanic structures. Some of those lakes are incredibly salty. Some so salty they absolutely stink. One one hand, you go “Oh, that’s interesting. All those single hills are volcanos, and three quarters of the lakes are explosion craters, and they are all long extinct.” But then you realise there are active thermal springs north at Daylesford and Hepburn, and west over the border at Mount Gambier, so something is still hot under there. Also, although many of these eruptions happened millions of years ago, Bunninyong and Mount Elephant happened in the after the indigenous Australians came to the area. Their eruptions are in the Dreamtime stories of the Wadawurrung peoples.
Wow…interesting Re the dream time stories. Thanks for mentioning this.
Definitely stuff still going on, we still can't figure out why the trees on Mt Warrenheip are suddenly dying off without any reason. I'm not sure if that's correlated to anything, but I just find it strange that this is happening and we seem to have no reason that's pest or fungal related. I'd imagine (or at least hope) someone measures deep ground temperatures around there but in all honesty the volcanic nature of Victoria isn't really taken seriously and probably won't until the first major wakeup call happens, which will be at some point in the next few thousand years in my opinion. I love the dreamtime stories of the volcanic eruptions though, some of my favorite stuff to read through for sure. Thanks for sharing!
@@OzGeologyOfficial Couple that up to the Tsunami.... Move over Noah....
@@OzGeologyOfficial I'm currently literally in the shadow of Warrenheip, and hadn't noticed the die back. Might have to take a look. If I get an Easterly wind and smell sulphur/hydrogen sulphide, I'll let you know soon after I hightail it out of here. Mind you, I'd be more worried about Buninyong, as it erupted in the local tribe's verbal history, but Warrenheip was half a million years before humans got here from my understanding. I saw on an ABC video hosted by the elder Uncle Bryon Powell, where he stated that originally Warrenheip was only covered by ferns, which is where it got it's name. Warrenheip meant emu feathers. Maybe Mother Nature is just returning the mountain back to what it was. Maybe, by making it a reserve, preventing people from cutting trees or digging the soil, is allowing it to do it's thing. Let's hope so. An angry vent right next to a rural city would really ruin the atmosphere and lower property values.
You nailed it brother. Well phucken said. Rory, Tasmania. @@roscius6204
Love these videos thanks for your time and effort for creating these for us
Glad you like them! My pleasure! Thanks for watching :)
Victoria... my favorite place for evidence of mega-disasters
were do you live?
@@japdog9 Timboon, Nullawarre, Port Campbell, Peterborough, Allansford and Warrnambool are my old stomping grounds before I made the mistake of moving to the Big Smoke.
@@Preview43 nice , im close by , nice to know something happened here . glad i didn't see it . i left the big smoke ,😃
Awesome video! Thank you, certainly explains why my neck of the woods looks the way it does.
Glad you enjoyed it and got something out of it! Thanks for watching!
This is my part of the world 😍 Awesome video. Thank you 🙏❤️
My pleasure Gryph!😊 So glad you enjoyed this!
Your videos are always interesting, they teach me stuff about the land I live in instead of stuff from overseas. Keep up the good work , two thumbs up.
Thanks, will do! So glad you're enjoying this Jaime!
I really do love your videos, esp those on Victoria!
Growing up in the Wimmera I’ve always been curious about our ancient river systems and would love a bit of history on Mount Arapiles as well as I struggle to find much info on it myself. If you could point me in the right direction I’d very much appreciate it but all good if not … or if you reckon there’s just not much to tell then i’m still cool and will happily take your word for it! Thank you for ALL the work you put into your videos. I find each one so fascinating and have learnt so much about things, and place, that I just love!
Thank you heaps!!
2 very enthusiastic thumbs up from me!!,👍👍
Love it man… love it!! ✊
Thank you!!
😃😃😃😃😃
i camped on a private property at Mt Arapiles, i kept thinking this looks like old ocean sand and when i got back home i researched it, once it was a shallow sea. Great place but if you camp up there from May to August it can get to -5 i found out the hard way. I have never been that cold, beyond awful.
Thank you so much Vanessa! You can find a lot of info on Mount Arapiles using Geological maps (if that's what you're after?) Otherwise shoot me an email with your question and I'll get to ya very soon. I'm playing catchup at the moment with them all :) Cheers Vanessa!
So is it possible that the recently covered mega tsunami hit Mt Gambier when it was still a volcanic plain??
Another great vid BTW..Luv ya stuff. I hope you have a great new year. Peace out.
Very possible indeed! It's possible the event might've even triggered the eruption as one commentor pointed out! The two happened around the same time hahaha
I love these videos. They are quite fascinating and informative.
Glad you like them, Eric! Thank you so much for watching!
my hometown is within this area, nice to know disasters are so close to home
glad to see you back in Victoria,,,,,,,,,,,very interesting😁
The story of the glasshouse mountains in QLD would be cool for a future video
A focused few QLD videos would be great, there's a lot of interesting geologic history that really varies east to west and north to south
Agreed! I'll get to it very, very soon!
*_I live in Central Washington State - America..._*
Millions of years ago enormous fissures opened up and Flood Basalt buried the entire region. There were many different flows over many millions of years. In places the Basalt is over a mile or more thick. What was left was a flat landscape that eventually was uplifted in a series of Anticlines.
*_Today we can see many layers of Basalt where rivers have carved through them on their march towards the sea._*
The Wrangelia large igneous province!
@@jorgesuspenso5105 Thanks for comment
Very amazing stuff. I'll visit there some time in the near future. It's on my list!
@@OzGeologyOfficial When you have to view the 'evidence' from space because it is so vast, you know you are in for a treat.
Maybe not so destructive as your Indian Ocean Asteroid Strike and Mega Tsunami, but still plenty impressive what moving water can do.
Bad enough it happened the first time, but it happened dozens of times. Hundred cubic miles of bedrock removed and swept down stream all the way to Pacific Ocean.
Thanks for the great video. I am exploring around Mt Buffalo and Hotham in the next few months and was wondering if you had already covered that area in a past video (knowing a lot of activity has occurred in Nth East Victoria and I have seen some content about the goldfields from late last year). I love anything you do about Victoria being Victorian of course lol and selfish about Victorian content but am still fascinated by ALL your content.
Not yet! But it's on the way! Uploads are about to ramp up tremendously so I'll be able to cover many areas and I'm definitely intending to! Thank you so much as always, Audrey, seriously, I appreciate your support so, so much!
@@OzGeologyOfficial awesome 👏
I had 0 interest in geology until I found your channel. Keep up the great work. Absolutely fascinating stuff!
Mate, this is the compliment of the day. Thank you so much! I was the same hahaha. Not a single interest till much later.
four to five thousand years ago? Imagine having the exploding volcanoes and the massive tidal wave at the same time
Yes true. Wow
True, actually I never thought about that LOL I wonder if the comet spurred the eruption forth. You may be onto something!
Love your videos... I have a feeling they piss some people off 😃
They bloody better or I'm not doing my job right!
Excellent video. Please do video about the Mariana Trench and for past effects of ruptures, especially on east coast of Australia.
Another awesome video bro
Glad you enjoyed it buddy! Thank you so much my friend!
great video mate so all of these volcanoe eruptions have a lot to do with the amount of gold in Victoria? If so surely W.A had some ripper ones too or could it be ancient mountains just eroded away over millions of years?.
Most of the gold near the Great Divide (such as Ballarat) is in "Deep leads", essentially creeks rich in gold that were buried by volcanoes. Once you get properly north of the divide (such as Castlemaine), the *alluvial* gold was not buried by volcanic events, so the reefs it came from and the creeks it eroded to are more easily accessed. The very deep gold at Bendigo is still in reefs and the hugely rich goldfields in eastern Victoria Woods Point, Walhalla, etc have other origins.
I agree Dave. Also there are two completely distinct oregenic timeframes that gold was deposited/eroded in east and west Victorian terrains. Rory, Tasmania.@@Dave_Sisson
It may look like a Caldera but its actually called a Maar Crater
A maar crater is a caldera lol.
Great stuff Love your Volcano vids. Is that all crown land in Victoria that all the lakes lay on?
I'd have to double check but normally they are! If you're keen on the prospecting side of things I'd say definitely do it. Don't ever let undiscovered areas stop you from exploring them, as long as it's legal and on public land and not a claimed land it's definitely always worth a crack. At worst you'd end up with some pretty nice semi-precious basalt derived gemstones and at best you might make a crazy discovery.
Ever since I was a kid, I used to believe all the stories I was told about the rock fences around Stonyford being built by convicts using the rocks spat out by Tower Hill which is quite far away. From this video, it's obvious all the rocks came from the volcanoes of Lake Corangamite which is really just a "stone's throw" away to the north.
I'm surprised that was told haha. There's a ludicrous amount of volcanoes around that area, it's possible it was another volcano right near there instead. The lava flows are ludicrous in their thickness and reach. Thanks for sharing mate! :)
The Land of 10,000 Lakes of the South
We need Canberra region geological history
Most of it is made up of volcanic limestone from Gondwana days lad
This is an amazing video as Always. I have a question if it is possibole to make a video about Olympus mons on mars eruptionens? 😊
Yes! Definitely mate! I'll add it to the list. I've never done any space related stuff and that was something I wanted to do ages ago. Great suggestion buddy and thanks for the support like always mate!
@@OzGeologyOfficial i am studing on uni to become an astronomer so yeah i am also intrested in space :)
Wow, Oz your lakes region looks very similar to Florida's landscape! Are there sinkholes in Australia, like in the watery parts of the U.S? Very informative! Thanks for another great video!
hi yes, not him but live here, sometimes they do , a little west in limestone country ,they get sinkholes . hope ur ok , snow is heavy this year
@@japdog9 Thanks Paul!
Yup! Many sinkholes! I'll hopefully be covering these soon :)
@@OzGeologyOfficial HA! I may be too scared to watch that one, ahahah!
@@OzGeologyOfficial please include Inskip Point in Qld if you cover sinkholes.
Mount Leura appears as if it erupted just a few decades ago, there is scoria everywhere and only limited signs of weathering.
🧡👍🌋🏞 Thank you again! Riveting! 😊
Lake Corangamite was primarily formed by damming of surface drainage to the East (Warrion & Red Rock Complex), West (Stoney Rises) & South - Whilst there are volcanic complexes including Maars close by & one cinder cone & tuff ring located in the Southern part of the lake North of Pirron Yallock - There is little or no evidence of the series of Maar craters that you indicate in your graphic. Additionally the deepest part of L. Corangamite is 7-8m below the surface when in flood & has been much less than that since the 1980's . The lack of subsurface topography further indicates that this feature is not primarily of explosive or phreatomagmatic origin. For better examples I would suggest Lakes Bullen Merri/Gnotuk, Purrumbete, Elingamite, Keilembete, Wangoom & Tower Hill. All of these features are phreatomagmatic in genesis & the key factor that binds them together is the presence of hydrated limestone between 20 & 50m below the current ground surface & exposures of said limestone bedrock in the craters & inside the tephra ejected by the explosions that formed the maars.
I appreciate the comment! Always love to see this kind of discourse So thank you for sharing, I will factor in what you have said. I've read the ground differently using magnetics, which I suspect might change the way we read such a complicated place as Lake Corangamite. The image was meant to serve as more of an idea of how these types of eruptions might've formed these kinds of calderas, rather then a pinpoint of how it looked. I will ensure to greater articulate that fact in the future! Cheers mate!
In 1926 the Victorian mines department published an excellent account of the history of deep lead mining in the big V, there were over 130 major deep lead mines operating between 1870 and 1910, some with up to 1500 or more men working underground over distances of several kilometres employing the bord and pillar mining process developed in Wales and Germany. These mines recovered several million ounces of Au averaging 5 to 30 grams per Tertiary river bed but there is likely 100 times more left than what was first recovered. Love your vid interpretations mate, you are out there. Rory, Tas.
Digging around Mt Duneed just South of Geelong. The clay there is peppered with some real big basalt 'floaters', boulders that clearly got some air back in the day.
Thanks
Thank you so much for the support, Andrew! So glad you got something out of this mate :)
The Land between Lancefield and Tooborac Victoria is absolutely astounding. Full of green pastures and giant boulders. A lot of natural springs there as well.
Thanks for doing the very interesting videos u produce. I was taught there are no active volcanos in Australia. New technologies seem to find much more evidence of volcanos.
Awesome
Great video
Glad you enjoyed it, Holly! Thanks so much for the amazing support as always 😊
They use thermal water at the Lady Bay resort in Warrnambool so there's thermal activity. Not sure how deep they had to go.
That imprisoned gold under Mt Gambier needs some freedom and democracy. I'm ringing Newcrest!
Damn straight it does! Hahaha!
That last shot looked like Devils kitchen.
Do to you k ow much about the qestern australian super volcano that produced the western sheild formation
I think I may have an idea of which one you are referring to. Do you have some coordinates I can pop into google maps?
Can you please do a geologic explanation of the vertical rock layers at Walhalla in Victoria. How they were formed. I've always been curious
I'll look into it and get it added to list :) Thanks Helen!
@@OzGeologyOfficial I would really appreciate that. I visit there frequently and it has always fascinated me. Can't begin to imagine the process. My thoughts are it has to have been a cataclysmic force that did it! And roughly hoe long ago?
Ballarat. Wasn't there a gold rush there in the 1850s or 1860s?
Yup! Major one. It lasted a lil longer then that but happened in waves, and is currently experiencing somewhat of a resurgence.
@@OzGeologyOfficial Where where in relation to Ballarat is Lassiter's Reef supposed to be located? From my understanding it is the Australian equivalent of the Lost Dutchman's Mine.
@@Eric_Hutton.1980 - Lassiters reef is maybe 3000 km from Victoria. Supposedly somewhere in the region of the NT/WA border. Uluru is probably the closest landmark. Bare in mind, nobody has been able to find the fabled Lassiters reef, at least nobody has advertised they have found it.
@@lunsmann Thanks.
I must say I've never watched a video explaining the geology of my area and actually seen part of my property and my wife's previous property. 2.52 far right middle of screen on the other side of Mt Pisgah. Fly over of Miners Rest Clunes road just outside of Miners Rest. Could I pester you for an approximate timeline of when our particular area was active???
Hahahaha, that's actually quite hilarious. All of this has been within the past 7 million years but I'd say the area you're at was one of the more recent spots. Possibly the past 2 million years. Might still be active too!
@@OzGeologyOfficial thanks mate. I just looked at my wife and said “we might have to sell!!!”. She spoke to a geologist when she owned 100 acres on the north side of Pisgah. He was studying the whole area from the top of the hill and said it was all one gigantic caldera at one point and the “Bald Hills” around us were all vents inside it.
Any chance on doing something on how Port Phillip Bay was created? I read something somewhere that it's only about 500-1000 years old and before that the sea stopped at the heads and the Yarra ran all the way out
Definitely going to do that, there was a damming that occurred there too for a period of time so I'll cover that as well.
We really need to talk .love the show . Do you read this . I hope so . 🙏✌️👌👍
I do!
Can you do geology of mount Major and mt saddleback? Near Cosgrove
wow last volcano in Australia was only 4000 years ago , I wonder if the southern aboriginal tribes around there have any stories passed down about that event
They sure did! Some very fascinating accounts of it!
Any chance you could start linking the citations for the stated theories and facts? Cheers.
If you get a chance, could you look at the Warrumbungles in central northern NSW.
The area was apparently a massive shield volcano. But never much else said.
Definitely, thanks for letting me know, I'll add it to the list!
Also mount canobolas
@@matiusclicarelli700 Mt Canobolas would be a great topic. I grew up near there. All the info I see about, never much interest in Canobolas or Warrumbungle’s ancient past
@OzGeographics @Synevo 001 iam local to that area and just about to finish my 1st trimester of physics100 as an undergraduate hopefully to a future geology degree and before I explore the world I want to explore my backyard..
So come on #OzGeographics please do #Synevo100 and my requests 🙏
"An explosive slurry of molten death." lol
The evolution of the earth is incredible. Religion aside anyone that can’t see the development of the earth’s atmosphere, oceans, soils, plants & animals to coincide
with the emergence of man beggars belief.
I noticed a
Anomaly a volcano and within 150 maybe 200 I'm away is the same shaped HOLE OR CRATER
And a small crater right in the middle . . Could a asteroid ro meteor crack the Earth's crust .
Nice, but are you pronouncing basalt right?
I don't know if there is one active volcano in Australia. I even think non existense of it. I only see New Zealand and other Oceania islands that is more and having volcanic eruptions in history like Taupo.
"Literally designed for grazing animals"??? Huh? Designed by who?
Onyá Kobblerzz 👍 👍 ✔
so many Victorian interesting messages ,are we so starved of geology and answers ?,,,,welll yes ,,yes we are .
im sure you get a jump in the ratings when you showcase Victoria . keep up the good work on Victoria, or i will tell your mom your a bad boy , and you will get grounded .😃😃😃
Great vid mate, 50 bucks via paypal for the great work. Gonna get me some gold.
Mate you are seriously the best. I'm gonna add your name to the end screens for all future videos mate, seriously. I appreciate the support so much. A lot of gold content will be coming out, I'm a bit obsessed at the moment mate, been testing 2 theories of mine and it's why I've been unable to spend much time on here, because I'm out in the bush in places that don't have reception digging holes lmao. I'm getting some good early preliminary results that I'd love to share with ya when the theory is more solidified and proven via repetition and it should point you towards some very, very tasty chunky stuff. Thanks again mate!
Land down under has volcanos
Woah Nelly lol 😂
future news in Sydney empty shelves and jumping kangaroos 😂😂😂😂😂😂
I would say from the bible Noah's Flood changed everything as from the deep is volcanoes and the earth was flooded and changed and something else is coming
worse than the flood. Isiah 24:20 The earth shall reel to and thro like a drunkard, and shall be removed like a cottage-----------and back up to verse 19 and 2Peter 3:12.
Fear not seek God walk in faith and John 3:3 Romans 10:13 Acts 2:38 1Thessalonians 4:16-18 we are so close . Revelation 21:1-4 please read scriptures. I believe. !
Have you done a video of the Volcanic eruptions on the Atherton Tableland in North Queensland?
Not yet but getting to it! Uploads are about to ramp up phenomenally.
Victoria is a mega disaster 🤣