Unique stromatolites at Hamelin Pool, Western Australia

@JudyEv (228234)
Bunbury, Australia
October 26, 2020 8:24am CST
I have always thought Western Australia was pretty special and this was reinforced when we visited Hamelin Pool in the Shark Bay area of our state. As well as have a shell beach, Hamelin Pool is one of only a very few places where there are living stromatolites. There is another colony in the Bahamas and smaller collections elsewhere. These are pretty underwhelming to look at, in appearance being something of a cross between huge cauliflowers and rocks. Stromatolites (from the Greek for ‘layered rock’) are microbial reefs and are one of the earliest known life forms, so are effectively living fossils. The deposits are created by cyanobacteria and formed by the trapping, binding and cementation of sedimentary particles. The stromatolites release oxygen into the air and can sometimes be seen fizzing underwater. The salinity of Hamelin Pool is almost twice that of the ocean and ultraviolet radiation is extreme, meaning there are few predators so the microbial mat communities thrive. I wondered what could possibly be a predator but apparently there is a gastropod (saltwater snail) that can destroy the stromatolites. Growth is incredibly slow with perhaps 1mm per year being added to the surface of the rocks. There is a nicely made boardwalk which allows you to view the stromatolites without the risk of damaging them.
25 people like this
26 responses
@FayeHazel (35040)
• United States
26 Oct
Fascinating. I had no idea. Do you need to take any special precautions with the extra UV? Are the stromatolites old beings themselves thousands of years old? Or is it that they are the same specie as the ones that were ancient?
3 people like this
@JudyEv (228234)
• Bunbury, Australia
26 Oct
I think they are thousands of years old too as they grow so slowly. We weren't there long but didn't take extra precautions. There are no warning signs about the UV.
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@FayeHazel (35040)
• United States
27 Oct
@JudyEv That is so cool, little ancient life forms
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@JudyEv (228234)
• Bunbury, Australia
27 Oct
@FayeHazel They say that, without these microbes creating oxygen, there wouldn't have been life on earth. I don't understand it well enough to explain it properly so I didn't mention it.
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@Corbin5 (208772)
• United States
26 Oct
This information is new information for me. I have never heard of stromatolites. What an interest sight they happen to be.
2 people like this
@JudyEv (228234)
• Bunbury, Australia
26 Oct
It's a very scientific-sounding word, isn't it? A person would sound very learned dropping that into the conversation. lol
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@Corbin5 (208772)
• United States
27 Oct
@JudyEv I am going to practice pronouncing that word correctly. I need to get others to think I am quite smart.
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@Corbin5 (208772)
• United States
28 Oct
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@FourWalls (29265)
• Louisville, Kentucky
26 Oct
How amazing. Thank you for sharing this “underwhelming” natural wonder!
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@JudyEv (228234)
• Bunbury, Australia
26 Oct
They just look like pretty normal rocks. If they'd jumped about a bit, I might have been more impressed. lol
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@FourWalls (29265)
• Louisville, Kentucky
26 Oct
@JudyEv — I guess if you want a rock show you have to go to Sir Paul McCartney!
Titulo: Venus and Mars/ Rock Show Artista: Paul McCartney and Wings Album: Venus and Mars Año: 1975
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@JudyEv (228234)
• Bunbury, Australia
27 Oct
@FourWalls That would be more impressive!
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• United States
28 Oct
oh wow! i'm quite the rock hound'n find these livin' formations 'xtremely fascinatin'! i've watched many documentaries where such's scientifically proven that life began there'n australia. there 'lways seems to be a predator, eh? amazin' the adaptions to survive such conditions, though such prolly dates 'round the same time? outside 'f the saltiness, does such've an 'odor'? very glad they've a carefully constructed boardwalk so's not to disturb this delicate ecosystem. places such's this need great protections from man's destructive nature. thanks much fer this history lesson! i so need to come fer a visit though don't reckon e'en a 6 month visa'd be long 'nough fer my brain to 'bsorb 't all :)
1 person likes this
@JudyEv (228234)
• Bunbury, Australia
28 Oct
I didn't notice any seaweed there and don't remember any smell. You walk off the shell beach onto the boardwalk. Yes, you might need to take 12 months off when you come to visit.
1 person likes this
• United States
28 Oct
@JudyEv too much salinity fer the seaweeds perhaps? 'twas jest wonderin' 's many places 'f wonder like that here'n the u.s. seems to come with'n 'odor'. which't times ya jest can't put'cher finger'n what such'd be. what? this's right off that beautiful shell beach? dang't...knew i should'a snuck 'nto y'all's caravan, lol. purty certain e'en 12 months'd not be long 'nough. thinkin' possibly 1/4 per 6 months? jest think, if'n i'd the fundin' fer such'n 'dventure, i could hire yerself'n mr. vince to be my guides/drivers :D
1 person likes this
@JudyEv (228234)
• Bunbury, Australia
30 Oct
@crazyhorseladycx It would be our pleasure to be your guide and driver. I actually enjoy showing tourists and/or friends some of the sights we've found for ourselves.
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@rebelann (78136)
• El Paso, Texas
26 Oct
That's so interesting. I have never heard of these before. You always teach me something new, I love it.
1 person likes this
@JudyEv (228234)
• Bunbury, Australia
26 Oct
I've been wanting to see them for ages but they are pretty much just like rocks in the sand. I'm glad I was able to teach you something.
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@rebelann (78136)
• El Paso, Texas
27 Oct
You've taught me things about sheep and goats that I'd never even thought to look up @JudyEv This is what I love about Mylot, we all have something to share that someone else might not have known.
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@JudyEv (228234)
• Bunbury, Australia
27 Oct
@rebelann I've learnt a lot about snow and typhoons. And also how different cultures live their lives.
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@shaggin (55477)
• United States
26 Oct
I have never heard of these. Very neat. It would be so cool to see them fizzing in the water!
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@JudyEv (228234)
• Bunbury, Australia
26 Oct
I had no idea what to expect. Unfortunately, we didn't see any fizzing when we were there.
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@shaggin (55477)
• United States
27 Oct
@JudyEv oh darn . Still neat to get to see them though.
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@JudyEv (228234)
• Bunbury, Australia
27 Oct
@shaggin Definitely.
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@nawala123 (21199)
• Indonesia
27 Oct
is it from volcanic activity million years ago?
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@JudyEv (228234)
• Bunbury, Australia
27 Oct
No, it's nothing to do with volcanic activity. This is activity by tiny microbes and bacteria.
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@nawala123 (21199)
• Indonesia
28 Oct
@JudyEv wow, that is amazing
1 person likes this
26 Oct
The great Western Australia! We have not gone that far. I'd love to travel around Australia at my hubby's retirement. I hope not very soon, though.
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@JudyEv (228234)
• Bunbury, Australia
26 Oct
We had hoped to go round Australia this year but of course the pandemic put a stop to that.
1 person likes this
27 Oct
@JudyEv We have our dream somedays. We look forward to them.
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@LadyDuck (312413)
• Switzerland
26 Oct
This is an interesting formation, it is something that I would love to see personally. It would be a shame to damage them.
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@JudyEv (228234)
• Bunbury, Australia
26 Oct
The boardwalk is a very good idea. We walked over the shell beach to get to the boardwalk.
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@LadyDuck (312413)
• Switzerland
27 Oct
@JudyEv I think that it is good to incentive people to pay attention not to destroy what nature creates.
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@Hannihar (106675)
• Israel
26 Oct
@JudyEv Thank you Judy and that was very interesting.
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@JudyEv (228234)
• Bunbury, Australia
26 Oct
Thanks. I'm glad you found it interesting.
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@Hannihar (106675)
• Israel
27 Oct
@JudyEv You are welcome
1 person likes this
• India
26 Oct
Wow nice formation
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@JudyEv (228234)
• Bunbury, Australia
26 Oct
It's amazing to think they are so old.
• India
27 Oct
@JudyEv sure it is
1 person likes this
30 Oct
It's like alien, he he :-) thank you for the info, wish they can survive there as it's very rare phenomenon :-)
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@JudyEv (228234)
• Bunbury, Australia
30 Oct
They are very strange things in a way.
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@LindaOHio (51972)
• United States
27 Oct
What a fascinating species! Thank you for posting this interesting bit of information.
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@JudyEv (228234)
• Bunbury, Australia
27 Oct
You're welcome. They just looked like rocks to me but that's okay. lol
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@GardenGerty (128751)
• United States
27 Oct
This is my morning to learn something new. I love it.
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@JudyEv (228234)
• Bunbury, Australia
27 Oct
That's good. I'm really pleased you learnt something new. The subject seems a bit dry to me. lol
@kafryan (76)
• Jakarta, Indonesia
27 Oct
Thats interesting information, thank you for sharing!
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@JudyEv (228234)
• Bunbury, Australia
27 Oct
I'm glad you found it interesting. The rocks pretty much just looked like rocks to me.
1 person likes this
• Philippines
27 Oct
Thank you for sharing this interesting fact I hope I’d get to visit Australia someday. There are so many beautiful tourist spots to visit.
1 person likes this
@JudyEv (228234)
• Bunbury, Australia
27 Oct
I guess because we are such a big country, there is a lot of things to see. I hope you get to Australia one day too.
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@Ronrybs (10934)
• London, England
26 Oct
Never even heard of them before!
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@JudyEv (228234)
• Bunbury, Australia
26 Oct
That's good. You've now learnt your new thing for the day.
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@Dena91 (9251)
• United States
26 Oct
Very interesting. I'm glad Vince and you get to travel. I learn a lot from your travels
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@JudyEv (228234)
• Bunbury, Australia
26 Oct
Thanks. We're always learning new stuff too.
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@topffer (41652)
• France
26 Oct
They exist also in chalky, non salted, waters here. Maybe not exactly the same. Very nice picture
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@JudyEv (228234)
• Bunbury, Australia
26 Oct
Thanks. I think there are a few different types and apparently they take on different shapes too.
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@BelleStarr (55757)
• United States
26 Oct
Those sound very interesting. I love to visit places like this.
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@JudyEv (228234)
• Bunbury, Australia
26 Oct
It was interesting to learn about these. I'd been wondering about them for a while so it was good to see them.
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