stones that float

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bombora
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stones that float

Post by bombora » Mon Dec 09, 2013 2:05 pm

Dee Why to Longy stretch has a thick covering of pumice on the high tide line. Some have barnacle growth.
Anyone have an idea of their origin?
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alakaboo
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Re: stones that float

Post by alakaboo » Mon Dec 09, 2013 2:42 pm

There was an underwater volcanic eruption off NZ last year, the pumice raft was about 500km x 50km and it has been breaking up and moving around with the currents ever since.
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bombora
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Re: stones that float

Post by bombora » Mon Dec 09, 2013 7:05 pm

Thanks Alak, v interesting.
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otway1949
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Re: stones that float

Post by otway1949 » Mon Dec 09, 2013 10:25 pm

alakaboo wrote:There was an underwater volcanic eruption off NZ last year, the pumice raft was about 500km x 50km and it has been breaking up and moving around with the currents ever since.
Sail through it you remove all barnacles anti-fouling and hull paint. It also was as good for engine intakes as the ash cloud are for jet engines in planes .
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otway1949
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Re: stones that float

Post by otway1949 » Wed Dec 11, 2013 9:03 pm

Brian Jones :!:
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Trev
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Re: stones that float

Post by Trev » Wed Dec 11, 2013 10:19 pm

otway1949 wrote:Brian Jones :!:
Wasn't that his problem?
He didn't. :d
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Beanpole
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Re: stones that float

Post by Beanpole » Wed Dec 11, 2013 10:37 pm

I collected a bit up at Crescent in July and I've been grabbing a few bits lately at Bondi and Bronte. Seems to have been a lot around lately after the storms a while back. As said they seem to have been floating around picking up barnacles and stuff. Makes beachcombing a bit more interesting.
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daryl
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Re: stones that float

Post by daryl » Thu Dec 12, 2013 7:52 am

Me too, they're a bit crumbly to make good pumice 'tho.
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still here
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Re: stones that float

Post by still here » Thu Dec 12, 2013 3:32 pm

I got stoned while surfing Narrabeen last week . Not as nice as some jet-Black-with-diamond-like-sparkle bits I found a year ago at Fishermans Beach , but it's nice to have a little collection of pumice going , and to build on .
Floating rocks are pretty cool .
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Beanpole
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Re: stones that float

Post by Beanpole » Sat Dec 14, 2013 6:43 am

Had some floating in a bowl of water on the table out the back but my wife said they look like lumps of poo so I took them out. :lol: :lol:
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Beanpole
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Re: stones that float

Post by Beanpole » Sat Dec 14, 2013 11:10 am

:lol: :lol: :lol: :lol:
Should fit right in around our place.
Its looking like a real brothel at the moment.
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Re: stones that float

Post by Beanpole » Fri Jan 17, 2014 9:19 am

Wow, read Dons link to the origins of this pumice. Shows how some of our currents work.
I'm still finishing this book about a container load of toy animals eg ducks that has been floating around the world for twenty years. Surprisingly the book claims we actually know very little about how undersea weather patterns develop and their effects.

Biggest pumice float in 50 years. Featuring at a beach near you now.
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Trev
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Re: stones that float

Post by Trev » Mon Feb 03, 2014 11:01 am

Picked up a lump at Tea Tree Bay the other day that was as big as my closed fist.
And an even bigger one on the edge of Pumicestone ( :B ) Passage.
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Re: stones that float

Post by marauding mullet » Mon Feb 03, 2014 12:11 pm

Lots of small bits along the high tide mark at Redhead a few days ago, picked up a handful, it weighs nothing.
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