But I thought they said that shells will dissolve at 500 ppm. Perhaps man-made CO2 is different, and creates more corrosive acids than natural CO2.
http://www.guardian.co.uk/science/gallery/2011/aug/11/lyme-regis-jurassic-fossil-coast
But I thought they said that shells will dissolve at 500 ppm. Perhaps man-made CO2 is different, and creates more corrosive acids than natural CO2.
http://www.guardian.co.uk/science/gallery/2011/aug/11/lyme-regis-jurassic-fossil-coast
Those fossils were placed there as a deception by evil big oil.
Sea shells are made from Calcium Carbonate and if you look at the solubility product of that material at different temperatures, limestone actually drops in solubility as the temperature rises. This is because with an excess of carbonic acid you get a lot of calcium bi-carbonate or Ca(HCO3)2 which increases the solubility. However the bi-carbonate is made unstable by warming the water. Hence you see lots of limestone and carbonate formations in warm water but little in cold water. Warm water temperature is the key to sequestering CO2 as carbonate (and releasing the over half of the bi-carbonate as CO2).
sean, animals that lay down calcium carbonate…..
…have to make it soluble first
Now that is funny! 😉
But that was natural CO2, and not the deadly man made kind.
Yes but the fossils are dead, so evil CO2 killed them. Correlation you see.
Who here thinks that I can efficiently dissolve calcium oxalate by adding oxalic acid?
Why would calcium carbonate and carbonic acid be any different?
Adding CO2 to water does not lower the total amount of deprotonated carbonate available to form shells.
-Scott
lol, Scott, speak English!! Not Chemistry!!!
Who in the hell knows what deprotonated carbonate is? What the heck is oxalic acid? And how does it apply to the conversation?
Well, Google is our friend in this case……
deprotonated carbonate = mostly bicarbonate in this setting.
Just teasing with you…… you had me searching before your first sentence was done! Thanks.
Probably German made sea shells. The ones that dissolve at 500 ppm are obviously Chinese made. :p
This might be the first time I’ve ever heard of a non-living object ‘thriving’. Did rocks thrive too back then?
Abiogenic seashells. You get moron award for the early afternoon..
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Look, this is really stupid…..
You can only get these “acid pH” levels in the lab…..by literally adding acid.
CO2 will not do it…..
and they are lying to everyone about it.
For one thing, the second you start dissolving calcium carbonate……you start buffering
Every one of these animals – and plants – that incorporate calcium carbonate, have to be able to dissolve it first…..they do that by lowering their internal pH
Lat, the only thing I can say is keep preaching…… they’ll get it one day.
Corals grow faster at elevated CO2 levels…..
Corals are a symbiosis of primitive animals and algae which are plants and do the CO2 thing that plants do.
John, it’s a dinoflagellate, genus Symbiodinium……
…but algae is close enough 😉
Corals drank my beer.
Chicxulub? That was a coral who got tired of hearing about that Chuck Norris fairy.
Reef-building corals don’t like to brag, but every train derailment has occurred within their striking range from the sea.
Omerta is Sicilian for, Acropora palmata.