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Author Topic: Kurile arc age and microbes  (Read 4379 times)

Offline duncan

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Kurile arc age and microbes
« on: 11/11/2004 13:57:43 »
Does anybody has an idea on the age of the Kuril island arc, the stretch of islands between Japan and Kamchatka?
I wonder about this since I study a bacterium that has some characteristics that allows you to think its around for a few billion years. However, it was isolated from a thermal pond on kunashir island (the most southern island of the Kurils). The vulcanos on the island seem to be holocene in origin, but the arc itself may have formed in the neogene. At least, that is what I  managed to dig up. Since I'm a microbiologist and not a geologist I'm still in doubt, could anyone validate?
With the information I'll try to compile a theory on how this bacterium ended up on the island...


 

Offline chris

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Re: Kurile arc age and microbes
« Reply #1 on: 12/11/2004 08:04:19 »
Is this some kind of archebacterium then ? Chris

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Offline duncan

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Re: Kurile arc age and microbes
« Reply #2 on: 12/11/2004 08:33:35 »
It is an eubacterium. Though I prefer to speak of bacteria and archaea. It grows optimally at temperatures of 65 - 70 degrees celcius. Its subtrate is CO and it produces H2, a very simple metabolism. The temperature and the metabolism allow the thought that it is close to the last common ancestor of bacteria and archaea.

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Re: Kurile arc age and microbes
« Reply #2 on: 12/11/2004 08:33:35 »

 

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