[Rockhounds] West Michigan's geology could be answerto keepingcarbon emissions out of global-warming mix

[Kreigh Tomaszewski]

Larry,

Carbon dioxide has no liquid state at pressures below 5.1 atmospheres. 
At 1 atmosphere it is a solid at temperatures below -78 °C.

Pumping liquid CO2 into the earth probably prevents harvesting the heat 
of the deep location (but it depends on how deep -- you might be able 
to collect at a lesser depth if there is also really good insulation).

The conditions necessary to put the CO2 underground raise other 
interesting questions about what is happening underground.

Kreigh


On Tuesday, Oct 7, 2008, at 20:39 America/Detroit, Lawrence Rush wrote:

> Kreigh: It seems logical that the bore hole which would be used to 
> pump down the CO2  could be multi-tubed to also pump down water to be 
> heated and used for power in the process...another question for the 
> reporter?
>
> Larry
>
>
>
> ----- Original Message ----- From: "Kreigh Tomaszewski" 
> <Kreigh at Tomaszewski.net>
> To: "Rockhounds at drizzle.com: A mailing list for rock and gem 
> collectors" <rockhounds at lists.drizzle.com>
> Sent: Tuesday, October 07, 2008 8:10 PM
> Subject: Re: [Rockhounds] West Michigan's geology could be answerto 
> keepingcarbon emissions out of global-warming mix
>
>
>> Axel,
>>
>> The Urey Reaction has CO2 and siliceous rock, in the presence of 
>> water, converting to SiO2 and carbonates. Cements in the Mount Simon 
>> formation include quartz and feldspar overgrowths, hematite and 
>> kaolinite, carbonate, chlorite, and microquartz (chert). See 
>> http://aapgbull.geoscienceworld.org/cgi/content/abstract/68/6/753.
>>
>> Since most of the cements are not affected, it should not be a 
>> problem. If it were, I suspect it would have shown up in the testing 
>> done so for. But it is a good question. Since I live over the 
>> formation I have left a message for the reporter to see if the 
>> question came up in his research for the article.
>>
>> Kreigh
>>
>>
>>
>> On Tuesday, Oct 7, 2008, at 05:44 America/Detroit, Axel Emmermann 
>> wrote:
>>
>>> Kreigh,
>>>
>>> Mucho interesting idea!
>>> One thought crossed my mind when I found this about sandstone: " 
>>> Sandstone,
>>> the sedimentary rock is composed of small grains that are cemented by
>>> siliceous, felspathic or calcareous cementing material. The cementing
>>> material determines the durability of the sandstone.
>>>
>>> I keep forgetting the name of the reaction but there is a known 
>>> effect in
>>> which siliceous rock is weathered by CO2 and water into carbonates 
>>> and sand.
>>> It's the "?????-reaction". I keep forgetting the name but there's a 
>>> "u" in
>>> it ;-)))
>>> AAAAAHHHHHHUUUGGGGGHHHHHHRRRRRRRRRRRRRR (sound of me having a 
>>> brainstorm)
>>> Got it: the UREY-reaction. Named after Harold Urey.
>>> CO2 under high pressure could attack feldspars and other silicates. 
>>> Take
>>> away the cementing mineral from the sandstone and it could collapse. 
>>> That
>>> would have a fatal effect on the porosity of the layer in the 
>>> immediate
>>> vicinity of the injection point.
>>>
>>> Normally the Urey reaction is a slow geological process. In this case
>>> however pressure and temperature may be important in speeding the 
>>> reaction.
>>>
>>> Axel
>>>
>>>
>>>
>>>> -----Oorspronkelijk bericht-----
>>>> Van: rockhounds-bounces at lists.drizzle.com
>>> [mailto:rockhounds-bounces at lists.drizzle.com]
>>>> Namens Kreigh Tomaszewski
>>>> Verzonden: zondag 5 oktober 2008 22:38
>>>> Aan: Rockhounds at drizzle.com: A mailing list for rock and gem 
>>>> collectors
>>>> Onderwerp: [Rockhounds] West Michigan's geology could be answer to
>>> keepingcarbon
>>>> emissions out of global-warming mix
>>>>
>>>> It is not often that the main story on the front page of my local
>>>> newspaper is about geology.
>>>>
>>>> http://www.mlive.com/grpress/news/index.ssf/2008/10/
>>>> graphic_for_emissions_story.html
>>>>
>>>>
>>>> --
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>>>
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>>
>>
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