Re: abiotic oil & boop


chriso wrote:
"don findlay" <don@xxxxxxxxxxxx> wrote in message
news:1143242654.714813.189570@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

chriso wrote:
A technical session at the 2005 annual convention of the American
Association of Petroleum Geologists (AAPG) was devoted to abiogenic
petroleum. Extended abstracts from that session arguing both for and
against the existence of abiogenic petroleum are available online.


<http://www.searchanddiscovery.com/documents/abstracts/2005research_calgary/index.htm>from
ccnet.

Thanks chriso. Useful link.

No worries, I thought it was interesting enough to share.
I thought the article by Wallace Dow made a pretty good case to support
boop.

Yes, he certainly did. He shows a section there too that explains how
the hydrocarbons can end up in older rocks, yet be derived from
overlying strata. Those rises in the basement are typically
extensional and go along with the larger picture of crustal extension
in general.

And yet I've witnessed a rig burn for a week before the fire could be
put out drilling nickel sulphides in Archaean serpentinites (though I'm
not sure if the methane was supposed to a supergene chemical reaction
or not, ..) I don't know all that much about oil and gas (as far as
chemistry/ maturation/ derivation etc goes) (maybe I should, but I
don't - just never had to do with it) but I do know a bit about the
structural controls on it, and that there's scope there for some
'reconfiguration' of popular models. The scope used to be substantial,
but things have changed a bit in the last decade or decade and a half.
( I haven't been keeping up with it, since I know the direction it's
headed.)

What conditions support the deposition of salt sealing layers-
lacustrine?

I don't know, other than just loosely 'evaporite'. My interest is much
more along the lines of structural control. I should 'break out',
...shouldn't I ....

.