Title: Re: paleonet Re: Geobiology
At 1:32 PM -0700 10/24/02, Peter Roopnarine wrote:
Well, I am busily preparing to depart for
GSA so this will be brief. The notion that most or all of geobiology
proceeds in an ahistorical fashion is completely
incorrect.
This is the seminar topic this Friday in my department:
Prof. Lesley Warren from McMaster University will be giving a
talk next Friday at 3:00 p.m. entitled:
Microbes, MN Oxyhydroxides and Metals: Microbial Biogeochemistry
in Acid Rock Drainage
Reactive metal transport in acid rock
drainage (ARD) environments is increasingly appreciated as a
microbially mediated process. Understanding the linkages amongst
microbial function, system geochemical conditions and metal behaviour,
will help to provide a mechanistic foundation from which to design
mitigative and/or bioremediation approaches for ARD. My group
has been investigating the biogeochemical processes controlling metal
dynamics in tailings derived streams in an ARD environment (Sudbury,
ON), using an integrated approach combining geochemical,
microbiological and microscopic techniques. ... This talk
will provide an overview of our results thus far, and provide evidence
for the importance of both microscale and integrated geochemical and
microbiological field sampling approaches, as well as laboratory
investigation of relevant mineral solids (e.g. fine grained, amorphous
to poorly crystalline minerals), in the development of a relevant
biogeochemical framework of aqueous metal behaviour in natural
systems.
In my experience this is geobiology.
Bill
--
-----------------------------------------------
William P.
Chaisson
Department of Earth and Environmental Sciences
University of
Rochester
ph 585-275-0601
Rochester, New York 14627
USA
fax 585-244-5689
http://www.earth.rochester.edu/chaisson/chaisson.html