We would like to advertise the following session at the forthcoming
Goldschmidt 2013, August 25-30, Florence, Italy. The abstract deadline is
in a couple of weeks -- April 12, 23:59GMT. Accepted abstracts will be
published in the Mineralogical Magazine.
Session 14f: Pumping Down the Greenhouse: Sensitivity and Structure of the
Biological Carbon Pump in Warm Climates.
Conveners: Kyle Taylor, Sandra Arndt, Sandra Kirtland Turner
Keynote: Lee Kump
The biological carbon pump is the sum of biologically-mediated processes
that transport carbon from surface to deep waters in marine systems. The
efficiency and structure of the biological carbon pump are key factors in
determining the partitioning of carbon within the oceans and atmosphere
over a range of timescales. Model and proxy reconstructions of warm
climates in Earth history raise the possibility that fundamentally
different processes operate in these environments. For example, studies
which focus on the recovery of Earth systems following hyperthermal events
(periods of transient warming associated with massive carbon release)
indicate that carbon is sequestered more rapidly than would be expected if
driven by carbonate compensation alone. Understanding the factors
controlling the production and fate of particulate and dissolved inorganic
and organic carbon, as well as changes in this system associated with warm
climates, may provide insight into the response of the oceanic carbon cycle
to future warming.
Of particular interest is the interrogation of feedback mechanisms which
may be amplified, or operate exclusively in greenhouse climate systems.
This session aims to bring together researchers using both geochemical and
modeling techniques to understand the structure and function of the
biological pump during warm climates and hyperthermal events in Earth
history. We invite contributions that describe the sensitivity of the
biological carbon pump to the climate state and its role as a driver or
regulator of transient carbon perturbations. We also welcome contributions
that seek to quantify the factors that control biological and microbial
We look forward to receiving interesting and exciting contributions. Please
feel free to forward and circulate this notice if you know of anyone else
who may be interested in contributing to the sesson.
Dr. Kyle W. R. Taylor
Telephone: +44 (0) 11795 46395
Mobile: +44 (0) 7708 920883
Email: [log in to unmask]