Report Number: 12845
Permit Number: CRLA199902-003
Current Status: Checked in
Date Received: Jan 01, 1999
Reporting Year:
1998
Principal Investigator:
Michael Ryan,
U.S. Geological Survey,
Reston, VA
Park-assigned Study Id. #:
CRLA199902-003
Permit Expiration
Date:
Jan 01, 2000
Permit Start Date:
Jan 01, 1998
Study Starting
Date:
Jan 01, 1996
Study Ending Date:
Jan 01, 2006
Study
Status:
Completed
Activity Type:
Research
Subject/Discipline:
Geothermal / Volcanology
Objectives:
Determination of the transport mechanisms
and the three-dimensional structure of
thermophilic and hyperthermophilic microbial
communities. The work is done in
relationship to the spatial structure(s) of
the thermal intervals and isotherms of their
optimal temperature range and limiting
temperatures.
Findings and Status:
Galerkin-based finite-element numerical
simulations have been completed for the
determination of the flow velocity vectors
and the thermal structure of theoretical
end-member microbial transport scenarios.
These include: (I) Continuous convective
transport of microbes in fractured and
microporous volcanic rock; (II) Continuous
convective transport in multiply- fractured
volcanic rock.;These simulations have
produced maps of two-dimensional slices
through the subsurface of fractured volcanic
substructures appropriate to the deep
structure of Yellowstone's
fracture-controlled hydrothermal conduits.
In cross-section the simulations depict the
time-space evolution of the regions of
stability for (i) thermophilic microbes
(50-80 C); (ii) hyperthermophilic microbes
(80-113 C); and selected macromolecules
(114-~200 C).; Manuscripts for Journal
publication reporting these, and other,
general findings are now in preparation.
For
this study, were one or more specimens collected and
removed from the park but not destroyed during
analyses?
No
Funding provided
this reporting year by NPS:
0
Funding provided
this reporting year by other sources:
0
Full name of
college or university: n/a
Annual funding
provided by NPS to university or college this
reporting year:
0
