Members of the Seismic Group are students and
staff, directed by Dr. Keith Louden. Areas of research include marine single
and multi-channel seismic, wide-angle seismic, and heatflow data
analysis.
Research
Programs
Research performed by the Seismic Group
is focused on determining large scale continental margin structure,
including investigation of possible gas hydrate occurrences.
Equipment
Ocean Bottom Seismometers (OBS) are the main
observational tools used at the Seismic Group. These instruments
provide "wide-angle" seismic data. These data can be modelled to
determine seismic velocity models of the sediment and crust. The OBSs
used at Dalhousie were built as a joint project between the Geological
Survey of Canada (Atlantic) and Dalhousie University.
The Dalhousie Heatflow Probe is capable
of determining in situ thermal conductivity and thermal gradient
information, by shallow penetration into sediment.
Software
The Seismic Group has developed
several pieces of software for use with wide-angle seismic data, which
are freely available from the software page.
SeisWide is a wide angle seismic processing and modelling program,
compatible with Rayinvr. PyShottab is a tool for creating SEGY shot
tables, and is an open source program. The group also uses several
commercial and academic software packages.