John A. Hole
RESEARCH INTERESTS: EXPLORATION SEISMOLOGY OF THE CONTINENTAL CRUST
My research interests are
My research emphasis is on the acquisition and analysis of
seismic data and
their interpretation in terms of geological structure, composition,
evolution, and tectonics. Applications include tectonics,
natural hazard assessment, resource exploration (petroleum, mining, groundwater),
geotechnical evaluation, and environmental studies.
- the application of reflection and refraction seismic imaging
to the study of Earth's crust, and
- the development and implementation of improved and practical
seismic acquisition and analysis techniques.
Working with real data stimulates my research interest in the
development of improved field and analysis procedures, extending
traditional seismic methods to solve geologic problems in new ways.
Methods of interest include full-wavefield inversion, interferometry, prestack depth migration, migration of earthquake sources, seismic guided waves, and three-dimensional traveltime inversion.
Current projects include:
I am looking for good graduate students.
Please contact me if interested.
- Field Projects and Subsequent Data Analysis and Interpretation
- Technical Studies Using Synthetic and Real Data
- waveform inversion of wide-angle
refraction and reflection data (application to data from the San Andreas Fault,
Chesapeake Bay, and Salton Trough datasets)
- interferometry imaging using ambient noise recorded on dense linear arrays
(application to Salton Trough, Batholiths, Idaho-Oregon, and Virginia earthquake datasets)
- migration / backprojection imaging of earthquakes for rupture processes (application to aftershocks of the Virginia earthquake)
- imaging the internal properties of major active fault zones using
seismic guided waves (application to data from the San Andreas Fault)
- resolution of travel time and waveform inversion
Graduate Students and Research Associates
The geophysics group consists of several professors:
The geophysics group maintains a network of Linux and Mac OSX
workstations, and tens of Terabytes of disk space. We have one Unix/Linux system administrator.
The Virginia Tech
Advanced Research Computing
facility operates several computer clusters, and geophysics research is using this resource.
Major commercial software licenses include
suite for 3D seismic processsing (SeisSpace Promax) and seismic & stratigraphic interpretation (DecisionSpace), and
ESRI's Geographical Information System (GIS).
Seismic software developed in-house involves 3-D modeling and inversion of times and waveforms.
Exploration geophysics field equipment includes:
- Geometrics Strataview 60-channel, 24-bit seismic recording system, geophones and cables.
- Sensors and Software Pulse-Echo 100 ground-penetrating radar (12.5 - 200 MHz).
- AGI SuperSting 8-channel, 64-electrode electrical resistivity
- Scintrex ENVI VLF electromagnetics with resistivity.
- Trimble GPS surveying equipment (cm accuracy).
Department of Geosciences
4044 Derring Hall (MC 0420)
Blacksburg, VA 24061
office: 1040 Derring Hall
last updated September 2013
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