Commission on Controlled-Source Seismology: Deep Seismic Methods
12th International Workshop
Mountain Lake, Virginia, USA
8-11 October 2003

The CCSS "Deep Seismic Methods"workshops focus on methodological aspects of reflection and refraction seismology as applied to crustal and lithospheric targets. The goal is the development and assessment of improved acquisition, processing, modelling, inversion, integration, and interpretation procedures.

The 2003 workshop was held at the Mountain Lake Hotel in Virginia, USA. The hotel is about 20 minutes from Virginia Tech and Blacksburg VA.

Hosts: John Hole, Virginia Tech and Colin Zelt, Rice University

An article summarizing the workshop was published in EOS:
Hole, J. A., Zelt, C. A., and Pratt, R. G. (2005) Advances in controlled-source seismic imaging, Eos Trans. Amer. Geophys. Union, 86, pp. 177 & 181 (May 3 issue, cover article).

The CCSS is now the WGSIL

We are currently looking for a host for the next workshop, circa 2006. Please contact John Hole.

The CCSS Methods workshop series works in parallel with the "Deep Seismix" international workshops also sponsored by IASPEI-CCSS/WGSIL and held approximately every two years. The Deep Seismix workshops emphasize application and interpretation of the seismic methods to image the lithosphere. The Methods workshops are focussed on the techniques and are smaller to best facilitate discussion.

Sponsors:

PROGRAM (with links to online pdf-format extended abstracts)

Wednesday 8 October

• 08:45 John Hole, Virginia Tech: Welcome
• 09:00 Michael Bostock (U. of British Columbia, Canada), Inverse scattering of teleseismic waveforms
• 10:00 Shirley Baher (U. S. Geological Survey, Menlo Park, USA) and G. Fuis, Integration of controlled and passive sources used to generate a tomographic image of the Santa Monica basin
• 10:30 Break
• 11:00 John Hole (Virginia Tech, USA), Migration imaging of steeply dipping faults
• 11:30 Gou Fujie (Inst. for Frontier Research on Earth Evolution, Japan), A. Ito, S. Kodaira, and Y. Kaneda, Reflection travel time mapping for imaging lithospheric scale reflectors
• 12:00 Lunch
• 01:30 Dirk Gajewski (U. of Hamburg, Germany), Recent advances in reflection seismic imaging
• 02:30 Biondo Biondi (Stanford U., USA), Imaging of complex structures by reflection seismic data: state-of-the-art and road ahead
• 03:30 Break
• 03:45 Robert Hawman (U. of Georgia, USA), M. Khalifa, J. Kucinskis, and J. Clippard, Using quarry blasts to image the crust: deconvolution and migration of wide-angle data
• 04:15 Colin Zelt (Rice U., USA), Exploiting the complementary nature of two inverse methods
• 04:45 Igor Morozov (U. of Saskatchewan, Canada), and G. Chubak, Industry-grade seismic processing system for controlled- (and passive-) source academic research
• 05:15 Dinner

Thursday 9 October

• 08:30 Gerhard Pratt (Queen's U., Canada), Waveform tomography: theory and practice
• 09:30 Fuchun Gao (Rice U., USA), A. Levander, G. Pratt, C. Zelt, and S. Ham, High resolution waveform tomography at a groundwater contamination site: surface reflection and VSP datasets
• 10:00 Kalachand Sain (National Geophysical Research Inst., India), F. Gao, G. Pratt, and C. Zelt, Imaging of sub-basalt sediments using waveform inversion of wide-angle seismic data
• 10:30 Break
• 11:00 Charles Hurich (Memorial U., Canada), Seismology and the characterization of lithospheric heterogeneity
• 12:00 Matthias Imhof (Virginia Tech, USA), Quantifying seismic heterogeneity
• 12:30 Lunch
• 02:00 Colin Zelt (Rice U., USA), Synthetic data distributed prior to the workshop
• 02:15 Dieter Franke (BGR, Germany), The effect of variable receiver samplings on a velocity model obtained by an automatic inversion of the traveltimes from the synthetic data set distributed prior to the meeting
• 02:45 Andrew Brenders (Queen's U., Canada), and G. Pratt, Waveform tomography of a 2-D full wavefield, elastic, wide angle, synthetic dataset
• 03:15 Christopher Juhlin (Uppsala U., Sweden), J. Rodriguez, and A. Tryggvason, Reflection seismic processing of the CCSS 2003 "high resolution" synthetic data set
• 03:45 Colin Zelt (Rice U., USA), The unknown model and refraction/reflection traveltime tomography results **** Colin also presented results of other groups that worked on the data but were unable to attend.
• 04:00 Discussion: results from the synthetic data
• 04:30 Posters and Dinner

Friday 10 October

• 08:30 Bernd Milkereit (U. of Toronto, Canada),D. Eaton, M. Salisbury, E. Adam, and T. Bohlen, 3D seismic imaging for mineral exploration
• 09:30 Roman Spitzer (Cambridge U., UK), Environmental/engineering-scale seismic exploration
• 10:30 Break
• 11:00 Tamas Fancsik (Eotvos Lorand Geophysical Inst., Hungary), A. Csaba Kovacs, and E. Hegedus, Wide-angle reflection-refraction experiment in the NE Pannonian Basin
• 11:30 Cemil Gurbuz (Bogazici U., Turkey), T. Bekler, M. N. Toksoz, S. Kuleli, D. Kalafat, and C. Schultz, Seismic refraction studies and crustal structure in Anatolia
• 12:00 Alan Roberts (Cambridge U.), Integrated wide-angle and reflection modelling of the North Atlantic margin
• 12:30 Lunch
• 01:30 Katie Keranen (Stanford U., USA), and S. Klemperer, Preliminary results from 3-D tomography in the Main Ethiopian Rift
• 02:00 Bryan Kerr (Stanford U., USA), and S. Klemperer, Wide-angle imaging of the Mariana subduction factory: progress and challenges
• 02:30 Stefan Buske (Free U. of Berlin, Germany), S. Luth, R. Patzig, S. Shapiro, P. Wigger, and M. Yoon, Seismic imaging of the subducted Nazca slab, north Chile
• 03:00 Break
• 03:30 Open Discussion: Successes and Challenges
• 05:30 Dinner

Saturday 11 October

• 09:00 Hike to mountain viewpoints
• 01:00 Hike to Cascades waterfall

Other abstracts received

• Camelia Knapp (U. of South Carolina, USA), J. Knapp, E. Anderson, and D. Mucuta, Lithosphere-scale imaging of the Romanian Carpathians: new approaches with the PASSCAL instrument pool
• Tetsuo Takanami (Hokkaido U., Japan), A new statistical method to discrimination between water waves and reflected and/or refracted waves in OBS data -- cancelled due to M8 earthquake in Hokkaido!

Participants