The workshop was organized into three topical units. The first unit included a presentation of laboratory measurements on a variety of frozen sedimentary rocks and permafrost, and an overview of problems and geophysical phenomena associated with permafrost. The second unit presented results of transient electromagnetic soundings in onshore and offshore permafrost environments. Comparisons were made with other geophysical results including acoustic velocity logs. Unit three of the workshop treated a variety of seismic measurements in diverse permafrost environments and served to focus the workshop on problems pertinent to seismic exploration for petroleum. This overview of the workshop was prepared by the organizers with review by the participants. Its purpose is to relate the principal topics and questions discussed in the workshop. Limitations on space require that greater detail on any topic be solicited on an individual basis from the appropriate participants.
Deep transient electromagnetic soundings with a grounded source over near-surface conductors