As part of a cooperative project to study the paleoclimatic record of Lake Baikal, a joint American-Russian team collected about 3600 km of high-resolution seismic-reflection profiles during three expeditions between 1990 and 1992. Two basic seismic systems were used: (1) a 3.5 kHz system, which gave resolution of >0.5 m and average sediment penetration of 30-50 m, and (2) a single-channel water-gun system, which gave resolution of less than a meter and average sediment penetration of 300-400 m. The water-gun data were digitized from analog tape and processed to increase their quality. These data have been used to define and map sedimentary environments in the lake and to choose the best coring sites for paleoclimatic analyses, including the 1993 site for the Baikal Drilling Project.
USGS products may be obtained from:
USGS Information Services
Box 25286 Denver Federal Center
Denver, CO 80225-0046
(303) 202-4200
Contact: Steven Colman
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