First report on bottom studies of Esquimalt Harbour
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SubjectOcean bottom; Hydrographic surveying
Studies of the bottom and sub-bottom sediments of Esquimalt Harbour were undertaken principally during the later part of FY 1978, using a sub-bottom profiler, side scan sonar, and grab sampler with position fixing by radar. Grain size distribution was studied using a two meter settling tube and automatic weighing system, with slower methods used for comparison and verification. The structure of the sediments in the harbour is quite complex. In particular some strong reflectors warrant further study to determine whether they are solid or gaseous.