With sea levels rising by at least 120m globally at the end of the last ice age, conventional archaeological wisdom has been that sites on ancient coastlines are now deeply drowned. As is so often the case, conventional wisdom is over-simplified. The B.C. coast is a good example, since the effect of ice weighting in some places counterbalanced the lower sea levels, meaning significant chunks of the coastal plain and paleo-coastlines were never-drowned. Nonetheless, the underwater environment off the west coast doubtless contains thousands of early-period archaeological sites. Looking on land is more convenient, easier, cheaper, and allows one to breathe air – all good things. But looking underwater has some attractions too: methodological challenges, modelling issues, thinking about human life on a shrinking landmass, and a ridiculous amount of media coverage. The last is particularly important to University Administrators. Anyway, this month’s ASBC Victoria talk (poster, PDF) is on a project from a couple of years back which focused on attempting to find a particular kind of archaeological site on the sea floor: drowned fish weirs, especially rock wall ones, starting from the premise that such sites, which are often substantial in size, should be confined to stream channels and might be directly visible to sidescan sonar. For more information on the talk, click below.
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