Showing posts with label 1/8-inch mesh. Show all posts
Showing posts with label 1/8-inch mesh. Show all posts

Monday, June 24, 2013

1/8-inch Mesh Screen


One of the main things I have taken on concerns screen size.  Here in the Northwest, the trend has been towards using fine mesh (1/8-inch mesh) for all archaeological investigations.  This is not simply sub-sampling with fine mesh, but processing all excavated sediment through fine mesh.  


There are many reasons for this trend, with probably the biggest being the emotional appeal.  That is, it just seems more science-y.  It feels right.  It feels rigorous.  We get lots more stuff and since archaeologists want stuff, isn’t more stuff better?  


What’s always missing, however, is a discussion of what we are losing by only using fine mesh.  I often get strange looks when I ask this question.  “We are not losing anything,” is the response, “that’s why we are using fine mesh.”  Unfortunately, you are losing stuff.   Lots of it.   

I have said it before and will say it again. The dramatic increase in the use of fine mesh is a disaster for regional archaeology.