20th March 2014, 12:00 AM
Marc Berger Wrote:All I was referring to was the fact that the smoke deposits on a ceiling form downwards and as does the sequence of rafter-plaster, paint, smoke AND that the deposited layers of plaster, layers of paint, layers of smoke also form downwards which is counter to superposition. Now you can throw these deposits into Harris matrix but I am unaware of a convention that expresses both these characteristic's in Harris matrix other than the use of interpretation which I imagine would result in a matrix where the flow (? how about "edge") lines must come out of the bottom of the rafter context and turn upwards to the plaster then the paint and then the smoke, possibly then equating to the embers before proceeding down below rafters to find the floor context.
The floor and the ceiling are seperate surfaces with no direct stratigraphic relationship, I don't believe there is any convention for extending the matrix downward through the space of the room as if it were a layer in the matrix.
Are you winding us up or do I have to go back and read Harris again?