Complex stratigraphic information is encoded in archaeology using schematic layouts, or Harris matrices, which visually represent stratigraphic relationships between different layers and/or features in an excavation.

The list below contains the Harris matrices for the excavation squares pertinent to the simulation pottery sample. The matrices were created from information available in the diaries. The matrix images are accessible individually through the links below, or as a bulk download for offline use using the link at the end of this page.

The matrix layers are numbered 1-6, with 1 corresponding to the topmost layer, i.e. plowzone, which is distinct from the surface. Of note, some of the pottery listed in the sample datasheet originates from the deepest layer recorded at site PG64, Level 8 (the matrix/diary information is therefore incomplete). Measurements are listed in meters. Each layer pass is conventionally 0.20 m deep. On occasion the matrices record associated features. A list of corresponding features (associated with squares relevant to the simulation pottery sample) can be found here.


179R, 179S, 179T, 179U, 179X, 179Y


247R, 247X


248R, 248T, 248U, 248X, 248Y, 248Z


249P, 249Q, 249U, 249W


318D, 318E, 318F, 318K, 318L


319A, 319B, 319C, 319G, 319H, 319J, 319P, 319Q, 319R, 319S, 319U, 319V, 319W, 319X