Comparative Archaeology Database | Center for Comparative Archaeology | University of Pittsburgh
Mayapan Community Dataset
The data files below provide obsidian flake counts described by size and collection context. Obsidian sources were identified visually by Barbara Escamilla Ojeda.
[Comma delimited UTF-8 format]
[Excel format]
Each line in the CSV file represents a collection unit, either excavation, survey, or surface collection. There are 3240 lines, each with 22 variables separated by commas. The variables are listed in the following order:
1 | Sample type |
2 | Year |
3 | Structure |
4 | Pozo (test pit) |
5 | Cuadro (grid square) |
6 | Surface collection number |
7 | Lot |
8 | Level |
9 | Proximal |
10 | Medial |
11 | Distal |
12 | Whole |
13 | Core |
14 | Flakes |
15 | Chip |
16 | Chunk |
17 | Total count of flakes |
18 | Other flake type, where:
|
19 | Length (cm) |
20 | Width (cm) |
21 | Thickness (cm) |
22 | Amount of visible breakage on edges, where:
|
The first line of the CSV file, for example, looks like this:
Test Pit (PEMY),2003,P-114,42,,,2027,6,,1,,,,,,,1,,,1.89,0.38,H
This means that this flake was retrieved from a test pit excavation in 2003 at structure P-114, pozo 42, lot 2027, and level 6. It is a medial flake with a width of 1.89 cm and a thickness of 0.38 cm. It has heavy breakage visible on its edges.