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Comparative Archaeology Database, University of Pittsburgh
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Copán Valley and La Entrada Region Dataset |
This file contains the data in a spreadsheet, Excel format (.xls), to be read directly. Click here to see the file TAB_A03.XLS (24,064 bytes).
This file contains the data from 38 contexts with obsidian availability indices from the Copan valley. The contents for every context are presented in one line, the data file TAB_A03.TXT has 38 lines, with 34 variables separated with commas. The 34 variables are, in the following order:
| 1 | Physiographic zone |
| 2 | Sub-community |
| 3 | Group |
| 4 | Str. 10L-26 stratigraphic sequence |
| 5 | Operation |
| 6 | Lot Number |
| 7 | Context |
| 8 | Total of all obsidian chipped stone artifacts |
| 9 | Total of obsidian artifacts analyzed |
| 10 | Percentage of artifacts analyzed from the total number of obsidian artifacts |
| 11 | Ixtepeque (N) |
| 12 | Ixtepeque (% from the total of artifacts analyzed) |
| 13 | Pachuca (N) |
| 14 | Pachuca (% from the total of artifacts analyzed) |
| 15 | La Esperanza (N) |
| 16 | La Esperanza (% from the total of artifacts analyzed) |
| 17 | El Chayal (N) |
| 18 | El Chayal (% from the total of artifacts analyzed) |
| 19 | San Martin Jilotepeque (N) |
| 21 | San Martin Jilotepeque (% from the total of artifacts analyzed) |
| 22 | Unidentified source (N) |
| 23 | Unidentified source (% from the total of artifacts analyzed) |
| 24 | Prismatic blades (N) |
| 25 | Prismatic blades (% from the total of artifacts analyzed) |
| 26 | Ixtepeque with cortex (N) |
| 27 | Ixtepeque with cortex (% from the total of Ixtepeque artifacts analyzed) |
| 28 | Excavated volume (m3) |
| 29 | Obsidian density (N/m3) |
| 30 | Obsidian weight (g) |
| 31 | Obsidian density (g/m3) |
| 32 | Ceramic sherds (N) |
| 33 | Obsidian(N)/ceramics Index |
| 34 | Obsidian(g)/ceramics Index |
The first line of the file, for example, looks like this:
"Faldas","","","","IV/59","","various",411,225,54.7,206, 91.6,15,6.7,3,1.3,0,0,0,0,1,0.5,119,52.9,6,2.9,"","",396.7, "",4204,0.054,0.094
Belongs to the first context analyzed, which indicates the physiographic zone "Faldas", there is no subcommunity, nor group or stratigraphic sequence. The operation is "IV/59", there is no lot number and it belongs to the context "various". This context has a total of 411 obsidian artifacts, 225 artifacts (52.7%) were analyzed. Then obsidian artifacts are presented according to their sources: Ixtepeque, 203 artifacts (91.6% of the obsidian analyzed); Pachuca, 15 (6.7%); La Esperanza, 3 (1.3%); El Chayal, 0 (0%); San Martin Jilotepeque, 0 (0%); unidentified sources, 1 (0.5%). The lines continues with the total of prismatic blades from the context, 119 blades (52.9%); Ixtepeque with cortex, 6 artifacts (2.9% of the total of Ixtepeque artifacts); excavated volume, 0; obsidian density (artifacts per cubic meter), 0; obsidian weight, 396.7 grs; obsidian density (g per cubic meter), 0; ceramic sherds, 4204; obsidian number / ceramics ratio: 0.054, obsidian weight / ceramics ratio: 0.094. The quotation marks around "Faldas" indicate that this variable is alphanumeric and "" indicates the absence of data.
The last (38th) line is:
"","Principal Group","10l-1","","GreatPlaza","V/62,63", "midden",131,125,95.4,122, 97.6,1,0.8,0,0,1,0.8,1,0.8,0,0,104, 83.2,2,1.6,3.4,36.8,377.3,111.0, 4612,0.027,0.082
Which indicates indeterminate physiographic zone, subcommunity "Principal Group", group "10l-1", no stratigraphic sequence. Belongs to the operation "Great Plaza", lot number "V/62,63" and it belongs to the context "midden". This context has a total of 131 obsidian artifacts, 125 artifacts (52.7%) were analyzed. Then obsidian artifacts are presented according to their sources: Ixtepeque, 122 artifacts (97.6% of the obsidian analyzed); Pachuca 1, (0.8%); La Esperanza, 0 (0%); El Chayal, 1 (0.8%); San Martin Jilotepeque, 1 (0.8%); unidentified sources, 0 (0%). The line continues with the total of prismatic blades from the context, 104 blades (83.2%); Ixtepeque with cortex, 2 artifacts (1.6% of the total of Ixtepeque artifacts); excavated volume, 3.4 m3; obsidian density (artifacts per cubic meter), 36.8; obsidian weight, 377.3 g; obsidian density (g per cubic meter), 111.0; ceramic sherds, 4612; obsidian number / ceramics ratio: 0.027; obsidian weight / ceramics ratio: 0.082. The quotation marks around "Principal Group" indicate that this variable is alphanumeric and "" indicates the absence of data.
Click here to download the file TAB_A03.TXT (4,889 bytes).