Latin American Archaeology Database, University of Pittsburgh
URL: http://www.pitt.edu/~laad
Email: laad@pitt.edu 
Chipped Stone evidence from the Copan Valley and the La Entrada Region
Database
Kazuo Aoyama 
 
 
  TABLE A2
  Technological Analysis of Obsidian Chipped Stone Artifacts for the Early Classic Period, Copan Valley

    EXCEL FORMAT- TAB_A02.XLS

This file contains the data in a spreadsheet, Excel format (.xls), to be read directly. Click here to see the fileTAB_A02.XLS (25,264 bytes) and then download it to your disk.
 
 
    ASCII FORMAT- TAB_A02.TXT

This file contains the data from 38 contexts with obsidian chipped artifacts from the Copan valley. The contents for every context are presented in one line, the data file TAB_A02.TXT has 38 lines, with 30 variables separated with commas. The 30 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 
 Prismatic blades (N)
8 
 Prismatic blades (%)
9 
 Macroblades (N)
10 
 Macroblades (%)
11 
 Polyhedral cores (N)
12 
 Polyhedral cores (%)
13 
 Prismatic blades points (N)
14 
 Prismatic blades points (%)
15 
 Bifacial points(N)
16 
 Bifacial points (%)
17 
 Bifacial thinning flakes (N)
18 
 Bifacial thinning flakes (%)
19 
 General debitage (N)
20 
 General debitage (%)
21 
 Scrapers (N)
22 
 Scrapers (%)
23 
 Notched flakes (N)
24 
 Notched flakes (%)
25 
 Denticulates (N)
26 
 Denticulates (%)
27 
 Flake cores (N)
28 
 Flake cores (%)
29 
 Total (N)
30 
 Total (%)
  

The first line of the file, for example, looks like this:

"Faldas","","","","IV/59","",119,52.9,4,1.8,0,0,0,0,10,4.4,6,2.7,80,35.6,4,1.8,0,0,0,0,2,0.9,225,100.0

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. This operation present 119 prismatic blades (52.9%), 4 macroblades (1.8%), 0 polyhedral cores (0%), 0 prismatic blade points (0%), 10 bifacial points (4.4%), 6 bifacial thinning flakes (2.7), 80 general debitage (35.6%), 4 scrapers (1.8%), 0 notched flakes (0%), 0 denticulates (0%), 2 flake core (0.9%), the total number of chert artifacts is 225 artifacts (100.0%). The quotation marks around "Faldas" and "IV/59" indicate that these variables are alphanumeric and "" indicates the absence of data.

The last (38th) line is:

"Vega","Principal Group","10L-1","","Great Plaza","V/62,63",104,83.2,2,1.6,3,2.4,0,0,0,0,0,0,14,11.2,0,0,0,0,0,0,2,1.6,125,100.0

Which indicates the physiographic zone "Vega", subcommunity "Principal Group", group "10L-1", does not presents stratigraphic sequence. Belongs to the operation "Grand Plaza", lot number "V/62,63". This operation present 104 prismatic blades (83.2%), 2 macroblades (1.6%), 3 polyhedral cores (2.4%), 0 prismatic blade points (0%), 0 bifacial points (0%), 0 bifacial thinning flakes (0%), 14 general debitage (11.2%), 0 scrapers (0%), 0 notched flakes (0%), 0 denticulates (0%), 2 flake core (1.6%), the total number of chert artifacts is 125 artifacts (100.0%). The quotation marks around "Vega", "Principal Group" and "IV/59" indicate that these variables are alphanumeric and "" indicates the absence of data.

Click here to download the file TAB_A02.TXT (4,246 bytes) then ask your Web browser to save it to a disk.

 


 
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