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aes ARCHEOLOGY IN BRITISH GUIANA 125 
BARIMA 
MODERN 
BUILDINGS 
36 CLUMPS OF BAMBOO 
—-— LIMIT OF SITE 
~— MODERN CLEARING 
SS EE 
° 25M N 
Ficure 50.—Sketch map of N-2: Koriabo, a habitation site of the Koriabo Phase. 
limits approximately on the 5-meter contour. Sherds were exposed on 
the eroded creek bank and in paths. The vicinity of the modern 
buildings also produced fragments of painted chinaware, ginger beer 
bottles, and green glass. 
Three strata cuts were dug in the south part of the site in areas 
where the concentration appeared to be deepest and least distributed. 
Strata Cut 1, a 1-meter square controlled in 8-cm. levels, produced the 
following results: 
Level 0-8 cm___. Black loam with quartz chips and fragments of broken 
gneiss and granite; abundant sherds from the surface 
downward; no sterile humus zone. 
Level 8-16 em___ Conditions the same. 
Level 16-24 em__ Fragments of green glass from this level suggest disturb- 
ance by recent gardening activity. Sudden transition 
at 25-27 em. to more compact, sterile, light-orange clay 
mixed with occasional streaks of light gray. The com- 
pactness of the sterile deposit very distinct when trow- 
eling. ; 
Level 24-65 em__ At 40 cm., the gray gradually fades out and soil becomes 
a compact, bright-orange, sterile clay with large quanti- 
ties of iron concretions. 
Strata Cut 2, dug 7 meters south of Cut 1, measures 1 meter in an 
east-west direction by 2 meters north-south. Also controlled in 
8-cm. levels, it had the following characteristics: 
