017

Clay Petrography

Provenience

Posthole on east side of Old Northern Highway beyond Santa Marta at Colha

Soil suite

Jobo Plain

Percentage of shrinkage before firing

.033

Percentage of shrinkage after firing

.066

Munsell color before firing

2.5YR 6/4

Munsell color after firing

5YR 6/8

Aplastic spacing

Single to double

Aplastic shape

Subangular

Aplastic sorting

Well

B-Fabric

Speckled

Aplastics in B-Fabric (below 0.05 mm)

No distinct minerals

Calcite (%)

3

Quartz (%)

27

Oxides (%)

1

Chert (%)

1

Clay (%)

62

Other aplastics

Mudstone

Other aplastics (%)

3

Additional aplastics

Micrite

Additional aplastics (%)

3