171
Clay Petrography
Provenience
Rio Bravo, SW side after bridge
Soil suite
Shipyard Plain
Percentage of shrinkage before firing
.066
Percentage of shrinkage after firing
.066
Munsell color before firing
10YR 4/1
Munsell color after firing
10YR 6/4
Aplastic spacing
More than double
Aplastic shape
Round
Aplastic sorting
Poor
B-Fabric
Streams
Other aplastics
Mudstone
Additional aplastics
Gypsum