Descriptive Attribute	Value(s)
Designator	Floor/Surface
Context rating	Primary
General remarks	Locus 171 is a burnt surface emerging out of the west baulk in the center of the trench. Our initial though was that it represented an outdoor work surface associated with wall Locus 159, however no connection could be confirmed. Upon removal it probably represented an oven or a fire place given the presence of a rock and potsherd foundation at the bottom of the locus running into the western baulk.
Strat below	168
Strat above	193
Strat abuts	175, 180, 186
Top depth center	587.68
Top depth north-west	587.67
Bottom depth north	587.48
Bottom depth west	587.51
Bottom depth south-east	587.47
Dimension length	1.7
Dimension width	1.35
Start date	2007-06-23
End date	2007-07-01
Color	7.5 YR 4/3 Brown
Texture	silt
Composition	compact silt with cobbles, pebbles, burnt soil, ash, and mudbrick debris
Tentative Date	Ubaid
Has note	Contexts excavated in trenches were recorded using the "locus system." A locus is any discrete three-dimensional entity excavated in a trench. The key to the locus system is the recognition that a locus is any one thing. Differences in soil composition or texture are therefore as important as, for example, the difference between a pit and a wall. If two entities were distinct, they were considered separate loci and were therefore assigned separate locus numbers. It should also be noted that every context excavated in a trench was given a locus number and thus the trench itself is made up completely of excavated loci.