Dark brown lens of soil over SU No. 16011. Possible organic decay layer. (ELM)

16008 is a deposit over SU No. 16011 consisting of a dark brown, medium friable, silty-sand. There are infrequent pottery inclusions and a few isolated bone and charcoal fragments. A single unusual rock was found and bagged for geological examination; possible grinding stone? SU No. 16008 is very shallow: 2 cm deep across its limits. Unlikely the result of a burn event. Possible organic decay layer, possible anthropic dump? ELM: I believe the most likey explanation for the deposition of this lens of soil is that it is the result of an organic decay event where organic (plant) material was deposited and left to decay. The lack of charcoal and pottery inclusions suggests to me that this is neither a burn layer nor an anthropic deposit layer. The ceramic and bone found in the layer cannot be ruled out as coming from SU 16011, along the margins of 16008. Depth was deeper than orginal excavation. Chunks of dark soil were mixed in to 16011 under this context for 6-8 cm.