VSF 2010 Report - Nabo

Some bioturbation by roots and worms. 5YR 4/3 Reddish Brown
[10415] Soil or turf lens within redeposited gravel layer [10414]. Moderately compacted mid pinkish brown
sandy silt with occasional charcoal flecks. 1-3cm thick. Clear boundary. Homogenous. Some bioturbation by
roots and worms. 7.5YR 4/6 Strong Brown
[10416] Possible buried soil layer. Firm dark orangey greyish brown silt with occasional charcoal flecks and
small natural gravels. 2-5cm thick. Clear boundary above and below. Homogenous. Some bioturbation by roots
and worms. 5YR 3/3 Dark Reddish Brown
[10417] Midden deposit. Firm mid orangey pinkish brown sandy silt mottled c. 10% with mid greyish brown,
with moderately frequent charcoal flecks. 2-3cm thick. Clear boundary with [10416], slightly mixed with
[10408]. Heterogeneous, some bioturbation by worms. 2.5YR 3/3 Dark Reddish Brown
[10418] Midden deposit. Firm dark greyish brown sandy silt mottled c. 10% with mid reddish brown, with
moderately frequent charcoal flecks and small natural gravels. 1cm thick. Slightly mixed boundary with [10417]
and mixed with [10419]. Heterogeneous. Some bioturbation by worms. 5YR 2.5/2 Dark Reddish Brown
[10419] Midden deposit possibly including burnt turf. Firm mid reddish brown sandy silt mottled c. 5% with
mid pinkish red and yellowish orange, and c. 10% black, with frequent charcoal flecks and occasional small
natural gravels. 2-5cm thick. Mixed boundary with [10418], clear with [10420]. Very heterogeneous. 5YR 4/6
Yellowish Red
[10420] Midden deposit. Firm mid yellowish-greyish brown sandy silt with moderately frequent charcoal flecks
and natural gravels. 2-4cm thick. Clear boundary with [10419], slightly mixed with [10421]. Homogenous.
Some bioturbation by roots. 7.5YR 4/4 Brown
[10421] Midden deposit. Firm mid to light pinkish brown sandy silt mottled c. 20% with mid brownish grey,
with frequent charcoal flecks and fragments and occasional natural gravels.1-3cm thick. Slightly mixed
boundary with [10420], clear with [10422]. Very heterogenous. Some bioturbation by roots. 5YR 3/3 Dark
Reddish Brown
[10422] Buried soil/old land surface including burnt patches. Firm very dark reddish brown sandy silt with very
frequent charcoal flecks and occasional natural gravels. Clear boundary with [10421], natural below. Fairly
homogenous. 7.5YR 2.5/2 Very Dark Brown
Results of Botanical Anaysis
Wood Charcoal Identifications
For each of the nineteen samples analysed, 50 charcoal fragments were identified to genus
level. Of the total of 950 charcoal fragments identified, all were of the genus Betula. Due to
this lack of variability, these results have not been presented as a table in this report.
Wood Charcoal and Seaweed Quantification
Table 1 shows the amount of charcoal and seaweed in each of the 19 samples analysed.
Charcoal is expressed as volume in ml of charcoal fragments greater than 1 mm in the
sample. Seaweed is expressed as the number of fragments larger than 1 mm per sample.
These values have not been expressed per litre as all the samples taken were of the same
volume (5 l).
159