Megalithic Tombs in Western Iberia by Scarre Chris;Oosterbeek Luiz;

Author:Scarre, Chris;Oosterbeek, Luiz;
Language: eng
Format: epub
Tags: HISTORY / Europe / General
Publisher: Oxbow Books, Limited
Published: 2020-01-30T00:00:00+00:00

Table 4.4. pH and electrical conductivity values for the buried soils at Amoreira and the Anta da Lajinha

Site/sample

pH

Electrical conductivity (mV)

Amoreira:

6.18

27

Anta da Lajinha: 1/1 upper

4.54

13

1/1 lower

4.83

7

1/2

4.52

20

1/3

4.48

14

1/4 upper

4.43

20

1/4 lower

4.49

16

Northwards towards the edge of the valley bottom/base of the slope, trench 7 revealed a very different profile. Beneath about 70 cm of silt loam and pebble hillwash material and c. 30 cm of brown silt loam alluvial material, there was a very dark brown to black silty clay loam horizon developed on the metamorphic bedrock. This highly organic horizon with a stone-free upper half is suggestive of a buried soil, even if it is, in effect, an incipient soil developed in alluvial material. Given the rarity of such an occurrence in the geoarchaeological survey as a whole, this profile was extensively sampled.

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