Fróðskaparrit - 01.01.2009, Page 172

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CHEMICAL SEDIMENT VARIABLES FROM THE FAROE AREA:
ORGANIC CONTENT, NITROGEN, PHOSPHORUS, ZINC, AND COPPER
(1986).
or by van-Veen type grab. Due to the small
sample volume, some of the core samples
were from the top 4 cm of the sediment. In
the centrally located sites (SU05, KA05 and
SK05), two replicate core samples were ana-
lyzed.
In the period from 1987-1990 josefson
(2001) took samples at two soft bottom lo-
cations on the Faroe Plateau (Skeivibanki
and East off Suðuroy) at a depth of 317-367
m (Fig. 9). Samples were obtained with 0.1
m2 van Veen-type grab and a two cm surface
layer of the sediment was used for analysis.
No further information about pre-treatment
or methods of analysis was given.
In a survey southeast off the Faroe
Samples n Depth m LOI %
W87 3 329-350 2.8-3.3
W88 15 377-367 2.7-3.9
£87 1 350 43
£88 2 349-351 3.3-41
Table 8. Data from Josefson (2001) LOI data from two
locations on the Faroe shelf.
Plateau in 1999, Crøsvik et al. (2000) took
20 seabed samples from eleven different lo-
cations (Fig. 10). Samples were analyzed for
different chemical variables; among these
were LOI, zinc and copper. All samples were
collected with a 0.1 m2 van-Veen-type grab
and analyzed by Rogaland Research Labora-
tory. Metals were analyzed after sieving of
the dried material (0.5 mm sieve).
All samples were described to be from
sandy sediments, and the stations had a
depth between 275 and 580 m.
In Mannvikand Petersen (2002), there
is information about seabed chemical vari-
ables from a survey southeast off the Faroe
Islands in the Faroe-Shetland Channel at a
depth of 820-1180 m (Fig. 11). The samples
were obtained with 0.5 m2 box-corer. Three
replicates from each station were used to
give a mean value for the top 0-1 cm of the
sediment. Samples were analyzed by Akva-
plan-niva.
The sediments were described as fine to
coarse sands.
KMBL (2006) sampled the seabed
around the "Brugdan" hydrocarbon explo-
ration well before and after drilling opera-
tions. Because of a possible impact from the
drilling operations on the seabed only data
from the first survey (before drilling) are in-
cluded in this paper. Eighteen samples were