Unknown
Grzybowski Foundation
In:
In: Contributions to the micropaleontology and paleoceanography of the northern North Atlantic (collected results from the GEOMAR Bungalow Working Group). , ed. by Hass, H. C. and Kaminski, M. A. Grzybowski Foundation, Krakow, pp. 199-216.
Publication Date:
2016-01-19
Description:
Calcareous benthic foraminifera from four cores from the southern flank of the Skagerrak (NE
North Sea) were investigated in order to estimate the response of this fossil group to climate
fluctuations during the upper part of the Holocene. Q-mode factor analyses were carried out
for the most abundant taxa.
The results reveal C. laeuigata, H. baltllica, M. barleeanus, G. turgida, B. mal;yirintn, and U. yeregrirtn
as most conm~on/importantta xa. In the upper part of all cores B. skagerrakensis shows a significant
increase and dominates the foraminifer fauna in cores from greater water depth. The data
suggest no direct relation between the fluctuations of foraminifer assemblages and climate
change. However, climate forced fluctuations in the strength of the water-circulation caused
considerable changes in the foraminifer assemblages. Three major assemblages were used for
environmental analysis: H. baltlticn dominated assemblages were identified as indicators for
stagnant conditions. They characterize the oldest core sections, most probably the Holocene climate
optimum. Cassidl~linala euigata assemblages seem to indicate increasing current strength,
a process that is often associated with deteriorating climatic conditions. Briznlirtn skaCqcrrnkensis
appears to have a certain relation to unstable water masses, and probably a tolerance for increasing
polution of the North Sea since the advent of modern industrialization.
Type:
Book chapter
,
NonPeerReviewed
Format:
text
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