Excavation of and analysis of Coleoptera from a late Holocene natural spring from south central Sweden
2014 (English)In: 31st Nordic Geological Winter Meeting. Lund, Sweden, January 8-10 2014.: Quaternary geology., Lund: Geologiska Föreningen , 2014, 151-151 p.Conference paper, Abstract (Refereed)
A natural spring deposit in glacial till, recovered during archaeological rescue excavations in south central Sweden, was excavated and later investigated through analysis of the Coleoptera remains found in peat deposit in the spring outflow. These parts of Sweden have been heavily affected by land uplift since the last glaciation (Weichsel) in Scandinavia, and the area studied in this project was raised above sea level about 3700 BP. Samples were collected for Coleoptera analysis and samples showed a high preservation degree as a result of the extraordinary moist conditions in the sediments. 14C-datings on samples provided dates 670-870 respectively 660-810 AD and the spring was most probably abandoned already by the late Iron Age (600-800th century). Evidence of a half-circle boulder construction provides clear evidence that the spring has been used early in prehistory and most probably cleaned out periodically.
The Coleoptera assemblage from the samples is dominated by beetles that indicate both open landscapes, grazing as well as forest environments, much resembling the present day situation as the spring is situated in the border between arable land and mixed deciduous and coniferous forest. Carabidae group of beetles was used to see the correspondence between these species and ground conditions, i.e. inorganic and organic compounds, which they very well reflected. Two identified threatened beetle species, today listed in red list of Swedish species, are both connected to the old type of agricultural landscape decreasing in Sweden because of the radical changes in this type of environment.
Place, publisher, year, edition, pages
Lund: Geologiska Föreningen , 2014. 151-151 p.
Natural spring deposit, bronze age, south central Sweden
Other Earth and Related Environmental Sciences Archaeology
Research subject Quarternary Geology
IdentifiersURN: urn:nbn:se:uu:diva-215755OAI: oai:DiVA.org:uu-215755DiVA: diva2:688380
31st Nordic Geological Winter Meeting. Lund, Sweden, January 8-10 2014.