Relation between sediment flux variation and land use patterns along the Swedish Baltic Sea coast
(2013) In Dissertations at Geology at Lund University GEOR02 20131Department of Geology
- Abstract
- The Baltic Sea is one of the most studied seas in the world and has been in the spotlight due to its wide range of environmental problems. Human impact and climate influence on the Baltic Sea is of major concerns. This study aims to reconstruct the environment of the south east coast of the Baltic Sea and also analyze the human impact and climate influence in changing the landscape and its impact on sedimentation pattern of the marine coastal sediments over time through high resolution particle size analysis using the Sedigraph method. Two stations were selected from the southeastern coast of the Baltic Sea: Gåsfjärden, Västervik and Yttre Redden, Karlskrona. Five cores were collected from Gåsfjärden, one 5.58 m core and four shorter... (More)
- The Baltic Sea is one of the most studied seas in the world and has been in the spotlight due to its wide range of environmental problems. Human impact and climate influence on the Baltic Sea is of major concerns. This study aims to reconstruct the environment of the south east coast of the Baltic Sea and also analyze the human impact and climate influence in changing the landscape and its impact on sedimentation pattern of the marine coastal sediments over time through high resolution particle size analysis using the Sedigraph method. Two stations were selected from the southeastern coast of the Baltic Sea: Gåsfjärden, Västervik and Yttre Redden, Karlskrona. Five cores were collected from Gåsfjärden, one 5.58 m core and four shorter Gemini cores (~0.5m) and similarly five cores were collected from Karlskrona, one 5.20 m and 4 shorter Gemini cores (~0.4m). The age model for both of the cores are based on AMS 14C dates. The Gåsfjärden core shows the last 6000 years and Karlskrona extends to the last 7000 years. The Gåsfjärden core has laminations in the whole core, which imply continuous low oxygen conditions in the area. The up-core decrease in the finer fraction is observed more or less throughout the Gåsfjärden core data which is attributed to deforestation, expansion of agriculture, erosion, and also the hydrographic conditions of the Baltic Sea. In the Karlskrona core there are large variations observed in the lower part of the core with little variability at the upper part. The large variability at the lower part is possibly linked to Littorina transgression and the small variability at upper part could be due to agricultural activities and climate changes. Natural drainage of the wetlands and ditching of fields are observed in the Gemini cores of both of the stations. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/3625668
- author
- Khan, Mansoor LU
- supervisor
-
- Helena Filipsson LU
- Anupam Ghosh LU
- organization
- course
- GEOR02 20131
- year
- 2013
- type
- H2 - Master's Degree (Two Years)
- subject
- keywords
- Baltic Sea, landscape, coastal sediments, sedigraph, Gåsfjärden, Karlskrona, gemini cores
- publication/series
- Dissertations at Geology at Lund University
- report number
- 331
- language
- English
- id
- 3625668
- date added to LUP
- 2013-03-26 13:46:32
- date last changed
- 2013-03-26 13:46:32
@misc{3625668,
abstract = {{The Baltic Sea is one of the most studied seas in the world and has been in the spotlight due to its wide range of environmental problems. Human impact and climate influence on the Baltic Sea is of major concerns. This study aims to reconstruct the environment of the south east coast of the Baltic Sea and also analyze the human impact and climate influence in changing the landscape and its impact on sedimentation pattern of the marine coastal sediments over time through high resolution particle size analysis using the Sedigraph method. Two stations were selected from the southeastern coast of the Baltic Sea: Gåsfjärden, Västervik and Yttre Redden, Karlskrona. Five cores were collected from Gåsfjärden, one 5.58 m core and four shorter Gemini cores (~0.5m) and similarly five cores were collected from Karlskrona, one 5.20 m and 4 shorter Gemini cores (~0.4m). The age model for both of the cores are based on AMS 14C dates. The Gåsfjärden core shows the last 6000 years and Karlskrona extends to the last 7000 years. The Gåsfjärden core has laminations in the whole core, which imply continuous low oxygen conditions in the area. The up-core decrease in the finer fraction is observed more or less throughout the Gåsfjärden core data which is attributed to deforestation, expansion of agriculture, erosion, and also the hydrographic conditions of the Baltic Sea. In the Karlskrona core there are large variations observed in the lower part of the core with little variability at the upper part. The large variability at the lower part is possibly linked to Littorina transgression and the small variability at upper part could be due to agricultural activities and climate changes. Natural drainage of the wetlands and ditching of fields are observed in the Gemini cores of both of the stations.}},
author = {{Khan, Mansoor}},
language = {{eng}},
note = {{Student Paper}},
series = {{Dissertations at Geology at Lund University}},
title = {{Relation between sediment flux variation and land use patterns along the Swedish Baltic Sea coast}},
year = {{2013}},
}