Den sen- och postglaciala landskapsutvecklingen i Tvååker, Halland
(2025) In Examensarbeten i geologi vid Lunds universitet GEOL02 20251Department of Geology
- Abstract
- In Tvååker, Halland a project by the name of Naturplats Tvååkers Mosse is under development. The project is a nature area to be opened to the public, and is aimed to inform visitors of how the landscape has developed since the latest ice age. To do this, a number of signs are to be put up, including information for which this report serves as a basis. The report focuses on a number of landforms in and around the area comprised of a sequence of end moraines as well as a beach ridge. The questions of when and how these were formed relative to the course of the latest deglaciation are answered through map analysis, literature search, field work, sediment sampling and analysis. The results show that it is possible to connect the beach ridge... (More)
- In Tvååker, Halland a project by the name of Naturplats Tvååkers Mosse is under development. The project is a nature area to be opened to the public, and is aimed to inform visitors of how the landscape has developed since the latest ice age. To do this, a number of signs are to be put up, including information for which this report serves as a basis. The report focuses on a number of landforms in and around the area comprised of a sequence of end moraines as well as a beach ridge. The questions of when and how these were formed relative to the course of the latest deglaciation are answered through map analysis, literature search, field work, sediment sampling and analysis. The results show that it is possible to connect the beach ridge complex in Naturplats Tvååkers Mosse to that in Kärragärde, where previous studies give the beach ridge an approximate age of 7.0 ka. This also connects their formation to the regional postglacial transgression maximum. The end moraines are associated with the Halland Coastal Moraines with ages of about 17.4–16,0 ka, and are interpreted as push moraines. Coarse particle size fractions of sediment from the eastern beach ridge demonstrate very angular shapes, giving an uncertain interpretation of the formational process, but this could be explained by three factors: the sediment has its origin from closeby till, the angular material has been buried and protected from erosion, the sediment has been affected by wind abrasion. Further studies in regards to the aforementioned processes are recommended, particularly because sampling was done which makes future luminescense dating possible. (Less)
- Abstract (Swedish)
- I Tvååker, Halland drivs ett projekt som heter Naturplats Tvååkers Mosse. I denna naturplats ska ett antal informationsskyltar sättas upp för att informera besökare om landskapets utveckling sedan den senaste istiden. Detta arbete utgör grunden för den information som berör bildningen av ett antal ryggformer: en serie ändmoräner och en strandvall belägna kring projektplatsen. Frågorna på när och hur dessa bildats i förhållande till deglaciationsförloppet ska besvaras med hjälp av kartanalys, litteratursökning, fältbesök, sedimentprovtagning och analys. Resultaten möjliggör att strandvallskomplexet i naturplatsen kan kopplas till det i Kärragärde, där tidigare studier ger en ungefärlig ålder på komplexet till ca 7,0 ka. Detta förbinder även... (More)
- I Tvååker, Halland drivs ett projekt som heter Naturplats Tvååkers Mosse. I denna naturplats ska ett antal informationsskyltar sättas upp för att informera besökare om landskapets utveckling sedan den senaste istiden. Detta arbete utgör grunden för den information som berör bildningen av ett antal ryggformer: en serie ändmoräner och en strandvall belägna kring projektplatsen. Frågorna på när och hur dessa bildats i förhållande till deglaciationsförloppet ska besvaras med hjälp av kartanalys, litteratursökning, fältbesök, sedimentprovtagning och analys. Resultaten möjliggör att strandvallskomplexet i naturplatsen kan kopplas till det i Kärragärde, där tidigare studier ger en ungefärlig ålder på komplexet till ca 7,0 ka. Detta förbinder även dess bildning till det regionala post-glaciala transgressionsmaximumet. Ändmoränerna associeras med Hallands kustmoräner med en ungefärlig ålder på 17,4–16,0 ka och är tolkade som hopskjutningsmoräner. Grova fraktioner av sedimentet i komplexets östra vall uppvisar mycket kantiga partikelformer, vilket ger en osäker bedömning på bildningsprocessen men skulle rimligen kunna förklaras av tre faktorer: sedimentet har sitt ursprung från närliggande morän, det kantiga materialet har överlagrats och skyddats från erosion, sedimentet har påverkats av vindslipning. Kring detta föreslås vidare studier, särskilt då provtagning för framtida luminiscensdatering har gjorts i samband med detta arbete. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/9201312
- author
- Heim, Emelie LU
- supervisor
- organization
- course
- GEOL02 20251
- year
- 2025
- type
- M2 - Bachelor Degree
- subject
- keywords
- deglaciation, beach ridge, Halland, Tvååker, shorelevel displacement
- publication/series
- Examensarbeten i geologi vid Lunds universitet
- report number
- 714
- language
- Swedish
- id
- 9201312
- date added to LUP
- 2025-06-17 14:02:39
- date last changed
- 2025-06-17 14:02:39
@misc{9201312,
abstract = {{In Tvååker, Halland a project by the name of Naturplats Tvååkers Mosse is under development. The project is a nature area to be opened to the public, and is aimed to inform visitors of how the landscape has developed since the latest ice age. To do this, a number of signs are to be put up, including information for which this report serves as a basis. The report focuses on a number of landforms in and around the area comprised of a sequence of end moraines as well as a beach ridge. The questions of when and how these were formed relative to the course of the latest deglaciation are answered through map analysis, literature search, field work, sediment sampling and analysis. The results show that it is possible to connect the beach ridge complex in Naturplats Tvååkers Mosse to that in Kärragärde, where previous studies give the beach ridge an approximate age of 7.0 ka. This also connects their formation to the regional postglacial transgression maximum. The end moraines are associated with the Halland Coastal Moraines with ages of about 17.4–16,0 ka, and are interpreted as push moraines. Coarse particle size fractions of sediment from the eastern beach ridge demonstrate very angular shapes, giving an uncertain interpretation of the formational process, but this could be explained by three factors: the sediment has its origin from closeby till, the angular material has been buried and protected from erosion, the sediment has been affected by wind abrasion. Further studies in regards to the aforementioned processes are recommended, particularly because sampling was done which makes future luminescense dating possible.}},
author = {{Heim, Emelie}},
language = {{swe}},
note = {{Student Paper}},
series = {{Examensarbeten i geologi vid Lunds universitet}},
title = {{Den sen- och postglaciala landskapsutvecklingen i Tvååker, Halland}},
year = {{2025}},
}