Dynamic Holocene glacial history of St. Jonsfjorden, Svalbard
(2017) In Boreas 46(3). p.585-603- Abstract
Evidence of a dynamic Holocene glacial history is preserved in the terrestrial and marine archives of St. Jonsfjorden, a small fjord-system on the west coast of Spitsbergen, Svalbard. High-resolution, remotely sensed imagery from marine and terrestrial environments was used to construct geomorphological maps that highlight an intricate glacial history of the entire fjord-system. The geomorphology and stratigraphy indicate an early Holocene local glacier advance constrained to the Lateglacial–early Holocene transition. Identification and 14C dating of the thermophilous bivalve mollusc Modiolus modiolus to 10.0±0.12 cal. ka BP suggest a rapid northward migration of the species shortly after deglaciation. Further evidence... (More)
Evidence of a dynamic Holocene glacial history is preserved in the terrestrial and marine archives of St. Jonsfjorden, a small fjord-system on the west coast of Spitsbergen, Svalbard. High-resolution, remotely sensed imagery from marine and terrestrial environments was used to construct geomorphological maps that highlight an intricate glacial history of the entire fjord-system. The geomorphology and stratigraphy indicate an early Holocene local glacier advance constrained to the Lateglacial–early Holocene transition. Identification and 14C dating of the thermophilous bivalve mollusc Modiolus modiolus to 10.0±0.12 cal. ka BP suggest a rapid northward migration of the species shortly after deglaciation. Further evidence enhances the understanding of the onset and subsequent climax of the Neoglacial-Little Ice Age in inner St. Jonsfjorden. The present-day terminus of Osbornebreen, the dominating glacier system in St. Jonsfjorden, is located over 8.5 km up-fjord from its Neoglacial maximum extent. Cross-cutting relationships suggest subsequent advances of all the smaller glaciers in the area following the break-up of Osbornebreen. Glacial deposits, landforms and their cross-cutting relationships observed in both terrestrial and marine settings imply a complex and highly dynamic environment through the later part of the Holocene.
(Less)
- author
- Farnsworth, Wesley R. ; Ingólfsson, Ólafur ; Noormets, Riko ; Allaart, Lis ; Alexanderson, Helena LU ; Henriksen, Mona and Schomacker, Anders LU
- organization
- publishing date
- 2017-07-01
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Boreas
- volume
- 46
- issue
- 3
- pages
- 19 pages
- publisher
- John Wiley & Sons Inc.
- external identifiers
-
- wos:000404144500014
- scopus:85021227797
- ISSN
- 0300-9483
- DOI
- 10.1111/bor.12269
- project
- Glacial history of Svalbard
- language
- English
- LU publication?
- yes
- id
- 1ca2e5e6-24da-4796-905d-57964c59c431
- date added to LUP
- 2017-07-11 11:16:56
- date last changed
- 2024-04-14 14:41:17
@article{1ca2e5e6-24da-4796-905d-57964c59c431,
abstract = {{<p>Evidence of a dynamic Holocene glacial history is preserved in the terrestrial and marine archives of St. Jonsfjorden, a small fjord-system on the west coast of Spitsbergen, Svalbard. High-resolution, remotely sensed imagery from marine and terrestrial environments was used to construct geomorphological maps that highlight an intricate glacial history of the entire fjord-system. The geomorphology and stratigraphy indicate an early Holocene local glacier advance constrained to the Lateglacial–early Holocene transition. Identification and <sup>14</sup>C dating of the thermophilous bivalve mollusc Modiolus modiolus to 10.0±0.12 cal. ka BP suggest a rapid northward migration of the species shortly after deglaciation. Further evidence enhances the understanding of the onset and subsequent climax of the Neoglacial-Little Ice Age in inner St. Jonsfjorden. The present-day terminus of Osbornebreen, the dominating glacier system in St. Jonsfjorden, is located over 8.5 km up-fjord from its Neoglacial maximum extent. Cross-cutting relationships suggest subsequent advances of all the smaller glaciers in the area following the break-up of Osbornebreen. Glacial deposits, landforms and their cross-cutting relationships observed in both terrestrial and marine settings imply a complex and highly dynamic environment through the later part of the Holocene.</p>}},
author = {{Farnsworth, Wesley R. and Ingólfsson, Ólafur and Noormets, Riko and Allaart, Lis and Alexanderson, Helena and Henriksen, Mona and Schomacker, Anders}},
issn = {{0300-9483}},
language = {{eng}},
month = {{07}},
number = {{3}},
pages = {{585--603}},
publisher = {{John Wiley & Sons Inc.}},
series = {{Boreas}},
title = {{Dynamic Holocene glacial history of St. Jonsfjorden, Svalbard}},
url = {{http://dx.doi.org/10.1111/bor.12269}},
doi = {{10.1111/bor.12269}},
volume = {{46}},
year = {{2017}},
}