The brackish Baltic Sea Yoldia Stage – palaeoenvironmental implications from marine benthic fauna and stable oxygen isotopes
Eighteen sites in middle Sweden with sediments deposited during the brackish phase of the Yoldia Sea have been investigated with respect to the marine calcareous benthic fauna (i.e. foraminifera, ostracods and molluscs) and stable oxygen isotopes. At most sites the sediments consist of varved clay s...
Published in: | Boreas |
---|---|
Main Author: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2001
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/j.1502-3885.2001.tb01048.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1502-3885.2001.tb01048.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1502-3885.2001.tb01048.x |
id |
crwiley:10.1111/j.1502-3885.2001.tb01048.x |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/j.1502-3885.2001.tb01048.x 2024-06-02T08:08:17+00:00 The brackish Baltic Sea Yoldia Stage – palaeoenvironmental implications from marine benthic fauna and stable oxygen isotopes SCHONING, KRISTIAN 2001 http://dx.doi.org/10.1111/j.1502-3885.2001.tb01048.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1502-3885.2001.tb01048.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1502-3885.2001.tb01048.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Boreas volume 30, issue 4, page 290-298 ISSN 0300-9483 1502-3885 journal-article 2001 crwiley https://doi.org/10.1111/j.1502-3885.2001.tb01048.x 2024-05-03T11:39:57Z Eighteen sites in middle Sweden with sediments deposited during the brackish phase of the Yoldia Sea have been investigated with respect to the marine calcareous benthic fauna (i.e. foraminifera, ostracods and molluscs) and stable oxygen isotopes. At most sites the sediments consist of varved clay sequences which are correlated to the Swedish Time Scale and dated to the Early Preboreal. A marine benthic fauna has been recorded at 11 sites. The fauna occurs during c. 100 clay‐varve years and the total length of the brackish phase is estimated to be 110–190 years. Near the inlet of saline water the fauna was dominated by the foraminifera Elphidium excavatum (Terquem) and further to the east the ostracod Cytheropteron montrosiense (Brady, Crosskey and Robertson) dominated. At shallower depths the fauna occurred during a shorter period owing to the formation of a stratified water column with a low‐saline surface water. Very low δ 18 O c values were recorded, i.e. between ‐9.9% and ‐4.7% because of the influence of meltwater from the ice sheet. A different isotope fractionation between the foraminifera E. excavatum and the ostracod C. montrosiense was recorded. Article in Journal/Newspaper Ice Sheet Wiley Online Library Boreas 30 4 290 298 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Eighteen sites in middle Sweden with sediments deposited during the brackish phase of the Yoldia Sea have been investigated with respect to the marine calcareous benthic fauna (i.e. foraminifera, ostracods and molluscs) and stable oxygen isotopes. At most sites the sediments consist of varved clay sequences which are correlated to the Swedish Time Scale and dated to the Early Preboreal. A marine benthic fauna has been recorded at 11 sites. The fauna occurs during c. 100 clay‐varve years and the total length of the brackish phase is estimated to be 110–190 years. Near the inlet of saline water the fauna was dominated by the foraminifera Elphidium excavatum (Terquem) and further to the east the ostracod Cytheropteron montrosiense (Brady, Crosskey and Robertson) dominated. At shallower depths the fauna occurred during a shorter period owing to the formation of a stratified water column with a low‐saline surface water. Very low δ 18 O c values were recorded, i.e. between ‐9.9% and ‐4.7% because of the influence of meltwater from the ice sheet. A different isotope fractionation between the foraminifera E. excavatum and the ostracod C. montrosiense was recorded. |
format |
Article in Journal/Newspaper |
author |
SCHONING, KRISTIAN |
spellingShingle |
SCHONING, KRISTIAN The brackish Baltic Sea Yoldia Stage – palaeoenvironmental implications from marine benthic fauna and stable oxygen isotopes |
author_facet |
SCHONING, KRISTIAN |
author_sort |
SCHONING, KRISTIAN |
title |
The brackish Baltic Sea Yoldia Stage – palaeoenvironmental implications from marine benthic fauna and stable oxygen isotopes |
title_short |
The brackish Baltic Sea Yoldia Stage – palaeoenvironmental implications from marine benthic fauna and stable oxygen isotopes |
title_full |
The brackish Baltic Sea Yoldia Stage – palaeoenvironmental implications from marine benthic fauna and stable oxygen isotopes |
title_fullStr |
The brackish Baltic Sea Yoldia Stage – palaeoenvironmental implications from marine benthic fauna and stable oxygen isotopes |
title_full_unstemmed |
The brackish Baltic Sea Yoldia Stage – palaeoenvironmental implications from marine benthic fauna and stable oxygen isotopes |
title_sort |
brackish baltic sea yoldia stage – palaeoenvironmental implications from marine benthic fauna and stable oxygen isotopes |
publisher |
Wiley |
publishDate |
2001 |
url |
http://dx.doi.org/10.1111/j.1502-3885.2001.tb01048.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1502-3885.2001.tb01048.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1502-3885.2001.tb01048.x |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
Boreas volume 30, issue 4, page 290-298 ISSN 0300-9483 1502-3885 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1502-3885.2001.tb01048.x |
container_title |
Boreas |
container_volume |
30 |
container_issue |
4 |
container_start_page |
290 |
op_container_end_page |
298 |
_version_ |
1800753499219165184 |