Table2_v1_Episodic Atlantic Water Inflow Into the Independence Fjord System (Eastern North Greenland) During the Holocene and Last Glacial Period.XLSX
Four marine sediment cores from two sites in the Independence Fjord system near the Wandel Sea in eastern North Greenland were analyzed for their dinoflagellate cyst (dinocyst) and foraminiferal fossil content to gain insight into the water mass properties and evolution of the outer fjord system ove...
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ftfrontimediafig:oai:figshare.com:article/12956333 2023-05-15T15:19:14+02:00 Table2_v1_Episodic Atlantic Water Inflow Into the Independence Fjord System (Eastern North Greenland) During the Holocene and Last Glacial Period.XLSX Nicolas Van Nieuwenhove Audrey Limoges Niels Nørgaard-Pedersen Marit-Solveig Seidenkrantz Sofia Ribeiro 2020-09-15T04:16:30Z https://doi.org/10.3389/feart.2020.565670.s002 https://figshare.com/articles/dataset/Table2_v1_Episodic_Atlantic_Water_Inflow_Into_the_Independence_Fjord_System_Eastern_North_Greenland_During_the_Holocene_and_Last_Glacial_Period_XLSX/12956333 unknown doi:10.3389/feart.2020.565670.s002 https://figshare.com/articles/dataset/Table2_v1_Episodic_Atlantic_Water_Inflow_Into_the_Independence_Fjord_System_Eastern_North_Greenland_During_the_Holocene_and_Last_Glacial_Period_XLSX/12956333 Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change Holocene high arctic fjord Greenland Ice Sheet dinoflagellate cysts foraminifera Atlantic water Weichselian Dataset 2020 ftfrontimediafig https://doi.org/10.3389/feart.2020.565670.s002 2020-09-16T22:55:33Z Four marine sediment cores from two sites in the Independence Fjord system near the Wandel Sea in eastern North Greenland were analyzed for their dinoflagellate cyst (dinocyst) and foraminiferal fossil content to gain insight into the water mass properties and evolution of the outer fjord system over the Holocene and Last Glacial Period. While regarded as a climate-sensitive region, the climatic history of the area remains largely unknown and has been documented through the study of two composite marine sediment cores only once before. The results presented here reveal that Atlantic waters entered the Independence Fjord episodically during the studied interval. High concentrations of dinocysts and foraminifers in the upper few centimeters of the cores are in line with oceanographic measurements clearly illustrating that Atlantic-sourced waters make up the lower part of the water column in the area in modern times. Radiocarbon dating of foraminiferal tests and increasing microfossil concentrations and diversity toward the top of the cores suggest that this inflow has been occurring for at least 2,000 years and intensified toward recent times. The core sections below the upper few centimeters are devoid of (Quaternary) dinocysts and calcareous foraminifera with the exception of the lowermost segments of the longer cores. While low foraminiferal test quantities in these lowermost core sections prevent precise age determination, their radiocarbon ages reveal that they were deposited prior to 30,000 years ago, indicating the existence of a pathway for the occasional intrusion of Atlantic-sourced waters into, and thus relatively small local ice caps around, the fjord system prior to the Last Glacial Maximum. The previously documented early Holocene inflow of Atlantic-sourced waters was not detected in our records, likely suggesting a strong topographical and deglacial control on the routing of these water masses during the early Holocene. Dataset Arctic Climate change Foraminifera* Greenland Ice Sheet Independence fjord North Greenland Wandel Sea Frontiers: Figshare Arctic Greenland Wandel ENVELOPE(-64.000,-64.000,-65.083,-65.083) Independence Fjord ENVELOPE(-28.000,-28.000,82.133,82.133) |
institution |
Open Polar |
collection |
Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change Holocene high arctic fjord Greenland Ice Sheet dinoflagellate cysts foraminifera Atlantic water Weichselian |
spellingShingle |
Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change Holocene high arctic fjord Greenland Ice Sheet dinoflagellate cysts foraminifera Atlantic water Weichselian Nicolas Van Nieuwenhove Audrey Limoges Niels Nørgaard-Pedersen Marit-Solveig Seidenkrantz Sofia Ribeiro Table2_v1_Episodic Atlantic Water Inflow Into the Independence Fjord System (Eastern North Greenland) During the Holocene and Last Glacial Period.XLSX |
topic_facet |
Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change Holocene high arctic fjord Greenland Ice Sheet dinoflagellate cysts foraminifera Atlantic water Weichselian |
description |
Four marine sediment cores from two sites in the Independence Fjord system near the Wandel Sea in eastern North Greenland were analyzed for their dinoflagellate cyst (dinocyst) and foraminiferal fossil content to gain insight into the water mass properties and evolution of the outer fjord system over the Holocene and Last Glacial Period. While regarded as a climate-sensitive region, the climatic history of the area remains largely unknown and has been documented through the study of two composite marine sediment cores only once before. The results presented here reveal that Atlantic waters entered the Independence Fjord episodically during the studied interval. High concentrations of dinocysts and foraminifers in the upper few centimeters of the cores are in line with oceanographic measurements clearly illustrating that Atlantic-sourced waters make up the lower part of the water column in the area in modern times. Radiocarbon dating of foraminiferal tests and increasing microfossil concentrations and diversity toward the top of the cores suggest that this inflow has been occurring for at least 2,000 years and intensified toward recent times. The core sections below the upper few centimeters are devoid of (Quaternary) dinocysts and calcareous foraminifera with the exception of the lowermost segments of the longer cores. While low foraminiferal test quantities in these lowermost core sections prevent precise age determination, their radiocarbon ages reveal that they were deposited prior to 30,000 years ago, indicating the existence of a pathway for the occasional intrusion of Atlantic-sourced waters into, and thus relatively small local ice caps around, the fjord system prior to the Last Glacial Maximum. The previously documented early Holocene inflow of Atlantic-sourced waters was not detected in our records, likely suggesting a strong topographical and deglacial control on the routing of these water masses during the early Holocene. |
format |
Dataset |
author |
Nicolas Van Nieuwenhove Audrey Limoges Niels Nørgaard-Pedersen Marit-Solveig Seidenkrantz Sofia Ribeiro |
author_facet |
Nicolas Van Nieuwenhove Audrey Limoges Niels Nørgaard-Pedersen Marit-Solveig Seidenkrantz Sofia Ribeiro |
author_sort |
Nicolas Van Nieuwenhove |
title |
Table2_v1_Episodic Atlantic Water Inflow Into the Independence Fjord System (Eastern North Greenland) During the Holocene and Last Glacial Period.XLSX |
title_short |
Table2_v1_Episodic Atlantic Water Inflow Into the Independence Fjord System (Eastern North Greenland) During the Holocene and Last Glacial Period.XLSX |
title_full |
Table2_v1_Episodic Atlantic Water Inflow Into the Independence Fjord System (Eastern North Greenland) During the Holocene and Last Glacial Period.XLSX |
title_fullStr |
Table2_v1_Episodic Atlantic Water Inflow Into the Independence Fjord System (Eastern North Greenland) During the Holocene and Last Glacial Period.XLSX |
title_full_unstemmed |
Table2_v1_Episodic Atlantic Water Inflow Into the Independence Fjord System (Eastern North Greenland) During the Holocene and Last Glacial Period.XLSX |
title_sort |
table2_v1_episodic atlantic water inflow into the independence fjord system (eastern north greenland) during the holocene and last glacial period.xlsx |
publishDate |
2020 |
url |
https://doi.org/10.3389/feart.2020.565670.s002 https://figshare.com/articles/dataset/Table2_v1_Episodic_Atlantic_Water_Inflow_Into_the_Independence_Fjord_System_Eastern_North_Greenland_During_the_Holocene_and_Last_Glacial_Period_XLSX/12956333 |
long_lat |
ENVELOPE(-64.000,-64.000,-65.083,-65.083) ENVELOPE(-28.000,-28.000,82.133,82.133) |
geographic |
Arctic Greenland Wandel Independence Fjord |
geographic_facet |
Arctic Greenland Wandel Independence Fjord |
genre |
Arctic Climate change Foraminifera* Greenland Ice Sheet Independence fjord North Greenland Wandel Sea |
genre_facet |
Arctic Climate change Foraminifera* Greenland Ice Sheet Independence fjord North Greenland Wandel Sea |
op_relation |
doi:10.3389/feart.2020.565670.s002 https://figshare.com/articles/dataset/Table2_v1_Episodic_Atlantic_Water_Inflow_Into_the_Independence_Fjord_System_Eastern_North_Greenland_During_the_Holocene_and_Last_Glacial_Period_XLSX/12956333 |
op_doi |
https://doi.org/10.3389/feart.2020.565670.s002 |
_version_ |
1766349420115263488 |