Provenance of Lower Cretaceous sediments in the Wandel Sea Basin, North Greenland
Detrital zircons in Lower Cretaceous sedimentary formations from the Wandel Sea Basin (Kilen, Peary Land) were dated by U–Pb and analysed for Hf isotopes by laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). Samples from Kilen and Peary Land display a wide range of U–Pb ages, w...
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ftgeosoclonfig:oai:figshare.com:article/3454526 2023-05-15T16:27:16+02:00 Provenance of Lower Cretaceous sediments in the Wandel Sea Basin, North Greenland T.S. RØhr T. Andersen H. Dypvik 2016-06-21T12:11:09Z https://doi.org/10.6084/m9.figshare.3454526.v1 https://figshare.com/articles/Provenance_of_Lower_Cretaceous_sediments_in_the_Wandel_Sea_Basin_North_Greenland/3454526 unknown doi:10.6084/m9.figshare.3454526.v1 https://figshare.com/articles/Provenance_of_Lower_Cretaceous_sediments_in_the_Wandel_Sea_Basin_North_Greenland/3454526 CC BY 4.0 CC-BY Geology zircon populations crust components Peary Land age populations Hf isotopes Hf data North Greenland Detrital zircons Major hiati plasma mass spectrometry Neoarchaean zircon populations laser ablation inductively Wandel Sea Basin ϵ Hf values Peary Land display Cretaceous sediments 0.91 Ga Dataset 2016 ftgeosoclonfig https://doi.org/10.6084/m9.figshare.3454526.v1 2020-02-21T07:23:27Z Detrital zircons in Lower Cretaceous sedimentary formations from the Wandel Sea Basin (Kilen, Peary Land) were dated by U–Pb and analysed for Hf isotopes by laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). Samples from Kilen and Peary Land display a wide range of U–Pb ages, with significant zircon populations at 1.0–1.1 and 1.8–2.0 Ga. Major hiati occur between 2.1 and 2.4 and from 0.48 to 0.91 Ga. Low initial ϵ Hf values indicate that recycled crust components are significant in Caledonian-aged zircons, and in Palaeoproterozoic (1.8–2.0 Ga) and Neoarchaean zircon populations. Other U–Pb age populations in the studied samples are dominated by zircons with positive ϵ Hf values indicating a significant contribution of mantle-derived material in these periods. A narrow range of ϵ Hf values is commonly seen within a given U–Pb age population, and the values seen in the samples are in general correlated with the different age populations and their frequency. One exception is the 1.8–2.0 Ga population, where variations suggest variable sources. The U–Pb and Hf data are consistent with Greenland as the sole source of zircon from the studied sandstones. Dataset Greenland North Greenland Peary Land Wandel Sea Geological Society of London: Figshare Greenland Kilen ENVELOPE(6.586,6.586,62.571,62.571) Peary ENVELOPE(-63.867,-63.867,-65.250,-65.250) Peary Land ENVELOPE(-32.500,-32.500,82.633,82.633) Wandel ENVELOPE(-64.000,-64.000,-65.083,-65.083) |
institution |
Open Polar |
collection |
Geological Society of London: Figshare |
op_collection_id |
ftgeosoclonfig |
language |
unknown |
topic |
Geology zircon populations crust components Peary Land age populations Hf isotopes Hf data North Greenland Detrital zircons Major hiati plasma mass spectrometry Neoarchaean zircon populations laser ablation inductively Wandel Sea Basin ϵ Hf values Peary Land display Cretaceous sediments 0.91 Ga |
spellingShingle |
Geology zircon populations crust components Peary Land age populations Hf isotopes Hf data North Greenland Detrital zircons Major hiati plasma mass spectrometry Neoarchaean zircon populations laser ablation inductively Wandel Sea Basin ϵ Hf values Peary Land display Cretaceous sediments 0.91 Ga T.S. RØhr T. Andersen H. Dypvik Provenance of Lower Cretaceous sediments in the Wandel Sea Basin, North Greenland |
topic_facet |
Geology zircon populations crust components Peary Land age populations Hf isotopes Hf data North Greenland Detrital zircons Major hiati plasma mass spectrometry Neoarchaean zircon populations laser ablation inductively Wandel Sea Basin ϵ Hf values Peary Land display Cretaceous sediments 0.91 Ga |
description |
Detrital zircons in Lower Cretaceous sedimentary formations from the Wandel Sea Basin (Kilen, Peary Land) were dated by U–Pb and analysed for Hf isotopes by laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). Samples from Kilen and Peary Land display a wide range of U–Pb ages, with significant zircon populations at 1.0–1.1 and 1.8–2.0 Ga. Major hiati occur between 2.1 and 2.4 and from 0.48 to 0.91 Ga. Low initial ϵ Hf values indicate that recycled crust components are significant in Caledonian-aged zircons, and in Palaeoproterozoic (1.8–2.0 Ga) and Neoarchaean zircon populations. Other U–Pb age populations in the studied samples are dominated by zircons with positive ϵ Hf values indicating a significant contribution of mantle-derived material in these periods. A narrow range of ϵ Hf values is commonly seen within a given U–Pb age population, and the values seen in the samples are in general correlated with the different age populations and their frequency. One exception is the 1.8–2.0 Ga population, where variations suggest variable sources. The U–Pb and Hf data are consistent with Greenland as the sole source of zircon from the studied sandstones. |
format |
Dataset |
author |
T.S. RØhr T. Andersen H. Dypvik |
author_facet |
T.S. RØhr T. Andersen H. Dypvik |
author_sort |
T.S. RØhr |
title |
Provenance of Lower Cretaceous sediments in the Wandel Sea Basin, North Greenland |
title_short |
Provenance of Lower Cretaceous sediments in the Wandel Sea Basin, North Greenland |
title_full |
Provenance of Lower Cretaceous sediments in the Wandel Sea Basin, North Greenland |
title_fullStr |
Provenance of Lower Cretaceous sediments in the Wandel Sea Basin, North Greenland |
title_full_unstemmed |
Provenance of Lower Cretaceous sediments in the Wandel Sea Basin, North Greenland |
title_sort |
provenance of lower cretaceous sediments in the wandel sea basin, north greenland |
publishDate |
2016 |
url |
https://doi.org/10.6084/m9.figshare.3454526.v1 https://figshare.com/articles/Provenance_of_Lower_Cretaceous_sediments_in_the_Wandel_Sea_Basin_North_Greenland/3454526 |
long_lat |
ENVELOPE(6.586,6.586,62.571,62.571) ENVELOPE(-63.867,-63.867,-65.250,-65.250) ENVELOPE(-32.500,-32.500,82.633,82.633) ENVELOPE(-64.000,-64.000,-65.083,-65.083) |
geographic |
Greenland Kilen Peary Peary Land Wandel |
geographic_facet |
Greenland Kilen Peary Peary Land Wandel |
genre |
Greenland North Greenland Peary Land Wandel Sea |
genre_facet |
Greenland North Greenland Peary Land Wandel Sea |
op_relation |
doi:10.6084/m9.figshare.3454526.v1 https://figshare.com/articles/Provenance_of_Lower_Cretaceous_sediments_in_the_Wandel_Sea_Basin_North_Greenland/3454526 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.3454526.v1 |
_version_ |
1766016393109569536 |