Paleogene record of elemental concentrations in sediments from the Arctic Ocean obtained by XRF analyses
We present a high-resolution X-ray fluorescence (XRF) core scanner record for the expanded middle Eocene section from Integrated Ocean Drilling Program (IODP) Expedition 302 (ACEX) drilled on the Lomonosov Ridge, central Arctic Ocean. The division of the middle Eocene into two units (subunit 1/6 and...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.695311 2023-05-15T14:25:16+02:00 Paleogene record of elemental concentrations in sediments from the Arctic Ocean obtained by XRF analyses Spofforth, David J A Pälike, Heiko Green, Darryl R H MEDIAN LATITUDE: 87.893880 * MEDIAN LONGITUDE: 137.771180 * SOUTH-BOUND LATITUDE: 87.866580 * WEST-BOUND LONGITUDE: 136.177350 * NORTH-BOUND LATITUDE: 87.921180 * EAST-BOUND LONGITUDE: 139.365010 * DATE/TIME START: 2004-08-19T00:00:00 * DATE/TIME END: 2004-08-27T00:00:00 2008-06-03 application/zip, 4 datasets https://doi.pangaea.de/10.1594/PANGAEA.695311 https://doi.org/10.1594/PANGAEA.695311 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.695311 https://doi.org/10.1594/PANGAEA.695311 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Spofforth, David J A; Pälike, Heiko; Green, Darryl R H (2008): Paleogene record of elemental concentrations in sediments from the Arctic Ocean obtained by XRF analyses. Paleoceanography, 23(1), PA1S09, https://doi.org/10.1029/2007PA001489 302-M0002A 302-M0004A ACEX-M2A ACEX-M4A Arctic Coring Expedition ACEX Arctic Ocean Exp302 Integrated Ocean Drilling Program / International Ocean Discovery Program IODP Vidar Viking Dataset 2008 ftpangaea https://doi.org/10.1594/PANGAEA.695311 https://doi.org/10.1029/2007PA001489 2023-01-20T07:31:11Z We present a high-resolution X-ray fluorescence (XRF) core scanner record for the expanded middle Eocene section from Integrated Ocean Drilling Program (IODP) Expedition 302 (ACEX) drilled on the Lomonosov Ridge, central Arctic Ocean. The division of the middle Eocene into two units (subunit 1/6 and unit 2) is seen in the cyclical behavior of the elements as well as the changing interelemental correlations and their relationship to physical property measurements of bulk sediment. Al, Ti, and K strongly correlate throughout the record, while the behavior of Fe, Mn, and Si is more complex. Utilizing sediment geochemistry calibration to ground truth the XRF data, we suggest the middle Eocene Arctic Ocean was predominately euxinic, although periodic oxygenation of bottom waters must have occurred during unit 2 (49.7–45.4 Ma). Initially, the sediments are rich in biogenic silica (unit 2), but there is a pronounced shift to terrigenous dominated sediment accumulation in subunit 1/6. We report changes in the elemental concentrations of these elements and investigate the relationship between Fe content and pyrite. Additionally, we explore the potential change in paleoenvironmental conditions across the unit boundary. Dataset Arctic Arctic Arctic Ocean Lomonosov Ridge PANGAEA - Data Publisher for Earth & Environmental Science Arctic Arctic Ocean ENVELOPE(136.177350,139.365010,87.921180,87.866580) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
302-M0002A 302-M0004A ACEX-M2A ACEX-M4A Arctic Coring Expedition ACEX Arctic Ocean Exp302 Integrated Ocean Drilling Program / International Ocean Discovery Program IODP Vidar Viking |
spellingShingle |
302-M0002A 302-M0004A ACEX-M2A ACEX-M4A Arctic Coring Expedition ACEX Arctic Ocean Exp302 Integrated Ocean Drilling Program / International Ocean Discovery Program IODP Vidar Viking Spofforth, David J A Pälike, Heiko Green, Darryl R H Paleogene record of elemental concentrations in sediments from the Arctic Ocean obtained by XRF analyses |
topic_facet |
302-M0002A 302-M0004A ACEX-M2A ACEX-M4A Arctic Coring Expedition ACEX Arctic Ocean Exp302 Integrated Ocean Drilling Program / International Ocean Discovery Program IODP Vidar Viking |
description |
We present a high-resolution X-ray fluorescence (XRF) core scanner record for the expanded middle Eocene section from Integrated Ocean Drilling Program (IODP) Expedition 302 (ACEX) drilled on the Lomonosov Ridge, central Arctic Ocean. The division of the middle Eocene into two units (subunit 1/6 and unit 2) is seen in the cyclical behavior of the elements as well as the changing interelemental correlations and their relationship to physical property measurements of bulk sediment. Al, Ti, and K strongly correlate throughout the record, while the behavior of Fe, Mn, and Si is more complex. Utilizing sediment geochemistry calibration to ground truth the XRF data, we suggest the middle Eocene Arctic Ocean was predominately euxinic, although periodic oxygenation of bottom waters must have occurred during unit 2 (49.7–45.4 Ma). Initially, the sediments are rich in biogenic silica (unit 2), but there is a pronounced shift to terrigenous dominated sediment accumulation in subunit 1/6. We report changes in the elemental concentrations of these elements and investigate the relationship between Fe content and pyrite. Additionally, we explore the potential change in paleoenvironmental conditions across the unit boundary. |
format |
Dataset |
author |
Spofforth, David J A Pälike, Heiko Green, Darryl R H |
author_facet |
Spofforth, David J A Pälike, Heiko Green, Darryl R H |
author_sort |
Spofforth, David J A |
title |
Paleogene record of elemental concentrations in sediments from the Arctic Ocean obtained by XRF analyses |
title_short |
Paleogene record of elemental concentrations in sediments from the Arctic Ocean obtained by XRF analyses |
title_full |
Paleogene record of elemental concentrations in sediments from the Arctic Ocean obtained by XRF analyses |
title_fullStr |
Paleogene record of elemental concentrations in sediments from the Arctic Ocean obtained by XRF analyses |
title_full_unstemmed |
Paleogene record of elemental concentrations in sediments from the Arctic Ocean obtained by XRF analyses |
title_sort |
paleogene record of elemental concentrations in sediments from the arctic ocean obtained by xrf analyses |
publisher |
PANGAEA |
publishDate |
2008 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.695311 https://doi.org/10.1594/PANGAEA.695311 |
op_coverage |
MEDIAN LATITUDE: 87.893880 * MEDIAN LONGITUDE: 137.771180 * SOUTH-BOUND LATITUDE: 87.866580 * WEST-BOUND LONGITUDE: 136.177350 * NORTH-BOUND LATITUDE: 87.921180 * EAST-BOUND LONGITUDE: 139.365010 * DATE/TIME START: 2004-08-19T00:00:00 * DATE/TIME END: 2004-08-27T00:00:00 |
long_lat |
ENVELOPE(136.177350,139.365010,87.921180,87.866580) |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Arctic Ocean Lomonosov Ridge |
genre_facet |
Arctic Arctic Arctic Ocean Lomonosov Ridge |
op_source |
Supplement to: Spofforth, David J A; Pälike, Heiko; Green, Darryl R H (2008): Paleogene record of elemental concentrations in sediments from the Arctic Ocean obtained by XRF analyses. Paleoceanography, 23(1), PA1S09, https://doi.org/10.1029/2007PA001489 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.695311 https://doi.org/10.1594/PANGAEA.695311 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.695311 https://doi.org/10.1029/2007PA001489 |
_version_ |
1766297693491036160 |