Neodymium and Strontium isotope compositions of Miocene to recent sediments collected at Site U1521 during International Ocean Discovery Programme (IODP) Expedition 374 to the Ross Sea, Antarctica
This dataset comprises neodymium (Nd) and strontium (Sr) isotope compositions measured on 72 sediment samples, from IODP Expedition 374 Site U1521 to the Ross Sea. These were collected on the RV JOIDES Resolution. Shipboard biostratigraphy and magnetostratigraphy suggests the samples are mainly earl...
Main Author: | |
---|---|
Format: | Dataset |
Language: | unknown |
Published: |
NERC EDS National Geoscience Data Centre
2021
|
Subjects: | |
Online Access: | https://dx.doi.org/10.5285/3a646c8a-8422-4079-a928-a159532439eb https://www2.bgs.ac.uk/nationalgeosciencedatacentre/citedData/catalogue/3a646c8a-8422-4079-a928-a159532439eb.html |
id |
ftdatacite:10.5285/3a646c8a-8422-4079-a928-a159532439eb |
---|---|
record_format |
openpolar |
spelling |
ftdatacite:10.5285/3a646c8a-8422-4079-a928-a159532439eb 2023-05-15T13:37:37+02:00 Neodymium and Strontium isotope compositions of Miocene to recent sediments collected at Site U1521 during International Ocean Discovery Programme (IODP) Expedition 374 to the Ross Sea, Antarctica Marschalek, James 2021 https://dx.doi.org/10.5285/3a646c8a-8422-4079-a928-a159532439eb https://www2.bgs.ac.uk/nationalgeosciencedatacentre/citedData/catalogue/3a646c8a-8422-4079-a928-a159532439eb.html unknown NERC EDS National Geoscience Data Centre sediment provenance Neodymium isotopes Strontium isotopes Antarctic Ice Sheets Early Miocene dataset Dataset 2021 ftdatacite https://doi.org/10.5285/3a646c8a-8422-4079-a928-a159532439eb 2021-11-05T12:55:41Z This dataset comprises neodymium (Nd) and strontium (Sr) isotope compositions measured on 72 sediment samples, from IODP Expedition 374 Site U1521 to the Ross Sea. These were collected on the RV JOIDES Resolution. Shipboard biostratigraphy and magnetostratigraphy suggests the samples are mainly early Miocene in age (McKay et al., 2019). The uppermost samples do, however, include younger Plio-Pleistocene sediments. Neodymium and Sr isotope analyses were conducted using a multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS) and a thermal ionisation mass spectrometer (TIMS), respectively, in the MAGIC laboratories at Imperial College London. Neodymium and Sr isotopes in sediments can be compared to measurements from terrestrial rock samples, allowing the changing provenance of the sediments to be traced. This dataset therefore provides information on how erosion by Antarctica’s ice sheets bordering the Ross Sea has changed over time. Neodymium isotopes are reported in the epsilon notation, which denotes the deviation in parts per 10,000 from the present-day composition of the Chondritic Uniform Reservoir (143Nd/144Nd = 0.512638) (Jacobsen and Wasserburg, 1980). Dataset Antarc* Antarctic Antarctica Ross Sea DataCite Metadata Store (German National Library of Science and Technology) Antarctic Ross Sea |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
sediment provenance Neodymium isotopes Strontium isotopes Antarctic Ice Sheets Early Miocene |
spellingShingle |
sediment provenance Neodymium isotopes Strontium isotopes Antarctic Ice Sheets Early Miocene Marschalek, James Neodymium and Strontium isotope compositions of Miocene to recent sediments collected at Site U1521 during International Ocean Discovery Programme (IODP) Expedition 374 to the Ross Sea, Antarctica |
topic_facet |
sediment provenance Neodymium isotopes Strontium isotopes Antarctic Ice Sheets Early Miocene |
description |
This dataset comprises neodymium (Nd) and strontium (Sr) isotope compositions measured on 72 sediment samples, from IODP Expedition 374 Site U1521 to the Ross Sea. These were collected on the RV JOIDES Resolution. Shipboard biostratigraphy and magnetostratigraphy suggests the samples are mainly early Miocene in age (McKay et al., 2019). The uppermost samples do, however, include younger Plio-Pleistocene sediments. Neodymium and Sr isotope analyses were conducted using a multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS) and a thermal ionisation mass spectrometer (TIMS), respectively, in the MAGIC laboratories at Imperial College London. Neodymium and Sr isotopes in sediments can be compared to measurements from terrestrial rock samples, allowing the changing provenance of the sediments to be traced. This dataset therefore provides information on how erosion by Antarctica’s ice sheets bordering the Ross Sea has changed over time. Neodymium isotopes are reported in the epsilon notation, which denotes the deviation in parts per 10,000 from the present-day composition of the Chondritic Uniform Reservoir (143Nd/144Nd = 0.512638) (Jacobsen and Wasserburg, 1980). |
format |
Dataset |
author |
Marschalek, James |
author_facet |
Marschalek, James |
author_sort |
Marschalek, James |
title |
Neodymium and Strontium isotope compositions of Miocene to recent sediments collected at Site U1521 during International Ocean Discovery Programme (IODP) Expedition 374 to the Ross Sea, Antarctica |
title_short |
Neodymium and Strontium isotope compositions of Miocene to recent sediments collected at Site U1521 during International Ocean Discovery Programme (IODP) Expedition 374 to the Ross Sea, Antarctica |
title_full |
Neodymium and Strontium isotope compositions of Miocene to recent sediments collected at Site U1521 during International Ocean Discovery Programme (IODP) Expedition 374 to the Ross Sea, Antarctica |
title_fullStr |
Neodymium and Strontium isotope compositions of Miocene to recent sediments collected at Site U1521 during International Ocean Discovery Programme (IODP) Expedition 374 to the Ross Sea, Antarctica |
title_full_unstemmed |
Neodymium and Strontium isotope compositions of Miocene to recent sediments collected at Site U1521 during International Ocean Discovery Programme (IODP) Expedition 374 to the Ross Sea, Antarctica |
title_sort |
neodymium and strontium isotope compositions of miocene to recent sediments collected at site u1521 during international ocean discovery programme (iodp) expedition 374 to the ross sea, antarctica |
publisher |
NERC EDS National Geoscience Data Centre |
publishDate |
2021 |
url |
https://dx.doi.org/10.5285/3a646c8a-8422-4079-a928-a159532439eb https://www2.bgs.ac.uk/nationalgeosciencedatacentre/citedData/catalogue/3a646c8a-8422-4079-a928-a159532439eb.html |
geographic |
Antarctic Ross Sea |
geographic_facet |
Antarctic Ross Sea |
genre |
Antarc* Antarctic Antarctica Ross Sea |
genre_facet |
Antarc* Antarctic Antarctica Ross Sea |
op_doi |
https://doi.org/10.5285/3a646c8a-8422-4079-a928-a159532439eb |
_version_ |
1766094768695148544 |