Ar-Ar ages of iceberg-rafted debris from Scotia Sea IODP Site 382-U1538 ...
Ar-Ar ages of 58 individual hornblendes and micas picked from a discrete iceberg-rafted layer deposited ~1.2 Ma at IODP U1538. The layer was recovered 310.79–310.82 meters below sea floor in Hole U1538A-36X-3W. All hornblende and mica (mostly biotite) were handpicked from the 250-μm to 1-mm size fra...
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Online Access: | https://dx.doi.org/10.1594/pangaea.946719 https://doi.pangaea.de/10.1594/PANGAEA.946719 |
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ftdatacite:10.1594/pangaea.946719 2024-09-09T19:10:37+00:00 Ar-Ar ages of iceberg-rafted debris from Scotia Sea IODP Site 382-U1538 ... Bailey, Ian Hemming, Sidney R Reilly, Brendan T 2022 text/tab-separated-values https://dx.doi.org/10.1594/pangaea.946719 https://doi.pangaea.de/10.1594/PANGAEA.946719 en eng PANGAEA https://dx.doi.org/10.1029/2022pa004433 https://dx.doi.org/10.1126/science.1154339 https://dx.doi.org/10.1016/s0016-7037(99)00204-5 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 40Ar/39Ar geochronology Antarctic Ice Sheet Ar-Ar Iceberg Alley Ice Rafted Debris IODP IODP Expedition 382 Pirie Basin Scotia Sea Site U1538 Southern Ocean West Antarctic Ice Sheet Run Sample code/label Calcium/Potassium ratio Chlorine/Potassium ratio Argon-39 Argon-40, radiogenic Age, mineral Age, standard deviation Mineral name Comment Core drilling DSDP/ODP/IODP sample designation Laser fusion Exp328 Joides Resolution Integrated Ocean Drilling Program / International Ocean Discovery Program IODP dataset Dataset 2022 ftdatacite https://doi.org/10.1594/pangaea.94671910.1029/2022pa00443310.1126/science.115433910.1016/s0016-7037(99)00204-5 2024-06-17T09:04:49Z Ar-Ar ages of 58 individual hornblendes and micas picked from a discrete iceberg-rafted layer deposited ~1.2 Ma at IODP U1538. The layer was recovered 310.79–310.82 meters below sea floor in Hole U1538A-36X-3W. All hornblende and mica (mostly biotite) were handpicked from the 250-μm to 1-mm size fraction, with additional mica picked from the 63–250-μm size fraction. Hornblende, biotite and standards were irradiated at the Cd-lined in-core facility (CLICIT) at the Oregon State reactor. 40Ar/39Ar ages were obtained using single-step CO2 laser fusion at the Lamont Doherty Earth Observatory argon geochronology lab (AGES: Argon Geochronology for the Earth Sciences) to release argon, followed by cleanup with Zr-Ar getters heated at 2-amps. Extracted and cleaned gases were measured on a VG5400 noble gas mass spectrometer in peak hopping mode on an analogue multiplier, using the program Massspec. Nuclear interference corrections used values for OSU from Renne et al. (1998), and data were also corrected for ... Dataset Antarc* Antarctic Ice Sheet Iceberg* Scotia Sea Southern Ocean renne DataCite Antarctic Southern Ocean Scotia Sea West Antarctic Ice Sheet Renne ENVELOPE(9.698,9.698,63.505,63.505) Pirie ENVELOPE(-44.633,-44.633,-60.700,-60.700) |
institution |
Open Polar |
collection |
DataCite |
op_collection_id |
ftdatacite |
language |
English |
topic |
40Ar/39Ar geochronology Antarctic Ice Sheet Ar-Ar Iceberg Alley Ice Rafted Debris IODP IODP Expedition 382 Pirie Basin Scotia Sea Site U1538 Southern Ocean West Antarctic Ice Sheet Run Sample code/label Calcium/Potassium ratio Chlorine/Potassium ratio Argon-39 Argon-40, radiogenic Age, mineral Age, standard deviation Mineral name Comment Core drilling DSDP/ODP/IODP sample designation Laser fusion Exp328 Joides Resolution Integrated Ocean Drilling Program / International Ocean Discovery Program IODP |
spellingShingle |
40Ar/39Ar geochronology Antarctic Ice Sheet Ar-Ar Iceberg Alley Ice Rafted Debris IODP IODP Expedition 382 Pirie Basin Scotia Sea Site U1538 Southern Ocean West Antarctic Ice Sheet Run Sample code/label Calcium/Potassium ratio Chlorine/Potassium ratio Argon-39 Argon-40, radiogenic Age, mineral Age, standard deviation Mineral name Comment Core drilling DSDP/ODP/IODP sample designation Laser fusion Exp328 Joides Resolution Integrated Ocean Drilling Program / International Ocean Discovery Program IODP Bailey, Ian Hemming, Sidney R Reilly, Brendan T Ar-Ar ages of iceberg-rafted debris from Scotia Sea IODP Site 382-U1538 ... |
topic_facet |
40Ar/39Ar geochronology Antarctic Ice Sheet Ar-Ar Iceberg Alley Ice Rafted Debris IODP IODP Expedition 382 Pirie Basin Scotia Sea Site U1538 Southern Ocean West Antarctic Ice Sheet Run Sample code/label Calcium/Potassium ratio Chlorine/Potassium ratio Argon-39 Argon-40, radiogenic Age, mineral Age, standard deviation Mineral name Comment Core drilling DSDP/ODP/IODP sample designation Laser fusion Exp328 Joides Resolution Integrated Ocean Drilling Program / International Ocean Discovery Program IODP |
description |
Ar-Ar ages of 58 individual hornblendes and micas picked from a discrete iceberg-rafted layer deposited ~1.2 Ma at IODP U1538. The layer was recovered 310.79–310.82 meters below sea floor in Hole U1538A-36X-3W. All hornblende and mica (mostly biotite) were handpicked from the 250-μm to 1-mm size fraction, with additional mica picked from the 63–250-μm size fraction. Hornblende, biotite and standards were irradiated at the Cd-lined in-core facility (CLICIT) at the Oregon State reactor. 40Ar/39Ar ages were obtained using single-step CO2 laser fusion at the Lamont Doherty Earth Observatory argon geochronology lab (AGES: Argon Geochronology for the Earth Sciences) to release argon, followed by cleanup with Zr-Ar getters heated at 2-amps. Extracted and cleaned gases were measured on a VG5400 noble gas mass spectrometer in peak hopping mode on an analogue multiplier, using the program Massspec. Nuclear interference corrections used values for OSU from Renne et al. (1998), and data were also corrected for ... |
format |
Dataset |
author |
Bailey, Ian Hemming, Sidney R Reilly, Brendan T |
author_facet |
Bailey, Ian Hemming, Sidney R Reilly, Brendan T |
author_sort |
Bailey, Ian |
title |
Ar-Ar ages of iceberg-rafted debris from Scotia Sea IODP Site 382-U1538 ... |
title_short |
Ar-Ar ages of iceberg-rafted debris from Scotia Sea IODP Site 382-U1538 ... |
title_full |
Ar-Ar ages of iceberg-rafted debris from Scotia Sea IODP Site 382-U1538 ... |
title_fullStr |
Ar-Ar ages of iceberg-rafted debris from Scotia Sea IODP Site 382-U1538 ... |
title_full_unstemmed |
Ar-Ar ages of iceberg-rafted debris from Scotia Sea IODP Site 382-U1538 ... |
title_sort |
ar-ar ages of iceberg-rafted debris from scotia sea iodp site 382-u1538 ... |
publisher |
PANGAEA |
publishDate |
2022 |
url |
https://dx.doi.org/10.1594/pangaea.946719 https://doi.pangaea.de/10.1594/PANGAEA.946719 |
long_lat |
ENVELOPE(9.698,9.698,63.505,63.505) ENVELOPE(-44.633,-44.633,-60.700,-60.700) |
geographic |
Antarctic Southern Ocean Scotia Sea West Antarctic Ice Sheet Renne Pirie |
geographic_facet |
Antarctic Southern Ocean Scotia Sea West Antarctic Ice Sheet Renne Pirie |
genre |
Antarc* Antarctic Ice Sheet Iceberg* Scotia Sea Southern Ocean renne |
genre_facet |
Antarc* Antarctic Ice Sheet Iceberg* Scotia Sea Southern Ocean renne |
op_relation |
https://dx.doi.org/10.1029/2022pa004433 https://dx.doi.org/10.1126/science.1154339 https://dx.doi.org/10.1016/s0016-7037(99)00204-5 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_doi |
https://doi.org/10.1594/pangaea.94671910.1029/2022pa00443310.1126/science.115433910.1016/s0016-7037(99)00204-5 |
_version_ |
1809826169546080256 |