(Table 1) Age determination of sediment core HLY0503-08JPC
Sediment core HLY0503-8JPC raised by the HOTRAX'05 expedition from the Mendeleev Ridge was analyzed for multiple lithological, paleontological, and stable-isotopic proxies to reconstruct paleoceanographic conditions in the western Arctic Ocean during the Late Quaternary. The core, extensively s...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.817629 2023-05-15T14:27:18+02:00 (Table 1) Age determination of sediment core HLY0503-08JPC Adler, Ruth E Polyak, Leonid Ortiz, Joseph D Kaufman, Darrell S Channell, James E T Xuan, Chuang Grottoli, Andréa G Sellén, Emma Crawford, Kevin Richard LATITUDE: 79.592750 * LONGITUDE: -172.501583 * DATE/TIME START: 2005-08-20T00:00:00 * DATE/TIME END: 2005-08-20T00:00:00 * MINIMUM DEPTH, sediment/rock: 0.005 m * MAXIMUM DEPTH, sediment/rock: 0.625 m 2009-08-06 text/tab-separated-values, 88 data points https://doi.pangaea.de/10.1594/PANGAEA.817629 https://doi.org/10.1594/PANGAEA.817629 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.817629 https://doi.org/10.1594/PANGAEA.817629 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Adler, Ruth E; Polyak, Leonid; Ortiz, Joseph D; Kaufman, Darrell S; Channell, James E T; Xuan, Chuang; Grottoli, Andréa G; Sellén, Emma; Crawford, Kevin Richard (2009): Sediment record from the western Arctic Ocean with an improved Late Quaternary age resolution: HOTRAX core HLY0503-8JPC, Mendeleev Ridge. Global and Planetary Change, 68(1-2), 18-29, https://doi.org/10.1016/j.gloplacha.2009.03.026 Age 14C AMS 14C calibrated dated dated standard deviation Calendar age standard deviation Depth bottom/max sediment/rock top/min Healy Healy-Oden Trans Arctic Expedition 2005 (HOTRAX05) HLY0503 HLY0503-08JPC JPC Jumbo Piston Core Mendeleev Ridge Arctic Ocean Sample ID Dataset 2009 ftpangaea https://doi.org/10.1594/PANGAEA.817629 https://doi.org/10.1016/j.gloplacha.2009.03.026 2023-01-20T09:01:28Z Sediment core HLY0503-8JPC raised by the HOTRAX'05 expedition from the Mendeleev Ridge was analyzed for multiple lithological, paleontological, and stable-isotopic proxies to reconstruct paleoceanographic conditions in the western Arctic Ocean during the Late Quaternary. The core, extensively sampled in the upper 5 m, reveals pronounced changes in sedimentary environments during the ca. 250 kyr interval encompassing Marine Isotopic Stages (MIS) 1 to 7. An estimated average resolution of 500 yr/sample, at least for the last glacial cycle including the last interglacial, provides more detail than seen in other sedimentary records from the western Arctic Ocean. The age control is provided by 14C and amino acid racemization measurements on planktonic foraminifers and correlations with the stratigraphy developed for the central Lomonosov Ridge and with glacial events at the Eurasian Arctic margin. Cyclic variations in lithology combined with foraminiferal abundance and stable-isotopic composition indicate profound changes in hydrographic and depositional environments between interglacial-type and glacial-type periods apparently reflecting a combination of 100-kyr and precessional time scales. This periodicity is complicated by abrupt iceberg- and/or meltwater-discharge events with variable (Laurentide vs. Eurasian) provenance. The proxy record from the interval identified as the last interglacial (MIS 5e), which may aid in understanding the future state of the Arctic Ocean, indicates low ice conditions and possibly enhanced stratification of the water column. Dataset Arctic Arctic Arctic Ocean Foraminifera* Iceberg* Lomonosov Ridge PANGAEA - Data Publisher for Earth & Environmental Science Arctic Arctic Ocean ENVELOPE(-172.501583,-172.501583,79.592750,79.592750) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Age 14C AMS 14C calibrated dated dated standard deviation Calendar age standard deviation Depth bottom/max sediment/rock top/min Healy Healy-Oden Trans Arctic Expedition 2005 (HOTRAX05) HLY0503 HLY0503-08JPC JPC Jumbo Piston Core Mendeleev Ridge Arctic Ocean Sample ID |
spellingShingle |
Age 14C AMS 14C calibrated dated dated standard deviation Calendar age standard deviation Depth bottom/max sediment/rock top/min Healy Healy-Oden Trans Arctic Expedition 2005 (HOTRAX05) HLY0503 HLY0503-08JPC JPC Jumbo Piston Core Mendeleev Ridge Arctic Ocean Sample ID Adler, Ruth E Polyak, Leonid Ortiz, Joseph D Kaufman, Darrell S Channell, James E T Xuan, Chuang Grottoli, Andréa G Sellén, Emma Crawford, Kevin Richard (Table 1) Age determination of sediment core HLY0503-08JPC |
topic_facet |
Age 14C AMS 14C calibrated dated dated standard deviation Calendar age standard deviation Depth bottom/max sediment/rock top/min Healy Healy-Oden Trans Arctic Expedition 2005 (HOTRAX05) HLY0503 HLY0503-08JPC JPC Jumbo Piston Core Mendeleev Ridge Arctic Ocean Sample ID |
description |
Sediment core HLY0503-8JPC raised by the HOTRAX'05 expedition from the Mendeleev Ridge was analyzed for multiple lithological, paleontological, and stable-isotopic proxies to reconstruct paleoceanographic conditions in the western Arctic Ocean during the Late Quaternary. The core, extensively sampled in the upper 5 m, reveals pronounced changes in sedimentary environments during the ca. 250 kyr interval encompassing Marine Isotopic Stages (MIS) 1 to 7. An estimated average resolution of 500 yr/sample, at least for the last glacial cycle including the last interglacial, provides more detail than seen in other sedimentary records from the western Arctic Ocean. The age control is provided by 14C and amino acid racemization measurements on planktonic foraminifers and correlations with the stratigraphy developed for the central Lomonosov Ridge and with glacial events at the Eurasian Arctic margin. Cyclic variations in lithology combined with foraminiferal abundance and stable-isotopic composition indicate profound changes in hydrographic and depositional environments between interglacial-type and glacial-type periods apparently reflecting a combination of 100-kyr and precessional time scales. This periodicity is complicated by abrupt iceberg- and/or meltwater-discharge events with variable (Laurentide vs. Eurasian) provenance. The proxy record from the interval identified as the last interglacial (MIS 5e), which may aid in understanding the future state of the Arctic Ocean, indicates low ice conditions and possibly enhanced stratification of the water column. |
format |
Dataset |
author |
Adler, Ruth E Polyak, Leonid Ortiz, Joseph D Kaufman, Darrell S Channell, James E T Xuan, Chuang Grottoli, Andréa G Sellén, Emma Crawford, Kevin Richard |
author_facet |
Adler, Ruth E Polyak, Leonid Ortiz, Joseph D Kaufman, Darrell S Channell, James E T Xuan, Chuang Grottoli, Andréa G Sellén, Emma Crawford, Kevin Richard |
author_sort |
Adler, Ruth E |
title |
(Table 1) Age determination of sediment core HLY0503-08JPC |
title_short |
(Table 1) Age determination of sediment core HLY0503-08JPC |
title_full |
(Table 1) Age determination of sediment core HLY0503-08JPC |
title_fullStr |
(Table 1) Age determination of sediment core HLY0503-08JPC |
title_full_unstemmed |
(Table 1) Age determination of sediment core HLY0503-08JPC |
title_sort |
(table 1) age determination of sediment core hly0503-08jpc |
publisher |
PANGAEA |
publishDate |
2009 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.817629 https://doi.org/10.1594/PANGAEA.817629 |
op_coverage |
LATITUDE: 79.592750 * LONGITUDE: -172.501583 * DATE/TIME START: 2005-08-20T00:00:00 * DATE/TIME END: 2005-08-20T00:00:00 * MINIMUM DEPTH, sediment/rock: 0.005 m * MAXIMUM DEPTH, sediment/rock: 0.625 m |
long_lat |
ENVELOPE(-172.501583,-172.501583,79.592750,79.592750) |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Arctic Ocean Foraminifera* Iceberg* Lomonosov Ridge |
genre_facet |
Arctic Arctic Arctic Ocean Foraminifera* Iceberg* Lomonosov Ridge |
op_source |
Supplement to: Adler, Ruth E; Polyak, Leonid; Ortiz, Joseph D; Kaufman, Darrell S; Channell, James E T; Xuan, Chuang; Grottoli, Andréa G; Sellén, Emma; Crawford, Kevin Richard (2009): Sediment record from the western Arctic Ocean with an improved Late Quaternary age resolution: HOTRAX core HLY0503-8JPC, Mendeleev Ridge. Global and Planetary Change, 68(1-2), 18-29, https://doi.org/10.1016/j.gloplacha.2009.03.026 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.817629 https://doi.org/10.1594/PANGAEA.817629 |
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.817629 https://doi.org/10.1016/j.gloplacha.2009.03.026 |
_version_ |
1766300978973245440 |