First Record of Oceanic Anoxic Event 1d at Southern High Latitudes: Sedimentary and Geochemical Evidence From International Ocean Discovery Program Expedition 369
Oceanic anoxic event 1d (OAE 1d) has been well studied at northern low latitudes (i.e., in Tethys and the North Atlantic); however, the paleoenvironmental response to this event at high latitudes has not been documented and the triggering mechanism remains unknown. Here, we address both of these sho...
Published in: | Geophysical Research Letters |
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Language: | English |
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Online Access: | http://ir.qdio.ac.cn/handle/337002/179248 http://ir.qdio.ac.cn/handle/337002/179249 https://doi.org/10.1029/2021GL097641 |
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ftchinacasciocas:oai:ir.qdio.ac.cn:337002/179249 2023-05-15T17:33:06+02:00 First Record of Oceanic Anoxic Event 1d at Southern High Latitudes: Sedimentary and Geochemical Evidence From International Ocean Discovery Program Expedition 369 Fan, Qingchao Xu, Zhaokai MacLeod, Kenneth G. Brumsack, Hans-Jurgen Li, Tiegang Chang, Fengming Wan, Shiming Riquier, Laurent Fu, Delong Luan, Zhendong Duan, Baichuan Chen, Hongjin Wang, Wei Lim, Dhongil 2022-05-28 http://ir.qdio.ac.cn/handle/337002/179248 http://ir.qdio.ac.cn/handle/337002/179249 https://doi.org/10.1029/2021GL097641 英语 eng AMER GEOPHYSICAL UNION GEOPHYSICAL RESEARCH LETTERS http://ir.qdio.ac.cn/handle/337002/179248 http://ir.qdio.ac.cn/handle/337002/179249 doi:10.1029/2021GL097641 International Ocean Discovery Program southern high latitudes oceanic anoxic event 1d volcanism paleoenvironmental changes Geology Geosciences Multidisciplinary 期刊论文 2022 ftchinacasciocas https://doi.org/10.1029/2021GL097641 2022-07-29T12:11:54Z Oceanic anoxic event 1d (OAE 1d) has been well studied at northern low latitudes (i.e., in Tethys and the North Atlantic); however, the paleoenvironmental response to this event at high latitudes has not been documented and the triggering mechanism remains unknown. Here, we address both of these shortcomings by presenting the first detailed sedimentary and multi-proxy geochemical record of the OAE 1d at southern high latitudes (60-62 degrees S), obtained from sediments using Site U1513, IODP Expedition 369. Biostratigraphic and chemostratigraphic data support correlation of the interval studied with OAE 1d, and the sedimentary mercury proxy reveals that at least at Site U1513, OAE 1d is associated with the Central Kerguelen large igneous province volcanism. Furthermore, the significant increase in continental runoff and consequent terrigenous input from southwestern Australia in the southeastern proto-India Ocean might have resulted in regionally weakened bottom-water oxygenation and strengthened organic matter burial during OAE 1d. Report North Atlantic Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR Kerguelen Geophysical Research Letters 49 10 |
institution |
Open Polar |
collection |
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR |
op_collection_id |
ftchinacasciocas |
language |
English |
topic |
International Ocean Discovery Program southern high latitudes oceanic anoxic event 1d volcanism paleoenvironmental changes Geology Geosciences Multidisciplinary |
spellingShingle |
International Ocean Discovery Program southern high latitudes oceanic anoxic event 1d volcanism paleoenvironmental changes Geology Geosciences Multidisciplinary Fan, Qingchao Xu, Zhaokai MacLeod, Kenneth G. Brumsack, Hans-Jurgen Li, Tiegang Chang, Fengming Wan, Shiming Riquier, Laurent Fu, Delong Luan, Zhendong Duan, Baichuan Chen, Hongjin Wang, Wei Lim, Dhongil First Record of Oceanic Anoxic Event 1d at Southern High Latitudes: Sedimentary and Geochemical Evidence From International Ocean Discovery Program Expedition 369 |
topic_facet |
International Ocean Discovery Program southern high latitudes oceanic anoxic event 1d volcanism paleoenvironmental changes Geology Geosciences Multidisciplinary |
description |
Oceanic anoxic event 1d (OAE 1d) has been well studied at northern low latitudes (i.e., in Tethys and the North Atlantic); however, the paleoenvironmental response to this event at high latitudes has not been documented and the triggering mechanism remains unknown. Here, we address both of these shortcomings by presenting the first detailed sedimentary and multi-proxy geochemical record of the OAE 1d at southern high latitudes (60-62 degrees S), obtained from sediments using Site U1513, IODP Expedition 369. Biostratigraphic and chemostratigraphic data support correlation of the interval studied with OAE 1d, and the sedimentary mercury proxy reveals that at least at Site U1513, OAE 1d is associated with the Central Kerguelen large igneous province volcanism. Furthermore, the significant increase in continental runoff and consequent terrigenous input from southwestern Australia in the southeastern proto-India Ocean might have resulted in regionally weakened bottom-water oxygenation and strengthened organic matter burial during OAE 1d. |
format |
Report |
author |
Fan, Qingchao Xu, Zhaokai MacLeod, Kenneth G. Brumsack, Hans-Jurgen Li, Tiegang Chang, Fengming Wan, Shiming Riquier, Laurent Fu, Delong Luan, Zhendong Duan, Baichuan Chen, Hongjin Wang, Wei Lim, Dhongil |
author_facet |
Fan, Qingchao Xu, Zhaokai MacLeod, Kenneth G. Brumsack, Hans-Jurgen Li, Tiegang Chang, Fengming Wan, Shiming Riquier, Laurent Fu, Delong Luan, Zhendong Duan, Baichuan Chen, Hongjin Wang, Wei Lim, Dhongil |
author_sort |
Fan, Qingchao |
title |
First Record of Oceanic Anoxic Event 1d at Southern High Latitudes: Sedimentary and Geochemical Evidence From International Ocean Discovery Program Expedition 369 |
title_short |
First Record of Oceanic Anoxic Event 1d at Southern High Latitudes: Sedimentary and Geochemical Evidence From International Ocean Discovery Program Expedition 369 |
title_full |
First Record of Oceanic Anoxic Event 1d at Southern High Latitudes: Sedimentary and Geochemical Evidence From International Ocean Discovery Program Expedition 369 |
title_fullStr |
First Record of Oceanic Anoxic Event 1d at Southern High Latitudes: Sedimentary and Geochemical Evidence From International Ocean Discovery Program Expedition 369 |
title_full_unstemmed |
First Record of Oceanic Anoxic Event 1d at Southern High Latitudes: Sedimentary and Geochemical Evidence From International Ocean Discovery Program Expedition 369 |
title_sort |
first record of oceanic anoxic event 1d at southern high latitudes: sedimentary and geochemical evidence from international ocean discovery program expedition 369 |
publisher |
AMER GEOPHYSICAL UNION |
publishDate |
2022 |
url |
http://ir.qdio.ac.cn/handle/337002/179248 http://ir.qdio.ac.cn/handle/337002/179249 https://doi.org/10.1029/2021GL097641 |
geographic |
Kerguelen |
geographic_facet |
Kerguelen |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
GEOPHYSICAL RESEARCH LETTERS http://ir.qdio.ac.cn/handle/337002/179248 http://ir.qdio.ac.cn/handle/337002/179249 doi:10.1029/2021GL097641 |
op_doi |
https://doi.org/10.1029/2021GL097641 |
container_title |
Geophysical Research Letters |
container_volume |
49 |
container_issue |
10 |
_version_ |
1766131500378488832 |