Ti/Ca ratios from XRF core scanning of sediment core M125-55-7
Precipitation extremes with devastating socioeconomic consequences within the South American Monsoon System (SAMS) are expected to become more frequent in the near future. The complexity in SAMS behaviour, however, poses severe challenges for reliable future projections. Thus, robust paleo-monsoon r...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.914302 2024-09-15T18:36:28+00:00 Ti/Ca ratios from XRF core scanning of sediment core M125-55-7 Hou, Alicia Meng Xiao LATITUDE: -20.363500 * LONGITUDE: -38.623200 * DATE/TIME START: 2016-03-31T19:46:00 * DATE/TIME END: 2016-03-31T19:46:00 * MINIMUM DEPTH, sediment/rock: 0.300 m * MAXIMUM DEPTH, sediment/rock: 11.920 m 2020 text/tab-separated-values, 6894 data points https://doi.pangaea.de/10.1594/PANGAEA.914302 https://doi.org/10.1594/PANGAEA.914302 en eng PANGAEA Hou, Alicia Meng Xiao; Bahr, André; Raddatz, Jacek; Voigt, Silke; Greule, Markus; Albuquerque, Ana Luiza Spadano; Chiessi, Cristiano Mazur; Friedrich, Oliver (2020): Insolation and Greenhouse Gas Forcing of the South American Monsoon System Across Three Glacial‐Interglacial Cycles. Geophysical Research Letters, 47(14), https://doi.org/10.1029/2020GL087948 https://doi.pangaea.de/10.1594/PANGAEA.914302 https://doi.org/10.1594/PANGAEA.914302 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess AGE Calcium element intensities normalized Calculated DEPTH sediment/rock ln-Titanium/Calcium ratio M125 M125_445-7 M125-55-7 Meteor (1986) PC Piston corer SAMBA South Atlantic Ocean Titanium X-ray fluorescence core scanner (XRF) dataset 2020 ftpangaea https://doi.org/10.1594/PANGAEA.91430210.1029/2020GL087948 2024-07-24T02:31:34Z Precipitation extremes with devastating socioeconomic consequences within the South American Monsoon System (SAMS) are expected to become more frequent in the near future. The complexity in SAMS behaviour, however, poses severe challenges for reliable future projections. Thus, robust paleo-monsoon records are needed to constrain the high spatiotemporal variability in the response of SAMS rainfall to different climatic drivers. This study uses Ti/Ca ratios from X-ray fluorescence scanning of a sediment core retrieved off eastern Brazilian to trace precipitation changes over the past 322 kyr. The results indicate that despite the spatiotemporal complexity of the SAMS, insolation-forcing is the primary pacemaker of variations in the monsoonal system. Additional modulation by atmospheric pCO2 suggests that SAMS intensity over eastern Brazil will be suppressed by rising CO2 emissions in the future. Lastly, our record reveals an unprecedented strong and persistent wet period during Marine Isotope Stage 6 driven by anomalously strong trade winds. Dataset South Atlantic Ocean PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-38.623200,-38.623200,-20.363500,-20.363500) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
AGE Calcium element intensities normalized Calculated DEPTH sediment/rock ln-Titanium/Calcium ratio M125 M125_445-7 M125-55-7 Meteor (1986) PC Piston corer SAMBA South Atlantic Ocean Titanium X-ray fluorescence core scanner (XRF) |
spellingShingle |
AGE Calcium element intensities normalized Calculated DEPTH sediment/rock ln-Titanium/Calcium ratio M125 M125_445-7 M125-55-7 Meteor (1986) PC Piston corer SAMBA South Atlantic Ocean Titanium X-ray fluorescence core scanner (XRF) Hou, Alicia Meng Xiao Ti/Ca ratios from XRF core scanning of sediment core M125-55-7 |
topic_facet |
AGE Calcium element intensities normalized Calculated DEPTH sediment/rock ln-Titanium/Calcium ratio M125 M125_445-7 M125-55-7 Meteor (1986) PC Piston corer SAMBA South Atlantic Ocean Titanium X-ray fluorescence core scanner (XRF) |
description |
Precipitation extremes with devastating socioeconomic consequences within the South American Monsoon System (SAMS) are expected to become more frequent in the near future. The complexity in SAMS behaviour, however, poses severe challenges for reliable future projections. Thus, robust paleo-monsoon records are needed to constrain the high spatiotemporal variability in the response of SAMS rainfall to different climatic drivers. This study uses Ti/Ca ratios from X-ray fluorescence scanning of a sediment core retrieved off eastern Brazilian to trace precipitation changes over the past 322 kyr. The results indicate that despite the spatiotemporal complexity of the SAMS, insolation-forcing is the primary pacemaker of variations in the monsoonal system. Additional modulation by atmospheric pCO2 suggests that SAMS intensity over eastern Brazil will be suppressed by rising CO2 emissions in the future. Lastly, our record reveals an unprecedented strong and persistent wet period during Marine Isotope Stage 6 driven by anomalously strong trade winds. |
format |
Dataset |
author |
Hou, Alicia Meng Xiao |
author_facet |
Hou, Alicia Meng Xiao |
author_sort |
Hou, Alicia Meng Xiao |
title |
Ti/Ca ratios from XRF core scanning of sediment core M125-55-7 |
title_short |
Ti/Ca ratios from XRF core scanning of sediment core M125-55-7 |
title_full |
Ti/Ca ratios from XRF core scanning of sediment core M125-55-7 |
title_fullStr |
Ti/Ca ratios from XRF core scanning of sediment core M125-55-7 |
title_full_unstemmed |
Ti/Ca ratios from XRF core scanning of sediment core M125-55-7 |
title_sort |
ti/ca ratios from xrf core scanning of sediment core m125-55-7 |
publisher |
PANGAEA |
publishDate |
2020 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.914302 https://doi.org/10.1594/PANGAEA.914302 |
op_coverage |
LATITUDE: -20.363500 * LONGITUDE: -38.623200 * DATE/TIME START: 2016-03-31T19:46:00 * DATE/TIME END: 2016-03-31T19:46:00 * MINIMUM DEPTH, sediment/rock: 0.300 m * MAXIMUM DEPTH, sediment/rock: 11.920 m |
long_lat |
ENVELOPE(-38.623200,-38.623200,-20.363500,-20.363500) |
genre |
South Atlantic Ocean |
genre_facet |
South Atlantic Ocean |
op_relation |
Hou, Alicia Meng Xiao; Bahr, André; Raddatz, Jacek; Voigt, Silke; Greule, Markus; Albuquerque, Ana Luiza Spadano; Chiessi, Cristiano Mazur; Friedrich, Oliver (2020): Insolation and Greenhouse Gas Forcing of the South American Monsoon System Across Three Glacial‐Interglacial Cycles. Geophysical Research Letters, 47(14), https://doi.org/10.1029/2020GL087948 https://doi.pangaea.de/10.1594/PANGAEA.914302 https://doi.org/10.1594/PANGAEA.914302 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.91430210.1029/2020GL087948 |
_version_ |
1810480134178734080 |