Plio-Pleistocene scanning XRF, stable isotope, and environmental magnetic data from ODP Site 967
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| Autores principales: | , , , , , , , , , , , , , , , |
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| Formato: | Dataset Open Access |
| Lenguaje: | en |
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PANGAEA
2022
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| _version_ | 1867168575176835072 |
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| author | Grant, Katharine M Amarathunga, Udara Amies, Jessica Hu, Pengxiang Qian, Yao Penny, Tiah Rodriguez-Sanz, Laura Zhao, Xiang Heslop, David Liebrand, Diederik Hennekam, Rick Westerhold, Thomas Gilmore, Stewart Lourens, Lucas Joost Roberts, Andrew Rohling, Eelco J |
| author_facet | Grant, Katharine M Amarathunga, Udara Amies, Jessica Hu, Pengxiang Qian, Yao Penny, Tiah Rodriguez-Sanz, Laura Zhao, Xiang Heslop, David Liebrand, Diederik Hennekam, Rick Westerhold, Thomas Gilmore, Stewart Lourens, Lucas Joost Roberts, Andrew Rohling, Eelco J |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Mediterranean sediments record past changes in North African aridity/humidity changes (so-called 'Green Sahara periods') on orbital timescales. These changes are reflected in the alternating accumulation of organic carbon-rich and aeolian dust enriched sediments, and negative stable oxygen isotope excursions. Here we document these changes over the past 5 million years using scanning x-ray fluorescence (XRF) of ODP Site 967 sediments, measured with a 3rd generation Avaatech XRF core scanner. Element counts were converted into element concentrations for Al [ppm], Si [ppm], S [ppm], K [ppm], Ca [ppm], Ti [ppm], Fe [ppm], Sr [ppm], Zr [ppm] and Ba [ppm], based on a multivariate log-ratio calibration. Stable carbon and oxygen isotope data of the surface-dwelling planktonic foraminifer Globigerinoides ruber (white), sensu stricto at high sampling resolution (typically every 1-3 cm downcore) were measured using a Thermo Fisher Scientific Delta Advantage mass spectrometer coupled to a Kiel IV carbonate device. A bulk sediment isothermal remanence magnetism record (“IRM900@120mT”) was measured using a 2-G Enterprises cryogenic magnetometer. The IRM900@120mT proxy represents isothermal remanence magnetism after imparting a 900 mT induction in a direct current field, followed by alternating field (AF) demagnetization in a peak 120 mT field at high sampling resolution (every 1 cm downcore). |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_939929 |
| institution | PANGAEA |
| language | en |
| publishDate | 2022 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Plio-Pleistocene scanning XRF, stable isotope, and environmental magnetic data from ODP Site 967 Grant, Katharine M Amarathunga, Udara Amies, Jessica Hu, Pengxiang Qian, Yao Penny, Tiah Rodriguez-Sanz, Laura Zhao, Xiang Heslop, David Liebrand, Diederik Hennekam, Rick Westerhold, Thomas Gilmore, Stewart Lourens, Lucas Joost Roberts, Andrew Rohling, Eelco J 160-967; Africa; COMPCORE; Composite Core; dust; Eastern Basin; Green Sahara Period; Joides Resolution; Leg160; Mediterranean; Ocean Drilling Program; ODP; Pleistocene; Pliocene; sapropel Mediterranean sediments record past changes in North African aridity/humidity changes (so-called 'Green Sahara periods') on orbital timescales. These changes are reflected in the alternating accumulation of organic carbon-rich and aeolian dust enriched sediments, and negative stable oxygen isotope excursions. Here we document these changes over the past 5 million years using scanning x-ray fluorescence (XRF) of ODP Site 967 sediments, measured with a 3rd generation Avaatech XRF core scanner. Element counts were converted into element concentrations for Al [ppm], Si [ppm], S [ppm], K [ppm], Ca [ppm], Ti [ppm], Fe [ppm], Sr [ppm], Zr [ppm] and Ba [ppm], based on a multivariate log-ratio calibration. Stable carbon and oxygen isotope data of the surface-dwelling planktonic foraminifer Globigerinoides ruber (white), sensu stricto at high sampling resolution (typically every 1-3 cm downcore) were measured using a Thermo Fisher Scientific Delta Advantage mass spectrometer coupled to a Kiel IV carbonate device. A bulk sediment isothermal remanence magnetism record (“IRM900@120mT”) was measured using a 2-G Enterprises cryogenic magnetometer. The IRM900@120mT proxy represents isothermal remanence magnetism after imparting a 900 mT induction in a direct current field, followed by alternating field (AF) demagnetization in a peak 120 mT field at high sampling resolution (every 1 cm downcore). |
| title | Plio-Pleistocene scanning XRF, stable isotope, and environmental magnetic data from ODP Site 967 |
| topic | 160-967; Africa; COMPCORE; Composite Core; dust; Eastern Basin; Green Sahara Period; Joides Resolution; Leg160; Mediterranean; Ocean Drilling Program; ODP; Pleistocene; Pliocene; sapropel |
| url | https://doi.org/10.1594/PANGAEA.939929 |