Measurements of sediment core MD00-2361, ODP Hole 122-762B as well as land-based samples
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| Main Authors: | , , , , , , , |
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| Format: | Dataset Open Access |
| Language: | en |
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PANGAEA
2018
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| _version_ | 1867167676147695616 |
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| author | Stuut, Jan-Berend W De Deckker, Patrick Saavedra-Pellitero, Mariem Bassinot, Franck C Drury, Anna Joy Walczak, Maureen H Nagashima, Kana Murayama, Masafumi |
| author_facet | Stuut, Jan-Berend W De Deckker, Patrick Saavedra-Pellitero, Mariem Bassinot, Franck C Drury, Anna Joy Walczak, Maureen H Nagashima, Kana Murayama, Masafumi |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | New proxy records from deep‐sea sediment cores from the northwestern continental margin of Western Australian reveal a 5.3 million‐year (Ma) history of aridity and tropical‐monsoon activity in northwestern Australia. Following the warm and dry early Pliocene (~5.3 Ma), the northwestern Australian continent experienced a gradual increase in humidity peaking at about 3.8 Ma with higher than present‐day rainfall. Between 3.8 and about 2.8 Ma, climate became progressively more arid with more rainfall variability. Coinciding with the onset of the northern hemisphere glaciations and the intensification of the northern hemisphere monsoon, aridity continued to increase overall from 2.8 Ma until today, with greater variance in precipitation and an increased frequency of large rainfall events. We associate the observed large‐scale fluctuations in Australian aridity with variations in Indian Ocean sea‐surface temperatures (SST), which largely control the monsoonal precipitation in northwestern Australia. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_890879 |
| institution | PANGAEA |
| language | en |
| publishDate | 2018 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Measurements of sediment core MD00-2361, ODP Hole 122-762B as well as land-based samples Stuut, Jan-Berend W De Deckker, Patrick Saavedra-Pellitero, Mariem Bassinot, Franck C Drury, Anna Joy Walczak, Maureen H Nagashima, Kana Murayama, Masafumi Center for Marine Environmental Sciences; MARUM; NIOZ_UU; NIOZ Royal Netherlands Institute for Sea Research, and Utrecht University; Ocean Drilling Program; ODP New proxy records from deep‐sea sediment cores from the northwestern continental margin of Western Australian reveal a 5.3 million‐year (Ma) history of aridity and tropical‐monsoon activity in northwestern Australia. Following the warm and dry early Pliocene (~5.3 Ma), the northwestern Australian continent experienced a gradual increase in humidity peaking at about 3.8 Ma with higher than present‐day rainfall. Between 3.8 and about 2.8 Ma, climate became progressively more arid with more rainfall variability. Coinciding with the onset of the northern hemisphere glaciations and the intensification of the northern hemisphere monsoon, aridity continued to increase overall from 2.8 Ma until today, with greater variance in precipitation and an increased frequency of large rainfall events. We associate the observed large‐scale fluctuations in Australian aridity with variations in Indian Ocean sea‐surface temperatures (SST), which largely control the monsoonal precipitation in northwestern Australia. |
| title | Measurements of sediment core MD00-2361, ODP Hole 122-762B as well as land-based samples |
| topic | Center for Marine Environmental Sciences; MARUM; NIOZ_UU; NIOZ Royal Netherlands Institute for Sea Research, and Utrecht University; Ocean Drilling Program; ODP |
| url | https://doi.org/10.1594/PANGAEA.890879 |