Reconstructing past upwelling intensity and the seasonal dynamics of primary productivity along the Peruvian coastline from mollusk shell stable isotopes
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Sadler, James; Carre, Matthieu; Azzoug, Moufok; Schauer, Andrew J.; Ledesma, Jesus; Cardenas, Fredy; Chase, B M; Bentaleb, Ilhem; Muller, Serge D.; Mandeng, Magloire; Rohling, Eelco; Sachs, Julian
Description
We present here a potential new method to evaluate past variations of the mean intensity of Peruvian coastal upwelling and of the seasonal timing of phytoplankton blooms. This method uses a combination of the monthly carbon and oxygen isotopic signals preserved in fossil mollusk shells, and a series of corrections to extract the variations of the dissolved inorganic carbon (DIC) δ 13C. Based on the analysis of five shell samples (85 shells in total) from the southern Peruvian coast, we suggest...[Show more]
Collections | ANU Research Publications |
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Date published: | 2012 |
Type: | Journal article |
URI: | http://hdl.handle.net/1885/78020 |
Source: | Geochemistry, Geophysics, Geosystems. G3 |
DOI: | 10.1029/2011GC003595 |
Access Rights: | Open Access |
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File | Description | Size | Format | Image |
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01_Sadler_Reconstructing_past_upwelling_2012.pdf | 3.79 MB | Adobe PDF |
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