Reconstructing past upwelling intensity and the seasonal dynamics of primary productivity along the Peruvian coastline from mollusk shell stable isotopes
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|
|Source:||Geochemistry, Geophysics, Geosystems. G3|
|01_Sadler_Reconstructing_past_upwelling_2012.pdf||3.79 MB||Adobe PDF|
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