Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9462976 | Palaeogeography, Palaeoclimatology, Palaeoecology | 2005 | 17 Pages |
Abstract
A comparison of our data with published observations from another gyre of the Somalian upwelling area located at 5°N in the Somali gyre area shows differences regarding periods of upwelling activity and their geochemical imprint. Three hypotheses are proposed to explain these differences: (1) changes in the planktonic community, resulting in more silica-rich deposits in the Socotra gyre, and more carbonate-rich deposits in the Somali gyre, that are controlled by differences in the source water of the upwelling; (2) a more important terrigenous input in the southern gyre; and (3) a different location of the sites relative to the geographic distribution of the upwelling gyres and hydrologic fronts.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Earth-Surface Processes
Authors
Hélène Jacot Des Combes, Jean Pierre Caulet, Nicolas Tribovillard,