1200 years old, marine sediment data from Brazil
southeastern In the new study marine sediments from continental shelf Brazilian: A 1200 year record of upwelling productivity provide us Dezidério Souto et al. Sediment data from the Cabo Frio coastal shelf (-23.19 S -41.8 W, depth 117 m).
Thursday, January 6, 2011
Mount And Blade Femal Mod
What was done?
In this study, we examined foraminifera and organic markers in sediment cores to determine changes in ocean productivity over the last 1200 years. A box-core sediment sample collected from the continental shelf was analyzed (
Fig. 1
) for multiple proxy data, including: grain size, total organic carbon (TOC), carbon to nitrogen atomic ratio (C/N), organic palynomorphs and planktonic foraminifera. Data were then compared to paleoclimate and paleoceanographic records that have documented global climate extremes during the MCA and LIA, which were collected from the Peru upwelling region ( Gutiérrez et al., 2009)[1], the Cariaco basin (
) for multiple proxy data, including: grain size, total organic carbon (TOC), carbon to nitrogen atomic ratio (C/N), organic palynomorphs and planktonic foraminifera. Data were then compared to paleoclimate and paleoceanographic records that have documented global climate extremes during the MCA and LIA, which were collected from the Peru upwelling region ( Gutiérrez et al., 2009)[1], the Cariaco basin (
Haug et al., 2001)[2], the Andes glaciers sand (
Rabatel et al., 2008) [3] and is Surface Temperature (SST) in the Sargasso Sea ( ;
1).
1).
Gutiérrez et al. 2009 D. Gutiérrez, A. Sifeddine, DB Field, L. Ortlieb, G. Vargas, FP Chavez, F. Velazco, V. Ferreira, P. Tapia, R. Salvatteci, H. Boucher, MC Morales, J. Valdes, JL Reyss, A. Campusano, M. Boussafir, M. Mandeng-Yogo, M. Garcia and T. Baumgartner, Rapid reorganization into ocean biogeochemistry off Peru Towards the end of the Little Ice Age, Biogeosciences 6 (2009), pp. 835–848.Die Ergebnisse zusammenfassend aus dem Abstract:
[2] GH Haug, K.A. Hughen, D.M. Sigman, L.C. Peterson and U. Röhl, Southward migration of the Intertropical Convergence Zone through the Holocene,293Science
(2001), pp. 1304–1308.
[3] A. Rabatel, B. Francou, V. Jomelli, P. Naveau and D. Grancher, A chronology of the Little Ice Age in the tropical Andes of Bolivia (16°S) and its implications for climate reconstruction, Quaternary Research 70 (2008), pp. 198–212.
[4 ] O. van de Plassche, K. van der Borg and A.F.M. de Jong, Sea level–climate correlation during the past 1400 yr, Geology
26 (1998), pp. 319-322. 
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