Environmental and climatic evolution of the Amazon River and the Brazilian northern margin using clay minerals

• Grant number: 12/18304-3
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• Start date: August 01, 2013
• End date: October 19, 2014
• Field of knowledge: Physical Sciences and Mathematics - Oceanography - Geological Oceanography
• Principal Investigator: Luigi Jovane
• Grantee: Francesco Iacoviello
• Host Institution: Instituto Oceanográfico (IO). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Associated research grant: 11/22018-3 - Primary productivity in oceans studying magnetotactic bacteria in sediments, AP.PFPMCG.JP

Abstract

During an expedition with RV M.S. Merian exploring the Holocene and Pleistocene climate history of the Amazon River basin, oceanographic data were collected in order to study changes in ocean circulation on millennial to decadal time scales as well as the Holocene development of the Amazon submarine delta. Sediments and the water column on the continental slope and shelf off northern Brazil and French Guiana were sampled by gravity corer, multi corer, Rosette/CTD, in-situ and shipboard pump systems. We aim to use clay mineral record in sediment cores in order to: (1) document the effect of deforestation on the composition and deposition of Amazon sediments; (2) reconstruct the Holocene history of precipitation over the Amazon basin on decadal time scales; (3) to investigate the relationship between variations in ocean circulation and tropical precipitation on millennial time scales.

Scientific publications

(4)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

SAVIAN, JAIRO F.; JOVANE, LUIGI; GIORGIONI, MARTINO; IACOVIELLO, FRANCESCO; RODELLI, DANIEL; ROBERTS, ANDREW P.; CHANG, LIAO; FLORINDO, FABIO; SPROVIERI, MARIO. Environmental magnetic implications of magnetofossil occurrence during the Middle Eocene Climatic Optimum (MECO) in pelagic sediments from the equatorial Indian Ocean. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY, v. 441, n. 1, SI, p. 212-222, JAN 1 2016. (11/22018-3, 12/18304-3, 12/15995-5)

IACOVIELLO, FRANCESCO; GIORGETTI, GIOVANNA; MEMMI, ISABELLA TURBANTI; PASSCHIER, SANDRA. Early Miocene Antarctic glacial history: new insights from heavy mineral analysis from ANDRILL AND-2A drill core sediments. INTERNATIONAL JOURNAL OF EARTH SCIENCES, v. 104, n. 3, p. 853-872, APR 2015. (12/18304-3)

SAVIAN, JAIRO F.; JOVANE, LUIGI; FRONTALINI, FABRIZIO; TRINDADE, RICARDO I. F.; COCCIONI, RODOLFO; BOHATY, STEVEN M.; WILSON, PAUL A.; FLORINDO, FABIO; ROBERTS, ANDREW P.; CATANZARITI, RITA; et al. Enhanced primary productivity and magnetotactic bacterial production in response to middle Eocene warming in the Neo-Tethys Ocean. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY, v. 414, p. 32-45, NOV 15 2014. (11/22018-3, 12/18304-3)

SAVIAN, JAIRO F.; JOVANE, LUIGI; GIORGIONI, MARTINO; IACOVIELLO, FRANCESCO; RODELLI, DANIEL; ROBERTS, ANDREW P.; CHANG, LIAO; FLORINDO, FABIO; SPROVIERI, MARIO. Environmental magnetic implications of magnetofossil occurrence during the Middle Eocene Climatic Optimum (MECO) in pelagic sediments from the equatorial Indian Ocean. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY, v. 441, p. 11-pg., 2016-01-01. (12/15995-5, 11/22018-3, 12/18304-3)