Seasonal Amazonian rainfall variation in the Miocene climate Optimum
- Kaandorp, R.J.G.
- Vonhof, H.B.
- Wesselingh, F.P
- Romero-Pittman, L.
- Kroon, D.
- van Hinte, J.E.
Publication date
January 2005
DOI ISSN
0031-0182 Citation count (estimate)
56Abstract
Modern and fossil freshwater bivalves from north-eastern Peru are investigated to reconstruct seasonal rainfall patterns in Miocene Amazonia. Oxygen isotope variation in incremental growth bands of fossil bivalves reflects past hydrological conditions in the Miocene Climate Optimum (MCO), when the world was warmer than today. A calibration experiment was conducted on a modern bivalve. Modern river dwelling Triplodon corrugatus shows large amplitudinal changes in
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