A pollen diagram from the Upper Holocene of Lower Magdalena Valley
In this article the results of a pollen analytical investigation of a section in the tropical lowland of Colombia are discussed. The section has been taken from a lake in the lower course of the River Magdalena (fig. 1). This lake, called ”Cienaga de Morrocayal”, is situated about 20 metres above sea-level; the section represents the greater part of the Subatlantic, and in the course of this period there was a succession of humid and drier periods. These fluctuations seem to represent a cyclic phenomenon. Two C14 analyses of charcoal-samples from the peatlayers, found in this section, showed that these layers were formed at about 1470 A.D. and about 1230 A.D.
|Journal||Leidse Geologische Mededelingen|
|Rights||Released under the CC-BY 4.0 ("Attribution") License|
Wijmstra, T.A. (1967). A pollen diagram from the Upper Holocene of Lower Magdalena Valley. Leidse Geologische Mededelingen, 39(1), 261–267.
|LGM1967039001006enc.pdf Final Version , 372kb|