Ice-free intervals continuing into Marine Isotope Stage 3 at Sokli in the central area of the Fennoscandian glaciations

Autor: K.F. Helmens, P.W. Johansson, M.E. Räsänen, H. Alexanderson, K.O. Eskola

Publikováno v: Bulletin of the Geological Society of Finland, Vol 79, Iss 1, Pp 17-39 (2007)

An unusually long and continuous Late Quaternary sedimentary sequence has been preserved in a sedimentary basin formed in the Sokli Carbonatite Massif in eastern-central Finnish Lapland. A nearly complete sediment recovery from the central Sokli basi

Externí odkaz: https://doaj.org/article/f404f36c92b941819fda0506fddf2439

A reconstruction of Colombian biomes derived from modern pollen data along an altitude gradient

Autor: Rob Marchant, Henry Hooghiemstra, T. van der Hammen, E. Schreve-Brinkman, Peter Kuhry, Antoine M. Cleef, Juan Carlos Berrio, Joost F. Duivenvoorden, K.F. Helmens, B. van Geel, G.B.A. van Reenen, Bert Melief

Publikováno v: Review of Palaeobotany and Palynology, 117, 79-92. Elsevier
Review of Palaeobotany and Palynology, 117, 79-92
Review of Palaeobotany and Palynology 117 (2001)

Biomes are reconstructed in Colombia from modern (core-top) pollen data derived from twenty-two sites along an altitudinal gradient (2000 to 4100 m) that encompasses the tree line. The 'biomization' methodology is described in a stepwise manner that

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1f0829aecc9ce885fb78c900acd531df
https://doi.org/10.1016/s0034-6667(01)00078-1

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The Pliocene and Quaternary of the high plain of Bogota (Colombia): a history of tectonic uplift, basin development and climatic change

Autor: K.F. Helmens, T. van der Hammen

Publikováno v: Quaternary International, 22, 41-61. Elsevier

The high plain of Bogota in the Eastern Cordillera of Colombia represents a large tectonic basin that is filled with hundreds of metres of lacustrine and fluvial sediments. In the centre of the basin, the sediment sequence attains a thickness of near

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f847d20cf5d01e972977e853e65d1353
https://dare.uva.nl/personal/pure/en/publications/the-pliocene-and-quaternary-of-the-high-plain-of-bogota-colombia-a-history-of-tectonic-uplift-basin-development-and-climatic-change(e78ca5c1-3a3e-46ce-82d4-46531dc2826f).html

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