Ecohydrological perspective of phytogenic organic and inorganic components in Greek lignites: a quantitative reinterpretation

Details Ecohydrological perspective of phytogenic organic and inorganic components in Greek lignites: a quantitative reinterpretation Ecohydrological perspective of phytogenic organic and inorganic components in Greek lignites: a quantitative reinterpretation

Jun 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000e%26psl.179..167m&link_type=abstract

Earth and Planetary Science Letters, Volume 179, Issue 1, p. 167-181.

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A consensus about the development of freshwater wetlands in relation to time and space is urgently required. Our study aims to address this issue by providing additional data for a fine-scaled comparison of local depositional settings of Greek mires during the Pliocene and Pleistocene. Lignite profiles exhibit phytogenic organic components (macerals) that have been used to investigate the past peat-forming vegetation structure and their succession series. The organic petrology of lignite samples from the opencast mines of Komanos (Ptolemais) and Choremi (Megalopolis) was achieved to assess the water supply, wetland type, nutrient status and vegetation physiognomy. A holistic approach (a study of ecosystems as complete entities) was carried out for a paleoecological reconstruction of the mires. Huminite, liptinite and inertinite were traced by means of their chemical and morphological differences together with the morphogenic and taphonomic affinities. The problem of combining independent information from different approaches in a multivariate calibration setup has been considered. Linear regression, non-metric multidimensional scaling and one-way analysis of variance tested the occurrence of palynological and petrological proxies. Although the lignite formation and deposition are less related to humid periods than expected, the resulting differences occurring in the reconstructed development stages appear to be related to astronomically forced climate fluctuations.

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