Paleoenvironmental interpretation of the Amynteon-Ptolemaida lignite deposit in northern Greece based on its petrographic composition

Mavridou, E; Antoniadis, P; Khanaqa, P; Riegel, W; Gentzis, T

dc.contributor.author	Mavridou, E	en
dc.contributor.author	Antoniadis, P	en
dc.contributor.author	Khanaqa, P	en
dc.contributor.author	Riegel, W	en
dc.contributor.author	Gentzis, T	en
dc.date.accessioned	2014-03-01T01:19:24Z
dc.date.available	2014-03-01T01:19:24Z
dc.date.issued	2003	en
dc.identifier.issn	0166-5162	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/15471
dc.subject	Amynteon-Ptolemaida	en
dc.subject	Greece	en
dc.subject	Lignite	en
dc.subject	Paleoenvironment	en
dc.subject	Petrography	en
dc.subject.classification	Energy & Fuels	en
dc.subject.classification	Geosciences, Multidisciplinary	en
dc.subject.other	Paleoenvironment	en
dc.subject.other	Fossil fuel deposits	en
dc.subject.other	Groundwater	en
dc.subject.other	Microscopic examination	en
dc.subject.other	Petrography	en
dc.subject.other	Tissue	en
dc.subject.other	Vegetation	en
dc.subject.other	Lignite	en
dc.subject.other	basin fill	en
dc.subject.other	coal	en
dc.subject.other	lacustrine environment	en
dc.subject.other	lignite	en
dc.subject.other	limnology	en
dc.subject.other	paleoenvironment	en
dc.subject.other	petrography	en
dc.subject.other	Pleistocene	en
dc.subject.other	Greece	en
dc.title	Paleoenvironmental interpretation of the Amynteon-Ptolemaida lignite deposit in northern Greece based on its petrographic composition	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S0166-5162(03)00115-0	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S0166-5162(03)00115-0	en
heal.language	English	en
heal.publicationDate	2003	en
heal.abstract	The objective of this study was to reconstruct the paleoenviromnent during formation of the deposit at Amynteon-Ptolemaida based mainly on its petrographic but also supported by its paleobotanic character and fossils found in the lignite beds themselves. The deposit of Amynteon occurs in the northern part of the elongated basin of Ptolemaida-Amynteon. The type of lignite formation is, in general terms, similar to the deposit of Ptolemaida, and the lignite is present in the Pleistocene strata of the basin. The alternating nature of lignite and interburden is an important characteristic of the deposit. In this study, we selected 20 samples of lignite from a representative drillhole, namely B-258 in order to discern its petrography. Optical microscopy showed that the huminite group macerals are dominant, ranging from 42.5% to 95.3%. Humotelinite is present in low to high quantities (12.0-79.5%), followed closely by humodetrinite. Humocollinite is present in very small amounts. In addition, macerals of the liptinite and inertinite groups are found in small concentrations, with a few exceptions. A number of indices, such as gelification index (GI), vegetation index (VI), groundwater index (GWI), tissue preservation index (TPI), and their ratios (e.g., VI/GWI, TPI/GI), were used to reconstruct the conditions prevailing during peat formation. The results indicate that the paleoenvironment was mainly limnic at the initial stages and transitioned to limnotelmatic with occasional rheotrophic conditions. The organic matter responsible for lignite formation developed mainly in a forested swamp environment with occasional transitions either towards a wet limnic (open water) or a drier telmatic environment. (C) 2003 Elsevier B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	International Journal of Coal Geology	en
dc.identifier.doi	10.1016/S0166-5162(03)00115-0	en
dc.identifier.isi	ISI:000188004400004	en
dc.identifier.volume	56	en
dc.identifier.issue	3-4	en
dc.identifier.spage	253	en
dc.identifier.epage	268	en