Petrographical, palynological, and sedimentological aspects regarding the genesis of palaeogene lignites near Alexandroupolis, Thrace, Greece

Antoniadis, P; Kaouras, G; Khanaqa, P; Riegel, W; Gentzis, T

dc.contributor.author	Antoniadis, P	en
dc.contributor.author	Kaouras, G	en
dc.contributor.author	Khanaqa, P	en
dc.contributor.author	Riegel, W	en
dc.contributor.author	Gentzis, T	en
dc.date.accessioned	2014-03-01T01:24:51Z
dc.date.available	2014-03-01T01:24:51Z
dc.date.issued	2006	en
dc.identifier.issn	1556-7036	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17466
dc.subject	Alexandroupolis	en
dc.subject	Greece	en
dc.subject	Palaeogene lignites	en
dc.subject	Palynology	en
dc.subject	Petrography	en
dc.subject.classification	Energy & Fuels	en
dc.subject.classification	Engineering, Chemical	en
dc.subject.classification	Environmental Sciences	en
dc.subject.other	Fluorescence	en
dc.subject.other	Groundwater	en
dc.subject.other	Mines	en
dc.subject.other	Petrography	en
dc.subject.other	Sedimentology	en
dc.subject.other	Water resources	en
dc.subject.other	Alexandroupolis	en
dc.subject.other	Greece	en
dc.subject.other	Palaeogene lignites	en
dc.subject.other	Palynology	en
dc.subject.other	Lignite	en
dc.title	Petrographical, palynological, and sedimentological aspects regarding the genesis of palaeogene lignites near Alexandroupolis, Thrace, Greece	en
heal.type	journalArticle	en
heal.identifier.primary	10.1080/009083190889717	en
heal.identifier.secondary	http://dx.doi.org/10.1080/009083190889717	en
heal.language	English	en
heal.publicationDate	2006	en
heal.abstract	Several minor lignite deposits of Palaeogene (Eocene to Oligocene) age occur in the vicinity of Alexandroupolis, Thrace, northern Greece. A fell, rather thin seams were mined in the past by small private operations for local use. Coal samples have been collected front old mine dumps and outcrops around abandoned mine posts to be studied by means of maceral analysis at high magnification. The groundwater and vegetation index are calculated from the maceral composition and used to draw conclusions concerning the environment of deposition. In addition, block samples of coal cut perpendicular to bedding were studied at intermediate magnification and underfluorescence thus revealing some interesting bedding features as well as well-preserved plant organisms. The coals are characteristically finely laminated and highly gelified. Palynological preparations have thus far yielded only, poorly preset-lied palynomorph assemblages rather low in diversity and dominated by fern spores. This fern dominance is rather unusual: however, it is compatible with the occurrence of fertile fern fronds observed in petrographic coal sections. Accompanying clastic sediments exhibit cyclic fining-upward sequences at a scale averaging about 1 m in vertical extent. Grain sizes range from small gravel to clay and silt. In some cases, siltstones in the roof of coal seams include abundant plant fragments showing parallel venation. The evidence presented front various sources suggests a rather unstable fluvial environment and a generally high water table on the flood plain for the formation of these lignites.	en
heal.publisher	TAYLOR & FRANCIS INC	en
heal.journalName	Energy Sources, Part A: Recovery, Utilization and Environmental Effects	en
dc.identifier.doi	10.1080/009083190889717	en
dc.identifier.isi	ISI:000236987800010	en
dc.identifier.volume	28	en
dc.identifier.issue	2	en
dc.identifier.spage	117	en
dc.identifier.epage	133	en