The occurrence of perylene in Middle Jurassic fossil wood and Miocene xylites from Poland
is described, along with its correlation with unsubstituted polycyclic aromatic hydrocarbons …

The origin of the organic matter (OM) and the characteristics of the depositional environment
of lignites from the Upper Miocene Kovin deposit (hosting three coal seams) of Serbia were …

Pentacyclic triterpenoids, particularly hopanoids, are organism-specific compounds and are
generally considered as useful biomarkers that allow fingerprinting and classification of …

Abstract The Paleocene sediments from Barsingsar lignite mine section of Bikaner-Nagaur
Basin in Rajasthan, India were subjected to gas chromatography–mass spectrometry (GC …

Sediments of two alpine lakes in Tatra Mts., Slovakia, record the environmental history of
their catchments from deglaciation in Late Glacial warming up to the Subboreal period. We …

Lichens are found in a wide range of terrestrial habitats and have important roles in
terrestrial ecosystems. However, because lichens are easily decomposed and are rarely …

The present study provides further insight into the composition of polar compounds in the
Miocene Maritza-East lignite, Bulgaria. Samples from two coal seams and interbedded …

The hydrocarbons of eight lichen species isolated in Japan were analyzed, and diverse
mono-, di-, and tri-unsaturated alkenes were detected. The positions of the double bonds of …

Tropical brackish ecosystems are characterized by mangrove-dominant communities which
are well-adapted to extreme and unique environmental conditions. Organic matter (OM) …

The composition of n-alkanes; sesqui-, di-, and triterpenoids; steroids; carboxylic acids; and
tocopherols of sphagnum peat from the southern, middle, and northern taiga and forest …