Geochemical study of the organic matter from the southern part of the Maritsa Iztok Basin-Reference-Cited by-同舟云学术

Geochemical study of the organic matter from the southern part of the Maritsa Iztok Basin

Published:2023-12 Issue:3 Volume:84 Page:125-128
ISSN:0007-3938
Container-title:Review of the Bulgarian Geological Society
language:en
Short-container-title:Rev. Bulg. Geol. Soc.

Author:

Milakovska Zlatka,Stefanova Maya,Vladislavov Georgi,Vetseva Millena

Abstract

A sequence of carbonaceous mudstones interlayering three lignite seams is characterized by geochemical proxies. The core samples studied came from a borehole drilled in Trojanovo-3 Mine of Maritsa Iztok Basin. The n-alkane molecular composition is dominated by the > C29 long-chain homologues, with a strong “odd” over “even” homologue predominance. In addition to, the prevailing smooth signature of n-alkane distribution attests for one major organic matter source – land-derived higher plants. The sesqui- and di-terpenoid assemblage specifies the prevalence of Cupressaceae, Taxodiaceae, and Podocarpaceae species in the coal-forming mire. The lupane-type triterpenoids registered are a sign for Betulaceae family presence. Biomarkers for herb, macrophyte and algal/bacterial contribution are also recognizable.

Publisher

Bulgarian Geological Society

Subject

General Medicine

Reference14 articles.

1. Andersson, R., P. Kuhry, P. Meyers, Y. Zebühr, P. Crill, M. Mörth. 2011. Impacts of paleohydrological changes on n-alkane biomarker compositions of a Holocene peat sequence in the Eastern European Russian Arctic. – Org. Geochem., 49, 1065–1075; https://doi.org/10.1016/j.orggeochem.2011.06.020.

2. Bechtel, A., R. Sachsenhofer, A. Zdravkov, I. Kostova, R. Gratzer. 2005. Influence of floral assemblage, facies, and diagenesis on petrography and organic geochemistry of the Eocene Bourgas coal and the Miocene Maritza-East lignite (Bulgaria). – Org. Geochem., 36, 1498–1522; https://doi.org/10.1016/j.orggeochem.2005.07.003.

3. Burchfiel, C., R. Nakov, T. Tzankov, T. Royden. 2000. Cenozoic extension in Bulgaria and northern Greece: the northern part of the Aegean extensional regime. – In: Bozkurt, E., J. Winchester, J. Piper. (Eds.). Tectonics and Magmatism in Turkey and the Surrounding Area. 173. Geol. Soc., Sp. Publ., London, 325–352; https://doi.org/10.1144/GSL.SP.2000.173.01.16.

4. Cranwell, P. A., G. Eglinton, N. Robinson, N. 1987. Lipids of aquatic organisms as contributors to lacustrine sediments-II. – Org. Geochem., 11, 513–527; https://doi.org/10.1016/0146-6380(87)90007-6.

5. Meyers, P. A. 2003. Applications of organic geochemistry to palaeolimnological reconstructions: A summary of examples from the Laurentian Great Lakes. – Org. Geochem., 34, 261–289; https://doi.org/10.1016/S0146-6380(02)00168-7.