Universal Journal of Geoscience Vol. 4(2), pp. 15 - 22
DOI: 10.13189/ujg.2016.040201
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First Report of Biomarkers from Tabriz Lignite Beds (NW Iran)

Rana Shiri ¹, Aliasghar Siabeghodsy ^1,*, Reza Sabzi ^2
1 Department of Geology, Urmia University, Iran
² Department of Chemistry, Urmia University, Iran

ABSTRACT

Biomarkers are very useful tools for paleontologists, especially where the undistinguishable organic matters like Tabriz lignites cannot be attributed to particular fossils. In this study, the important detected biomarkers in Tabriz lignite beds are Oleananes (Olean-12- ene and Friedelane), beta carotene, Dibenzofuran and Gibberellic acid. The results indicate angiosperm higher and lower plants entering from adjacent areas into the lake sedimentary environment of the lignite beds. No biomarker of gymnosperm was found. The short chain even n-alkanes (C18 and C20) imply the contribution of marine microorganisms, C23 normal alkane is derived from terrestrial plants specially Sphagnum leaf wax, the existing simple methyl saturated alkanes (C11-C22) is derived from cyanobacteria and algae and thiophene formed by sulfate reducing bacteria. Thus, Tabriz lignite have two extrabasinal and intrabasinal origins that the first is made of the higher (angiosperms) and lower terrestrial plants have transported by runoffs into the basin and the second origin is made of seagrasses, cyanobacteria and algae within the lignite beds basin.

KEYWORDS
Biomarker, Cyanobacteria, Tabriz Lignite Beds

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] Rana Shiri , Aliasghar Siabeghodsy , Reza Sabzi , "First Report of Biomarkers from Tabriz Lignite Beds (NW Iran)," Universal Journal of Geoscience, Vol. 4, No. 2, pp. 15 - 22, 2016. DOI: 10.13189/ujg.2016.040201.

(b). APA Format:
Rana Shiri , Aliasghar Siabeghodsy , Reza Sabzi (2016). First Report of Biomarkers from Tabriz Lignite Beds (NW Iran). Universal Journal of Geoscience, 4(2), 15 - 22. DOI: 10.13189/ujg.2016.040201.