干旱区生态环境知识资源中心(Arid): Influence of paleoenvironmental conditions on distribution and relative abundance of saturated and aromatic hydrocarbons in sediments from the NW part of the Toplica basin, Serbia

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DOI	10.1016/j.marpetgeo.2020.104252
	Influence of paleoenvironmental conditions on distribution and relative abundance of saturated and aromatic hydrocarbons in sediments from the NW part of the Toplica basin, Serbia
	Burazer, Nikola 1; Sajnovic, Aleksandra 2; Vasic, Nebojsa 3; Kasanin-Grubin, Milica 2; Zivotic, Dragana 3; Mendonca Filho, Joao Graciano 4; Vulic, Predrag 3; Jovancicevic, Branimir 1
通讯作者	Sajnovic, Aleksandra
来源期刊	MARINE AND PETROLEUM GEOLOGY
ISSN	0264-8172
EISSN	1873-4073
出版年	2020
卷号	115
英文摘要	The investigation of the relationship between paleoenvironmental conditions and distribution and relative abundance of specific saturated and aromatic hydrocarbons was the main objective of this study, thus marking the parameters, which were most sensitive to environmental changes. Insights on the type, generative potential, and maturity of organic matter (OM), as well as paleoclimate conditions, along with the reconstruction of depositional settings of the northwest part of the Toplica basin (Serbia), were provided. Organic petrographic, palynofacies, organic geochemical, mineralogical, and XRF analyses were carried out to investigate 40 sediment samples of the Prebreza and Cucale sedimentary units. Investigated samples were deposited in the saline and anoxic environment, under semi-arid to semi-humid/humid climate conditions, along with the constant inflow of volcanoclastic material. The predominance of delta-methyltrimethyltridecil chroman (delta-MTTC) within euxinic portions of the stratified water column was associated with an increase in salinity, which was noticed for sediments of the Prebreza unit. Sediments from this stratigraphic unit showed a higher contribution of algae precursor, whereas sediments of the Cucale unit suggested higher participation of microbiologically reworked OM. Most of the samples contained oil-prone kerogen type II. Maturity of the OM for sediments of the Prebreza unit ranged from immature to early-mature, while for samples of the Cucale unit varied from early-mature to mature stages. Distribution of hopane biomarkers typical for crude oil indicated that depth of 1 km was a boundary for the genesis of thermodynamic, more stable compounds. A significant portion of semifusinite was correlated with the paleofire event, which affected the distribution of n-alkanes. The high production of hydrocarbons was related to volcanic activity. Parameters, which proved to be highly susceptible at the stratigraphic boundary between the Prebreza and Cucale units, were C-value, S/H, alpha-MTTC, delta-MTTC, beta-/gamma-MTTC, and (1,3- + 1,6-)/(1,4 + 1,5-DMC), respectively.
英文关键词	Lacustrine Miocene sediments Organic petrography Palynofacies Photic zone euxinia Biomarker index
类型	Article
语种	英语
国家	Serbia ; Brazil
收录类别	SCI-E
WOS记录号	WOS:000519654400006
WOS关键词	ORGANIC-MATTER ; FRESH-WATER ; CARBAZOLE DISTRIBUTIONS ; ALKANE DISTRIBUTIONS ; PRIMARY PRODUCTIVITY ; QAIDAM BASIN ; CLASSIFICATION ; GEOCHEMISTRY ; INDICATORS ; RECORDS
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/315155
作者单位	1.Univ Belgrade, Fac Chem, Studentski Trg 12-16, Belgrade 11000, Serbia; 2.Univ Belgrade, Ctr Chem, IChTM, Studentski Trg 12-16, Belgrade 11000, Serbia; 3.Univ Belgrade, Fac Min & Geol, Dusina 7, Belgrade 11000, Serbia; 4.Univ Fed Rio de Janeiro, Inst Geosci, Dept Geol, Av Athos da Silveira 274, BR-21949900 Rio De Janeiro, Brazil
推荐引用方式 GB/T 7714	Burazer, Nikola,Sajnovic, Aleksandra,Vasic, Nebojsa,et al. Influence of paleoenvironmental conditions on distribution and relative abundance of saturated and aromatic hydrocarbons in sediments from the NW part of the Toplica basin, Serbia[J],2020,115.
APA	Burazer, Nikola.,Sajnovic, Aleksandra.,Vasic, Nebojsa.,Kasanin-Grubin, Milica.,Zivotic, Dragana.,...&Jovancicevic, Branimir.(2020).Influence of paleoenvironmental conditions on distribution and relative abundance of saturated and aromatic hydrocarbons in sediments from the NW part of the Toplica basin, Serbia.MARINE AND PETROLEUM GEOLOGY,115.
MLA	Burazer, Nikola,et al."Influence of paleoenvironmental conditions on distribution and relative abundance of saturated and aromatic hydrocarbons in sediments from the NW part of the Toplica basin, Serbia".MARINE AND PETROLEUM GEOLOGY 115(2020).