松辽盆地嫩江组脱羟基维生素E的分布及其地球化学意义
The distribution of methylated-2-methyltrimethyltride-cylchromans and geochemical implication in Nenjiang Formation of the Late Cretaceous from Songliao Basin
查看参考文献30篇
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文摘
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脱羟基维生素E是沉积物(岩)中一类具有水体盐度指示意义的生物标志化合物,在现代和古代沉积物及原油中均有检出.在松辽盆地松科1井晚白垩系嫩江组岩芯样品中检测发现的脱羟基维生素E系列化合物显示脱羟基维生素E的组成分布在剖面上的变化主要反应了沉积埋葬时的环境盐度,氧化状态的变化,而与母源组成,有机质成熟度等无明显相关性;其中,δ-MTTC在咸水性环境最为丰富,而在低盐的半咸水-淡水氧化性环境中基本缺失;α-MTTC在所有盐度环境中都很丰富,γ-MTTC的丰度则在盐水-咸水环境中明显高于低盐半咸水环境,而且在盐水环境中γ-MTTC>β-MTTC,咸水环境显示γ-MTTC<β-MTTC.研究发现,α-MTTC/γ-MTTC(α/γ)可作为α-MTTC/δ-MTTC(α/δ)比值的替代指标,当α-MTTC/γ-MTTC比值小于2时为盐水环境,比值大于15时为半咸水-淡水环境,介于之间为咸水环境.相关参数及综合分析显示嫩江组一,二段沉积时期水体盐度及氧化条件显著不同,嫩一段主力烃源岩沉积时期以与海水盐度相当的咸水,存在水体分层的性湖泊环境为主,顶部出现短期咸化的盐水环境;而嫩二段主要为半咸水-淡水氧化性湖泊环境,盐度比较稳定 |
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其他语种文摘
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Methylated-2-methyltrimethyltride-cylchromans(MTTCs) is a salinity indicating biomarkers that are widely detected in modern and ancient sediments and crude oil. The composition and distribution of methyled-MTTCs identified in Late Cretaceous core samples of Nenjiang Formation(K2n1 and K2n2) of SK-1 drilling from Songliao Basin are mainly indicative of the depositional environment of salinity, redox state and their variation on the profile, while bearing no relation with organic matter types, burial depths, maturity. Among these MTTCs,δ-MTTC is abundant in salty reduction environment while absent in the low salinity aerobic environment, while α-MTTC is a non-salinity dependent compound and rich in all environments, while γ-MTTC shows a relatively higher abundance in the higher salinity environment than that of lower saline environment;furthermore, relative abundance of two dimethyl-MTTCs display a relation of γ-MTTC>β-MTTC in higher-salinity environment, but γ-MTTC<β-MTTC in lower salinity environment. This study also shows that α-MTTC/γ-MTTC(α/γ) ratio is also indicative of the salinity of water environments,as when the α/γ ratio is less than 2, which indicates a mesosaline environment, when a ratio of greater than 15 is indicative of a semi-saline to freshwater lacustrine environments, while a ratio between 2 and 15 is indicative of normal marine-ike salinity environment. The combination of all related indexes and biomarkers suggests that K2n1 and K2n2 were formed under significantly different salinity,as the K2n1 was likely developed under a normal marine salinity-like environment with a short period of mesosaline environment at the top section;while K2n2 was likely developed under a semi-saline to freshwater lacustrine environment with a relative stable salinity |
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来源
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地球化学
,2010,39(5):469-478 【核心库】
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关键词
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脱羟基维生素E
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古盐度
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沉积环境
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嫩江组
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松辽盆地
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地址
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中国科学院广州地球化学研究所, 有机地球化学国家重点实验室, 广东, 广州, 510640
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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0379-1726 |
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学科
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地质学 |
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基金
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国家973计划
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文献收藏号
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CSCD:4044599
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参考文献 共
30
共2页
|
|
1.
Sinninghe DamstéJ S. The identification of mono-,di-and trimethyl 2-methyl-2-(4,8,12-trimethyltridecyl)chromans and their occurrence in the geosphere.
Geochem Cosmochim Acta,1987,51(9):2393-2400
|
被引
1
次
|
|
|
|
|
2.
de Leeuw J W. Organic sulfur compounds and other biomarkers as indicators of palaeosalinity.
ACS Symposium: Geochemistry of Sulfur in Fossil Fuels,1990:417-443
|
被引
1
次
|
|
|
|
|
3.
黄龙威. 东濮凹陷西斜坡地区原油成熟度研究.
石油学报,2006,27(5):51-55
|
被引
9
次
|
|
|
|
|
4.
盛国英. 原油与生油岩中脱羟基维生素E的发现及意义.
中国科学(B辑),1987,17(4):423-428
|
被引
19
次
|
|
|
|
|
5.
朱扬明. 柴达木盆地原油地球化学特征及其源岩时代判识.
地质学报,2003,77(2):272-279
|
被引
17
次
|
|
|
|
|
6.
Zhu Yangming. Geochemical characteristics of Tertiary saline lacustrine oils in the western Qaidam Basin, northwest China.
Appl Geochem,2005,20(10):1875-1889
|
被引
38
次
|
|
|
|
|
7.
范善发. 抚顺烛煤中二甲基一,三甲基-2-甲基-2-(4,8,12-三甲基十三基)色满和苯并藿烷及其地球化学意义.
地球化学,1988,17(4):351-356
|
被引
2
次
|
|
|
|
|
8.
包建平. 脱羟基维生素E及其地球化学意义.
江汉石油学院学报,1989,11(3):11-18
|
被引
7
次
|
|
|
|
|
9.
包建平. 江汉盆地烃源岩中甲基化烷基色瞒系列的分布及其与成熟度的关系.
中国科学(D辑),2008,38:31-37
|
被引
3
次
|
|
|
|
|
10.
江继纲.
盐湖油气的形成,演化和运移聚集,2004:141-171
|
被引
1
次
|
|
|
|
|
11.
姜春庆. 脱羟基维生素E的演化规律及其地球化学意义.
石油勘探与开发,1990,17(2):22-28, 21
|
被引
2
次
|
|
|
|
|
12.
张水昌. 盐湖盆地沉积有机质中的脱羟基维生素E.
沉积学报,1990,8(1):57-64
|
被引
9
次
|
|
|
|
|
13.
Lu Hong. Stable carbon isotopic compositions of methylated-MTTC in crude oils from saline lacustrine depositional environment: Source implications.
Acta Geol Sinica,2007,81(6):1041-1048
|
被引
3
次
|
|
|
|
|
14.
Sinninghe DamstéJ S. Analysis, structure and geochemical significance of organically-bound sulphur in the geosphere: State of the art and future research.
Org Geochem,1990,16(4/6):1077-1101
|
被引
15
次
|
|
|
|
|
15.
Sinninghe DamstéJ S. Evidence for gammacerane as an indicator of water column stratification.
Geochem Cosmochim Acta,1995,59(9):1895-1990
|
被引
141
次
|
|
|
|
|
16.
Li M W. Biomarkers or not biomarkers-A new hypothesis for the origin of pristane involving derivation from methyltrimethyltridecylchromans(MTTCs)formed during diagenesis from chlorophyll and alkylphenols.
Org Geochem,1995,23(2):159-167
|
被引
4
次
|
|
|
|
|
17.
Peters K E.
The Biomarker Guide: I. Biomarkers and Isotopes in the Environment and Human History,2005:39-40
|
被引
1
次
|
|
|
|
|
18.
Goossens H. Tocopherols as likely precursors of pristane in ancient sediments and crude oils.
Nature,1984,312(5993):440-442
|
被引
23
次
|
|
|
|
|
19.
Sinninghe DamstéJ S. Variations in abundances and distributions of isoprenoid chromans and long-chain alkylbenzenes in sediments of the Mulhouse Basin: A molecular sedimentary record of palaeosalinity.
Org Geochem,1993,20(8):1201-1215
|
被引
1
次
|
|
|
|
|
20.
Schwark L. Geochemical characterization of Malm Zeta laminated carbonates from the Franconian Alb,SW-Germany(Ⅱ).
Org Geochem,1998,29(8):1921-1952
|
被引
15
次
|
|
|
|
|
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