吉普斯兰盆地源岩中二苯并呋喃、苯并[b]萘并呋喃及其烷基衍生物的分布、出现和鉴定

IF 2.6 3区 地球科学 Q2 GEOCHEMISTRY & GEOPHYSICS
Lian Jiang , Hans P. Nytoft , Inna Kampoli , Simon C. George
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引用次数: 0

摘要

在煤炭、煤页岩和吉普斯兰盆地(澳大利亚维多利亚州)页岩提取物中发现了二苯并呋喃、苯并[b]萘并呋喃及其一系列烷基化异构体。二苯并呋喃系列包括 C0-C4 二苯并呋喃,苯并[b]萘系列包括苯并[b]萘呋喃、甲基苯并[b]萘呋喃和可能的二甲基苯并[b]萘呋喃。在吉普斯兰盆地的岩石提取物中,初步确定了 17 种 C2 二苯并呋喃异构体(包括六种新异构体)。C0-C4二苯并呋喃的分布和含量在始新世和古新世岩石中是不同的,这提供了一种源岩年龄诊断相关工具。根据对来源、环境和成熟度衍生参数的调查,生物来源是控制二苯并呋喃、苯并[b]萘呋喃及其烷基异构体丰度和分布的主要因素。C1 二苯并呋喃/二苯并呋喃比率和苯并[b]萘并[2,1-d]呋喃/苯并[b]萘并[1,2-d]呋喃比率的变化可能反映了吉普斯兰盆地当地古气候的变化。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Distribution, occurrence and identification of dibenzofuran, benzo[b]naphthofurans and their alkyl derivatives in Gippsland Basin source rocks

Dibenzofuran, benzo[b]naphthofurans and a series of their alkylated isomers were identified in coal, coaly shale, and shale extracts from the Gippsland Basin (Victoria, Australia). The dibenzofuran series include C0-C4 dibenzofurans, and the benzo[b]naphthofuran series are composed of benzo[b]naphthofuran, methylbenzo[b]naphthofurans, and possible dimethylbenzo[b]naphthofurans. Seventeen C2 dibenzofurans isomers (including six new isomers) were tentatively identified in rock extracts from the Gippsland Basin. The distribution and contents of C0-C4 dibenzofurans are different for Eocene and Paleocene rocks, providing a source rock age diagnostic correlation tool. Biological origin is the main factor that controls the abundance and distribution of dibenzofuran, benzo[b]naphthofuran and their alkylated isomers, based on investigation of source-, environment- and maturity-derived parameters. Variations in the C1 dibenzofurans/dibenzofuran ratio and the benzo[b]naphtho[2,1-d]furan/benzo[b]naphtho[1,2-d]furan ratio may reflect local paleoclimate changes in the Gippsland Basin.

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来源期刊
Organic Geochemistry
Organic Geochemistry 地学-地球化学与地球物理
CiteScore
5.50
自引率
6.70%
发文量
100
审稿时长
61 days
期刊介绍: Organic Geochemistry serves as the only dedicated medium for the publication of peer-reviewed research on all phases of geochemistry in which organic compounds play a major role. The Editors welcome contributions covering a wide spectrum of subjects in the geosciences broadly based on organic chemistry (including molecular and isotopic geochemistry), and involving geology, biogeochemistry, environmental geochemistry, chemical oceanography and hydrology. The scope of the journal includes research involving petroleum (including natural gas), coal, organic matter in the aqueous environment and recent sediments, organic-rich rocks and soils and the role of organics in the geochemical cycling of the elements. Sedimentological, paleontological and organic petrographic studies will also be considered for publication, provided that they are geochemically oriented. Papers cover the full range of research activities in organic geochemistry, and include comprehensive review articles, technical communications, discussion/reply correspondence and short technical notes. Peer-reviews organised through three Chief Editors and a staff of Associate Editors, are conducted by well known, respected scientists from academia, government and industry. The journal also publishes reviews of books, announcements of important conferences and meetings and other matters of direct interest to the organic geochemical community.
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