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.

在吉普斯兰盆地（澳大利亚维多利亚州）的煤、煤质页岩和页岩提取物中鉴定出二苯并呋喃、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C ₀ -C ₄二苯并呋喃，苯并[ b ]萘并呋喃系列由苯并[ b ]萘并呋喃、甲基苯并[ b ]萘并呋喃和可能的二甲基苯并[ b ]萘并呋喃组成。在吉普斯兰盆地的岩石提取物中初步鉴定出17 种 C _{2二苯并呋喃异构体（包括 6 种新异构体）。始新统和古新统岩石中C 0} -C ₄二苯并呋喃的分布和含量存在差异，为烃源岩年龄诊断提供了相关工具。根据对来源、环境和成熟度参数的调查，生物来源是控制二苯并呋喃、苯并[ b ]萘并呋喃及其烷基化异构体丰度和分布的主要因素。C ₁二苯并呋喃/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局部古气候的变化。