摘要
Organic matter from the Lower Paleozoic strata on the northern margin of the Tarim Basin of China contains abundant alkylcyclohexanes.The n-alkylcyclohexanes show the even(C16-C20) and odd (C17-C21) carbon number predominance and smooth distribution,and the methyl-n-alkylcycolhexanes the odd carbon number predominance(C17-C21) and smooth distribution,which may be related to their depositional environments and organic precursors.There are some differences in carbon number distribution between the two series of monocyclic alkanes and the n-alkanes marked by smooth distribution.The genetic relationship between the three series of compounds needs to be further studied.
Organic matter from the Lower Paleozoic strata on the northern margin of the Tarim Basin of China contains abundant alkylcyclohexanes.The n-alkylcyclohexanes show the even (C_(16)-C_(20)) and odd (C_(17)-C_(21)) carbon number predominance and smooth distribution,and the methyl-n-alkylcyclohexanes the odd carbon number predominance (C_(17)-C_(21))and smooth distribution,which may be related to their depositional environments and organic precursors.There are some differences in carbon number distribution between the two series ofmonocyclic alkanes and the n-alkanes marked by smooth distribution.The genetic relationship between the three series of compounds needs to be further studied.
