Abstract — This paper reports the results of numerical estimation of the degree of organic matter maturity and hydrocarbon generation in the rocks of the Bremer 1–6 formations during the burial of the sedimentary basin of the Mawson Sea on the passive margin of East Antarctica. Numerical simulation of basins was conduced for 15 areas along two profiles, 5903 and 5909, in the eastern and western parts of the Mawson Sea. The calculations revealed correlations between the yield of various hydrocarbon fractions and vitrinite reflectance in the supposed source rocks of the basin. Using these correlations, the generation characteristics of the rocks of the Bremer formations in the eastern and western Mawson Sea were compared. It was shown that the rocks of the Bremer 1–4 formations are mainly gas-prone in the eastern part of the basin, but could generate heavy and light oil in the western part of the basin. On the other hand, it was suggested on the basis of modeling that the rocks of the least buried Bremer formations (Bremer 5 and 6) produce mainly heavy oil in the western part of the Mawson Sea and light oil in its eastern part.

中文翻译：

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使用镜质体反射数据估算和比较东西部莫森海（南极洲）的碳氢化合物生成

摘要 — 本文报道了南极东部被动边缘莫森海沉积盆地埋藏期间 Bremer 1-6 组岩石有机质成熟度和生烃程度的数值估算结果。对莫森海东部和西部沿两个剖面 5903 和 5909 的 15 个区域进行了盆地数值模拟。计算揭示了盆地假定烃源岩中各种烃馏分的产量与镜质体反射率之间的相关性。利用这些相关性，比较了莫森海东部和西部布雷默组岩石的生成特征。研究表明，盆地东部 Bremer 1-4 组岩石以天然气为主，但可以在盆地西部产生重油和轻油。另一方面，在建模的基础上提出，埋藏最少的 Bremer 组（Bremer 5 和 6）的岩石主要产于莫森海西部的重油和东部的轻油。