We submitted individual aliphatic and polycyclic aromatic hydrocarbons in samples of hydrothermal petroleum from Escanaba Trough to compound specific isotope analysis to trace their origins. The carbon isotope compositions of the alkanes and polycyclic aromatic hydrocarbons (means -27.5 and -24.7%, respectively) reflect a primarily terrestrial organic matter source.

中文翻译：

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东北太平洋埃斯卡纳巴海槽热液石油中单个碳氢化合物的碳同位素系统学

我们提交了来自埃斯卡纳巴海槽的热液石油样品中的单个脂肪族和多环芳烃，以进行复合特定同位素分析以追踪它们的来源。烷烃和多环芳烃的碳同位素组成（分别为 -27.5% 和 -24.7%）反映了主要的陆地有机物质来源。