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已经表明,烃类勘查中碳同位素是有用的。对形成于气体矿床或钻探中的气显示烃类,对岩石样品分解中所吸出来的少量甲烷以及由石油和生油岩中提取的各种分馏物、C~(13)/C~(12)的比率是照例要测定的。
It has been shown that carbon isotopes in hydrocarbon exploration are useful. Hydrocarbons formed on gas deposits or in drilling show a small amount of methane aspirated from the decomposition of rock samples and various fractions extracted from petroleum and source rocks, C 13 C 12 ) Ratio is determined as usual.