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Thermal maturity and suppressed vitrinite reflectance for Neogene petroleum source rocks of Japan

机译:日本新近系石油烃源岩的热成熟度和抑制的镜质体反射率

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摘要

The northern part of Honshu Island contains the major petroleum resources of Japan. The source rocks mainly comprise a sequence of Miocene marine mudstones that are overlain in places by thick Pliocene and Pleistocene sediments. In the past, mainly vitrinite reflectance analyses have been used to evaluate thermal maturities of these rocks. However, vitrinite reflectance suppression caused by compositional variation of vitrinite is common in marine-deposited rocks, and therefore, modeled estimations of the extent of petroleum generation from the Japanese sequences could be in error.
机译:本州岛北部包含日本主要的石油资源。烃源岩主要由中新世海相泥岩序列组成,该层被厚厚的上新世和更新世沉积物所覆盖。过去,主要使用镜质 反射率分析来评估这些岩石的热成熟度 。但是,在海上沉积的 岩石中常见的是由镜质体的组成变化引起的 对镜质体反射的抑制作用,因此,对石油 程度的建模估算日文序列的生成可能是错误的。

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  • 来源
    《AAPG Bulletin》 |2004年第10期|00001335-00001356|共22页
  • 作者单位

    Department of Earth and Environmental Sciences, Hirosaki University, Hirosaki 036-8561, Japanujiie@cc.hirosaki-u.ac.jp;

    Commonwealth Scientific and Industrial Research Organisation Petroleum, P.O. Box 136, North Ryde, NSW, 1670, AustraliaNeil.Sherwood@csiro.au;

    Commonwealth Scientific and Industrial Research Organisation Petroleum, P.O. Box 136, North Ryde, NSW, 1670, AustraliaMohinudeen.Faiz@csiro.au;

    Commonwealth Scientific and Industrial Research Organisation Petroleum, P.O. Box 136, North Ryde, NSW, 1670, Australiaronwtwilkins@hotmail.com;

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