海成泥質堆積物の続成作用

概要

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In this paper, the definition, process and boundary limitation of diagenesis were explained. In the writer's opinion, diagenesis will be limited its boundary by the temperature lower than 200℃ and by the pressure lower than 1500 kg/cm^2 if the reaction time is more than a million years. Diagenetic changes of pores, sea water, mineral grains and organic matters by the increase of overburden pressure and geothermal temperature in the Cretaceous and Tertiary argillaceous sediments at the deeply drilled wells of Japan were examined. As a result, dewatering of interlayered and interstitial waters and generation of hydrocarbons in the argillaceous sediments during each stage of diagenesis (early compaction, late compaction and transformation) were discussed in detail.
日本地質学会の論文
1978-11-30