英语翻译ABSTRACTSequence stratigraphy has been combined with tot

英语翻译
ABSTRACT
Sequence stratigraphy has been combined with total organic carbon (TOC) analysis from well logs,core,and cuttings to develop a model of TOC accumulation in marine source rocks.Routine well profiling of TOC in marine source rocks has revealed that recurrent patterns in the vertical distribution of TOC occur that can be explained with sequence stratigraphic concepts.The model assumes that the principle controls on organic carbon accumulation are (1) the presence of low oxygen conditions at the sediment/water interface,and (2) sedimentation rate.Under these circumstances,TOC will vary inversely with terrigenous clastic influx.If accommodation is high,clastic influx is low in distal locations,and the resulting weight-percent TOC in basinal sediments is increased.The maximum TOC in a vertical profile through a single marine sequence probably correlates to the maximum flooding surface.TOC decreases above this surface due to increasing sediment dilution during highstand progradation and decreases below it with the higher sedimentation rate of the older transgressive systems tract.Commensurate with TOC increase towards the maximum flooding surface,the organic matter type becomes more marine and therefore increasingly oil prone.Several marine source rock examples are presented as well as a lacustrine example,which also conforms to the marine model.

摘要
层序地层学研究已结合总有机碳（ TOC的）的分析,以及从原木,核心,和剪报发展的典范, TOC的积累,在海相烃源rocks.routine以及剖面TOC在海相烃源岩显示,经常性的模式,在垂直分布TOC的出现可以解释与层序地层concepts.the模型假设的原则,控制对有机碳的积累（ 1 ）在场的超低氧条件在沉积物/水界面,以及（ 2 ）沉积速率.在这种情况下, TOC的会有所不同成反比,与陆源碎屑的涌入.如果住宿是高,碎屑涌入,是低在远端的地点,和由此产生的重量％ TOC在盆地沉积物中是最高TOC的增大,在一个垂直剖面,通过一个单一的海洋序列可能关联的最高水浸surface.toc以上的跌幅,这表面上,由于越来越多泥沙稀释在高位progradation和跌幅低于它与较高的沉积速率较旧的海侵体系tract.commensurate与TOC的增加实现的最高洪水从表面上看,有机质类型变得更加海洋,因此,越来越多的石油prone.several海洋烃源岩的例子是作为,以及作为一个湖泊,例如,这也符合海洋模型.
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