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斯瓦尔巴德东南部埃季奥亚海岸悬崖上,很好地出露着生长断层、倾斜反向和页岩背斜,影响到上三迭统若干三角洲相向上变粗的层序。悬崖照片的研究显示出断层的外形、油贮的变化和页岩背斜的内部特征。 在下降断块上,地层倾斜,并且形成倾斜反向。向上凹进的生长断层之下有页岩背斜发育,上升断块的相对隆起导致若干新沉积的砂岩的侵蚀。后来的页岩沉积形成了一个角度不整合。 断层可能由下面四种原因共同造成: (1)较致密的砂岩,其下为较不致密但孔隙—流体压力过大的粘土; (2)向南的前三角洲坡和(或)区域性的古坡; (3)与三角洲推进有关的差异加载; (4)触发机制,如地震。 这些构造可以当作较大的墨西哥湾海岸和尼日利亚构造的模型,并为在其它古三角洲沉积出露处辨识生长断层提供了准则。
On the cliffs of the Aegialian coast southeast of Svalbard, there are well-exposed growth faults, reverse tilt and shale anticlines, affecting the sequence of up-thickening of several deltas in the Upper Triassic. The study of the cliff photograph shows the shape of the fault, the change in oil storage and the internal features of the shale anticline. On the descending block, the formation is inclined and forms a reverse slope. Shale anticlines developed beneath the upwelling growth fault and the relative uplift of the rising fault block resulted in the erosion of several newly deposited sandstones. Later shale deposits formed an angular unconformity. Faults can be caused by four common causes: (1) denser sandstone below which clay is less dense but pore-fluid pressure is excessive; (2) southward frontal delta and / or regional Ancient slope; (3) differential loading associated with delta propulsion; and (4) triggering mechanisms such as earthquakes. These structures can serve as models for the larger Gulf Coast and Nigeria, and provide guidelines for identifying growth faults in other Paleozoic sedimentary outcrops.