塔里木盆地志留系柯坪塔格组潮坪沉积特征分析
Tidal Flat Sedimentary Characteristics of Silurian Gepingtage Formation in Tarim Basin
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摘要: 以岩心详细观察与描述为基础，结合露头剖面、测井的分析，对塔里木盆地志留系的沉积构造和沉积序列剖析，分析了潮坪相的成因类型及识别标志。分析了塔里木盆地志留系潮坪相分布范围，探讨了海进-海退环境下的潮坪发育的特征，进一步总结了潮坪沉积时空演化规律。明确了塔里木盆地志留系潮坪沉积的沉积模式，为相似沉积类型的储层的成因类型、时空展布和准确预测起到重要指导作用。Abstract: Based on the detailed observation and description of the core and combined with the analysis of the outcrop profile and logging, the sedimentary structure and sedimentary sequence of the Tarim Basin in Silurian have been explored in this paper. The genetic types and identification marks of tidal flat facies have been revealed. Furthermore, the distribution range about the tidal flat facies of Silurian Gepingtage Formation in Tarim Basin has been analyzed, the development features of tidal flat in a transgressive regressive environment, and the spatiotemporal evolution law of tidal flat sedimentary has been further summarized. And then, the tidal flat depositional model of Silurian Gepingtage Formation in Tarim Basin has been clarified, which will contribute to understand the genetic types, temprospacial attributes and accurate forecasts of similar sedimentary types.
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Key words:
- Tarim Basin /
- Silurian /
- Gepingtage Formation /
- tidal flat sedimentary /
- depositional model
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