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lithology groups
相关语句
  岩性组
     Permian system in Tazhong area may be divided into three lithology groups: lower clastic group, volcanics group and upper clastic group based on the data of core, drilling, logging and so on.
     依据岩心、钻井、测井等资料 ,将塔中地区二叠系分为三个岩性组 :下碎屑岩组、火山岩组、上碎屑岩组。
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  相似匹配句对
     ON THE n-PATH GROUPS
     N路群
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     ON CGR-GROUPS
     关于CGR—群的探讨
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     combinations of lithology;
     红层边坡岩体岩性的组合特征;
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     ON THE LITHOLOGY OF JADEITE JADE
     翡翠岩性论
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  lithology groups
The distribution of fractures in most lithology groups can be explained by the function: $$F = a/(1 + b\;D\exp (c))$$, where F is relative frequency, D is fracture density and a, b, and c are constants.
      
There are significant differences between the lithology groups in terms of fracture density, although the results in the three wells are not the same.
      
Increasing porosity and permeability of rock decrease the threshold of fracture density in some of the defined lithology groups.
      


Permian system in Tazhong area may be divided into three lithology groups: lower clastic group, volcanics group and upper clastic group based on the data of core, drilling, logging and so on. Plane distribution rule of Permian sedimentation is summarized through stratigraphic correlation and sedimentary facies analysis. The types of developed sedimentary facies in this area include delta deposits of snaking stream, shoreshallow lake, shallow lake and braidedstream. It is proposed firstly...

Permian system in Tazhong area may be divided into three lithology groups: lower clastic group, volcanics group and upper clastic group based on the data of core, drilling, logging and so on. Plane distribution rule of Permian sedimentation is summarized through stratigraphic correlation and sedimentary facies analysis. The types of developed sedimentary facies in this area include delta deposits of snaking stream, shoreshallow lake, shallow lake and braidedstream. It is proposed firstly that the upper Permian in the southeast edge of Tazhong area is braidedstream delta deposit and its host is submerged distributary channel composed of conglomeratic sand and sandstone.

依据岩心、钻井、测井等资料 ,将塔中地区二叠系分为三个岩性组 :下碎屑岩组、火山岩组、上碎屑岩组。通过地层对比和沉积相分析 ,总结了二叠纪沉积相平面分布规律 ;该区发育的沉积相类型有 :曲流河、滨浅湖、浅水湖泊三角洲和辫状河三角洲沉积。首次提出塔中地区东南缘上二叠统为辫状河三角洲沉积 ,而辫状河三角洲中的主体为由含砾砂岩和砂岩组成的水下分流河道沉积。

 
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