| 1. | The formation mechanism of complex rock mass at research area is probed
因此，坝区复杂岩体是蚀变?构造?风化共同作用的结果。 |
| 2. | Genealogy division and geological characteristics of complex rock body in danguanzhang , south jiangxi province
江西南部单观嶂复式岩体岩石谱系单位划分及其特征 |
| 3. | Pyroclastic rocks are a kind of transitional and complex rocks between lavas and sedimentary rocks
摘要火山碎屑岩是介于溶岩和沈积岩之间的过渡类型岩石，岩类复杂。 |
| 4. | For a complex rock foundation , the evaluation of shapes of sliding faces , location , distribution and direction is quite a difficult task
对一个复杂的岩石地基来讲，滑移面的形状、位置、分布和方向的事先假设都是十分困难的。 |
| 5. | Logging interpretation of conglomerate reservoir is very difficult in menggulin area with complex rock structure , strong heterogeneity and clear difference between layers
摘要蒙古林砾岩油藏储层岩石结构复杂，非均质性强，层间差异明显，测井资料解释难度较大。 |
| 6. | Through measurement and data regression analysis at shuibuya hydraulic project , the characteristics of stress field in complex rock mass are also revealed
通过对水布垭枢纽工程的地应力测试成果和地应力场反分析成果的综合研究，展示了复杂岩体中的应力分布特征。 |
| 7. | Under the combined action of above - mentioned four factors , the complex rock mass at right bank which consist of two weak rock mass bands and superficial unloading relaxed rock mass came into being
其相关系数在0 . 85以上。在此定量化基础上，结合现场分类以及水利水电工程地质勘察规范，通过对比综合，得到研究区岩体质量分级。 |
| 8. | Research shows that four factors have great influence on the formation of complex rock mass . first , rock mass subjected six times of tectonic movement during long period of geo - history , each tectonic movement produced fractures and associated joints corresponding to the orientation of maximum principal stress and deteriorated the properties of fractures formed at former period ( s ) . second , down - cutting of langcangjiang river produced unloading fractures
采用了四种岩体质量分级评价方案对研究区岩体质量进行了研究，这四种方案包括：工程岩体分级标准( gb50218 - 94 ) 、水利水电围岩工程地质分类( gb50267 ? 99 ) 、岩体rmr分类( bieniawski , 1973 ) 、岩体质量指数z分级(小湾, 1995 ) 。 |
| 9. | In the area of the left bank , rock body is mainly composed of permian period - triassic period granite and triassic period siltstones and mudstones ( t2m ) . moreover , the rock body has been more faulted , such as f1 f3 f9 and so on . in addition , there also exist a lot of joints and form complex rock mass structure
工程区主要出露二迭纪三迭纪花岗岩体( _ 4 ~ 3 _ 5 ~ 1 )和三迭系中统忙怀组下段沉积岩( t _ ( 2m ) ~ 1 ) ，发育有工程区规模最大的f _ 1和f _ 3断层，以及其它断层和大量的各类断续延伸的裂隙，岩体结构较为复杂。 |
| 10. | Eight aspects related to the study of early precambrian metamorphic stratigraphy are dealt with in this paper : general situation of the study ; complexity of the stratigraphy and difficulties of the study ; thoughts and methods of the study ; division of rock suite , rock group and complex rock ; researches on important regional discordances ; types and characteristics of protolith and recovery of palaeoenvironment ; correct differentiation of the metamorphic strata , ttg rock system and other metamorphic plutonic rocks ; determination of the ages of the metamorphic strata
摘要主要论述了与早前寒武纪变质地层（学）有关的8个方面的问题：早前寒武纪变质地层的研究概况；早前寒武纪变质地层的复杂性和研究难度；早前寒武纪变质地层研究的思路和工作方法；早前寒武纪变质岩石地层单位岩群、岩组和杂岩的划分问题；重要区域性不整合的研究；鉴定变质地层的原岩类型、岩石性质和恢复古环境；正确区分变质地层和ttg岩系以及其他变质深成岩；变质地层时代的确定。 |
