下部层位夹矸厚度变化较大。
该文详细论述了粘土岩夹矸的岩矿特征。
The paper has in detail discussed the characteristics of the rock and minerals of the tonstein.
此项研究可为探讨高岭石夹矸的成因及成煤环境提供微观依据。
The studying gives the microscopical evidences for research on the tonstein's genesis and coal formation environment.
夹矸层的厚度及物理力学性质对顶煤的应力分布和移动有重要影响；
The thickness and physics mechanics nature of rock parting have important influence on the stress distribute and its movement of top coal.
随着煤变质程度的升高，煤层夹矸中高岭石的结晶度、有序度也随之升高。
With the rise of the coal rank, the crystallinity of kaolinite and its order in the anthracite bed go up.
元素地球化学特征还表明，黑岱沟煤及煤层夹矸中微量元素来源于上地壳。
Which also shows that the trace elements in Heidaigou coal and its dirt are from the upper crust.
夹矸的原始组分及粒度大小是造成同一夹矸层中不同夹矸类型间元素含量差异的主要原因。
The original matter of the tonstein and its grain size are main reason for that the different textures of the tonstein are of different element contents in the same bed.
在高变质阶段的贫煤、无烟煤层中，煤层夹矸的粘土矿物成分以伊利石为主，高岭石次之。
In the lean coal bed and anthracite bed of high coal rank, the main composition of the clay mineral in the tonstein intercalations is illinite, Kaolinite takes second place.
造成这种煤的变质程度升高而夹矸成分转化的主要原因是区域变质作用及周围介质条件影响所致。
The main reason for the rise of the coal rank and its composition transformation is the process of regional metamorphism and the influence of medium conditions around it.
铜川矿区5＃煤层中的高岭石泥岩夹矸是由酸性火山灰在近地表的成煤条件下经酸性水淋滤、蚀变而成的。
The kaolinite tonstein in the seam5# is formed by acidic ash alterated in the acid medium in peat bog in tongchuan district.
采用仪器中子活化分析法(INAA)测定了华北晚古生代石炭纪-二叠纪58个煤及煤层夹矸和顶底板样品的稀土元素含量。
An INAA (Instrumental Neutron Activation Analysis) method was used to determine the abundance of rare-earth elements in 58 late Palaeozoic coals and related rocks in North China.
为了满足轻型放顶煤开采的需要，对6MG 2 0 0w型采煤机进行了技术改造，使其适应工作面倾角大、夹矸断层多的工作条件。
To meet the needs of coal fall down mining technology, the technical reformation have been made on 6mg200w shearer and therefore it can use in the big seam Angle, more ore and seam broken condition.
在回采过程中，解决了支架防倒防滑、机组电缆夹的防滑、防窜矸等技术难题；
The problems of anti-skid-incline and anti-scurry dirt are solved in the working process.
在回采过程中，解决了支架防倒防滑、机组电缆夹的防滑、防窜矸等技术难题；
The problems of anti-skid-incline and anti-scurry dirt are solved in the working process.
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