1·Much of the new gas is coming from what were once called "unconventional" sources, such as the gas shales of Texas, Utah and Wyoming.
很多新的天然气来自于那些以前被称为非常规资源的地方，例如犹他州，怀俄明州和德州的页岩气。
2·The effectiveness of pressure seals in the subsurface may be evaluated by making a calculated fluid pressure profile of the overlying shales.
在地下，压力封闭的有效性可以通过计算上层页岩的流体压力剖面来估计。
3·There are shales and sandstones, which are marked by downslope in the continental basins and called the formation of polymict sandstone.
往上变为近海湖盆沉积，由砂岩、页岩组成，具有陆相盆地滑坡的标志，称为复矿砂岩建造。
4·Cambrian source rocks, including mud shales and carbonates, are among the main source rocks in Tarim basin.
寒武系烃源岩是塔里木盆地主要烃源岩之一，包括泥页岩和碳酸盐岩。
5·Impermeable formations, such as shales and siltstones, tend to be finer grained or of a mixed grain size, with smaller, fewer, or less interconnected pores.
不渗透的地层如页岩与粉砂岩。因颗粒很细或粗细颗粒混杂。只有较小，较少连通不好的孔隙。