shales

The variety of these mudstone and shales is very complex in lacustrinehigh-frequency cycle.

这些泥岩和页岩在湖相高频旋回中的变化相当复杂.

The genetic types of shales in the area under research are of humus and mixed type.

研究区油页岩成因类型为混合型和腐殖型.

Oil-yielding organic matter is contained in the shales.

在这些页岩里有产油的有机物质.

Not since shales escape, right?-Yeah. What's going on, Richard?

自从席尔斯越狱后, 对 吧 ? - 有问题吗, 理查?

The ichthyosaur remains are found in black, bituminous marine shales deposited about 190 million years ago.

人们在黑色的 、 含沥青的海洋页岩中发现了约1.9亿年前沉积下来的鱼龙化石.

Thus clays and shales tend to be impermeable.

因此粘土和页岩就往往不透水.

Sandstones are, as a rule , interbedded with shales.

砂岩通常都与页岩互层.

These cyclic sequences are overlain by the lagoon dolomitic mudstones and shales.

米级旋回层序之顶覆以厚度不等的?

Oil-yielding organic matter is contained in shales.

在这些页岩里有产油“的”有机“物质”.

Alternating sandstones and shales are regarded as important.

蚀变的砂岩和页岩是很重要的.

Uranium is frequently enriched by sorption or chemical combination in shales, lignites and phosphorites.

铀经常为页岩, 泥炭和磷块岩所吸附或化学结合态而富集.