shales

shales and clays are responsible for most natural radioactivity, so the gamma ray log often is a good indicator of such rocks.

泥质和粘土是主要的自然放射性源，因此伽马射线测井可以很好地指示这类岩石。

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study of the basic properties of oil shales

油页岩基础工艺性质的研究

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This paper studies the hydration sloughing mechanism of three kinds of hard and brittle shales of Shahejie formation in Gangdong oilfield.

研究了大港油田港东地区沙河街地层三种硬脆性泥页岩的水化坍塌机理。

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Thus clays and shales tend to be impermeable.

因此粘土和页岩就往往不透水.

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REE and trace element data supported the conclusion further. The chemical index of weathering ( CIW) as well as TiO 2 and Al 2 O 3 concentrations reflected a more intense weathering in the provenances of the shales in north part.

北部页岩明显偏高的TiO2和Al2O3含量以及化学风化指数（CIW）表明北部沉积物的源区经历了更强烈的风化作用。

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Sloughing mechanism of Shahejie shales in Eastern Dagang oil fields

港东沙河街泥页岩坍塌机理的研究

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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.

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La Th Sc and Th Sc Zr/ 10 discriminatory diagrams suggested that LF shales were formed in a tectonic setting of continental island arc, and the island arc might locate south margin of the studied area.

La Th Sc和Th Sc Zr10判别图清楚地表明，刘老碑组页岩形成于大陆岛弧构造环境，岛弧可能位于研究区的南部边缘。

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Re-Os isotope tracing and dating of black shales and oceanic anoxic events

黑色页岩与大洋缺氧事件的Re-Os同位素示踪与定年研究

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Induced porosity is typified by fracture development as found in some shales and limestones and by the vugs or solution cavities commonly found in limestones.

次生孔隙度是以某页岩和石灰岩的裂缝和石灰岩中的岩穴和溶洞为代表。

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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?

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Geochemical Study of Heavy Metal Contamination of Soils Derived from Black Shales at the HJC Uranium Mine in Central Hunan, China

湘中HJC铀矿区黑色页岩土壤重金属污染地球化学分析

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Alternating sandstones and shales are regarded as important.

蚀变的砂岩和页岩是很重要的.

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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.

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Sandstones are, as a rule , interbedded with shales.

砂岩通常都与页岩互层.

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Of sediment color a value lower profile and higher total organic carbon and black shales with marine planktonic environment for the emergence of direction was the reduction of marine hypoxia conditions.

研究剖面沉积物色度a值降低和总有机碳增高以及含海相浮游有孔虫黑色页岩的出现指示当时环境为海相缺氧的还原条件。

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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.

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A kind of borehole stabilizer, JHS, for hard and brittle shales is developed for solving the problem of instability of borehole in the Liaohe field.

针对辽河油田双南等地区井壁不稳定问题，研制了一种硬脆性泥页岩井壁稳定剂&JHS。

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Oil-yielding organic matter is contained in the shales.

在这些页岩里有产油的有机物质.

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studies show that the lower cambrian black shales in jindingshan of guizhou province are sapropelic type and mixed type oil-forming rocks.

结果表明，黑色岩系属生油岩，且为腐泥型和混合型生油岩，以腐泥型为主；

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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。

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Oil-yielding organic matter is contained in shales.

在这些页岩里有产油“的”有机“物质”.

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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?

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However, CORB outcrops are generally composed of red, reddish or purple shales and limestones.

而在陆地露头中，CORB主要为浅红色、红色或紫红色灰岩和页岩。

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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.

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