limestones

The isotopic signatures of most ancient limestones indicated the same process.

大多数古代石灰岩的同位素特征说明了同样的过程.

The karstification benefited improvement for reservoir limestones to a certain extent.

岩溶作用使得灰岩的储集性能在一定程度上得到了改善。

The nucleating agent is fluorbaryt. Origin of the Oil and Gas Accumulation Related to Fluorite Veins in Lower Ordovician Limestones, Tarim Basin, Northwest China: Evidences from High Resolution Borehole Electric Image Logs

塔里木盆地奥陶系萤石脉油气叠合成藏作用高分辨率成像测井资料提供的证据

There are four principal types of limestones.

石灰岩有四种主要类型.

The Neoproterozoic Jiuliqiao Formation in the Huainan region consists of sandy , silty, stromatolitic and dolomitic limestones.

安徽淮南地区新元古代九里桥组主要由砂质 、 泥质灰岩,叠层石灰岩和白云质灰岩组成.

The melanic mudstones, coal beds and limestones in the lower part of the Carboniferous-Permian of the Upper Paleozoic are of high organic matter content, high thermal evolution level and high gas generating potential, which provided sufficient gas source for forming Paleozoic gas reservoirs;

上古生界石炭&二叠系下部沉积的暗色泥岩、煤层和石灰岩有机质含量高、热演化程度高、生气能力强，为古生界气藏的形成提供了充足的气源；

Alkali aggregate expansion reaction of mottled micrite dolomitic limestones

豹斑白云质泥晶灰岩的混凝土碱骨料反应膨胀行为

Rocks therein, namely, quartzose sandstones and limestones, exhibit clear brittle behavior.

该处岩石，如石英砂岩和石灰岩在变形过程中显示了清晰的脆性特征。

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。

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。

Fracture densities also increase in dolomitic layers compared to limestones and anhydrates.

与石灰岩层和脱水层比,在白云岩层的裂缝密度也有所增加.

Soil: Altitude 260 meters, southeast orientation . Limestone grounds , argilo-limestones alluvial and cryoclastic.

土质: 海拔260米, 东南方向, 石灰质土地,农业石灰质,湖泊型以及核破裂型.