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.

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There are four principal types of limestones.

石灰岩有四种主要类型.

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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.

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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.

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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.

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