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.There are four principal types of limestones.石灰岩有四种主要类型.Soil: Altitude 260 meters, southeast orientation . Limestone gr...

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The headstones were tilted.这块墓石是倾斜的.Lines of simple white headstones mark the graves.一排一排的白色墓石勾勒出这座公墓.The Chinese characters are barely visible etched into the headstones and burial bricks.刻在墓碑上的汉字几乎已经无法辨认....

Tombstones jutted out of the ground in broken clusters.墓碑三三两两地竖立在地面上。All that money for tombstones!所有这些花在墓碑上的钱都是白费了!The skull - and - crossbones crudely carved on the first tombstones was replaced by a winged cherub.最初粗糙...

The fossils at Dinosaur Cove are embedded in hard sandstones.恐龙峡谷中的化石都嵌在坚硬的砂岩中。Alternating sandstones and shales are regarded as important.蚀变的砂岩和页岩是很重要的.The coarsest sandstones intercalated with grey mudstones.最粗粒砂岩与灰色泥岩...

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