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- With rapid burial in a moist anoxic environment, such as the coal swamps of the Carboniferous period, carbonaceaous films of plant material like fern fronds may survive. 迅速埋藏于潮湿的缺氧环境下,正如媒在石炭纪沉没,类似蕨类植物的含碳植物材料即可能存活下来。
- The Carboniferous Period. 石炭纪,石炭系
- In the Carboniferous Period, 360 million years ago, the greatest evolutionary innovations were the amniotic egg which allowed early reptiles to move away from waterside habitats and colonize dry regions. 在石炭纪期间,360百万年前,最巨大的演变创新是允许早期的爬行动物从海滨栖所行动和拓殖干燥地区的羊膜蛋。
- While from west to northeast the average values of 87 Sr / 86 Sr are increasing in plane,indi cating that the marine transgression during the Carboniferous period happened in direction from west toward east. 平面上由西向东北方向87Sr/86Sr比值增大,说明石炭纪海侵是由西向东侵入的。
- There are great bifurcations as yet on the structural environment and on the evolution of the Xingmeng Paleozoic orogenic belt in Southeast Inner Mongolia during the Carboniferous Period. 内蒙古东南部古生代造山带在石炭纪时期的构造环境和构造演化,至今在认识上存在较大的分歧。
- carbonized vegetable matter deposited in the Carboniferous period. 在石炭层沉淀的碳化的植物物质。
- The Stratigraphical Division and Stratigraphic Correlation in the Carboniferous Period in Fujian province 福建省石炭纪地层划分与对比
- Carboniferous period, the early gymnosperms (such as etc.) is very impressive, but the number of ferns most abundant. 石炭纪时,早期的裸子植物(如苏铁、松柏、银杏等)非常引人注目,但蕨类植物的数量最为丰富。
- The residual basins were deeply buried in Himalayan Period,and the Carboniferous System was piecemeal distributed in the depressed belts of orogenic zone. 巴颜浩特盆地的东部坳陷和南部坳陷,石炭系残留面积大,沉积厚度大,烃源岩类型齐全,既有暗色泥岩又有碳酸盐岩和可燃有机岩,具有较高的生烃潜力;
- The region was subsequently inundated by a shallow sea. Sediments laid down during this time are represented by the Carboniferous marble of Yuen Long and Ma On Shan. 该地区其后遭浅海淹没,期间沉积物不断积聚,元朗和马鞍山的石炭纪大理岩,便是该时期的产物。
- The lamellibranchiiiata fossils and coral fossils of Upper Carboniferous period had been discoveried in the detrital rock and carbonafite rock by the geologic survey of the area of Yishenjilike mountain. 摘要通过对伊什基里克山特克斯达坂一带地质调查,首次于该区发现了一套含晚石炭世双壳、珊瑚、腕足及植物化石的碎屑岩。
- Datong coal-bearing strata for the Jurassic Datong group, the Carboniferous Taiyuan, Shanxi. 大同市含煤地层为侏罗纪大同组,石炭系太原组、山西组。
- As for the main reservoir-caprock assemblage, the Carboniferous volcanic rock is the reservoir while the Permian and Triassic mudstone is the cap rock. 主要的储盖组合是以石炭系火山岩为储层,二叠系和三叠系泥岩为盖层。
- Echinoconchus resembles Echinaria in the character of shells and they are important characteristic fossil of the Brachioplda in the Carboniferous. Echinoconchus与Echinaria是特征相似同产出于石炭纪地层中的腕足动物中的两个重要标准化石属。
- That period was a bright page in the history of Chinese literature. 那个时期是中国文学史上光辉的一页。
- Studying on the Carboniferous Sequence Stratigraphy of the Seamount Carbonate Platform in Paleo-Tethys,Southwestern Yunnan,China? 滇西南古特提斯石炭纪海山碳酸盐台地的层序地层学研究
- Let us hope that the period of this injustice will be over soon. 让我们希望这个不公正的时期很快结束吧。
- The two karat developing periods for the Middle and Upper Ordovician in the Lunnan area are consistent with two transgressions of the Carboniferous. 轮南地区发育的两期岩溶与石炭纪两次较大的海侵时间相一致。
- While those of the Carboniferous are rhyolite-doctite-andesite formation of transitional-continental environment with crustal compositions. 石炭系火山岩主要是流纹岩-英安岩-安山岩建造,它们产出于海陆过渡相-陆相环境,属于地壳成分。
- The evolution of the lithofacies palaeogeography of the Carboniferous in South China was characterized with succession, development and stage. 从早石炭世岩关期至晚石炭世马平期,岩相古地理演化呈现出继承性、发展性和阶段性的特点。