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- On the basis of the lithology, fossil assemblages and seismic wave groups, the Lower Jurassic in the northern Hami depression may be in ascending order into the Badaowan Formation and Sangonghe Formation. 哈密拗陷北部下侏罗统按其岩性、化石组合和地震波组等特征自下而上分为八道湾组和三工河组。
- There might be relatively long-term stratigraphic unconformities in successive fossil assemblage zones. 在连续的化石带里可能也会出现较长时间的地层不整合。
- The trace fossil assemblage of the Jidula Formation is referred to the Skolithos ichnofacies formed in high-energy subtidal shoreface and inte rtidal foreshore environments. 基堵拉组中的遗迹化石组合可归属于在高 能的潮下带的临滨和潮间带的前滨环境下产生的Skolithos遗迹相。
- The optimum biostratigraphic sequence was established. Ten fossil assemblage zones (RASC zones, in term of RASC distance) were identified, and regional geological time table was set up, which shows the relationship between age, strata, and RASC zones. 根据化石事件间的 RASC 距离,将这个最佳序列划出10个化石组合带,用 CASC 方法建立了区域地质年表,展示了地质年代、地层和RASC 分带之间的关系,并完成了井间对比。
- What is more, the Malagasy fossil assemblage lacks remains of several younger reptile groups usually found with the earliest dinosaurs, including the heavily armored, crocodilelike phytosaurs and aetosaurs. 此外,马达加斯加的化石组合中,缺乏爬行类比较年轻的种类,例如形似鳄鱼的植龙与鹫龙,身体都有厚重的甲胄保护,通常与早期恐龙一齐出土。
- Study is made on palaeozoic conodont fossil from Bachu Uplift and Awati Depression. 5 conodont fossil assemblage zones are identified.And their geological history and geological eras are discussed. 对塔里木盆地西部巴楚断隆、阿瓦提凹陷古生代产出的牙形刺化石进行了研究,建立了5个牙形刺化石组合带,讨论了其地史分布及其地质时代。
- CHARACTERISTICS OF THE PALAEOGENE FOSSIL ASSEMBLAGES AND STRATIGRAPHY OF THE JZ25-1S AREA, BOHAI BASIN 渤海湾盆地锦州JZ25-1南地区古近纪生物组合及地层特征
- EVOLUTION OF NORTH CHINA-TYPE EARLY CAMBRIAN SEDIMENTARY ENVIRONMENTS AND TRACE FOSSIL ASSEMBLAGES IN HENAN PROVINCE 河南省(华北型)早寒武世沉积环境演化及其痕迹化石组合
- He found a piece of fossil of an ancient bird. 他发现一块古代鸟类的化石。
- This fossil may be over 2 million years old. 这化石可能超过二百万年了。
- Can you date the fossil exactly? 你能确定这化石的确切年代吗?
- Fossil assemblages 生物组合
- Isn't Professor Bell an old fossil? 贝尔教授真是个老顽固。
- A microscopic fossil, as of a pollen grain or unicellular organism. 微体化石一种微小的化石,如花粉粒或单细胞有机体的化石
- If we squander our fossil fuels, we threaten civilization. 如果我们浪费矿物燃料,我们就威胁文明。
- The gossip tossed the mossy blossom fossil. 爱讲闲话者向上抛长满苔藓的花化石。
- A finite list of choices; our finite fossil fuel reserves. 为数有限的选择; 我们有限的矿物燃料贮量
- The solid matter in which a fossil or crystal is embedded. 基质,脉石嵌有化石或水晶的固体物质
- Coal is usually referred to as a fossil fuel. 煤通常被称为矿物燃料。
- The fossil may over 2 millon years. 这化石可能超过二百万年了.