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- 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 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。
- 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。
- A DISCUSSION OF THE DEVONIAN TETRACORAL FOSSIL ASSEMBLAGE ZONES AND THE DETERMINATION OF THE BOUNDARY BETWEEN THE MIDDLE AND UPPER DEVONIAN 湖南泥盆纪四射珊瑚化石组合带及中、上泥盆统界线划分
- fossil assemblage zones 生物化石组合带
- 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。
- 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。
- Among them, the dinoflagellate, 39 species (including 1 new species ) 25 genera;green algae, 6 species, 3genera;and Acritarchs, 3 species, 2 genera. 5 algae assemblage zones were identified. 其中沟鞭藻类25属39种(含1新种),绿藻类3属6种,疑源类2属3种。
- Four conodont assemblage zones and one bed have been recognized in ascending order: 1. Pachycladina obliqua-Parachirognathus delicatulus Zone, 2. Neospatho-dus homeri-Neospathodus triangularis Zone, 3. Neogondolella cf. 在永宁镇组中识别出4个牙形石组合带(层)(由下而上):1.;Pachycladina obliqua-Parachirognathus delicatulus带;2
- The Permian conodonts described here include 20 species and one new species, with 6 conodont zones or assemblage zones recognized in ascending order as: Neogondolella serrata Zone, N. 本文描述了牙形刺20种;1新种。 本区二叠系自下而上可划分出六个牙形刺带或组合带:Neogondolella sorrata带;N.
- Idiognathoides corrugatus-Idiognathoides sinuatus assemblage zone is discovered in the lower part of Benxi Formation in southern Shandong and northern Jiangsu and absent in the central part of North China Platform. 在鲁南、苏北本溪组下部发现了Idiognathoides corrugatus-Idiognathoides sinuatus组合带,该组合带在地台中部缺失。
- The consistency of each other showed mineral assemblage zoning is indication of geochemical space zoning, and the zoning is characterized by order in long distance and disorder in shorter distance. 详细讨论了玲珑金矿田矿物组合和元素的空间分带,二者之间的一致性说明矿物组合的空间分带是宏观的元素地球化学分带,且具有远程有序和短程无序的特点。
- 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。
- FOSSIL CHAROPHYTE LAMPROTHAMNIUM GANCHAIGOU ENSIS ASSEMBLAGE ZONE OF MIDDLE -LATE EOCENE IN LENGHU AREA OF QAIDAM BASIN: ITS IMPLICATION FOR SEQUENCE BIOSTRATIGRAPHY 组合带及其层序生物地层学意义
- Morning assemblage is held in the school hall. 晨会在学校礼堂举行。
- The motion was put to the assemblage. 这项提议已提交大会了。
- 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。
- THE CARBONIFEROUS SYSTEM AND ITS FOSSIL ASSEMBLAGE CHARACTERISTICS IN NORTHERN XINJIANG 新疆北部石炭系地层层序和其化石组合特征
- Can you date the fossil exactly? 你能确定这化石的确切年代吗?