牙形石

The conodont sequence from the Late Carboniferous to the Late Triassic was primarily established in the Gongdise-Nyainqentanglha Stratigraphic Region.

在古生物学方面，初步建立了青藏高原冈底斯一念青唐古拉地层区晚石炭世一晚三叠世的牙形石序列。

Based on the analyse of the stratigraphic sequence of the Triassic and its covering strata and the Index of the Organic Metamorphic Maturity of conodont, the Triassic of the northern margin of the Gongdise-Nyainqentanglha Stratigraphic Region and the South of the Qiantang Stratigraphic Region was a promising target for the oil exploration.

通过三叠纪时期的沉积体系的时空演化序列，分析出三叠纪在冈底斯北缘、羌南地区形成了有利的生储盖的岩相配置，通过盆地热演化史和牙形石有机变质成熟度的分析，指出冈底斯一念青唐古拉地层区北缘和羌南的三叠系具有良好的油气勘探前景。

Laser ablation inductively coupled plasma mass spectrometry was used to establish radiometric U-Th-Pb ages and produce the records of rare earth elements of conodont of the Permian Maokou Formation in the Three Gorges area.

利用激光剥蚀电感耦合等离子质谱对三峡地区二叠系茅口组牙形石的U-Th-Pb同位素年龄进行测定。

After analyzing the paleogeographic reconstruction and the paleo Tethys Ocean flow surrounding the Tarim plate, a point was made that the alteration of conodont faunas of the Ordovician on the Tarim plate was jointly caused by the plate tectonics and ocean currents.

经过对奥陶纪全球各板块古地理位置和塔里木板块周边古特提斯洋洋流情况的分析，提出塔里木板块奥陶纪牙形石动物群分区归属期次性变化是由板块运动和洋流共同作用导致的。

They are Neogondolella facies, transitional facies, Hindeodus facies and HindeodusIsarcicella facies. Analysis of conodont geochemistry is a better way for studying paleoecology.

依三种生态类型在上述六种沉积相中的分布，划分了四个牙形石相，即：Neogondolella相，过渡相，Hindeodus相和Hindeodus-Isarcicella相。

Four phases of the biogeographic attribution can be divided in the Ordovician period,①the phase of pan-earth genera in the Tremadocian age,②the phase of mixture by South China and North China genera from the Floian to Dawanian age,③the phase of South China type from the Darriwillian to the middle Sandbian age,④the phase of North China type from the late Sandbian to the Hirnantian age.

把奥陶纪塔里木盆地的牙形石生物地理区的演化分为4个演化阶段，①特马豆克期泛球型属种阶段、②弗洛期到大坪期华南型和华北型混生阶段、③达瑞威尔期到桑比期中期华南型阶段以及④桑比期晚期到赫南特期华北型阶段。

The geochemical abnormity are characterized by strong correlation with the eustatic changes of sea level and the significant changes of paleoenvironment in the east Yangtze Gorges area.

结果表明，该区早奥陶世牙形石的REE和微量元素地球化学异常与海平面的升降、古环境的变化有关联，与已有的古生物地层、古地理研究结果一致。

And based on the correlation between the conodonts and brachiopods, the conflict of the division of the Late Carboniferous-Early Permian between the Gondwana and Tethys was discovered.

发现了牙形石和腕足类在晚石炭世一早二叠世地层划分的意见分歧，指出现在的冈瓦纳相和特提斯相晚石炭世一早二叠世地层划分的主导门类之间还存在着巨大矛盾，有待于进一步解决。

The paleochemical characteristics of paleoseawater from the Early Ordovician of Yangtze Craton are reconstructed through contrastive research of REE and trace element composition, Ce anomalies and Sm/Nd ratio of conodonts.

利用激光剥蚀电感耦合等离子质谱对扬子克拉通宜昌三峡地区早奥陶世不同时期海相碳酸盐岩地层中的牙形石个体进行了原位分析，并与已发表的世界其他地区古海水的稀土元素组成进行了比较，利用REE和微量元素组成、δCe和Sm/Nd比值等地球化学指标恢复了该时期古海水的地球化学性质。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。