查询词典 Palaeo-asiatic

The Jurassic sedimentary characteristics and palaeo-structure distribution of Longnan coalfield are researched based on the data analysis of study area.

通过对陇南煤田已知煤矿点有关资料的分析，研究了该区侏罗纪煤系的沉积特征和古构造展布特征。

Trontium isotope test analysis indicates that relationship exists between~(87)Sr/~(86)Sr ratios and the variation of seawater, evolution of palaeo-geographicalconditions in the region of Tazhong is the direct factor which controls the change ofthe 87Sr / 86Sr ratios and dolomitization is also an important factor.

r同位素测试分析表明，~(87)Sr/~(86)Sr比值与海水变化有关，塔中地区古地理环境演化是~(87)Sr/~(86)Sr比值变化的直接控制因素，白云石化作用对~(87)Sr/~(86)Sr比值有着重要作用。

Tectonic evolution of Lanping basin, controlled by closure of Palaeo-Tethys and collisional orogen between India plate and Asia continent, has undergone three evolutional stages, i. e., intracontinental rift, sag basin and strike-slip basin.

兰坪盆地的构造演化受控於古特提斯的闭合及印度与亚洲大陆碰撞的造山作用，盆地经历了陆内裂谷、拗陷盆地和走滑盆地3个阶段的发育过程。

But the geological and geochemical analyses showed that there existed a set of high quality marine source rock in the platform slope facies of Middle Ordovician Pingliang Formation. The oil and gas generated from the source rock of Pingliang Formation was accumulated firstly in the central Palaeo-uplift and its surrounding regions. The thermogenic asphalt in palaeo-uplift carbonate reservoir indicated that oil accumulation completed transition from oil to gas in the Lower Crataceous. Along with the palaeo-uplift axis convection and the formation of westward monocline in the Late Crataceous, gas from the palaeo-reservoir was finally accumulated in the weathering crust of Majiagou carbonate reservoir.

地质和地球化学分析证实，盆地西、南缘台缘深水斜坡相的中奥陶统平凉组存在优质海相烃源岩，其形成的油气最早富集在中央古隆起及其周围；伴随着中央古隆起带轴部的向东迁移和早白垩世末盆地西倾大单斜的定型，平凉组烃源岩在早白垩世生烃高峰期生成的天然气和早期古油藏裂解气，由中央古隆起带向北东方向发生二次运聚，最终在盆地中部奥陶系马家沟组风化壳中聚集成藏，即形成靖边大气田。

Meanwhile, the Palaeo species consists of Panto Palaearctic species, Mid Asian species, European species, Euro Central Asian species, endemic species, Mediterranean species, Euro Siberian species and Central Asian species, etc.

蚂蚁与人类有着密切的关系〔4～6〕，大多数蚁类有改良土壤、传播花粉、捕食害虫，作为食物和药物等用途，但也有部分蚁类对人类是有害的。

The research leads to following conclusions: A The age of the ferromanganese contacting with the upper phosphate layer is 14.9 Ma; B The crust had been grown continually without sedimentation interruption since 14.9 Ma, suggesting that it can be used to rebuild the environment of palaeo-ocean and palaeo-climate from 14.9 Ma to 0 Ma; C The sedimentation interruption between the ferromanganese and the upper phosphate layer lasted around 4 Ma; D Between 19 Ma and 22.7 Ma, great phosphatization event happened in this area, which might cause the sedimentation interruption from 22.7 Ma to 14.9 Ma; E The ferromanganese crust began to grow from 75 Ma.

对超微量Sr同位素测试得到的富钴结壳磷酸盐年龄进行分析认为：(1)上部富钴结壳与上层白色磷酸盐化层接触部位的年龄为14.9 Ma；(2)自14.9 Ma以来，结壳的生长是连续的，沉积间断发生的可能性非常小，该样品可以用来进行14.9 Ma年以来古海洋、全球变化的重建工作；(3)上层白色磷酸盐化层与其上部的富钴结壳之间存在4 Ma的沉积间断；(4)19 Ma~22.7 Ma左右在该区发生过大规模的磷酸盐化作用，磷酸盐化作用可能造成磷酸盐化时期(19 Ma~22.7 Ma)和之后4 Ma(19 Ma~14.9 Ma)富钴结壳的沉积间断；(5)结壳的初始生长年龄在75 Ma左右；(6)老结壳的生长速度要远低于新结壳的生长速度。

Quantitative grain fluorescence technique is for the first time applied in study of Silurian palaeo-oil pools distribution in the Central Tarim Basin.

引进定量颗粒荧光技术，研究了塔里木盆地塔中隆起志留系的油藏分布特征，着重探讨了古油藏叠合连片分布的可能性。

Three structural positional forms of Baishugou Formation arestudied in the paper,the first structural positional form is wide distribution in the bottom of thesecondary grade thrust一detachment fault inner nappe,overlying thrusting sheet consisted of Lu-anchuan Group of Middle Proterozoic,the underlying strata are Taowan Group of Lower Palaeo-zoic,Baishugou Formation was regarded as bo...

本文研究了白术沟组的三种构造位态，确定其主要呈第一种构造位态广泛分布于推覆体内部某次一级逆冲滑脱断层的下部，其上覆逆冲岩席由震旦系栾川群及中元古界官道口群构成，下伏地层为下古生界陶湾群。

According to the latest researches, there is a set of MesozoicT_3-J_(1+2 palaeo-foreland basin deposits in the deep-seated Songliao Basin, which are composed of detrital rock, coal and volcanic rock.

根据最新的研究成果，松辽盆地深层存在一套早中生代(T3-J1+2)含煤和火山岩的古前陆盆地沉积。

This paper presents the high-resolution sequence of vegetation change of the last inter-glacial period in Xishan Mountain,Beijing by pollen analysis and thermoluminescent dating technology with reconstruction of the palaeo-vegetation and palaeo-environment of this region.

末次冰期—间冰期气候旋回研究是过去的全球变化研究的三大重点之一，通过孢粉分析和热释光断代建立了北京西山末次间冰期植被的演化序列，研究了该地区古植被与古环境的演化规律。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。